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In Situ BioTransformation of Mercury-Contaminated Groundwater In Kazakhstan Utilizing Native Bacteria (Presentation) |
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The Northern outskirts of Pavlodar were contaminated with mercury as a result of activity at the former PO "Khimprom" chemical plant. The plant produced chlorine and alkali from t...
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"EFFECT OF NON-TARGET ORGANICS ON ORGANIC CHEMICAL TRANSPORT." |
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NRMRL/IO
BOOK
NRMRL-CIN-1363
Enfield*, C.G., Lien*, B.K., and Wood*, A.L. "Effect of Non-Target Organics on Organic Chemical
Transport."
Published in: Humic Subs...
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(226) RA AND (228) RA ACTIVITIES ASSOCIATED WITH AGRICULTURAL DRAINAGE PONDS AND WETLAND PONDS IN THE KANKAKEE WATERSHED, IL-IN, USA |
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Background radioactivity is elevated in many agricultural drainage ponds and also constructed wetland ponds in the Kankakee watershed. During 1995-1999, gross-a and -B activities w...
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15N NATURAL ABUNDANCE AND 15N LABELLING STUDIES IN FOREST ECOSYSTEMS |
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The relative amounts of the two stable isotopes of Nitrogen (N), 15N, and N, vary predictably in soils and plant tissues of forests and other non-cultivated ecosystems. light fract...
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In situ BioTransformation Of Mercury-Contaminated Groundwater In Kazakhstan Utilizing Native Bacteria |
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The Northern outskirts of Pavlodar were contaminated with mercury as a result of activity at the former PO "Khimprom" chemical plant. The plant produced chlorine and alkali from t...
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A BENCH SCALE STUDY ON BIODEGRADATION AND VOLATILIZATION OF ETHYLBENZOATE IN AQUIFERS. (R825549C039) |
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Experiments were conducted to investigate the fate of ethylbenzoate and soil microorganisms in shallow aquifers. Biodegradation and volatilization have been identified as the ma...
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A CASE STUDY OF SOILS IN THE U.S. |
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Assessment of environmental condition is critical to wise management and policy decisions. However, for some concerns such as sustainability, it is difficult to assess environmenta...
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A COMPARISON OF IN-SITU VITRIFICATION AND ROTARY KILN INCINERATION FOR SOILS TREATMENT |
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In the hazardous waste community, the term "thermal destruction" is a catch-all phrase that broadly refers to high temperature destruction of hazardous contaminants. ncluded in the...
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A COMPARISON OF THE HYDROLOGIC CHARACTERISTICS OF NATURAL AND CREATED MAINSTEM FLOODPLAIN WETLANDS IN PENNSYLVANIA. (R824905) |
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An understanding of wetland hydrology is critical for the assessment of the success of created wetlands relative to natural wetlands. Our objective was to determine if hydrologic c...
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A COMPUTATIONAL CHEMISTRY STUDY OF THE ENVIRONMENTALLY IMPORTANT ACID-CATALYZED HYDROLYSIS OF ATRAZINE AND RELATED 2-CHLORO-S-TRIAZINES |
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Many chlorine-containing pesticides, for example 2-chloro-s-triazines, are of great concern both environmentally and toxicologically. As a result, ascertaining or predicting the fa...
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A COMPUTER-CONTROLLED SYSTEM FOR GENERATING UNIFORM SURFACE DEPOSITS TO STUDY THE TRANSPORT OF PARTICULATE MATTER |
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Improved methods for measuring and assessing microenvironmental exposure in individuals are needed. How human activities affect particulate matter in the personal cloud is poorly...
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A DISTRIBUTED REACTIVITY MODEL FOR SORPTION BY SOILS AND SEDIMENTS. 14. CHARACTERIZATION AND MODELING OF PHENANTHRENE DESORPTION RATES. (R825962) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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A FOUNDATION FOR THE RISK-BASED TREATMENT OF GASOLINE-CONTAMINATED SOILS USING MODIFIED FENTON'S REAGENT. (R826163) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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A METHOD FOR CORING INLAND, FRESHWATER WETLAND SOILS. (R824905) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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A MULTI-LABORATORY EVALUATION OF METHODS FOR DETECTING ENTERIC VIRUSES IN SOILS |
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Two candidate methods for the recovery and detection of viruses in soil were subjected to round robin comparative testing by members of the American Society for Testing and Materia...
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A PROBABILISTIC APPROACH FOR ANALYSIS OF UNCERTAINTY IN EVALUATION OF WATERSHED MANAGEMENT PRACTICES |
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A computational framework is presented for analyzing uncertainty in model estimates of water quality benefits of best management practices (BMPs) in two small <10 km2 |
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A Pyoverdin Siderophore Produced By Pseudomonas aeruginosa CHL-004 Binds Lead And Other Heavy Metals |
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Heavy metal pollution in soils, sediments and wastewater poses a significant environmental and public health threat due to toxicity and the potential for bioaccumulation in both pl...
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A Pyoverdin Siderophore Produced By Pseudomonas aeruginosa CHL-004 Binds Lead And Other Heavy Metals - (Poster) |
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Heavy metal pollution in soils, sediments and wastewater poses a significant environmental and public health threat due to toxicity and the potential for bioaccumulation in both pl...
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A SEMI-AUTOMATED APPROACH FOR DETECTING AND LOCATING SWINE ANIMAL FEEDING OPERATIONS OVER REGIONAL AREAS |
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Surface runoff from animal feeding operations (AFO's) and its infiltration into ground water can
pose a number of risks to water quality mainly because of the amount of animal ...
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A SOIL SPATIAL DATA FRAMEWORK FOR ENVIRONMENTAL MODELING IN THE CONTIGUOUS US |
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A suite of soil and related data-layers have been developed for environmental assessments of the effects of tropospheric ozone exposure and nitrogen deposition on forests, and gl...
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A STABLE ISOTOPE ANALYSIS OF SOIL CARBON DENSITY FRACTIONS FOLLOWING 4 YEARS OF CONTINUOUS CLIMATE CHANGE EXPOSURE IN A DOUGLAS FIR MESOCOSM STUDY |
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We conducted a 4-year full-factorial study of the effects of elevated atmospheric CO2 and temperature on Douglas fir seedlings growing in reconstructed native forest soils in mesoc...
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A STUDY OF DISSOLUTION RATE-LIMITED BIOREMEDIATION OF SOILS CONTAMINATED BY RESIDUAL HYDROCARBONS. (R825549C039) |
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The widespread release of organic chemicals in the environment frequently leads to ground-water contamination with non-aqueous phase liquids (NAPLs) because many of these organi...
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A STUDY OF THE DIURNAL AND NOCTURNAL MEASUREMENT OF POLYCHLORINATED DIBENZO-P-DIOXINS (CDDS) AND POLYCHLORINATED DIBENZOFURANS (CDFS) IN AMBIENT AIR |
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Soils have accumulated CDDs/CDFs both from air deposition and from direct application associated with a variety of human activities. If even limited quantities of these dioxins ca...
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A STUDY OF VEGETATION PROBLEMS ASSOCIATED WITH REFUSE LANDFILLS |
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A mail survey of about 1,000 individuals, was conducted for the purpose of determining the status of landfill vegetation growth. Of the 500 people responding, about 75 percent repo...
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A TOXICITY ASSESSMENT APPROACH FOR EVALUATION OF IN-SITU BIOREMEDIATION OF PAH CONTAMINATED SEDIMENTS |
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Polycyclic aromatic hydrocarbons (PAHs) represent a group of organic contaminants known for their prevalence and persistence in petroleum-impacted environment such as groundwater, ...
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A TREE GROWS TWICE AS LARGE IN BROOKLYN: HEIGHT AND LEAF AREA WERE CORRELATED WITH OZONE EXPOSURE |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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A UNIFORM VERSUS AN AGGREGATED WATER BALANCE OF A SEMI-ARID WATERSHED. (R824784) |
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Hydrologists have long struggled with the problem of how to account for the effects of spatial variability in precipitation, vegetation and soils. This problem is particularly acut...
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ABIOLOGICAL METHYLATION OF MERCURY IN SOIL |
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This work defines several factors influencing the methylation of mercuric ion in soil. Two of the most important findings were that it is possible to extract the mercury methylatin...
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ABIOTIC REDUCTION AND DETOXIFICATION OF CHROMATE PRESENT IN SOILS |
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Theoretical and experimental research has supported the assertion that Cr(III) species are the most stable, immobile, and nontoxic forms of chromium and that they may form rapidly ...
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ABIOTIC TRANSFORMATION IN WATER, SEDIMENTS, AND SOIL |
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Both abiotic and biotic transformations of pesticides occur simultaneously in the environment. lthough the dominance of abiotic transformations was demonstrated in some cases, it o...
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ACCUMULATION OF ATMOSPHERIC SULFUR BY PLANTS AND SULFUR-SUPPLYING CAPACITY OF SOILS |
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The Tennessee Valley Authority conducted studies to measure the amount of sulfur (S) that is transferred from the atmosphere to agro-ecosystems and to determine the S-supplying cap...
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ACCUMULATION OF CESIUM-137 AND STRONTIUM-90 IN PONDEROSA PINE AND MONTEREY PINE SEEDLINGS |
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Because Pinus ponderosa (Dougl.ex Laws) and P. radiate (ID.Don) have exceptionally fast growth rates and their abscised needles are not readily dispersed by wind, these species may...
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ACCUMULATION OF PERCHLORATE IN TOBACCO PLANTS AND TOBACCO PRODUCTS |
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Previous field and laboratory studies with vascular plants have shown that perchlorate is transported from perchlorate fortified soils and is accumulated in the plant tissues and o...
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ACID DEPOSITION AND WATERSHED CHARACTERISTICS IN RELATION TO LAKE CHEMISTRY IN NORTHEASTERN MINNESOTA |
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The relationship between lake sensitivity to atmospheric acidic inputs and the neutralization capacity of watersheds is examined for 267 lakes in northeastern Minnesota. Three wate...
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ACID EXTRACTION TREATMENT SYSTEM FOR TREATMENT OF METAL CONTAMINATED SOILS |
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The Acid Extraction Treatment System (AETS) reduces the concentrations and/or leachability of heavy metals in contaminated soils so the soil can be returned to the site from which ...
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ACID PRECIPITATION AND DRINKING WATER QUALITY IN THE EASTERN UNITED STATES |
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A research project was conducted to provide accurate modern and historical data on drinking water quality and the possible effect of acid precipitation on water samples. Samples of...
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ACID RAIN AND SOIL MICROBIAL ACTIVITY: EFFECTS AND THEIR MECHANISMS |
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In the investigation, our aim was to determine if acid rain affects soil microbial activity and to identify possible mechanisms of observed effects. A Sierran forest soil (pH 6.4) ...
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ACID/HEAVY METAL TOLERANT PLANTS |
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This report summarizes the results of Mine Waste Technology Program (MWTP) Activity III, Project 30. The objective of Project 30 was to select populations (i.e., ecotypes) from nat...
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ACIDIC DEPOSITION AND FOREST SOILS: POTENTIAL CHANGES IN NUTRIENT CYCLES AND EFFECTS ON TREE GROWTH |
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The National Acid Precipitation Assessment Program concluded (NAPAP, 1991) that direct above ground impacts of acidic deposition at present levels are not expected in low-elevation...
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ACIDIC DEPOSITION IN THE NORTHEASTERN U.S.: SOURCES AND INPUTS, ECOSYSTEM EFFECTS, AND MANAGEMENT STRATEGIES |
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Acidic deposition results from the emissions of air pollutants. Effects of acidic deposition in the northeastern US include the acidification of soil and water, causing stresses t...
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ACIDIC DEPOSITION PHENOMENON AND ITS EFFECTS: CRITICAL ASSESSMENT REVIEW PAPERS. VOLUME 1 |
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This document is a review and assessment of the current scientific knowledge of the acidic deposition phenonemon and its effects. The areas discussed include both atmospheric (Volu...
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ACIDIC DEPOSITION PHENOMENON AND ITS EFFECTS: CRITICAL ASSESSMENT REVIEW PAPERS. VOLUME 2 |
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This document is a review and assessment of the current scientific knowledge of the acidic deposition phenonemon and its effects. The areas discussed include both atmospheric (Volu...
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ACIDIC PRECIPITATION EFFECTS ON TERRESTRIAL VEGETATION |
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Acid precipitation is a significant air pollution problem in North America and Europe. Here, large amounts of sulfur and nitrogen oxides and many other substances are emitted into ...
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ACIDIFICATION OF AQUATIC AND TERRESTRIAL SYSTEMS: CHEMICAL WEATHERING |
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The pH and p(epsilon) of the terrestrial and aquatic environment is determined by coupled reactions of oxidation-reduction and acid-base. If disturbances are created in elemental c...
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ADDING GLOBAL SOILS DATA TO THE AUTOMATED GEOSPATIAL WATERSHED ASSESSMENT TOOL (AGWA) |
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The Automated Geospatial Watershed Assessment Tool (AGWA) is a GIS-based hydrologic modeling tool that is available as an extension for ArcView 3.x from the USDA-ARS Southwest Wate...
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ADDING THE THIRD DIMENSION TO LANDSCAPE ECOLOGY |
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Landscape indicator statistical models for water quality in streams are commonly developed using land use/land cover and elevation data. However, surficial soils and geologic condi...
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ADSORPTION AND DESORPTION OF HEXACHLOROBIPHENYL. A. EXPERIMENTAL RESULTS AND DISCUSSIONS. B. ANALYSIS OF EXCHANGEABLE AND NONEXCHANGEABLE COMPONENTS |
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The purpose of this report is to present the experimental and theoretical results that lead to the development model for the analysis of adsorption and desorption of hexachlorobiph...
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ADSORPTION CHARACTERISTICS OF PERCHLORATE IN SOILS |
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Perchlorate(CI04) is an oxyanion that originates as a contaminant in ground and surface waters from the dissolution of ammonium, potassium, magnesium or sodium salts. Perchlorate i...
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ADSORPTION OF CADMIUM ON BIOSOLIDS-AMENDED SOILS |
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A considerable controversy exists over the biosolid phase (organic or inorganic) responsible for the reduction in phytoavailable Cd in soils amended with biosolids as compared to s...
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ADSORPTION OF CADMIUM ONTO DIFFERENT FRACTIONS OF BIOSOLID-AMENDED SOILS |
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We hypothesized not only organic but also inorganic fraction in biosolids controls the metal availability in soil systems. To test this hypothesis we conducted Cd adsorption experi...
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ADSORPTION OF CADMIUM ONTO ORGANIC, TOTAL INORGANIC, AND METAL OXIDE FRACTIONS IN BIOSOLIDS AND BIOSOLID-AMENDED SOILS |
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The environmental impact and potential hazards of metals in biosolids to plants, animals and the human food chain from biosolids application on soils has been studied for decades. ...
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ADSORPTION OF ENTEROVIRUSES TO SOIL CORES AND THEIR SUBSEQUENT ELUTION BY ARTIFICIAL RAINWATER |
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The adsorption and elution of a variety of human enteroviruses in a highly permeable, sandy soil was studied by using cores (43 by 125 mm) collected from an operating recharge basi...
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ADSORPTION OF LEAD FROM A CONTAMINATED SOIL TREATED WITH PHOSPHORUS AND MANGANESE OXIDES BY APRAGUE-DAWLEY RATS |
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In addition to the formation of insoluble lead (Pb) compounds as a mean of reducing Pb bioavalability, adsorption is another potentially important process controlling the bioavaila...
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ADSORPTION OF ORGANIC CATIONS TO SOILS AND SUBSURFACE MATERIALS |
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A study of the fundamentals of adsorption of amphiphilic organic cations on natural and pristine surfaces was conducted to elucidate (i) the factors that influence the extent of ad...
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ADSORPTION OF SURFACTANT ON CLAYS |
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Surfactant used to enhance remediation of soils by soil washing are often lost in the process. either the amount nor the cause of this loss is known. t is assumed that clays presen...
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ADSORPTION OF SURFACTANTS |
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Adsorption of surfactants on particles affects their distribution, fate, and effects in natural waters. xperiments were conducted to study the properties of surfactant (charge and ...
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ADSORPTION, DEGRADATION, AND PLANT AVAILABILITY OF 2,4-DINITROPHENOL IN SLUDGE-AMENDED CALCAREOUS SOILS |
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Dinitrophenol (DNP) is a moderately weak acid that is expected to be highly labile (leachable and plant available) in high-pH soils. The adsorption and degradation behavior of DNP ...
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ADSORPTION, MOVEMENT, AND BIOLOGICAL DEGRADATION OF LARGE CONCENTRATIONS OF SELECTED PESTICIDES IN SOILS |
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Because of the importance of soil in biologically reducing the quantity and retarding the rate of pollutant movement into groundwater, this laboratory study was initiated to evalua...
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ADVANCES IN ENCAPSULATION TECHNOLOGIES FOR THE MANAGEMENT OF MERCURY CONTAMINATED HAZARDOUS WASTES |
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Although industrial and commercial uses of mercury have been curtailed in recent times, there is a demonstrated need for the development of reliable hazardous waste management tech...
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ADVANCES IN ENCAPSULATION TECHNOLOGIES FOR THE MANAGEMENT OF MERCURY-CONTAMINATED HAZARDOUS WASTES |
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Although industrial and commercial uses of mercury have been curtailed in recent times, there is a demonstrated need for the development of reliable hazardous waste management tech...
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AEROBIC AND ANAEROBIC DEGRADATION OF ALDICARB SULFONE IN SOILS |
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(S-methyl-14C) Aldicarb sulfone (2-methyl-2-(methylsulfonyl)proprionaldehyde O-(methylcarbamonyl)oxime) was incubated under aerobic and anaerobic conditions in surface and subsurfa...
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AGRICULTURAL SOURCES AND SINKS OF CARBON |
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Most existing agricultural lands have been in production for sufficiently long periods that C inputs and outputs are nearly balanced and they are neither a major source nor sink of...
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AGRICULTURE RUNOFF AND RESERVOIR DRAWDOWN EFFECTS ON A 2760-HECTARE RESERVOIR |
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The 2760-hectare Big Eau Pleine Reservoir in Marathon County, Wisconsin has experienced frequent winter fish kills and summer algae blooms since its construction in 1937. A study o...
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AGWA DESIGN DOCUMENTATION: MIGRATING TO ARCGIS AND THE INTERNET |
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Rapid post-fire watershed assessment to identify potential trouble spots for erosion and flooding can potentially aid land managers and Burned Area Emergency Rehabilitation (BAER) ...
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AIR DRYING AND PRETREATMENT EFFECTS ON SOIL SULFATE SORPTION |
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Drying, freezing, and refrigeration are commonly employed to facilitate the handling and storage of soil samples on which chemical, biological and physical analyses are to be perfo...
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AIR EMISSIONS FROM THE TREATMENT OF SOILS CONTAMINATED WITH PETROLEUM FUELS AND OTHER SUBSTANCES |
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The report updates a 1992 report that summarizes available information on air emissions from the treatment of soils contaminated with fuels. Soils contaminated by leaks or spills o...
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AIR PERMEABILITY IN UNDISTURBED VOLCANIC ASH SOILS: PREDICTIVE MODEL TEST AND SOIL STRUCTURE FINGERPRINT. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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AIRBORNE REDUCED NITROGEN: AMMONIA EMISSIONS FROM AGRICULTURE AND OTHER SOURCES. (R826371C006) |
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Ammonia is a basic gas and one of the most abundant nitrogen-containing compounds in the atmosphere. When emitted, ammonia reacts with oxides of nitrogen and sulfur to form part...
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ALTERATION OF SOIL METAL CHEMISTRY AND PHYTOAVAILABILITY ASSOCIATED WITH BIOSOLIDS APPLICATION (ABSTRACT) |
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Biosolids are a complex mixture which contain both inorganic and organic adsorbents. Thus, addition of biosolids to soil not only increases the environmental loading of toxic meta...
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ALTERNATIVE BIOLOGICAL TREATMENT PROCESSES FOR REMEDIATION OF CREOSOTE-CONTAMINATED MATERIALS: BENCH-SCALE TREATABILITY STUDIES |
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Bench-scale biotreatability studies were performed to determine the most effective of two bioremediation application strategies to ameliorate creosote and pentachlorophenol (PCP) c...
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ALTERNATIVE TREATMENT TECHNOLOGY EVALUATIONS OF CERCLA (COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION, AND LIABILITY ACT) SOILS AND DEBRIS |
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The U.S. Environmental Protection Agency (EPA) has instituted a research and regulatory development program for establishing the best demonstrated and available technology (DBAT) f...
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ALUMINUM SOLUBILITY, CALCIUM-ALUMINUM EXCHANGE, AND PH IN ACID FOREST SOILS |
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Important components in several models designed to describe the effects of acid deposition on soils and surface waters are the pH-A1 and Ca-A1 exchange relationships. f A1 solubili...
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AN ANALYTICAL MODEL FOR THE ASSESSMENT OF PESTICIDE EXPOSURE LEVELS IN SOILS AND GROUNDWATER. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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AN ENVIRONMENTAL SIMULATION MODEL FOR TRANSPORT AND FATE OF MERCURY IN SMALL RURAL CATCHMENTS |
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The development of an extensively modified version of the environmental model GLEAMS to simulate fate and transport of mercury in small catchments is presented. Methods for paramet...
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AN EVALUATION OF STREAM RESTORATION EFFECTIVENESS IN AN URBAN WATERSHED |
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The USEPA ORD Ground Water and Ecosystems Restoration Division has been conducting a before and after stream restoration evaluation of Mine Bank Run, a highly degraded stream in an...
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AN IMPROVED UNDERSTANDING OF SOIL CD RISK TO HUMANS AND LOW COST METHODS TO PHYTOEXTRACT CD FROM CONTAMINATED SOILS TO PREVENT SOIL CD RISKS |
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We have described a new paradigm for human risk from soil Cd that reflects many years of agronomic, nutritional and toxicological research. This new model for soil Cd risk reflect...
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AN IN VITRO GASTROINTESTINAL METHOD TO ESTIMATE BIOAVAILABLE ARSENIC IN CONTAMINATED SOILS AND SOLID MEDIA. (R825410) |
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A method was developed to simulate the human gastrointestinal environment and
to estimate bioavailability of arsenic in contaminated soil and solid media. In
this in vit...
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AN IN-SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF ARSENIC IN GROUND WATER |
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Contamination of ground-water resources by arsenic is a widespread environmental problem; consequently, there is an escalating need for developments and improvements of remedial te...
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AN IN-SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF ARSENIC IN GROUND WATER |
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Contamination of ground-water resources by arsenic is a widespread environmental problem; consequently, there is an escalating need for developments and improvements of remedial te...
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AN INTEGRATED, SCIENCE-BASED APPROACH TO MANAGING AND RESTORING UPLAND RIPARIAN MEADOWS IN THE GREAT BASIN OF CENTRAL NEVADA |
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Riparian corridor and meadow ecosystems in upland watersheds are of local and regional importance in the Great Basin. Covering only 1-3% of the total land area, these ecosystems co...
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AN OVERVIEW OF PARTITIONING AND BIOAVAILABILITY OF PAHS IN SEDIMENTS AND SOILS |
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Understanding and predicting any adverse effects of PAHs depends on generating a reliable measure or estimate of how much PAH is available for uptake. Simply knowing the total amou...
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AN UPDATE ON SOME ARSENIC PROJECTS AT THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY |
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ABSTRACT Exposure to arsenic (As) has been reported to cause many adverse health effects in humans, including internal and skin cancers, vascular, neurological and dermal manifest...
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ANALYSIS OF PERFLUORINATED CARBOXYLIC ACIDS IN SOILS II: OPTIMIZATION OF CHROMATOGRAPHY AND EXTRACTION |
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With the objective of detecting and quantitating low concentrations of perfluorinated carboxylic acids (PFCAs), including perfluorinated octanoic acid (PFOA), in soils, we compared...
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ANALYSIS OF PERFLUORINATED CARBOXYLIC ACIDS IN SOILS: DETECTION AND QUANTITATION ISSUES AT LOW CONCENTRATIONS |
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Methods were developed for the extraction from soil, identification, confirmation and quantitation by LC/MS/MS of trace levels of perfluorinated octanoic acid (PFOA), perfluorinate...
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ANALYSIS OF SULFUR IN SOIL, PLANT AND SEDIMENT MATERIALS: SAMPLE HANDLING AND USE OF AN AUTOMATED ANALYZER |
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Methods for analyzing soil, vegetation and sediment samples for total S and handling soil samples for analysis of S constituents were examined. ECO automated total S anelyzer (SC-1...
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ANALYSIS OF WATER AND NAPL SATURATION, DEGRADATION HALF-LIFE, AND LOWER BOUNDARY CONDITIONS ON VOC TRANSPORT MODELING: IMPLICATIONS FOR SOIL VENTING CLOSURE |
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Simulations using a one-dimensional, analytical, vadose zone, solute transport screening code (VFLUX) are conducted to assess the effect of water saturation, NAPL saturation, degra...
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ANALYTICAL MASS SPECTROMETRY OF HERBICIDES |
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Herbicides are chemical substances that are applied to agricultural soils, gardens, lawns, or plants to destroy or to prevent the growth of undesirable vegetation. The herbicides ...
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ANALYZING THE CONSEQUENCES OF ENVIRONMENTAL SPATIAL PATTERNS ON ENVIRONMENTAL RESOURCES: THE USE OF LANDSCAPE METRICS GENERATED FROM REMOTE SENSING DATA |
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A number of existing and new remote sensing data provide images of areas ranging from small communities to continents. These images provide views on a wide range of physical featu...
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ANION MOBILITY IN SOILS: RELEVANCE TO NUTRIENT TRANSPORT FROM TERRESTRIAL TO AQUATIC ECOSYSTEMS |
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Nutrient transport from terrestrial to aquatic ecosystems is strongly mediated by soil chemical interactions. Ions deposited on or biologically released within the soil can enter i...
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ANNUAL AND SEASONAL PRECIPITATION PROBABILITIES |
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The planning, design, and operation of land-based wastewater management systems can be dependent on knowledge of the amount of precipitation which falls during the operating season...
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APPLICATION ANALYSIS REPORT: RETECH PLASMA CENTRIFUGAL FURNACE |
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This document is an evaluation of the performance of the Retech, Inc. Plasma Centrifugal Furnace (PCF) and its applicability as a treatment for soils contaminated with organic and/...
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APPLICATION ANALYSIS REPORT: THE DEHYDRO-TECH CORPORATION CARVER-GREENFIELD PROCESS |
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This report evaluates the Dehydro-Tech Corporation's Carver-Greenfield (C-G) Process and focuses on the technology’s ability to separate waste mixtures into their constituent solid...
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APPLICATION OF FISH AND MICROAUTORADIOGRAPHY TO DETERMINE MICROBIAL COMMUNITY STRUCTURE AND ACTIVITY IN SOIL |
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Fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes is a well established technique for identifying populations of microorganisms at various taxono...
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APPLICATION OF PLANT AND EARTHWORM BIOASSAYS TO EVALUATE REMEDIATION OF A LEAD-CONTAMINATED SOIL |
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Earthworm acute toxicity, plant seed germination/root elongation (SG/RE) and plant genotoxicity bioassays were employed to evaluate the remediation of a lead-contaminated soil. The...
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APPLICATION OF STEAM INJECTION/VACUUM EXTRACTION TREATMENT SYSTEMS TO CONTAMINATED SOILS |
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Steam Injection/Vacuum Extraction (SIVE) is a method to enable vacuum extraction to treat soils contaminated with semivolatile organic compounds (SVOCS) and to speed the cleanup of...
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APPLICATION, PERFORMANCE, AND COSTS OF BIOTREATMENT TECHNOLOGIES FOR CONTAMINATED SOILS |
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A critical review of biological treatment processes for remediation of contaminated soils is presented. The focus of the review is on documented cost and performance of biological...
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APPLICATIONS ANALYSIS REPORT: BABCOCK AND WILCOX CYCLONE FURNACE |
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This document is an evaluation of the performance of the Babcock & Wilcox (B&W) Cyclone Furnace Vitrification Technology and its applicability as a treatment technique for soils co...
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APPLICATIONS ANALYSIS REPORT: RETECH PLASMA CENTRIFUGAL FURNACE |
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This document is an evaluation of the performance of the Retech Inc. Plasma Centrifugal Furnace (PCF) and its applicability as a treatment technique for soils contaminated with org...
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APPLICATIONS ANALYSIS REPORT: TOXIC TREATMENTS, IN-SITU STEAM/HOT-AIR STRIPPING TECHNOLOGY |
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This document is an evaluation of the performance of the Toxic Treatments (USA), Inc., (TTUSA) in situ steam/hot-air stripping technology and its applicability as an on-site treatm...
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APPLICATIONS OF SUPERCRITICAL FLUID TECHNOLOGY TO POLLUTION PREVENTION AND WASTE MINIMIZATION |
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The applications of supercritical fluid extraction (SFE) to environmental problems can yield significant benefits because of the solvent properties and low toxicity of the availabl...
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APPLYING SATELLITE IMAGERY TO TRIAGE ASSESSMENT OF ECOSYSTEM HEALTH |
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Considerable evidence documents that certain changes in vegetation and soils result in irreversibly degraded rangeland ecosystems. We used Advanced Very High Resolution Radiometer ...
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APPROACH TO BIOREMEDIATION OF CONTAMINATED SOIL |
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Biological processes, including microbial degradation, have been identified as critical mechanisms for attenuating organic contaminants during transit through the vadose zone to th...
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APPROACHES FOR REMEDIATION OF UNCONTROLLED WOOD PRESERVING SITES |
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This document provides an overview of remediation of uncontrolled wood preserving sites. It is, in part, a distillation of discussions that took place at a Forum on Wood Preserving...
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APPROACHES FOR REMEDIATION OF UNCONTROLLED WOOD PRESERVING SITES |
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This document provides an overview of remediation of uncontrolled wood preserving sites. It is, in part, a distillation of discussions that took place at a Forum on Wood Preserving...
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APPROACHES TO CHARACTERIZING SOLID PHASE ARSENIC SPECIATION IN SOILS |
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The partitioning of arsenic to soil solids is an important process controlling the stabilization of arsenic wastes and mobility of arsenic in the environment. Identification o...
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ARCTIC CONTAMINANTS RESEARCH PROGRAM: RESEARCH PLAN |
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This research plan was initially intended to contain the information needed to evaluate the U.S. Environmental Protection Agency (EPA) Arctic Contaminant Research Program (ACRP). t...
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ARCTIC FOUNDATIONS, INC. FREEZE BARRIER SYSTEM - SITE TECHNOLOGY CAPSULE |
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Arctic Foundations, Inc. (AFI), of Anchorage, Alaska has developed a freeze barrier technology designed to prevent the migration of contaminants in groundwater by completely isolat...
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ARCTIC FOUNDATIONS, INC. FREEZE BARRIER TECHNOLOGY; INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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Arctic Foundations, Inc. (AFI), of Anchorage, Alaska has developed a freeze barrier technology designed to prevent the migration of contaminants in groundwater by completely isolat...
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ARCTIC VEGETATION AND SOIL DATABASE OF ORGANOCHLORINE PESTICIDES AND PCBS IN ALASKA AND SIBERIA |
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The US EPA Office of Research and Development conducted the Arctic Contaminant Research Program (Landers, D. H. et al. 1992) from 1991 to 1994 through the Corvallis, Oregon, resear...
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ARSENATE REDUCTION BY ORGANIC COMPOUNDS |
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Arsenic is found in a variety of forms and oxidation states depending on soil pH and redox conditions. Under oxic conditions, arsenate is thermodynamically favored but arsenite, t...
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ARSENIC MOBILIZATION BY THE DISSIMILATORY FE(III)-REDUCING BACTERIUM SHEWANELLA ALGA BRY. (R825399) |
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The mobility of arsenic commonly increases as reducing conditions are
established within sediments or flooded soils. Although the reduction of arsenic
increases its solu...
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ARSENIC SOLUBILITY AND ATTENUATION IN SOILS OF THE MADISON RIVER BASIN, MONTANA: IMPACTS OF LONG-TERM IRRIGATION. (R825403) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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ARSENIC SOURCES AND ASSESSMENT |
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Recent research has identified a number of potential and current links between environmental arsenic releases and the management of operational and abandoned landfills. Many landf...
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AS SPECIATION AND EFFECTS OF PH AND PHOSPHATE ON THE MOBILIZATION OF AS IN SOILS FROM A LEAD SMELTING SITE. PUBLISHED IN ADVANCED PHOTON SOURCE ACTIVITY REPORT 2003. |
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Arsenic in soils from the Asarco lead smelter in East Helena, Montana was characterized by X-ray absorption spectroscopy (XAS). Arsenic oxidation state and mineralogy were analyzed...
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ASBESTOS AND RELATED DURABLE FIBERS: TOO UBIQUITOUS, TOO PERSISTENT, TOO COMPLEX TO PUT HEALTH RISKS TO REST? |
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Asbestos was used for centuries before its health risks become publicly known. Health concerns for non-occupational exposures rose at EPA's inception and these concerns quickly e...
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ASEPTIC SAMPLING OF UNCONSOLIDATED HEAVING SOILS IN SATURATED ZONES |
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Collecting undisturbed subsurface soil samples in noncohesive, heaving sandy environments below the water table has been extremely difficult using conventional soil sampling equipm...
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ASPECTS OF SPATIAL AND TEMPORAL AGGREGATION IN ESTIMATING REGIONAL CARBON DIOXIDE FLUXES FROM TEMPERATE FOREST SOILS |
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We examine the influence of aggregation errors on developing estimates of regional soil-CO2 flux from temperate forests. e find daily soil-CO2 fluxes to be more sensitive to change...
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ASSESSING BRAZIL'S CARBON BUDGET: I. BIOTIC CARBON POOLS |
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Brazil contains the world's largest expanse of tropic forest, butits forests are experiencing high levels of conversion to otheruses. here is concern that releases of CO2 and other...
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ASSESSING SOIL ARSENIC BIOAVAILABILITY IN THE LABORATORY MOUSE |
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Variation among soils in the bioavailability of arsenic can be a critical determinant of the risk posed by exposure to these soils. Although in vitro techniques can provide vital ...
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ASSESSING THE BIOAVAILABILITY OF PAHS IN FIELD-CONTAMINATED SEDIMENT USING XAD-2 ASSISTED DESORPTION |
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In the bioremediation of soils/sediments contaminated with polycyclic aromatic hydrocarbons (PAHs) it is imperative to determine the fraction of the PAHs that is amenable to remedi...
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ASSESSING THE ECOLOGICAL CONDITION OF WETLANDS AT THE CATCHMENT SCALE |
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We describe an approach to assessing the ecological condition of two classes of wetlands in the Nanticoke River watershed, a subwatershed in the Chesapeake Bay drainage of North Am...
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ASSESSING THE IMPACT OF LANDUSE/LANDCOVER ON STREAM CHEMISTRY IN MARYLAND |
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Spatial and statistical analyses were conducted to investigate the relationships between stream chemistry (nitrate, sulfate, dissolved organic carbon, etc.), habitat and satellite-...
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ASSESSING THE MOBILITY OF ARSENIC IN CONTAMINATED SEDIMENTS |
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The mobility of arsenic is controlled, in part, by partitioning to mineral surfaces in soils and sediments. Determination of the risk posed to human or ecosystem health by arsenic...
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ASSESSING THE RISKS OF NON-TARGET TERRESTRIAL PLANTS FROM HERBICIDES |
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Use of chemical herbicides to reduce weed competition is a major contributing factor to the high productivity of conventional intensive agricultural cropping systems. However, bec...
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ASSESSING UST CORRECTIVE ACTION TECHNOLOGIES: DIAGNOSTIC EVALUATION OF IN SITU SVE-BASED SYSTEM PERFORMANCE |
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In situ corrective action technologies are being proposed and installed at an increasing number of underground storage tank (LIST) sites contaminated with petroleum products in sat...
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ASSESSMENT OF A SEQUENTIAL EXTRACTION PROCEDURE FOR PERTURBED LEAD-CONTAMINATED SAMPLES WITH AND WITHOUT PHOSPHOROUS AMENDMENTS |
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Sequential extraction procedures are used to determine the solid-phase association in which elements of interest exist in soil and sediment matrices. Foundational work by Tessier ...
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ASSESSMENT OF ALTERNATIVE MANAGEMENT PRACTICES AND POLICIES AFFECTING SOIL CARBON IN AGROECOSYSTEMS OF THE CENTRAL UNITED STATES |
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The goal of the U.S. EPA BIOME Agroecosystems Assessment Project is to evaluate the degree to which agroecosystems can be technically managed, on a sustainable basis, to conserve a...
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ASSESSMENT OF MUTAGENIC POTENTIAL OF MIXTURES OF ORGANIC SUBSTANCES IN RENOVATED WATER |
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An investigation was undertaken to evaluate the performance of several advanced wastewater treatment plants having biological, physical chemical, or soils treatment systems for rem...
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ASSOCIATION OF LANDSCAPE METRICS TO SURFACE WATER BIOLOGY IN THE SAVANNAH RIVER BASIN |
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Surface water quality for the Savannah River basin was assessed using water biology and landscape metrics. Two multivariate analyses, partial least square and cannonical correlati...
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ATMOSPHERIC BENZENE DEPLETION BY SOIL MICROORGANISMS |
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Gaseous benzene was rapidly depleted in exposure chambers containing viable soils and plants. When separate components of the system were analyzed, no benzene was detected in soils...
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ATMOSPHERIC FORMALDEHYDE AND THE POTENTIAL FOR PLANT EFFECTS |
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According to the Spatial Multimedia Compartmental Model (SMCM) predictions, elevated atmospheric formaldehyde concentrations may occur as a result of switching from conventional fu...
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ATRAZINE DESORPTION KINETICS FROM A FRESH-WATER SEDIMENT |
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Research has shown that the sorption and desorption of neutral organic compounds to soils and sediments occurs in two stages, with an initial rapid sorption/desorption phase (usual...
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ATTENUATION OF POLYBROMINATED BIPHENYLS AND HEXACHLOROBENZENE BY EARTH MATERIALS |
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The aqueous solubility, adsorption, mobility, and microbial degradation of polybrominate biphenyls (PBBs) and hexachlorobenzene (HCB) were studied under laboratory conditions. Stud...
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AUTOMATED GEOSPATIAL WATERSHED ASSESSMENT (AGWA) DOCUMENTATION VERSION 2.0 |
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The Automated Geospatial Watershed Assessment Http://www.epa.gov/nerlesd1/landsci/agwa/introduction.htm and www.tucson.ars.ag.gov/agwa) tool is a GIS interface jointly
developed b...
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AUTOMATED GEOSPATIAL WATERSHED ASSESSMENT (AGWA): A GIS-BASED HYDROLOGICAL MODELING TOOL FOR WATERSHED MANAGEMENT AND LANDSCAPE ASSESSMENT |
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The Automated Geospatial Watershed Assessment (http://www.epa.gov/nerlesd1/land-sci/agwa/introduction.htm and www.tucson.ars.ag.gov/agwa) tool is a GIS interface jointly developed ...
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AUTOMATED GEOSPATIAL WATERSHED ASSESSMENT (AGWA): A GIS-BASED HYRDOLOGIC MODELING TOOL FOR WATERSHED ASSESSMENT AND ANALYSIS |
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The Automated Geospatial Watershed Assessment tool (AGWA) is a GIS interface jointly
developed by the USDA Agricultural Research Service, the U.S. Environmental Protection |
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AUTOMATED GEOSPATICAL WATERSHED ASSESSMENT (AGWA): A GIS-BASED HYDROLOICAL MODELING TOOL FOR WATERSHED ASSESSMENT AND ANALYSIS |
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The Automated Geospatial Watershed Assessment tool (AGWA) is a GIS interface jointly developed by the USDA Agricultural Research Service, the U.S. Environmental Protection Agency, ...
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AVAILABILITY OF CADMIUM TO RATS FROM CROPS GROWN ON CADMIUM ENRICHED SOIL |
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The research was initiated to enhance the authors understanding of the availability to animals of Cd present in edible plants. Such information is of considerable importance since ...
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Application Of Synchrotron Techniques To Investigate In-Situ Arsenic Speciation |
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The speciation, or chemical form of elements governs their fate, toxicity, mobility, and bioavailability in contaminated soils, sediments and water as well as food chain transfer m...
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Application of Synchrotron Techniques in Environmental Science |
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The complexity of metal contaminated sites has and continues to be simplified to a measure of the total metal content. While total metal content is a critical measure in assessing ...
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Are there prospects for enhanced groundwater recharge via infiltration of urban stormwater runoff? |
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This presentation will cover the basics of what a storm water best management practices and focus on infiltration-type practices using the example of rain gardens. I will demonstra...
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Augmented In Situ Subsurface Bioremediation Process™BIO-REM, Inc. - Demonstration Bulletin |
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The Augmented In Situ Subsurface Bioremediation Process™ developed by BIO-REM, Inc., uses microaerophilic bacteria and micronutrients (H-10) and surface tension depressants/penetra...
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BACTERIAL TRANSPORT THROUGH HOMOGENOUS SOIL |
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The transport of microorganisms in soils is of major importance for bioremediation of subsurface polluted zones and for pollution of groundwater with pathogens. A procedure for eva...
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BEHAVIOR OF METALS IN SOILS |
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Metals added to soil will normally be retained at the soil surface. ovement of metals into other environmental compartments, i.e. groundwater, surface water, or the atmosphere, sho...
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BEHAVIOR OF METALS IN SOILS (EPA/540/S-92/018) |
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For the purposes of this issue Paper, those metals most commonly found at Superfund sites will be discussed in terms of the processes affecting their behavior in soils as well as l...
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BEHAVIOR OF ORGANIC POLLUTANTS DURING RAPID-INFILTRATION OF WASTEWATER INTO SOIL: 2. MATHEMATICAL DESCRIPTION OF TRANSPORT AND TRANSFORMATION |
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A compartmental screening model was developed to describe the movement of volatile and transformable organic chemicals in rapid-infiltration wastewater treatment systems. The first...
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BEHAVIOR OF TOLUENE ADDED TO SLUDGE-AMENDED SOILS |
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Toluene is a priority pollutant that can be introduced to soils in a variety of wastes, including some municipal sludges. aboratory experiments were conducted to study the behavior...
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BEHAVIOR OF TOLUENE ADDED TO SLUDGE-AMENDED SOILS |
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Toluene is a priority pollutant that can be introduced to soils in a variety of wastes, including some municipal sludges. Laboratory experiments were conducted to study the behavi...
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BENCH SCALE FIXATION OF SOILS FROM THE TACOMA TAR PITS SUPRFUND SITE |
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This report documents the results of bench-scale soil fixation study conducted with materials from the Tacoma Tar Pits SuperfundSite. Chemical fixation (also called stabilization/s...
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BERGMAN USA SOIL SEDIMENT WASHING TECHNOLOGY - APPLICATIONS ANALYSIS REPORT |
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This document provides an evaluation of the performance of the Bergmann USA Soil/Sediment Washing System and its applicability for the treatment of soils or sediments contaminated ...
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BERGMANN USA SOIL SEDIMENT WASHING TECHNOLOGY - APPLICATIONS ANALYSIS REPORT |
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This document provides an evaluation of the performance of the Bergmann USA Soil/Sediment Washing System and its applicability for the treatment of soils or sediments contaminated ...
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BIOASSAY-DIRECTED FRACTIONATION AND CHEMICAL IDENTIFICATION OF MUTAGENS IN BIOREMEDIATED SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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BIOAVAILABILITY AND TOXICITY OF METALS IN SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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BIOAVAILABILITY OF AGED COAL TAR CONTAMINATED SOILS IN FISCHER 344 RATS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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BIOAVAILABILITY OF ARSENIC IN CATTLE DIPPING VAT SITE SOILS AS A FUNCTION OF SOIL CHEMISTRY. (R830842) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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BIOAVAILABILITY OF ARSENIC, CHROMIUM, AND COPPER FOR CCA CONTAMINATED SOILS AND DUST |
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It is estimated that 70% of single family homes have pressure-treated wood decks or porches and 14% of playground equipment uses pressure-treated wood. This popular form of wood c...
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BIOAVAILABILITY OF ARSENIC, CHROMIUM, AND COPPER FROM CCA CONTAMINATED SOILS AND DUSTS |
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It is estimated that 70% of single family homes have pressure-treated wood decks or porches and 14% of playground equipment uses pressure-treated wood. This popular form of wood c...
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BIOAVAILABILITY OF METALS IN CONTAMINATED SOIL AND DUST |
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Due to widespread metal contamination, it is necessary to characterize soils suspected of metal contamination and determine if the metal levels in these soils pose a hazard. Met...
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BIOAVAILABILITY OF METALS IN ENVIRONMENTAL MEDIA |
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Heavy metal and organic chemical contamination of soils is a worldwide problem posing a risk to humans and more directly, soil organisms. Due to widespread metal contamination, ...
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BIOAVAILABILITY OF THE GENOTOXIC COMPONENTS IN COAL TAR CONTAMINATED SOILS IN FISCHER 344 RATS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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BIOAVAILABILITY OF THE GENOTOXIC COMPONENTS IN COAL TAR CONTAMINATED SOILS IN FISCHER 344 RATS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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BIOAVAILABILITY OF THE GENOTOXIC COMPONENTS IN COAL TAR CONTAMINATED SOILS IN FISCHER 344 RATS. (R825408) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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BIOAVAILABILITY TO PLANTS OF SLUDGE-BORNE TOXIC ORGANICS |
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Large numbers of man-made organic chemicals occur in sewage sludge and many are thought to represent an environmental hazard. his is particularly true of the compounds classified a...
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BIODEGRADATION OF NAPHTHALENE-CONTAMINATED SOILS IN SLURRY BIOREACTORS. (R826694C625) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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BIODEGRADATION OF SIMPLE CHEMICAL MIXTURES IN SOILS |
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Exogenous cultures of microorganisms are often utilized to enhance bioremediation. The purpose of this study was to compare the capabilities of two exogenous microbial cultures, Ps...
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BIOGENESIS SOIL WASHING TECHNOLOGY - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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Soil washing technologies are designed to transfer contaminants from soil to a liquid phase. he BioGenesis Soil Washing Technology uses soil washing with a proprietary surfactant s...
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BIOGENIC NITRIC OXIDE EMISSIONS FROM CROPLAND SOILS |
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Emissions of nitric oxide (NO) were determined during late spring and summer 1995 and the spring of 1996 from four agricultural soils on which four different crops were grown. Thes...
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BIOLOGICAL ASSESSMENT OF TOXICITY CAUSED BY CHEMICAL CONSTITUENTS ELUTED FROM SITE SOILS COLLECTED AT THE DRAKE CHEMICAL SUPERFUND SITE |
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The site was used to manufactured specialty intermediate chemicals for the producers of dyes, pharmaceuticals, cosmetics, herbicides, and pesticides. he herbicide Fenac (2,3,6-tric...
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BIOLOGICAL SINKS FOR N ADDITIONS TO A FORESTED CATCHMENT |
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The goal of our research is to identify and quantify sinks for experimental Nitrogen (N) additions to a forested catchment at the Bear Brooks Watershed in Maine (BBWM) where backgr...
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BIOMETHYLATION AND ENVIRONMENTAL TRANSPORT OF METALS |
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Toxic heavy metals are ubiquitous in the environment. They are found as metal or oxide dust in air, metal ions attached to humic substances in surface and ground water, and as meta...
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BIONETS (THREE STACKED HYDRAULIC FRACTURES) CONTAINING SOLID OXYGEN SOURCE (SOS), ISOLITE (FIRED DIATOMACIOUS EARTH) AND BACTERIAL STRAIN PM1 TO STIMULATE IN SITU BIOREMEDIATION OF MTBE AND BTEX IN SOILS AND GROUNDWATER |
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Collaboration with Office of Research and Development, Region 8, Foremost Solutions, University of California, and Native American Flathead Tribe lead to the development and demons...
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BIOREMEDIATION OF HAZARDOUS WASTE SITES: PRACTICAL APPROACHES TO IMPLEMENTATION (EPA/625/K-96/001) |
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This document contains abstracts and slide hardcopy for the U.S. Environmental Protection Agency's (EPA's) "Seminar Series on Bioremediation of Hazardous Waste Sites: Practical App...
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BIOREMEDIATION TREATABILITY STUDIES OF CONTAMINATED SOILS AT WOOD PRESERVING SITES |
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Bioremediationis used frequently at sites contaminated with organic hazardous chemical where releases from processing vessels and the mismanagement of reagents and generated waste ...
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BIOSORPTION OF DICHLORODIPHENYLTRICHLOROETHANE AND HEXACHLOROBENZENE IN GROUNDWATER AND ITS IMPLICATIONS FOR FACILITATED TRANSPORT |
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The potential for enhanced mobility of hydrophobic pollutants by cotransport with bacteria in saturated soils was evaluated from measurements of biosorption of "C-labeled hexachlor...
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BIOSORPTION OF HYDROPHOBIC ORGANIC POLLUTANTS BY MIXED MICROBIAL POPULATIONS |
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In recognition of the need to estimate biosorption for natural microbial populations, the variability of partition coefficients for two hydrophobic pollutants to natural population...
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BIOSURFACES AND BIOAVAILABILITY: A NANOSCALE OVERVIEW |
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Environmentally, contaminant bioavailability is a key parameter in determining exposure assessment and ultimately risk assessment/risk management. Defining bioavailability require...
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BIOSURFACES: A NONSCALE OVERVIEW |
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Biosurfaces: A Nanoscale Overview.
Environmental surfaces (mineral, organic, biological, and composite) determine the physicochemical and biological properties of soils and cont...
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BIOTROL SOIL WASHING SYSTEM FOR TREATMENT OF A WOOD PRESERVING SITE - APPLICATIONS ANALYSIS REPORT |
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The report analyzes the results of the SITE Program demonstration of BioTrol's Soil Washing System at the MacGillis & Gibbs wood treatment facility in New Brighton, MN. The contami...
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BIOTROL SOIL WASHING SYSTEM FOR TREATMENT OF A WOOD PRESERVING SITE APPLICATIONS ANALYSIS REPORT |
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This report analyzes the results of the SITE Program demonstration of BioTrol's Soil Washing System at the MacGillis & Gibbs wood treatment facility in New Brighton, MN. he contami...
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BORON RELEASE FROM WEATHERING ILLITES, SERPENTINE, SHALES, AND ILLITIC/PALYGORSKITIC SOILS |
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Despite extensive research on B adsorption and release from soils, mineral sources of B within natively high B soils remain poorly under- stood. The objectives of this study were t...
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BTEX AND MTBE BIOREMEDIATION: BIONETS™ CONTAINING SOS, PM1 AND ISOLITE® |
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MTBE and BTEX (benzene, toluene, ethylbenzene, and xylenes) are major problems of many sites in the United States. The objective of this study was to determine if biologically acti...
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Bioretention Monitoring: Designing Rain Gardens to Promote Nitrate Removal |
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Laboratory and field-scale studies of bioretention systems have often shown these structures to have a high capacity for removal of suspended solids, heavy metals, and phosphorus. ...
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CADMIUM EFFECTS ON THE NITROGEN FIXATION SYSTEM OF RED ALDER |
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Red alder (Alnus rubra) was grown in sand culture in the greenhouse to obtain data on the effects of cadmium (Cd) on a symbiotic nitrogen (N) fixation system which contributes to t...
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CADMIUM SULFATE APPLICATION TO SLUDGE-AMENDED SOILS. 1. EFFECT ON YIELD AND CADMIUM AVAILABILITY TO PLANTS |
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Twelve paired soils (only one of each pair having a history of sludge application) with pH values ranging from 3.9 to 7.4 were amended with CdSO4 in a growth chamber experiment. Th...
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CAPSULE REPORT: ACOUSTIC MONITORING TO DETERMINE THE INTEGRITY OF HAZARDOUS WASTE DAMS |
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Acoustic emission monitoring is a technique used to monitor the stability of earthen impoundments of hazardous wastes. his system is based on the phenomenon that soils emit sounds ...
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CAPTURE-AND-CONTAINMENT SYSTEMS FOR HAZARDOUS MATERIAL SPILLS ON LAND |
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This report covers the investigation of methods for sealing the surface of soils and preventing the percolation of spilled hazardous materials into the ground. The objective was to...
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CARBON BALANCE OF THE CONTINUOUS PERMAFROST ZONE OF RUSSIA |
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An increase in the atmospheric concentration of CO2 is projected to cause climate warming. arming of the permafrost environment could change the balance between carbon accumulation...
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CARBON MONOXIDE FLUXES OF DIFFERENT SOIL LAYERS IN UPLAND CANADIAN BOREAL FORESTS |
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Dark or low-light carbon monoxide fluxes at upland Canadian boreal forest sites were measured on-site with static chambers and with a laboratory incubation technique using cores fr...
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CARBON POOL AND FLUX OF GLOBAL FOREST ECOSYSTEMS |
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Forest systems cover more than 4.1 x 10 9 hectares of the Earth's land area. lobally, forest vegetation and soils contain about 1146 petagrams of carbon, with approximately 37 perc...
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CARBON SEQUESTRATION IN SOILS AND GLOBAL CLIMATIC CHANGE |
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The storage of carbon in soils is a very complex phenomenon. lthough it is not fully characterized or understood, steps can be taken to use soils as a reservoir of carbon. he role ...
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CARBON TRADING AND FOREST SEQUESTRATION: CAN FORESTS LIVE UP TO THE BILLING? |
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A growing number of public officials, scientists, and members of the public and private sector suggest that the effects of climate change could affect the environment and economy o...
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CART DIAGNOSIS OF WATERSHED IMPAIRMENT IN THE MID-ATLANTIC REGION |
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Many factors ( stressors ) can lead to increased concentrations of nutrients and sediments, and these factors change across watersheds. Classification and Regression Tree (CART) is...
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CATALYTIC DECHLORINATION OF 2-CL BP IN SEDIMENTS AND WATER-SOLVENT SYSTEMS BY FE/PD BIMETAL |
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Polychlorinated biphenyls (PCBs) are one group of persistent organic pollutants (POPs) of international concern because of global distribution, persistence, and toxicity. Removal o...
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CATION TRANSPORT AND PARTITIONING DURING A FIELD TEST OF ELECTROOSMOSIS |
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Field experiments were conducted to evaluate the effects of soil properties, such as the cation exchange capacity and mineral content, on pH, soluble ion concentrations, and electr...
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CD SPECIATION ASSOCIATED WITH IRON OXIDES AND BIOSOLIDS |
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The environmental impact and potential hazards of metals in biosolids to plants, animals and the human food chain have been studied for decades. From this body of work, it has been...
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CHANGES IN MASS AND CHEMISTRY OF PLANT ROOTS DURING LONG-TERM DECOMPOSITION ON A CHIHUAHUAN DESERT WATERSHED |
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We studied the spatial and temporal patterns of decomposition of roots of a desert sub-shrub, a herbaceous annual, and four species of perennial grasses at several locations on nit...
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CHAPTER 17: VIVANTARY RESPONSIBLITY AND EMERGY ACCOUNTING |
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Ecosystem processes represented by manifold material cycles and energy flows are a necessary condition of life on Earth. Though our species is embedded in a matrix of ecosystem pr...
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CHARACTERISTICS OF FLORIDA FILL MATERIALS AND SOILS - 1990 |
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The report gives results of laboratory work by the University of Florida in support of the Foundation Fill Data Base project of the Foundation Fill Materials Specifications Task Ar...
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CHARACTERISTICS OF FLORIDA FILL MATERIALS AND SOILS 1990 |
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The report gives results of laboratory work by the University of Florida in support of the Foundation Fill Data Base project of the Foundation Fill Materials Specifications Task Ar...
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CHARACTERIZATION AND EH/PH-BASED LEACHING TESTS OF MERCURY-CONTAINING MINING WASTES FROM THE SULFUR BANK MERCURY MINE, LAKE COUNTY, CALIFORNIA |
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Clear Lake in northern California has received inputs of mercury (Hg) mining wastes from the Sulfur Bank Mercury Mine (SBMM). About 1.2 million tons of Hg-contaminated overburden a...
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CHARACTERIZATION AND IN-SITU REMEDIATION OF CHROMIUM-CONTAMINATED SOILS AND SEDIMENTS AT THE USCG SUPPORT CENTER, ELIZABETH CITY, NC |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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CHARACTERIZATION AND LABORATORY SOIL TREATABILITY STUDIES FOR CREOSOTE AND PENTACHLOROPHENOL SLUDGES AND CONTAMINATED SOIL |
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Information is presented from characterization and laboratory treatability phases of a 3-phase study pertaining to on-site treatability potential of soils containing hazardous cons...
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CHARACTERIZATION AND PREDICTION OF NUTRIENTS AND PESTICIDES IN BASE FLOW CONDITIONS OF FIRST ORDER STREAMS IN THE MID-ATLANTIC COASTAL PLAIN-A COLLABORATIVE EFFORT |
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The Landscape Indicators for Pesticides Study in Mid-Atlantic Coastal Streams (LIPS-MACS) is a collaborative research effort between the U.S. Environmental Protection Agency's Offi...
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CHARACTERIZATION OF CHEMICAL WASTE SITE CONTAMINATION AND DETERMINATION OF ITS EXTENT USING BIOASSAYS |
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The purpose of using bioassays to evaluate soils, soil elutriates, and surface and subsurface water from hazardous chemical waste sites is to provide a more direct, integrated esti...
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CHARACTERIZATION OF CHROMIUM-CONTAMINATED SOILS USING FIELD-PORTABLE X-RAY FLUORESCENCE |
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Metals contamination of subsurface soils and ground water from a variety of industrial sources and uses has increasingly been discovered over the past decade. trategies are needed ...
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CHARACTERIZATION OF EASTERN U.S. SPRUCE-FIR SOILS |
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he spruce-fir forest of the eastern United States encompasses a diverse range of edaphic conditions due to differences in surficial geology, mineralogy, elevation, and climate. his...
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CHARACTERIZATION OF MERCURY CONTAMINATION AT THE EAST FORK POPLAR CREEK SITE, OAK RIDGE, TENNESSEE: A CASE STUDY |
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Historic accidental release of mercury-contaminated material associated with nuclear weapons production at East Fork Poplar Creek (EFPC) resulted in stream and floodplain contamina...
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CHARACTERIZATION OF PB2+ UPTAKE AND SEQUESTRATION IN PSEUDOMONAS AERUGINOSA CHL004 |
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In laboratory studies, the soil isolate Pseudomonas aeruginosa CHL004 (Vesper et al 1996) has been found to concentrated Pb2+ in the cytoplasm by formation of particles that contai...
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CHARACTERIZATION OF PB2+ UPTAKE AND SEQUESTRATION IN PSEUDOMONAS AERUGINOSA, CHL004, LEAD |
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In laboratory studies, the soil isolate Pseudomonas aeruginosa CHL004 has been found to concentrate Pb2+ in the cytoplasm by formation of particles that contain Pb2+ and phosphorus...
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CHARACTERIZATION OF SEWAGE SLUDGE AND SEWAGE SLUDGE-SOIL SYSTEMS |
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Field and laboratory studies were conducted to characterize the chemical properties of municipal sewage sludges, to evaluate the fate of sludge components in soils, and to determin...
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CHARACTERIZING SOILS FOR HAZARDOUS WASTE SITE ASSESSMENTS |
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This paper provides a review and justification of the minimum data needed to characterize soils for hazardous waste site assessments and to comply with the Comprehensive Environmen...
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CHARACTERIZING SOILS FOR HAZARDOUS WASTE SITE ASSESSMENTS (EPA/540/4-91/003) |
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The purpose of this paper is to provide guidance to Remedial Project Managers (RPM) and On-Scene Coordinators (OSC) concerning soil characterization data types required for decisio...
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CHARACTERIZING SOILS FOR HAZAROUDS WASTE SITE ASSESSMENTS |
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The purpose of this paper is to provide guidance to Remedial
Project Managers (RPM) and On-Scene Coordinators (OSC)
ooncerning soil characterization data types required for |
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CHARACTERIZING SPATIAL AND TEMPORAL DYNAMICS: DEVELOPMENT OF A GRID-BASED WATERSHED MERCURY LOADING MODEL |
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A distributed grid-based watershed mercury loading model has been developed to characterize spatial and temporal dynamics of mercury from both point and non-point sources. The mode...
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CHARACTERIZING THE UNCERTAINTY OF PESTICIDE LEACHING IN AGRICULTURAL SOILS |
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A Monte-Carlo numerical simulation procedure for making regional assessments of pesticide leaching has been developed. The procedure uses probability density functions for organic ...
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CHEMFLO: ONE-DIMENSIONAL WATER AND CHEMICAL MOVEMENT IN UNSATURATED SOILS |
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An interactive software system was developed to enable decision-makers, regulators, policy-makers, scientists, consultants, and students to simulate the movement of waterand chemic...
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CHEMFLO: ONE-DIMENSIONAL WATER AND CHEMICAL MOVEMENT IN UNSATURATED SOILS. Project Summary |
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This user's guide serves the purpose of instructing the user in the execution of a software package CHEMFLO for simulating water and chemical movement in unsaturated soils. The gui...
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CHEMICAL AND BIOLOGICAL CHARACTERIZATION OF LEACHATES FROM COAL SOLID WASTES |
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The report gives results of the chemical and mineralogical characterization of coal solid wastes. The wastes included three Lurgi gasification ashes, mineral residues from the SRC-...
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CHEMICAL AND MICROBIAL ASPECTS OF SLUDGE COMPOSTING AND LAND APPLICATION |
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A series of six studies was conducted to evaluate selected microbial and chemical aspects of composting and sludge spreading. Ammonia (NH3 was shown to be viricidal at pH 7 to 9). ...
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CHEMICAL AND PHYSICAL EFFECTS OF MUNICIPAL LANDFILLS ON UNDERLYING SOILS AND GROUNDWATER |
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Three municipal landfill sites in the eastern and central United States were studied to determine the effects of the disposal facilities on surrounding soils and groundwater. Borin...
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CHEMICAL CHARACTERISTICS AND TEMPORAL TRENDS IN EIGHT STREAMS OF THE CATSKILL MOUNTAINS, NEW YORK |
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Discharge-concentration relations in eight streams studied by the U.S. Geological Survey as part of the U.S. EPA Long-Term Monitoring Project (1983 - 1989) indicate acidification o...
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CHEMICAL INTERACTIONS OF ARSENATE, ARSENITE, PHOSPHATE, AND SILICATE WITH IRON (II, III) HYDROXYCARBONATE GREEN RUST |
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Granular zerovalent iron has been proposed to be used as a medium in permeable reactive barriers (PRBs) to remove arsenic from contaminated groundwater. Iron(II, III) hydroxycarbon...
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CHEMICAL INTERACTIONS OF ARSENATE, ARSENITE, PHOSPHATE, AND SILICATE WITH IRON (II, III) HYDROXYCARBONATE GREEN RUST |
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Granular zerovalent iron has been proposed to be used as a medium in permeable reactive barriers (PRBs) to remove arsenic from contaminated groundwater. Iron(II, III) hydroxycarbon...
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CHEMICAL INTERACTIONS OF ARSENATE, ARSENITE, PHOSPHATE, AND SILICATE WITH IRON (II,III) HYDROXYCARBONATE GREEN RUST |
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Granular zerovalent iron has been proposed to be used as a medium in permeable reactive barriers (PRBs) to remove arsenic from contaminated groundwater. Iron(II, III) hydroxycarbon...
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CHEMICAL STABILIZATION OF MIXED ORGANIC AND METAL COMPOUNDS - EPA SITE PROGRAM DEMONSTRATION OF THE SILICATE TECHNOLOGY CORPORATION PROCESS |
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In November 1990, the Silicate Technology Corporation's (STC) proprietary process for treating soil contaminated with toxic semi-volatile organic and inorganic contaminants was eva...
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CHEMICAL TRANSPORT FACILITATED BY COLLOIDAL-SIZED ORGANIC MOLECULES |
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The fluid passing through the pores of soils and geologic materials is not just water with dissolved inorganic chemicals, but a complex mixture of organic and inorganic molecules. ...
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CHEMICAL WEATHERING AND SOLUTION CHEMISTRY IN ACID FOREST SOILS: DIFFERENTIAL INFLUENCE OF SOIL TYPE, BIOTIC PROCESSES, AND H+ DEPOSITION |
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In the investigation, weathering rates were calculated for three eastern North American forest soils using five separate estimation techniques. In addition, leaching experiments we...
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CHLORDANES IN THE MID-ATLANTIC ATMOSPHERE: NEW JERSEY 1997-1999 |
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To characterize the atmospheric dynamics and behavior of chlordane compounds in the mid-Atlantic region of the United States, atmospheric concentrations were measured in 1997-199...
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CHLORINATED SOLVENT CONTAMINATED SOILS AND GROUNDWATER: FIELD APPLICATION OF THE SOLVENT EXTRACTION RESIDUAL BIOTREATMENT TECHNOLOGY |
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A pilot scale demonstration of the Solvent Extraction Residual Biotreatment (SERB) technology was conducted at the former Sage's Dry Cleaner site in Jacksonville, FL. The SERB tec...
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CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) SOURCE CHARACTERIZATION IN THE LOUISIANA BIGHT |
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Chromophoric dissolved organic matter (CDOM) in the Mississippi plume region may have several distinct sources: riverine (terrestrial soils), wetland (terrestrial plants), biologic...
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CHRONIC EFFECTS OF CONTAMINATED SEDIMENT ON 'DAPHNIA MAGNA' AND 'CHIRONOMUS TENTANS' (JOURNAL VERSION) |
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Chronic tests were conducted with Daphnia magna (cladoceran) and Chironomus tentans (midge) to determine their usefulness as test organisms for chronic sediment assays, and to esti...
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CLASSIFICATION OF COAL SURFACE MINE SOIL MATERIAL FOR VEGETATION MANAGEMENT AND SOIL WATER QUALITY |
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An Alabama minesoil classification system was developed based on soil texture, soil color value and soil pH. Only five different soil classes were found in this study. However, the...
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CLASSIFYING SOILS FOR ACIDIC DEPOSITION AQUATIC EFFECTS: A SCHEME FOR THE NORTHEAST USA |
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The Direct/Delayed Response Project (DDRP) is estimating the number of lakes and streams in three U.S. regions that might become acidic due to current or altered levels of acidic d...
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CLAY LINER CONSTRUCTION AND QUALITY CONTROL |
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Soil handling and liner construction practices at hazardous waste management facilities are documented. Soil characterizations, processing techniques, construction methods, and qua...
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CLAY MINERALS AND THE ACCUMULATION OF SOIL ORGANIC MATTER IN NORTHWESTERN U.S. FORESTS |
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Globally soils are an important terrestrial reservoir of carbon, storing approximately 3 times the carbon held in vegetation and 2 times the amount contained in the atmosphere. Wi...
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CLEANING EXCAVATED SOIL USING EXTRACTION AGENTS: A STATE-OF-THE-ART REVIEW |
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This report presents a state-of-the-art review of soil washing technologies and their applicability to Superfund sites in the United States. The review includes Superfund site soil...
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CLEANING UP PESTICIDE CONTAMINATED SOILS: COMPARING EFFECTIVENESS OF SUPERCRITICAL FLUID EXTRACTION WITH SOLVENT EXTRACTION AND LOW TEMPERATURE THERMAL DESORPTION |
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Bench-scale supercritical fluid extraction (SFE) studies were performed on soil samples obtained from a Superfund site that is contaminated with high levels of p,p,-DDT, p,p,-DDD, ...
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CLIMATE WARMING AND THE CARBON CYCLE IN THE PERMAFROST ZONE OF THE FORMER SOVIET UNION |
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The continuous permafrost zone of the former Soviet Union occupies 5% of the land surface area of the earth and stores a significant amount of carbon. limate warming could disrupt ...
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CLOSURE OF A DIOXIN INCINERATION FACILITY |
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The U.S. Environmental Protection Agency Mobile Incineration System, which was operated at the Denney Farm site in southwestern Missouri between October 1985 and June 1989, treated...
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CO-DEVELOPMENT OF WETLANDS SOILS AND BENTHIC INVERTEBRATE COMMUNITIES FOLLOWING SALT MARSH CREATION. (R826111) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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COGNIS TERRAMET® LEAD EXTRACTION PROCESS; INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report documents an evaluation of lead removal from sands and fines fractions of contaminated soils by the COGNIS TERRAMET® lead extraction process (COGNIS process). The eval...
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COLD CLIMATE OIL SPILLS: A TERRESTRIAL AND FRESHWATER RESEARCH REVIEW |
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The first part of this study reviews world-wide research on cold climate oil spills on land to identify some of the terrestrial environmental factors in cold regions affected by oi...
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COLLABORATIVE RESEARCH: IN SITU MITIGATION OF MERCURY CONTAMINATED GROUNDWATER IN KAZAKHSTAN |
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Abstract for EPA Science Forum.
The EPA Office of International Affairs is managing a U.S. State Department -funded project to redirect former Soviet Union biological weapon...
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COLLABORATIVE RESEARCH: IN-SITU MITIGATION OF MERCURY CONTAMINATED GROUNDWATER IN KAZAKHSTAN |
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The U.S. Environmental Protection Agency (U.S. EPA) OIA receives funding from the U.S. State Department's Bio-Chem Redirect program to engage former Soviet biological and chemical ...
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COLUMN EXPERIMENTS AND ANOMALOUS CONDUCTIVITY IN HYDROCARBON-IMPACTED SOILS |
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A laboratory experiment was designed to increase the understanding of the geoelectric effects of microbial " degradation of hydrocarbons. Eight large columns were were paired to pr...
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COLUMN VAPOR EXTRACTION EXPERIMENTS ON GASOLINE CONTAMINATED SOIL |
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Soil vapor extraction (SVE) is a technique that is used to remove volatile organic compounds from unsaturated soils. ir is pumped from the contaminated area and the chemicals are r...
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COMBINED CHEMICAL AND BIOLOGICAL OXIDATION OF SLURRY PHASE POLYCYCLIC AROMATIC HYDROCARBONS |
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Bioslurry treatment of polycyclic aromatic hydrocarbon (PAH)-impacted soils was demonstrated under the Superfund Innovative Technologies Evaluation (SITE)/Emerging Technologies Pro...
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COMMENTS ON 'SCALE FACTORS IN SOIL SCIENCE' |
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Tillotson and Nielsen (1984) made a useful contribution by emphasizing that the method of 'functional normalization' is unrelated to similarity principles, and scale factors obtain...
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COMPARATIVE EVALUATION OF MTBE SITES ON LONG ISLAND |
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The aquifers of Long Island serve as the sole-source drinking water supply for approximately 3 million people. About 20 percent of this population obtains drinking water directly f...
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COMPARING POLYCHLORINATED BIPHENYLS IN FARM-RAISED AND WILD-CAUGHT CATFISH FROM SOUTHERN MISSISSIPPI |
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Polychlorinated biphenyls (PCBs) are among the most thermally stable organic chemicals known. This characteristic has historically made them useful in a wide array of applications...
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COMPARING THE SOLID PHASE AND SALINE EXTRACT MICROTOX(R) ASSAYS FOR TWO PAH CONTAMINATED SOILS |
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The performance of remedial treatments is typically evaluated by measuring the concentration of specific chemicals. By adding toxicity bioassays to treatment evaluations, a fulle...
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COMPARISON OF BIOASSAY AND ENZYME-LINKED IMMUNOSORBENT ASSAY FOR QUANTIFICATION OF 'SPODOPTERA FRUGIPERDA' NUCLEAR POLYHEDROSIS VIRUS IN SOIL |
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Standard curves with known amounts of Spodoptera frugiperda nuclear polyhedrosis virus (NPV) in soil were established with a bioassay and with an enzyme-linked immunosorbent assay ...
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COMPARISON OF CREATED AND NATURAL FRESHWATER EMERGENT WETLANDS IN CONNECTICUT |
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Five three- to four-year old created palustrine/emergent wetland sites were compared with five nearby natural wetlands of comparable size and type. ydrologic, soil and vegetation d...
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COMPARISON OF FIELD AEROBIC BIODEGRADATION RATES TO LABORATORY |
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It is common to use bioventing as a polishing step for soil vapor extraction. It was originally planned to use soil vapor extraction and bioventing at a former landfill site in Del...
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COMPARISON OF FIELD AEROBIC BIODEGRADATION RATES TO LABORATORY |
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It is common to use bioventing as a polishing step for soil vapor extraction. It was originally planned to use soil vapor extraction and bioventing at a former landfill site in Del...
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COMPARISON OF GEOPROBE PRT AND AMS GVP SOIL-GAS SAMPLING SYSTEMS WITH DEDICATED VAPOR PROBES IN SANDY SOILS AT THE RAYMARK SUPERFUND SITE |
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A study was conducted near the Raymark Superfund Site in Stratford, Connecticut to compare results of soil-gas sampling using dedicated vapor probes, a truck-mounted direct-push te...
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COMPARISON OF HYDROLOGY OF WETLANDS IN PENNSYLVANIA AND OREGON AS AN INDICATOR OF TRANSFERABILITY OF HYDROGEOMORPHIC HGM FUNCTIONAL MODELS BETWEEN REGIONS |
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The hydrogeomorphic (HGM) approach to wetland classification and functional assessment is becoming more widespread in the U.S., but its use has been limited by the length of time n...
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COMPARISON OF IMMUNOASSAY AND GAS CHROMATOGRAPHY/MASS SPECTROMETRY FOR MEASUREMENT OF POLYCYCLIC AROMATIC HYDROCARBONS IN CONTAMINATED SOIL |
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Polycyclic aromatic hydrocarbons (PAHs) are frequently encountered in the environment and may pose health concerns due to their carcinogenicity. A commercial enzyme-linked immun...
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COMPARISON OF IN-SITU VITRIFICATION AND ROTARY KILN INCINERATION FOR SOILS TREATMENT |
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In the hazardous waste community, the term "thermal destruction" is a catch-all phrase that broadly refers to high temperature destruction of hazardous contaminants. ncluded in the...
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COMPARISON OF N2O EMISSIONS FROM SOILS AT THREE TEMPERATE AGRICULTURAL SITES: SIMULATIONS OF YEAR-ROUND MEASUREMENTS BY FOUR MODELS. (R824993) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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COMPARISON OF PESTICIDE ROOT ZONE MODEL PREDICTIONS WITH OBSERVED CONCENTRATIONS FOR THE TOBACCO PESTICIDE METALAXYL IN UNSATURATED ZONE SOILS |
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The pesticide root zone model (PRZM) was developed to evaluate pesticide leaching threats to ground water for different crops under varying climatic conditions, soil characteristic...
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COMPARISON OF PHOTOCHEMICAL BEHAVIOR OF VARIOUS HUMIC SUBSTANCES IN WATER: III. SPECTROSCOPIC PROPERTIES OF HUMIC SUBSTANCES |
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Spectral absorption coefficients and fluorescence quantum efficiencies were determined for humic substances from a variety of sources. Specific absorption coefficients, K(h), for h...
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COMPARISON OF SOIL VOCS MEASURED BY SOIL GAS, HEATED HEADSPACE, AND METHANOL EXTRACTION TECHNIQUES |
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Comparsions of soil volatile organic compound (VOC) measurement techniques and soil properties expected to influence these measurements were performed at two dissimilar sites. A to...
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COMPARISON OF SOME PROPERTIES OF MINESOILS AND CONTIGUOUS NATURAL SOILS |
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Four minesoil pits located within the disturbed area and four natural soil pits located in adjacent undisturbed areas were described and sampled. Bulk densities were determined at ...
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COMPARISON OF THE RISK ASSESSMENT PROCESS FOR PESTICIDES AND BIOPESTICIDES |
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In the risk assessment process for pesticides, a number of variables are used, including the results obtained from the studies that support registration. Some of these variables a...
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COMPARISON OF THREE EARTHWORM BIOASSAY PROCEDURES FOR THE ASSESSMENT OF ENVIRONMENTAL SAMPLES CONTAINING HAZARDOUS WASTES |
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Three different laboratory earthworm protocols for assessing the potential toxicity of environmental samples were evaluated using Eisenia fetida. The 48-h Contact Test (CT) is a sh...
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COMPETITIVE INFLUENCE OF PHOSPHORUS AND CALCIUM ON PB IN-VITRO BIOAVAILABILITY |
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The bioavailability of a metal is heavily related to the speciation of the particular metal. Further, the complexity of examining metal bioavailability is compounded by the presenc...
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COMPETITIVE INFLUENCE OF PHOSPHORUS AND CALCIUM ON PB IN-VITRO BIOAVAILABILITY (S11-SCHECKEL101231-POSTER) |
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The bioavailability of a metal is heavily related to the speciation of the particular metal. Further, the complexity of examining metal bioavailability is compounded by the presenc...
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COMPREHENSIVE REPORT ON THE KPEG PROCESS FOR TREATING CHLORINATED WASTES |
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This comprehensive report describes the work performed in several laboratories toward the development of the alkali metal polyethylene glycolate (APEG) chemical dechlorination tech...
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COMPREHENSIVE REPORT ON THE KPEG PROCESS FOR TREATING CHLORINATED WASTES |
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The comprehensive report describes the work performed in several laboratories toward the development of the alkali metal polyethylene glycolate (APEG) chemical dechlorination techn...
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CONCENTRATION - DEPENDENT KINETICS OF POLLUTANT DESORPTION FROM SOILS. (R825959) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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CONSIDERATION OF SOIL PROPERTIES IN ASSESSMENT OF HUMAN HEALTH RISK FROM EXPOSURE TO ARSENICAL PESTICIDE APPLIED SOILS. (R830842) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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CONSOLVENT EFFECTS ON SORPTION AND MOBILITY OF ORGANIC CONTAMINANTS IN SOILS |
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Batch equilibrium and column miscible displacement techniques were used to investigate the influence of an organic cosolvent (methanol) on the sorption and transport of three hydro...
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CONTAMINANT LEACHING FROM SOLIDIFIED-STABILIZED WASTES |
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Stabilization/solidification processes are being used to minimize the potential for groundwater pollution from land disposal of hazardous wastes. any variations are used, but most ...
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CONTAMINANTS AND REMEDIAL OPTIONS AT PESTICIDE SITES |
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Many types of soils, sediments, and sludges are contaminated with a wide variety of pesticides. ite-specific characteristics such as volume to be treated, extent of contamination, ...
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CONTINUOUS-FLOW METHOD FOR MEASURING EFFECTS OF CHEMICALS ON SOIL NITRIFICATION |
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Because the productivity of terrestrial ecosystems is directly related to microbial nutrient cycling, understanding the effects of chemical contaminants on soil microbial processes...
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CONTRIBUTIONS OF BUILDING MATERIALS TO INDOOR RADON LEVELS IN FLORIDA BUILDINGS |
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The report documents work to characterize potential radon sources in concretes and recommend related changes to Florida's building materials radium standard. (NOTE: The Florida Sta...
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CONTROL OF AROMATIC WASTE AIR STREAMS BY SOIL BIOREACTORS |
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Contamination of groundwater resources is a serious environmental problem which is continuing to increase in occurrence in the United States. It has been reported that leaking unde...
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CONTROL OF TOXIC EMISSIONS FROM THE THERMAL TREATMENT OF CONTAMINATED SOILS |
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The U.S. Environmental Protection Agency (EPA) is investigating technologies to clean up hazardous waste sites through the Superfund Innovative Technology Evaluation (SITE) Program...
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CONTROL OF TRACE METAL SPECIES IN COMBUSTION SYSTEMS |
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The paper discusses the control of trace metal species in combustion systems. (NOTE: Clearly, the need exists for a technology to prevent the release of toxic trace metals to the e...
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CONTROL TECHNOLOGIES FOR REMEDIATION OF CONTAMINATED SOIL AND WASTE DEPOSITS AT SUPERFUND LEAD BATTERY SITES |
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This paper primarily addresses remediation of contaminated soils and waste deposits at defunct lead-acid battery recycling sites (LBRS) via immobilization and separation processes....
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CONTROLLING THE EPIDEMIC OF HAZARDOUS CHEMICALS AND WASTES |
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The disposal of waste products by man has led to the contamination of soil and ground-water. Problems associated with the disposal of hazardous waste are of major concern. Using th...
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CONTROLS ON ANNUAL EMISSIONS OF NITRIC OXIDE FROM SOILS OF THE COLORADO SHORTGRASS STEPPE. (R824993) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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CONTROLS ON STREAM CHEMISTRY IN AN OREGON COASTAL WATERSHED: THE SALMON RIVER |
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Numerous factors may control losses of dissolved nutrients from forested basins in the Oregon Coast Range. Potentially important factors include forest composition, stand age, for...
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CONTROLS ON WATER CHEMISTRY OF AN OREGON COAST RANGE STREAM |
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Numerous factors may control losses of dissolved nutrients from forested basins in the Oregon Coast Range. Potentially important factors include forest composition, stand age, for...
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CORRELATING METAL SPECIATION IN SOILS |
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Understanding bioavailability of metals from exposure to contaminated soils is a challenging aspect of environmental research. This presentation will examine three areas of researc...
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CORRELATING METAL SPECIATION IN SOILS TO RISK |
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Understanding bioavailability of metals from exposure to contaminated soils is a challenging aspect of environmental research. This presentation will examine three areas of researc...
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CORRELATION BETWEEN THE BIOLOGICAL AND PHYSICAL AVAILABILITIES OF PHENANTHRENE IN SOILS AND SOIL HUMIN IN AGING EXPERIMENTS. (R825959) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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CORRELATION OF FLORIDA SOIL-GAS PERMEABILITIES WITH GRAIN SIZE, MOISTURE, AND POROSITY |
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The report describes a new correlation or predicting gas permeabilities of undisturbed or recompacted soils from their average grain diameter (d), moisture saturation factor (m), a...
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CORRELATION OF FLORIDA SOIL-GAS PERMEABILITIES WITH GRAIN SIZE, MOISTURE, AND POROSITY |
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The report describes a new correlation or predicting gas permeabilities of undisturbed or recompacted soils from their average grain diameter (d), moisture saturation factor (m), a...
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CORRELATION OF MICROBIAL DEGRADATION RATES WITH CHEMICAL STRUCTURE |
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Structure-reactivity relationships are established for the microbial degradation of selected organic compounds. Second-order microbial degradation rate constants determined in natu...
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CORRELATION OF THE PARTITIONING OF DISSOLVED ORGANIC MATTER FRACTIONS WITH THE DESORPTION OF CD, CU, NI, PB AND ZN FROM 18 DUTCH SOILS |
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Eighteen Dutch soils were extracted in aqueous solutions at varying pH. Extracts were analyzed for Cd, Cu, Ni, Pb and Zn by ICP-AES. Extract dissolved organic carbon (DOC) was al...
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CORRELATIONS BETWEEN PESTICIDE TRANSFORMATION RATE AND MICROBIAL RESPIRATION ACTIVITY IN SOIL OF DIFFERENT ECOSYSTEMS |
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Cecil sandy loam soils (ultisol) from forest (coniferous and deciduous), pasture, and arable ecosystems were sampled (0-10 cm) in the vicinity of Athens, GA, USA. Soil from each s...
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COSOLVENCY AND SORPTION OF HYDROPHOBIC ORGANIC CHEMICALS |
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Sorption of hydrophobic organic chemicals (HOCs) by two soils was measured from mixed solvents containing water plus completely miscible organic solvents (CMOSs) and partially misc...
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COSOLVENT EFFECTS ON ORGANIC CHEMICAL PARTITIONING TO SEDIMENT ORGANIC CARBON |
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Sorption-desorption hysteresis, slow desorption kinetics and resultant bioavailability, and other nonideal phenomena have been attributed to the differing sorptive characteristics ...
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COSOLVENT EFFECTS ON SORPTION ISOTHERM LINEARITY |
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Sorption-desorption hysteresis, slow desorption kinetics, and other nonideal phenomena have been attributed to the differing sorptive characteristics of the natural organic polymer...
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COUPLING DIAZINON VOLATILIZATION AND WATER EVAPORATION IN UNSATURATED SOILS: I. WATER TRANSPORT. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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CRITICAL REVIEW OF ANALYTICAL APPROACHES FOR PETROLEUM CONTAMINATED SOIL |
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Petroleum products comprise a vast continuum of hydrocarbons from gasoline which is mainly short chain and simple aromatic hydrocarbons, passing to kerosene, diesel, and heavy oils...
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CTSPAC: MATHEMATICAL MODEL FOR COUPLED TRANSPORT OF WATER, SOLUTES, AND HEAT IN THE SOIL-PLANT-ATMOSPHERE CONTINUUM. VOLUME 1. MATHEMATICAL THEORY AND TRANSPORT CONCEPTS |
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The mathematical structure of the model consists of the coupling of a model for the transport through soils to a model for transport through plants. The coupled model describes upt...
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CULTURABILITY OF E. COLI IN VARIOUS DENSITY GRADIENT MEDIA: IMPLICATIONS FOR DENSITY-FRACTIONATION OF SOILS AND SEDIMENTS. (R825303) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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CURRENT AND FUTURE IN SITU TREATMENT TECHNIQUES FOR THE REMEDIATION OF HAZARDOUS SUBSTANCES IN SOIL, SEDIMENTS, AND GROUNDWATER |
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This is a presentation that will be given at the NATO Advanced Research Workshop on "Viable Methods of Soil and Water Pollution Monitoring, Protection, and Remediation" i...
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Characterization Of Environmentally Relevant Chemical And Physical Properties Of Silver Nano-Particles |
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Understanding and predicting the fate and transport of nano-materials in the environment requires a detailed characterization of the chemical and physical properties that control f...
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Characterization of Coal Combustion Residues from Electric Utilities Using Wet Scrubbers for Multi-Pollutant Control |
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This report evaluates changes that may occur to coal combustion residues (CCRs) in response to changes in air pollution control technology at coal-fired power plants, which will re...
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Chloride dynamics in a restored urban stream and the influence of road salts on water quality |
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Understanding the connection between road salts and water quality is essential to assess the implications for human health and ecosystem services from these widely used de-icers. ...
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Current and historical deposition of PBDEs, pesticides, PCBs, and PAHs to Rocky Mountain National Park |
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An analytical method was developed for the trace analysis of 98 semi-volatile organic compounds (SOCs) in remote, high elevation lake sediment. Sediment cores from Lone Pine Lake (...
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DATA BASE ANALYZER AND PARAMETER ESTIMATOR (DBAPE) INTERACTIVE COMPUTER PROGRAM--USER'S MANUAL |
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The Data Base Analyzer and Parameter Estizator (DBAPE) is an interactive computer progran that provides a link between two of EPA's development products--an environmental model and...
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DAYCENT AND ITS LAND SURFACE SUBMODEL: DESCRIPTION AND TESTING. (R824993) |
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AbstractA land surface submodel was developed for the daily version of the CENTURY ecosystem model (DAYCENT). The goal of DAYCENT to simulate soil N2O, NO |
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DBAPE--A DATABASE AND MODEL PARAMETER ANALYSIS SYSTEM FOR AGRICULTURAL SOILS TO SUPPORT WATER QUALITY MANAGEMENT |
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The Data Base Analyzer and Parameter Estimator (DBAPE) is a practical tool for (1) analyzing a national database containing geographic and soils properties data and locations for m...
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DECHLORINATION OF PCBS, CAHS, HERBICIDES AND PESTICIDES NEAT AND IN SOILS AT 25&DEG;C USING NA/NH3. (R829421E01) |
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Na/NH3 reductions have been used to dehalogenate polychlorinated biphenyls (PCBs), chlorinated aliphatic hydrocarbons (CAHs) and pesticides at diffusion controlled ra...
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DECHLORINATION OF PCBS, CAHS, HERBICIDES AND PESTICIDES NEAT AND IN SOILS AT 25C USING NA/NH3. (R826180) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DECHLORINATION OF POLYCHLORINATED BIPHENYLS IN SEDIMENT SLURRIES BY PALLADIUM MODIFIED ZEROVALENT IRON |
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Polychlorinated biphenyls (PCBs) are one group of persistent organic pollutants (POPs) of international concern because of global distribution, persistence, and toxicity. Removal o...
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DECISION-SUPPORT SOFTWARE FOR SOIL VAPOR EXTRACTION TECHNOLOGY APPLICATION: HYPERVENTILATE |
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The U.S. Environmental Protection Agency (EPA) estimate* that 15% to 20% of the approximately 1.7 million underground storage tank (UST) systems containing petroleum products are...
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DECISION-SUPPORT SOFTWARE FOR SOIL VAPOR EXTRACTION TECHNOLOGY APPLICATION: HYPERVENTILATE |
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Soil vapor extraction (SVE) is a proven, in situ corrective action technology that can remove volatile organic compounds (VOC) and selected residual petroleum hydrocarbons from uns...
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DECREASING LEAD BIOAVAILABILITY OF MINE WASTES: TWO PHOSPHATE FIELD STUDIES |
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Findings from two evaluation studies of phosphate-based in situ treatment of soils for reducing lead (Pb) bioavailability at two lead mining and lead refining Superfund sites will ...
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DEGRADATION OF ATRAZINE IN PESTICIDE-CONTAMINATED SOILS: PHYTOREMEDIATION POTENTIAL. (R825549C045) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DEGRADATION OF ATRAZINE, METOLACHLOR, AND PENDIMETHALIN IN PESTICIDE-CONTAMINATED SOILS: EFFECTS OF AGED RESIDUES ON SOIL RESPIRATION AND PLANT SURVIVAL. (R825549C045) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DEGRADATION OF POLYNUCLEAR AROMATIC HYDROCARBONS UNDER BENCH-SCALE COMPOST CONDITIONS |
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The relationship between biomass growth and degradation of polynuclear aromatic hydrocarbons (PAHs) in soil, and subsequent toxicity reduction, was evaluated in 10 in-vessel, bench...
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DEMONSTRATION AND EVALUATION OF INNOVATIVE REMEDIATION TECHNOLOGIES THROUGH THE EPA SITE PROGRAM |
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The Superfund Innovative Technology Evaluation (SITE) Program has successfuly promoted the development, commercialization and implementation of innovative hazardous waste treatment...
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DEMONSTRATION BULLETIN - SOLIDIFICATION/ STABILIZATION PROCESS, SOLIDTECH, INC. |
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The Soliditech solidification/stabilization technology mixes hazardous
waste materials in soils or sludges with pozzolanic material (cement, fly ash, or kiln dust), a proprietary...
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DEMONSTRATION BULLETIN: AOSTRA-SOILTECH ANAEROBIC THERMAL PROCESSOR: WIDE BEACH DEVELOPMENT SITE |
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The anaerobic thermal processor (ATP) was developed by UMATAC Industrial Processes under the sponsorship of the Alberta Oil Sands Technology and Research Authority (AOSTRA) and ...
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DEMONSTRATION BULLETIN: COLD TOP EX-SITU VITRIFICATION PROCESS - GEOTECH DEVELOPMENT CORPORATION |
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The Cold Top Vitrification process, developed by Geotech Development Corporation, is an ex-situ, submerged-electrode, resistance-melting technology. The technology is designed to t...
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DEMONSTRATION BULLETIN: CYCLONE FURNACE SOIL VITRI- FICATION TECHNOLOGY - BABCOCK & WILCOX |
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Babcock and Wilcox's (B&W) cyclone furnace is an innovative thermal technology which may offer advantages in treating soils containing organics, heavy metals, and/or radionuclide ...
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DEMONSTRATION BULLETIN: ENVIROGARD™ PCB TEST KIT - MILLIPORE, INC. |
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The EnviroGard™ polychlorinated biphenyl (PCB) immunoassay test kit rapidly analyzes for PCB concentrations in soils.
Soil sample extracts are added to test tubes coated with an...
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DEMONSTRATION BULLETIN: EX-SITU ANAEROBIC BIOREMEDIATION SYSTEM: DINOSEB - J.R. SIMPLOT COMPANY |
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The J.R. Simplot Ex-situ Anaerobic Bioremediation System is a technology designed to destroy nitroaromatic compounds without forming any toxic intermediates. The nitroaromatic co...
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DEMONSTRATION BULLETIN: EX-SITU ANAEROBIC BIOREMEDIATION TECHNOLOGY - TNT - J.R. SIMPLOT COMPANY |
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The J. R. Simplot Ex-Situ Anaerobic Bioremediation System, also known as the J.R. Simplot Anaerobic Biological Remediaton Process (the SABRE™ Process), is a technology designed to ...
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DEMONSTRATION BULLETIN: FUNGAL TREATMENT BULLETIN |
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Fungal treatment technology uses white rot fungi (lignin degrading fungi) to treat organic contaminated soils in situ. Organic materials inoculated with the fungi are mechanically ...
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DEMONSTRATION BULLETIN: GRACE DEARBORN INC. DARAMEND™ BIOREMEDIATION TECHNOLOGY |
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The DARAMEND™ Bioremediation Technology may be applied to the remediation of soils and sediments contaminated by a wide variety of organic contaminants including chlorinated phe...
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DEMONSTRATION BULLETIN: HIGH VOLTAGE ELECTRON BEAM TECHNOLOGY - HIGH VOLTAGE ENVIRONMENTAL APPLICATIONS, INC. |
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The high energy electron beam irradiation technology is a low temperature method for destroying complex mixtures of hazardous organic chemicals in solutions containing solids. The ...
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DEMONSTRATION BULLETIN: IN SITU ELECTROKINETIC EXTRACTION SYSTEM - SANDIA NATIONAL LABORATORIES |
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Sandia National Laboratories (SNL) has developed an in situ soil remediation system that uses electrokinetic principles to remediate hexavalent chromium-contaminated unsaturated or...
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DEMONSTRATION BULLETIN: IN SITU STEAM ENHANCED RECOVERY PROCESS - HUGHES ENVIRONMENTAL SYSTEMS, INC. |
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The Steam Enhanced Recovery Process (SERP) is designed to remove volatile compounds such as halogenated solvents and petroleum hydrocarbons, and semi-volatile compounds from contam...
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DEMONSTRATION BULLETIN: IN SITU VITRIFICATION - GEOSAFE CORPORATION |
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in Situ Vitrification (ISV) is designed to treat soils, sludges, sediments, and mine tailings contaminated with organic and inorganic compounds. The process uses electrical curren...
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DEMONSTRATION BULLETIN: IN-SITU THERMAL OXIDATION PROCESS - HRUBETZ ENVIRONMENTAL SERVICES |
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The HRUBOUT process is a thermal, treatment process designed to remove VOCs and semi-VOCs from contaminated soils. Heated air is injected into the soil below the contamination zone...
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DEMONSTRATION BULLETIN: IN-SITU VACUUM EXRACTION: TERRA VAC, INC. |
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This in-situ vacuum extraction technology is a process for the removal and venting of volatile organic compounds (VOCs) from the vadose or unsaturated zone of soils. Often, these ...
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DEMONSTRATION BULLETIN: LOW TEMPERATURE THERMAL AERATION (LTTA®) SYSTEM - CANONIE ENVIRONMENTAL SERVICES, INC. |
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The Low Temperature Thermal Aeration (LTTA®) process was developed by Canonie Environmental Services, Inc. (Canonie), as a treatment system that desorbs organic contaminants from s...
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DEMONSTRATION BULLETIN: MOBILE VOLUME REDUCTION UNIT - U.S. ENVIRONMENTAL PROTECTION AGENCY |
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The Volume Reduction Unit (VRU), which was developed by EPA, is a mobile, pilot-scale soil washing system for stand-alone field use in cleaning soil contaminated with hazardous s...
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DEMONSTRATION BULLETIN: MOLECULAR BONDING SYSTEM FOR HEAVY METALS STABILIZATION - SOLUCORP INDUSTRIES LTD. |
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This document presents an evaluation of the Molecular Bonding System (MBS) and its ability to chemically stabilize three metals-contaminated wstes/soils during a SITe demo. The MBS...
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DEMONSTRATION BULLETIN: NEW YORK STATE MULTI-VENDOR BIOREMEDIATION - ENSR CONSULTING AND ENGINEERING/LARSEN ENGINEERS EX-SITU BIOVAULT |
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The ENSR Biovault Treatment Process is an ex-situ bioremediation technology for the treatment of organic contaminated soils. Contaminated soils placed in specially designed soil pi...
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DEMONSTRATION BULLETIN: NEW YORK STATE MULTI-VENDOR BIOREMEDIATION - R.E. WRIGHT ENVIRONMENTAL, INC.'S IN-SITU BIOREMEDIATION TREATMENT SYSTEM |
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The R.E. Wright Environmental, Inc.‘s (REWEI) In-situ Bioremediation Treatment System is an in-situ bioremediation technology for the treatment of soils contaminated with organic c...
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DEMONSTRATION BULLETIN: RADIO FREQUENCY HEATING - IIT RESEARCH INSTITUTE |
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Radio frequency heating (RFH) is a process that uses electromagnetic energy generated by radio waves to heat soil in situ, thereby potentially enhancing the performance of standar...
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DEMONSTRATION BULLETIN: RAPID OPTICAL SCREEN TOOL (ROST™) - LORAL CORPORATION |
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The Loral Rapid Optical Screen Tool (ROST™) is a tunable dye laser system used for the detection of petroleum, semi-volatile, and some volatile organic compounds in soils. The tec...
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DEMONSTRATION BULLETIN: SOIL WASHING SYSTEM - BIOTROL, INC. |
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The three component technologies of the BioTrol Soil Washing System (BSWS). Tested in the SITE demonstration were a Soil Washer (SW), and Aqueous Treatment System (ATS), and a Slu...
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DEMONSTRATION BULLETIN: SOIL/SEDIMENT WASHING SYSTEM BERGMANN USA |
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The Bergmann USA Soil/Sediment Washing System is a waste minimization technique designed to separate or "partition" soils and sediments by grain size and density. In this water-b...
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DEMONSTRATION BULLETIN: SOILTECH ANAEROBIC THERMAL PROCESSOR: OUTBOARD MARINE CORPORATION SITE |
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The ATP system is designed to desorb, collect, and recondense contaminants. The kiln contains four separate internal thermal zones: preheat, retort, combustion, and cooling. In the...
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DEMONSTRATION BULLETIN: SOLIDIFICATION/STABILIZATION OF ORGANIC/INORGANIC CONTAMINANTS - SILICATE TECHNOLOGY CORPORATION |
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Silicate Technology Corporation's (STC's) technology for treating hazardous waste utilizes silicate compounds to stabilize organic and inorganic constituents in contaminated soils ...
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DEMONSTRATION BULLETIN: SOLIDIFICATION/STABILIZATION PROCESS, Hazcon, Inc. |
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The solidification/stabilization technology mixes hazardous wastes, cement, water and an additive called Chloranan. Chloranan, a nontoxic chemical, encapsulates organic molec...
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DEMONSTRATION BULLETIN: TERRA KLEEN SOLVENT EXTRACTION TECHNOLOGY - TERRA-KLEEN RESPONSE GROUP, INC. |
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The Terra-Kleen Solvent Extraction Technology was developed by Terra-Kleen Response Group, Inc., to remove polychlorinated biphenyls (PCB) and other organic constituents from conta...
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DEMONSTRATION BULLETIN: THE BASIC EXTRACTIVE SLUDGE TREATMENT (B.E.S.T.) RESOURCES CONSERVATION COMPANY (RCC) |
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The Basic Extractive Sludge Treatment (B.E.S.T.®) process is a solvent extraction system that separates organic contaminants from sludges, soils, and sediments. The primary disting...
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DEMONSTRATION BULLETIN: THE DEHYDRO-TECH CORP. CARVER-GREENFIELD PROCESS |
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The Carver-Greenfield (C-G) Process (Figure 1) is a physical process that separates hazardous oil-soluble organic contaminants from sludges, soils, and non-aqueous liquids. The pr...
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DEMONSTRATION BULLETIN: THE ECO LOGIC THERMAL DESORPTION UNIT - MIDDLEGROUND LANDFILL - BAY CITY, MI - ELI ECO LOGIC INTERNATIONAL, INC. |
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ECO Logic has developed a thermal desorption unit 0"DU) for the treatment of soils contaminated with hazardous organic contaminants. This TDU has been designed to be used in conjun...
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DEMONSTRATION BULLETIN: THERMAL DESORPTION SYSTEM - CLEAN BERKSHIRES, INC. |
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A thermal desorption system (TDS) has been developed by Clean Berkshires, Inc. (CBI), Lanesboro, Massachusetts for ex-situ treatment of soils and other media contaminated with org...
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DEMONSTRATION BULLETIN: X*TRAX MODEL 200 THERMAL DESORPTION SYSTEMS - CHEMICAL WASTE MANAGEMENT, INC. |
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The X*TRAX™ Mode! 200 Thermal Desorption System developed by Chemical Waste Management, Inc. (CWM), is a low-temperature process designed to separate organic contaminants from soil...
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DEMONSTRATION OF BIODEGRADATION OF DENSE, NONAQUEOUS-PHASE LIQUIDS (DNAPL)THROUGH BIOSTIMULATION AND BIOAUGMENTATION AT LAUNCH COMPLEX 34 IN CAPE CANAVERAL AIR FORCE STATION, FLORIDA |
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Biostimulation involves stimulating indigenous microbial cultures by adding nutrients whereas bioaugmentation involves introducing microbial cultures that are particularly adept at...
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DEMONSTRATION OF PILOT-SCALE PREVAPORATION SYSTEMS FOR VOLATILE ORGANIC COMPOUND REMOVAL FROM A SURFACTANT ENHANCED AQUIFER REMEDIATION FLUID. I. SPIRAL WOUND MEMBRANE MODULES |
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During the summer of 1996, a pilot-scale demonstration of a surfactant enhanced aquifer remediation (SEAR) process for removal of dense non-aqueous phase liquids (DNAPLs) from soil...
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DEMONSTRATION OF REMEDIAL ACTION TECHNOLOGIES FOR CONTAMINATED LAND AND GROUNDWATER - FINAL REPORT - VOLUME 1 |
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This publication reports on the results of the NATO/CCMS Pilot Study "Demonstration of Remedial Action Technologies for Contaminated Land and Ground Water" which was conducted from...
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DEMONSTRATION OF REMEDIAL ACTION TECHNOLOGIES FOR CONTAMINATED LAND AND GROUNDWATER - FINAL REPORT - VOLUME 2: APPENDICES, PART 1 |
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This publication reports on the results of the NATO/CCMS Pilot Study "Demonstration of Remedial Action Technologies for Contaminated Land and Ground Water" which was conducted from...
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DEMONSTRATION OF REMEDIAL ACTION TECHNOLOGIES FOR CONTAMINATED LAND AND GROUNDWATER - FINAL REPORT - VOLUME 2: APPENDICES, PART 2 |
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This publication reports on the results of the NATO/CCMS Pilot Study "Demonstration of Remedial Action Technologies for Contaminated Land and Ground Water" which was conducted from...
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DENITRIFICATION ENZYME ACTIVITY OF FRINGE SALT MARSHES IN NEW ENGLAND (USA) |
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Coastal salt marshes are a buffer between the uplands and adjacent coastal waters in New England (USA). With increasing N loads from developed watersheds, salt marshes could play a...
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DENITRIFICATION IN FRINGING SALT MARSHES OF NARRAGANSETT BAY, RHODE ISLAND, USA |
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In the past century, loading of terrestrial inorganic nitrogen to coastal receiving waters has increased dramatically. Salt marshes, because of their location between upland region...
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DENSITY FRACTIONATION OF FOREST SOILS: METHODOLOGICAL QUESTIONS AND INTERPRETATION OF INCUBATION RESULTS AND TURNOVER TIME IN AN ECOSYSTEM CONTEXT |
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Soil organic matter (SOM) is often separated by physical means to simplify a complex matrix into discrete fractions. A frequent approach to isolating two or more fractions is based...
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DEPTH DEPENDENCE OF DIRECT AND INDIRECT PHOTOLYSIS ON SOIL SURFACES |
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The photolysis depth of direct and indirect photolysis in soils was determined with use of two agrochemicals. he denitroaniline herbicide flumetralin and a dialkyl thioether organo...
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DESCRIPTIVE BASIS FOR A MODEL OF SOILS BIOGEOCHEMISTRY |
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A model of biogeochemical processes for use in simulating greenhouse gas production and consumption is described. he model describes a vertically distributed soil column that is ch...
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DESIGN AND CONSTRUCTION OF COVERS FOR SOLID WASTE LANDFILLS |
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The report provides guidelines in selection, design, and construction of cover for management of municipal, industrial, and hazardous solid wastes (with the exception of radioactiv...
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DESIGN AND EVALUATION OF BENCH-SCALE COMPOST TREATMENT SYSTEM FOR HAZARDOUS WASTE |
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Soil bound contamination presents a significant set of problems to those attempting to remediate the soil. Bioremediation has received considerable attention, as a potential answer...
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DESIGN AND MANAGEMENT OF SUBSURFACE SOIL ABSORPTION SYSTEMS |
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The results of two studies are reported: (1) the effects of construction practices upon soil hydraulic properties; and (2) field examination of the effects of operational strategie...
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DESIGN AND TESTING OF SUB-SLAB DEPRESSURIZATION FOR RADON MITIGATION IN NORTH FLORIDA HOUSES - PART I. PERFORMANCE AND DURABILITY - VOLUME 1. TECHNICAL REPORT |
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The report gives results of a demonstration/research project to evaluate sub-slab depressurization (SSD) techniques for radon mitigation in North Florida where the housing stock is...
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DESIGN AND TESTING OF SUB-SLAB DEPRESSURIZATION FOR RADON MITIGATION IN NORTH FLORIDA HOUSES - PART I. PERFORMANCE AND DURABILITY - VOLUME 2. DATA APPENDICES |
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The report gives results of a demonstration/research project to evaluate sub-slab depressurization (SSD) techniques for radon mitigation in North Florida where the housing stock is...
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DESIGN INFORMATION REPORT: PROTECTION OF WASTEWATER LAGOON INTERIOR SLOPES |
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A problem common to many wastewater treatment and storage lagoons is erosion of the interior slopes. Erosion may be caused by surface runoff and wind-induced wave action. The soils...
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DESORPTION OF 2,3,7,8,-TCDD FROM SOILS INTO WATER/METHANOL AND METHANOL LIQUID PHASES |
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The kinetics of 2,3,7,8-TCDD sorption and desorption were investigated. Results are presented for two different soils. The experimental data suggest that the sorption process appea...
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DESTRUCTION OF DIOXIN-CONTAMINATED SOLIDS AND LIQUIDS BY MOBILE INCINERATION |
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The EPA Mobile Incineration System, which consists of a kiln, secondary combustion chamber, air pollution control unit, and separate continuous stack gas analysis capabilities, was...
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DESTRUCTION OF PCB-CONTAMINATED SOILS WITH A HIGH-TEMPERATURE FLUID-WALL (HTFW) REACTOR |
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The objective of this project is to demonstrate the feasibility of a high temperature fluid-wall (HTFW) Reactor to detoxify biorefractory hazardous substances, as well as soils con...
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DETAILED SOIL SURVEYS AND DISTRIBUTED BMPS FOR STORMWATER QUANTITY CONTROL. MAKING THE CONNECTION |
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Best management practices (BMPs) that operate on the basis of infiltration can be used at the parcel-level to reduce the volume of stormwater runoff that would otherwise erode land...
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DETECTION AND DISINFECTION OF PATHOGENS IN STORM- GENERATED FLOWS |
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The disease-producing potential of recreational waters is currently estimated through the use of certain bacterial indicators that are believed to be positively correlated with the...
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DETECTION AND DISINFECTION OF PATHOGENS IN STORM-GENERATED FLOWS |
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The disease-producing potential of recreational waters is currently estimated through the use of certain bacterial indicators which are believed to be positively correlated with th...
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DETERMINATION AND PREDICTION OF CHEMICAL FORMS OF TRACE METALS IN SEWAGE SLUDGE AND SLUDGE-AMENDED SOILS |
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The overall objective of the research conducted under this project was to define the chemical equilibrium between trace metals and the soluble and insoluble organic and inorganic f...
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DETERMINATION OF AROMATIC AMINES IN SOILS |
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A rapid liquid chromatographic(LC)method with ultraviolet(UV)or fluorescence detection was developed for parts-per-billion levels of aromatic amines in soils. 2,4-Diaminotoluene, p...
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DETERMINATION OF BACKGROUND CONCENTRATIONS OF INORGANICS IN SOILS AND SEDIMENTS AT HAZARDOUS WASTE SITES |
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The purpose of this paper is to provide scientists investigating hazardous waste sites a summary of the technical issues that need to be considered when determining if a site (i.e....
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DETERMINATION OF CHLORDANE IN SOIL BY LC/GC/ECD AND LC/GC/EC NIMS WITH COMPARISON OF ASE, SFE, AND SOXHLET EXTRACTION |
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Chlordane is a polychlorinated mixture that was used as a long-lived pesticide and now is considered a potential endocrine-disrupting compound. The Environmental Sciences Division ...
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DETERMINATION OF EFFECTIVE POROSITY OF SOIL MATERIALS |
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The performance of a compacted soil liner is partly a function of the porosity, where the transport of materials through the liner occurs via the pore space. The project studies th...
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DETERMINATION OF KINETICS OF PHOSPHORUS MINERALIZATION IN SOILS UNDER OXIDIZING CONDITIONS |
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In search of a better approach to predict phosphorus movement in soils from applied wastewaters, reactions of added orthophosphates were studied in 9 different soils with widely va...
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DETERMINATION OF PCBS IN SOILS/SEDIMENTS BY MICROWAVE-ASSISTED EXTRACTION AND GC/ECD OR ELISA |
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This article describes the application of microwave-assisted extraction (MAE) combined either with gas chromatography and electron capture detection (GC/ECD) or with enzyme-linked ...
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DETERMINATION OF PCBS IN SOILS/SEDIMENTS BY MICROWAVE-ASSISTED EXTRACTION AND GC/ECD OR ELISA |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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DETERMINATION OF PERCHLORATE IN TOBACCO PLANTS AND TOBACCO PRODUCTS |
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Previous field and laboratory studies with vascular plants have shown that perchlorate is transported from perchlorate fortified soils and is accumulated in the plant tissues and o...
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DETERMINATION OF PERFLUORINATED CHEMICALS (PFCS) IN SOILS, SEDIMENT AND OTHER MATRICES |
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There is no abstract for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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DETERMINATION OF PERFLUORINATED CHEMICALS (PFCS) IN SOILS, SEDIMENT AND OTHER MATRICES |
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Soils that receive land application of treated wastewater from carpet manufacturing plants were sampled for perfluorooctanoic acid (PFOA) and other perfluorinated chemicals (PFCs) ...
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DETERMINATION OF THE ENVIRONMENTAL IMPACT OF SEVERAL SUBSTITUTE CHEMICALS IN AGRICULTURALLY AFFECTED WETLANDS |
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Procedures have been developed for processing of anaerobic wetland sediments for pesticide recovery along with formulation of simulation models of anaerobic/aerobic soil and sedime...
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DETERMINATION OF TRANSFORMATION RATES OF CHIRAL PESTICIDES AND PCBS IN SOIL AND SEDIMENT MICROCOSMS |
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Risk Based Corrective Action (RBCA) has gained widespread acceptance as a favorable approach to remediating contaminated sites. The use of RBCA methods often requires computer-bas...
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DETERMINATION OF VOLATILE ORGANIC COMPOUNDS IN SOILS USING EQUILIBRIUM HEADSPACE ANALYSIS AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY |
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Existing methods for determination of volatile organic compounds (VOCs) in soil matrices using the purge and trap technique with gas chromatography/mass spectrometry (GC/MS) have s...
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DETERMINING SPECIATION OF PB IN PHOSPHATE AMENDED SOILS: METHOD LIMITATIONS |
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Determining the effectiveness of in-situ immobilization for P-amended, Pb-contaminated soils has typically relied on non-spectroscopic methods that in recent years have come under ...
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DEVELOPING ECOLOGICAL SOIL SCREENING LEVELS: BENCHMARK VALUES FOR SOIL INVERTEBRATES, PLANTS, AND MICROBIAL FUNCTIONS |
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Soils are repositories for environmental contaminants (COCs) in terrestrial ecosystems. Time, effort, and money repeatedly are invested in literature-based evaluations of potentia...
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DEVELOPMENT AND SELECTION OF AMMONIA EMISSION FACTORS |
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This report compiles recent literature on ammonia (NH') emission factors for application in the United States. ost of the recent research supports acid deposition studies in the Eu...
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DEVELOPMENT AND VALIDATION OF AN AIR-TO-BEEF FOOD CHAIN MODEL |
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A model for predicting concentrations of dioxin-like compounds in beef is developed and tested. The key premise of the model is that concentrations of these compounds in air are t...
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DEVELOPMENT OF A CAPILLARY WICK UNSATURATED ZONE PORE WATER SAMPLER |
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Existing unsaturated zone soil water samplers have several deficiencies which jeopardize their utility for field sampling. A capillary wick sampler was developed to overcome these ...
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DEVELOPMENT OF A FIELD TEST METHOD FOR THE DETERMINATION OF LEAD IN PAINT, AND PAINT-CONTAMINATED DUST AND SOIL |
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A rapid, simple, inexpensive, and relatively accurate field test method for the determination of lead (Pb) in paints, dusts, and soils has been developed. The method involves the u...
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DEVELOPMENT OF A RADON PROTECTION MAP FOR LARGE BUILDINGS IN FLORIDA |
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The report discusses the development of a radon protection map to show from soil and geological features the areas of Florida that require different levels of Radon protection for ...
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DEVELOPMENT OF A SYSTEM TO PROTECT GROUNDWATER THREATENED BY HAZARDOUS SPILLS ON LAND |
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The purpose of this project was to establish an alternative approach to treatment of hazardous materials spills on land other than the frequently limited approach of excavation or ...
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DEVELOPMENT OF A WATERSHED-BASED MERCURY POLLUTION CHARACTERIZATION SYSTEM |
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To investigate total mercury loadings to streams in a watershed, we have developed a watershed-based source quantification model ? Watershed Mercury Characterization System. The sy...
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DEVELOPMENT OF AN AIR-TO-LEAF VAPOR PHASE TRANSFER FACTOR FOR DIOXINS AND FURANS |
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Results of an experiment in which grass was grown in a greenhouse and outdoors, and in soils of different concentration levels of dioxins and furans, were used in a modeling exerci...
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DEVELOPMENT OF CHEMICAL COUNTERMEASURES FOR HAZARDOUS WASTE CONTAMINATED SOIL |
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The objective of this project is to evaluate the efficacy of in-situ treatment of large volumes of subsurface soils, and large, relatively quiescent waterbodies. To date, efforts h...
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DEVELOPMENT OF ELECTRO-ACOUSTIC SOIL DECONTAMINATION (ESD) FOR IN-SITU APPLICATIONS |
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The technical feasibility of electro-acoustic soil decontamination process through lab experiments demonstrated the removal/-concentration of heavy metals such as cadmium and zinc....
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DEVELOPMENT OF RECOMMENDATIONS AND METHODS TO SUPPORT ASSESSMENT OF SOIL VENTING PERFORMANCE AND CLOSURE |
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Soil venting, which includes gas extraction and/or gas injection, is the primary method used in the United States to remove volatile organic compounds (VOCs) from unsaturated subsu...
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DEVELOPMENT OF WATER AND SOIL TREATMENT TECHNOLOGY BASED ON THE UTILIZATION OF A WHITE-ROT, WOOD ROTTING FUNGUS |
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The wood rotting fungus, Phanerochaete chrysosporium has been selected as a candidate species to be used as a degrader of hazardous waste organic constituents found in liquids and ...
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DEVELOPMENTS IN CHEMICAL TREATMENT OF CONTAMINATED SOIL |
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The U.S. Environmental Protection Agency's Office of Research and Development (ORD) is examining processes for remedial action at Superfund sites, and corrective action at operatin...
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DIFFUSION AND SORPTION OF HEXACHLOROBENZENE IN SEDIMENTS AND SATURATED SOILS. (R825278) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DIOXIN EXPOSURE INITIATIVE ONGOING PROJECTS |
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Following is a listing and descriptions of projects that are underway in EPA's |
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DIOXIN EXPOSURE INITIATIVE PUBLICATIONS |
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Following is a listing of published articles that have come out of EPA's |
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DIOXINS AND ENDOMETRIOSIS: COHORT STUDY OF WOMEN IN WEST VIRGINIA |
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Kanawha Valley of West Virginia has a history of 2,3,7,8-tetrachlorodibenzo-p-dioxin contamination (dioxin, TCDD). The bulk of the dioxin found in this area appears to be derived ...
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DIRECT/DELAYED RESPONSE PROJECT: DEFINITION OF SAMPLING CLASSES AND SELECTION OF SAMPLING SITES FOR THE NORTHEAST |
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The Direct/Delayed Response Project (DDRP) has been designed and implemented by the U.S. Environmental Protection Agency to estimate the number of surface waters (lakes, streams) t...
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DIRECT/DELAYED RESPONSE PROJECT: FIELD OPERATIONS AND QUALITY ASSURANCE REPORT FOR SOIL SAMPLING AND PREPARATION IN THE NORTHEASTERN UNITED STATES. VOLUME 1. SAMPLING |
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The Direct/Delayed Response Project Soil Survey includes the mapping, characterization, sampling, preparation, and analysis of soils in order to assess watershed response to acidic...
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DIRECT/DELAYED RESPONSE PROJECT: FIELD OPERATIONS AND QUALITY ASSURANCE REPORT FOR SOIL SAMPLING AND PREPARATION IN THE NORTHEASTERN UNITED STATES. VOLUME 2. PREPARATION |
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The Direct/Delayed Response Project Soil Survey includes the mapping, characterization, sampling, preparation, and analysis of soils in order to assess watershed response to acidic...
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DIRECT/DELAYED RESPONSE PROJECT: FIELD OPERATIONS AND QUALITY ASSURANCE REPORT FOR SOIL SAMPLING AND PREPARATION IN THE SOUTHERN BLUE RIDGE PROVINCE OF THE UNITED STATES. VOLUME 1. SAMPLING |
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The Direct/Delayed Response Project Soil Survey includes the mapping, characterization, sampling, preparation, and analysis of soils in order to assess watershed response to acidic...
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DIRECT/DELAYED RESPONSE PROJECT: FIELD OPERATIONS AND QUALITY ASSURANCE REPORT FOR SOIL SAMPLING AND PREPARATION IN THE SOUTHERN BLUE RIDGE PROVINCE OF THE UNITED STATES. VOLUME 2. PREPARATION |
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The Direct/Delayed Response Project Soil Survey includes the mapping, characterization, sampling, preparation, and analysis of soils in order to assess watershed response to acidic...
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DIRECT/DELAYED RESPONSE PROJECT: LABORATORY OPERATIONS AND QUALITY ASSURANCE REPORT FOR PREPARATION OF SOILS FROM THE MID-APPALACHIAN REGION OF THE UNITED STATES |
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The Mid-Appalachian soil survey was conducted in 1988-89 as Part of the U.S. Environmental Protection Agency (EPA) Direct/Delayed Response Project (DDRP). he DDRP is a research pro...
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DIRECT/DELAYED RESPONSE PROJECT: MID-APPALACHIAN SOIL CORRELATION AND SAMPLING CLASS DEVELOPMENT WORKSHOP |
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The Direct/Delayed Response Project (DDRP) has been designed and implemented by the U.S. Environmental Protection Agency to estimate the number of surface waters (lakes, streams) i...
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DIRECT/DELAYED RESPONSE PROJECT: QUALITY ASSURANCE PLAN FOR PREPARATION AND ANALYSIS OF SOILS FROM THE MID-APPALACHIAN REGION OF THE UNITED STATES |
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The Direct/Delayed Response Project is designed to address the concern over potential acidification of surface waters by atmospheric sulfur deposition within the United States. The...
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DIRECT/DELAYED RESPONSE PROJECT: QUALITY ASSURANCE REPORT FOR PHYSICAL AND CHEMCIAL ANALYSES OF SOILS FROM THE NORTHEASTERN UNITED STATES |
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The Northeastern Soil survey was conducted during 1985 as a synoptic physical and chemical survey to characterize a statistical sampling of watersheds in a region of the United Sta...
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DIRECT/DELAYED RESPONSE PROJECT: QUALITY ASSURANCE REPORT FOR PHYSICAL AND CHEMICAL ANALYSES OF SOILS FROM THE MID-APPALACHIAN REGION OF THE MID-APPALACHIAN REGION OF THE UNITED STATES |
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The Direct/Delayed Response Project was designed to address the concern over potential acidification of surface waters by atmospheric sulfur deposition in the United States. he pur...
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DISCOVERING THE CAUSES, CONSEQUENCES, AND IMPLICATIONS OF ACID RAIN AND ATMOSPHERIC DEPOSITION |
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Much has been learned in recent years about air pollution, acid precipitation and atmospheric deposition and their effects on public welfare. There are still unanswered questions a...
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DISSOLVED ORGANIC CARBON AND DISSOLVED CARBON DIOXIDE CONCENTRATIONS AND EXPORT IN GEORGIA PIEDMONT HEADWATER STREAMS |
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The South Fork Broad River (SFBR) drains about 550 km2 of the Georgia Piedmont. The SFBR watershed is primarily rural and undeveloped although the human population increased by ab...
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DISSOLVED ORGANIC CARBON AND SULFATE SORPTION BY SPODOSOL MINERAL HORIZONS |
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Dissolved organic carbon (DOC) can influence the mobility and sorption of inorganic solutes in soils. hrough DOC sorption, surface sites can be inhibited thus preventing the retent...
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DISSOLVED ORGANIC MATTER AND METALS: EFFECTS OF PH ON PARTITIONING |
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Eighteen Dutch soils were extracted in aqueous solutions at varying pH. Extracts were analyzed for Cd, Cu, Ni, Pb, and Zn by ICP-AES. Extract dissolved organic carbon (DOC) was fra...
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DISSOLVED ORGANIC MATTER AND METALS: EFFECTS OF PH ON PARTITIONING NATURAL ORGANIC MATTER IN SOILS AND WATER |
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Eighteen Dutch soils were extracted in aqueous solutions at varying pH. Extracts were analyzed for Cd, Cu, Ni, Pb, and Zn by ICP-AES. Extract dissolved organic carbon (DOC) was fra...
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DISTRIBUTION AND ABUNDANCE OF TREES IN FLOODPLAIN FORESTS OF THE WISCONSIN RIVER: EFFECTS OF PHYSIOGRAPHY, SOILS, LAND-COVER AND FLOODING REGIME. (R826600) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DISTRIBUTION AND MOVEMENT OF TOXAPHENE IN ANAEROBIC SALINE MARSH SOILS |
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The distribution and method of movement of a hydrophobic pesticide through anaerobic saline marsh soils profiles was investigated. In the study are the flooding tidal water contain...
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DISTRIBUTION OF ARSENIC IN CHEMICALLY VARIANT DIPPING VAT SITE SOILS. (R830842) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DISTRIBUTION OF PARAMETERS DETERMINING BIOAVAILABILITY OF METALS IN EUROPEAN SOILS |
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As part of a program to develop a predictive model of bioavailability and toxicity of copper in soils to terrestrial organisms, 19 soils from 9 countries of the EU were collected a...
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DISTRIBUTION, SPECIATION, AND TRANSFORMATION OF CHROMIUM IN CONTAMINATED SOILS AND AQUIFER SEDIMENTS |
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The chemical speciation and distribution of chromium on unsaturated contaminated soils, and saturated aquifer sediments was analyzed in the vicinity of a chrome plating operation. ...
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DIVERSITY SURFACES AND SPECIES WAVE FRONTS IN A SOIL MICROARTHROPOD ASSEMBLAGE: ADDING THE DIMENSION OF TIME |
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As a general rule, animal species of intermediate size within a given taxonomic group are most abundant in nature. It is not known if these patterns occur in small-bodied taxa, suc...
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DNA SORPTION TO SOILS AND SEDIMENTS |
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Deoxyribonucleic acid (DNA) adsorption of five soils, an acid-washed sand, and a lake sediment was investigated. ll DNA at environmentally relevant concentrations was adsorbed by s...
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DOCUMENTATION OF EMSL-LV (ENVIRONMENTAL MONITORING SYSTEMS LABORATORY-LAS VEGAS) CONTRIBUTION TO DALLAS LEAD STUDY |
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During the summer of 1982 the U.S. Environmental Protection Agency (EPA), conducted a comprehensive multimedia environmental monitoring program in the vicinity of two secondary lea...
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DOTAGWA: A CASE STUDY IN WEB-BASED ARCHITECTURES FOR CONNECTING SURFACE WATER MODELS TO SPATIALLY ENABLED WEB APPLICATIONS |
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The Automated Geospatial Watershed Assessment (AGWA) tool is a desktop application that uses widely available standardized spatial datasets to derive inputs for multi-scale hydrolo...
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DUAL-MODE MODELING OF COMPETITIVE AND CONCENTRATION-DEPENDENT SORPTION AND DESORPTION KINETICS OF POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS. (R825959) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DYNAMIC CONTROLS ON DENITRIFICATION IN SOILS UNDER DIFFERENT VEGETATION TYPES |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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DYNAMICS OF CARBON STORAGE IN SOILS AND DETRITUS ACROSS CHRONOSEQUENCES OF DIFFERENT FOREST TYPES IN THE PACIFIC NORTHWEST, USA. (R828309) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DYNAMICS OF MINERAL STRUCTURES AND THE FATE OF METALS IN SOILS AND SEDIMENTS |
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Significant progress has been made in elucidating sorption reactions that control the partitioning of metals from solution to mineral surfaces in contaminated soil/sediment systems...
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Demonstration of ISCO Treatment of a DNAPL Source Zone at Launch Complex 34 in Cape Canaveral Air Station, FL |
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The Interagency DNAPL Consortium (IDC) was formally established in 1999 by the U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (U.S. EPA), Department of Defen...
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Denitrification Potential, Root Biomass and Organic Matter in Degraded and Restored Urban Riparian Zones |
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Hydrologic changes associated with urbanization often lead to lower water tables and drier, more aerobic soils in riparian zones. These changes
reduce the potential for denitrifi...
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EARLY INDICATORS OF NITRATE STRESS; EFFECTS TO ECOSYSTEMS OF CHRONIC EXPOSURE TO LOW DOSES OF BIOAVAILABE NITROGEN |
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Throughout the eastern United States, from the Front Range of the Rocky Mountains to the Atlantic Ocean, bioavailable nitrogen has been falling in the rain since the industrial rev...
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EARLY INDICATORS OF NITRATE STRESS; EFFECTS TO ECOSYSTEMS OF CHRONIC EXPOSURE TO LOW DOSES OF BIOAVAILABLE NITROGEN |
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Throughout the eastern United States, from the Front Range of the Rocky Mountains to the Atlantic Ocean, bioavailable nitrogen has been falling in the rain since the industrial rev...
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EARTHWORMS OF THE WESTERN UNITED STATES. PART 1. LUMBRICIDAE |
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The earthworm fauna of the western United States is an amalgam of native and introduced elements. While the native species are mostly members of the family Megascolecidae, and clos...
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ECO LOGIC INTERNATIONAL GAS-PHASE CHEMICAL REDUCTION PROCESS - THE THERMAL DESORPTION UNIT - APPLICATIONS ANALYSIS REPORT |
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This report details the Superfund Innovative Technology Evaluation of the Eco Logic International's gas-phase chemical reduction process, with an emphasis on their thermal desorpti...
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ECO LOGIC INTERNATIONAL GAS-PHASE CHEMICAL REDUCTION PROCESS - THE THERMAL DESORPTION UNIT - APPLICATIONS ANALYSIS REPORT |
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ELI ECO Logic International, Inc.'s Thermal Desorption Unit (TDU) is specifically designed for use with Eco Logic's Gas Phase Chemical Reduction Process. The technology uses an ext...
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ECOLOGICAL RECOVERY AFTER RECLAMATION OF TOXIC SPOILS LEFT BY COAL SURFACE MINING. PHASE 2. AN ASSESSMENT OF ENVIRONMENTAL CHANGES FOLLOWING INTENSIVE REMEDIAL TREATMENTS |
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The study involves a selected watershed in which surface mining and unsuccessful reclamation efforts in the early 1970s resulted in adverse environmental impacts. Work on the east ...
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ECOLOGICAL SOIL SCREENING LEVELS (ECO-SSLS) FOR SUPERFUND |
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The US Environmental Protection Agency (USEPA) has established ecological soil screening values for 24 soil contaminants frequently of ecological concern for terrestrial plants and...
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ECOREGIONS OF ALASKA |
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A map of ecoregions of Alaska has been produced as a framework for organizing and interpreting environmental data for state, national, and international inventory, monitoring, and ...
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ECOREGIONS OF TEXAS |
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Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for...
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ECOREGIONS OF THE CONTERMINOUS UNITED STATES |
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A map of ecoregions of the conterminous United States has been compiled to assist managers of aquatic and terrestrial resources in understanding the regional patterns of the realis...
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ECOREGIONS OF THE UPPER MIDWEST STATES |
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A map of ecoregions of the Upper Midwest States was compiled to give managers of aquatic and terrestrial resources a better understanding of the regional patterns of attainable qua...
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ECOREGIONS OF WISCONSIN |
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Ecoregions are geographical areas within which the biotic and abiotic components of terrestrial and aquatic ecosystems exhibit different but relatively homogeneous patterns in comp...
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ECOSYSTEM RESOTRATION ON METAL-TOXIC SOILS USING BIOSOLIDS AND ALKALINE BYPRODUCTS (ABSTRACT) |
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Soils in many locations are mineralized or were contaminated by industry (e.g. mine wastes; smelter emissions). Zn-Pb-Ag-Cu ores often caused severe Zn phytotoxicity which killed v...
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ECOSYSTEM RESTORATION ON METAL-TOXIC SOILS USING BIOSOLIDS AND ALKALINE BYPRODUCTS |
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Soils in many locations are mineralized or were contaminated by industry (e.g. mine wastes; smelter emissions). Zn-Pb-Ag-Cu ores often caused severe Zn phytotoxicity which killed v...
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ECTOMYCORRHIZAL DIVERSITY IN A LOBLOLLY PINE (PINUS TAEDA L.) GENETICS PLANTATION: INFLUENCE OF FERTILIZATION |
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Loblolly pine (Pinus taeda L.) Has co-evolved a high dependency on ectomycorrhizal (ECM) associations most likely because its natural range includes soils of varying moisture that ...
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ECTOMYCORRHIZAL DNA: ISOLATION, RFLPS, AND PROBE HYBRIDIZATION |
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We are in a new era for research in terrestrial ecology. s with diagnostics and research in medicine and forensics, molecular biology is transforming the way we pose hypotheses, co...
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EFFECT OF A BASE-CATALYZED DECHLORINATION PROCESS ON THE GENOTOXICITY OF PCB-CONTAMINATED SOIL |
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We evaluated the genotoxicity of dichloromethane (DCM) extracts of PCB-contaminated soil before and after the soil had been treated by a base-catalyzed dechlorination process, whic...
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EFFECT OF ACID TREATMENT ON DISSOLVED ORGANIC CARBON RETENTION BY A SPODIC HORIZON |
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Processes involving the movement of organic substances in forest soils are not well understood. This study was conducted to examine the role of acidic inputs on dissolved organic c...
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EFFECT OF BIOSOLIDS APPLICATION ON SOIL METAL CHEMISTRY AND PHYTOAVAILABILITY |
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Addition of biosolids to soils increases the environmental loading of toxic metals (Cd, Zn, Cu, Ni, Pb, etc.) and alters the chemistry and phytoavailability of these metals. This...
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EFFECT OF BIOSOLIDS APPLICATION ON SOIL METAL CHEMISTRY AND PHYTOAVAILABILITY (LAKE BUENA VISTA, FL) |
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Addition of biosolids to soils increases the environmental loading of toxic metals (Cd, Zn, Cu, Ni, Pb, etc.) and alters the chemistry and phytoavailability of these metals. This...
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EFFECT OF BIOSOLIDS ON PHYTOAVAILABILITY OF CD IN LONG-TERM AMENDED SOILS |
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Cadmium sorption and desorption experiments were conducted on different fractions of soils amended with different biosolids with varying chemical properties and unamended soil (con...
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EFFECT OF CAPILLARITY AND SOIL STRUCTURE ON FLOW IN LOW PERMEABILITY SATURATED SOILS AT DISPOSAL FACILITIES |
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Permit applications may be received which propose to place hazardous waste land disposal facilities in a saturated zone of low permeability (low-K) soils. This report addresses onl...
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EFFECT OF CHEMICALS ON SOIL NITRIFYING POPULATIONS USING A CONTINUOUS-FLOW CULTURE TECHNIQUE |
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This study examines the effects of Roundup [N-(phosphonomethyl)glycine] and N-Serve[2-chloro-6-(trichloromethyl)pyridine] on nitrifying organisms in static batch, perfusion soil co...
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EFFECT OF IMPURITIES ASSOCIATED WITH ALUMINOSILICATES ON ARSENIC SORPTION AND OXIDATION |
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Arsenite, As(III), and arsenate, As(V), are of increasing environmental concern. Risk assessment and risk management of arsenic contaminated sites requires a better understanding ...
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EFFECT OF LAND DISPOSAL APPLICATIONS OF MUNICIPAL ENVIRONMENTAL WASTES ON CROP YIELDS AND HEAVY METAL UPTAKE |
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This report provides the cumulative data acquired from 1969 through 1975 from field and greenhouse investigations pertaining to the effects on selected soils and plants from munici...
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EFFECT OF MANAGEMENT PRACTICES ON THE SOIL MICROBIAL COMMUNITY IN AGRICULTURAL AND NATIVE SYSTEMS IN BRAZIL |
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Increase in agricultural practices in the Cerrado (tropical savannah) and Amazon regions in Brazil is causing drastic changes in the nutrient and carbon cycling of native areas. B...
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EFFECT OF NON-TARGET ORGANICS ON ORGANIC CHEMICAL TRANSPORT |
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To improve our standard of living, man has synthesized organic compounds for use in products considered essential for life. These compounds are having and will continue to have a s...
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EFFECT OF PH AND REDOX CONDITIONS ON DESTABILIZATION OF MINING WASTES CONTAINING MERCURY |
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Clear Lake in Northern California has received inputs of mercury mining wastes from the Sulfur Bank Mercury Mine. About 1.2M tons of Hg-contaminated overburden and mine tailings we...
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EFFECT OF PHOSPHORUS TREATMENT ON LEAD MINERALOGY |
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Remediation of Pb-contaminated soils by amendments of phosphate may prove to be a viable way of sequestering Pb in the natural environment. Test plots of Pb-contaminated soil near ...
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EFFECT OF ROOTS ON WATER FLOW IN UNSATURATED SOILS. (R825414) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECT OF SIMULATED ACID PRECIPITATION ON NITROGEN MINERALIZATION AND NITRIFICATION IN FOREST SOILS |
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After exposure of samples of three forest soils(pH 3.4 and 3.9) from the Adirondacks region of New York to 60, 230, or 400 cm of simulated rain of pH 3.5 or 5.6 in 4, 14 or 24 week...
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EFFECT OF SIMULATED ACID RAIN ON NITRIFICATION AND NITROGEN MINERALIZATION IN FOREST SOILS |
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To determine the possible microbiological changes in soil resulting from acid rain, columns containing samples of forest soils were leached with either a continuous application of ...
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EFFECT OF SOIL MODIFYING FACTORS ON THE BIOAVAILABILITY AND TOXICITY OF METAL CONTAMINATED SOILS |
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Heavy metal and organic chemical contamination of soils is a worldwide problem posing a risk to humans and more directly, soil organisms. Metal toxicity is often not directly re...
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EFFECT OF SOIL N ON FINE ROOT PRODUCTION AND MORTALITY IN PSEUDOTSUGA MENZIESII |
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The influence of soil N level on fine (diameter < 2 mm) root standing crop, production and mortality was assessed over a three-year period using minirhizotron tubes. Study sites we...
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EFFECT OF SOIL PB INACTIVATION TREATMENTS ON BIOAVAILABILITY OF JOPLIN, MO, SMELTER CONTAMINATED SOIL PB TO RATS |
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The effects of treating contaminated soils with various soil amendments on the bioavailability of lead were assessed in the weanling rat model. The effect of treatment was assessed...
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EFFECT OF SOIL PROCESSES ON THE ACIDIFICATION OF WATER BY ACID DEPOSITION |
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The mechanism whereby acid deposition can cause acidification of surface waters via equilibrium processes in soil solution was investigated using chemical equilibrium models. These...
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EFFECT OF SOIL PROPERTIES ON LEAD BIOAVAILABILITY AND TOXCITY TO EARTHWORMS |
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Soil properties are important factors modifying metal bioavailability to ecological receptors. Twenty-one soils with a wide range of soil properties were amended with a single con...
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EFFECT OF SOIL PROPERTIES ON THE TOXICITY AND BIOAVAILABILITY OF METALS |
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Heavy metal and organic chemical contamination of soils is a worldwide problem posing a risk to humans and more directly, soil organisms. Due to widespread metal contamination, ...
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EFFECT OF SOLVENTS IN WATER ON ELECTROCATALYTIC DECHLORINATION OF 2-CL BP AT A PALLADIUM MODIFIED GRANULAR-GRAPHITE ELECTRODE |
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Remediation of soils and sediments contaminated by polychlorinated biphenyls (PCBs) usually involves use of organic solvents because PCBs have very limited solubility in water. The...
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EFFECT OF THE QUANTITY AND DURATION OF APPLICATION OF SIMULATED ACID PRECIPITATION ON NITROGEN MINERALIZATION AND NITRIFICATION IN A FOREST SOIL |
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A study was conducted of the influence of the rate of application of simulated acid rain on N mineralization and nitrification in a forest soil. The rates were varied by applying d...
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EFFECT OF TRENDS IN TILLAGE PRACTICES ON EROSION AND CARBON CONTENT OF SOILS IN THE U.S. CORN BELT |
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The EPIC model was used to simulate soil erosion and soil carbon content at 100 randomly selected sites in the US corn belt. our management scenarios were run for 100 years: (1) cu...
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EFFECTIVENESS OF RADON CONTROL FEATURES IN NEW HOUSE CONSTRUCTION - SOUTH CENTRAL FLORIDA |
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The report gives results of a study to evaluate the effectiveness of two slab types (monolithic and slab-in-stem wall) in retarding radon entry in new homes built in accordance wit...
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EFFECTS OF A LIGNIN PEROXIDASE-EXPRESSING RECOMBINANT STREPTOMYCES LIVIDANS TK23.1 ON BIOGEOCHEMICAL CYCLING AND THE NUMBERS AND ACTIVITIES OF MICROORGANISMS IN SOIL |
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A recombinant actinomycete, Streptomyces lividans TK23.1, expressing a pIJ702-encoded extracellular lignin peroxidase gene cloned from the chromosome of Streptomyces virodosporus T...
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EFFECTS OF ACID PRECIPITATION |
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Recent reviews of available data indicate that precipitation in a large region of North America is highly acidic when its pH is compared with the expected pH value of 5.65 for pure...
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EFFECTS OF ACID PRECIPITATION IN NORTH AMERICA |
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Recent evidence indicates that acid rain is a growing environmental phenomenon of potentially far reaching consequences and increasing geographical extent in North America. Acid ra...
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EFFECTS OF ACID PRECIPITATION ON A TYPIC QUARTZIPSAMMENT SOIL IN FLORIDA |
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The magnitude of leaching of nutrients from the soil surface to the water table and to a nearby drainage system depends on many factors unique to the site. The sensitive deep sands...
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EFFECTS OF ACID PRECIPITATION ON MICROBIOLOGICAL AND CHEMICAL PARAMETERS IN SOILS: THE FLORIDA EXPERIENCE |
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The effects of acid precipitation on microbiological and chemical parameters in soils were investigated under field conditions. The study site consisted of three transects, each in...
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EFFECTS OF ACID PRECIPITATION ON SOIL LEACHATE QUALITY: COMPUTER CALCULATIONS |
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The multipurpose computer program GEOCHEM was employed to calculate the equilibrium speciation in twenty-three examples of acid precipitation from New Hampshire, New York, and Main...
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EFFECTS OF ACIDIC DEPOSITION ON STREAMS IN THE APPALACHIAN MOUNTAINS AND PIEDMONT REGION OF THE MID-ATLANTIC UNITED STATES |
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Streams in the Appalachian Mountain area of the Mid-Atlantic receive some of the largest acidic deposition loadings of any region of the United States. ompilation of survey data fr...
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EFFECTS OF ACIDIC PRECIPITATION ON THE NORTH AMERICAN CONTINENT |
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Since the mid 70's there has been a growing concern in the U.S. and Canada about the widespread deposition of acidic materials from the atmosphere. Acid rain is now found over most...
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EFFECTS OF ACIDIC PRECIPITATION ON THE WATER QUALITY OF STREAMS IN THE LAUREL HILL AREA, SOMERSET COUNTY, PA, 1983-1986 |
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Five headwater streams in the Laurel Hill area in southwestern Pennsylvania were investigated from September 1983 through February 1986 to determine possible effects of acidic prec...
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EFFECTS OF AGING HERBICIDE MIXTURES ON SOIL RESPIRATION AND PLANT SURVIVAL IN SOILS FROM A PESTICIDE-CONTAMINATED SITE. (R825549C045) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECTS OF AQUEOUS AL, CD, CU, FE(II), NI, AND ZN ON PB IMMOBILIZATION BY HYDROXYAPATITE |
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The effects of aqueous Al, Cd, Cu, Fe(II), Ni, or Zn on Pb immobilization by hydroxyapatite (Ca10(PO4),(OH)2) were studied. ead was removed mainly via hydroxyapatite dissolution an...
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EFFECTS OF BIOSOLIDS ON SORPTION AND DESORPTION BEHAVIOR OF CADMIUM IN BIOSOLIDS-AMENDED SOILS |
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Cadmium sorption and desorption experiments were conducted on different fractions of soils amended with different biosolids with varying chemical properties and unamended soil (con...
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EFFECTS OF CATASTROPHIC FLOODING ON HYDRIC SOILS OF EASTERN NORTH CAROLINA |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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EFFECTS OF CLIMATE, LANDUSE, AND SOILS ON NDVI DYNAMICS IN THE U.S. GREAT PLAINS. (R824993) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECTS OF CO-CONTAMINANTS ON THE DISPOSITION OF POLYCHLORINATED DIBENZO-P-DIOXINS AND POLYCHLORINATED DIBENZOFURANS IN SATURATED SOILS. (R825549C032) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECTS OF CO2 AND O3 ON WATER BALANCE FOR A PONDEROSA PINE PLANT/LITTER/SOIL SYSTEM |
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There are numerous reports on the individual effects of CO2 and O3 alone on individual plants, but very little information on the interactive effects of these pollutants, especiall...
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EFFECTS OF COAL-ASH LEACHATE ON GROUND WATER QUALITY |
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The report gives results of research to: (1) develop methodology for the field-collection of coal-ash leachate; (2) chemically characterize ash leachates from power plants using di...
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EFFECTS OF DRYING TREATMENTS ON POROSITY OF SOIL MATERIALS |
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The effects of three drying techniques on total porosity and pore size distribution of three soil materials were studied by Hg intrusion porosimetry. Some samples were dried in an ...
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EFFECTS OF ELECTROOSMOSIS ON SOIL TEMPERATURE AND HYDRAULIC HEAD: II. NUMERICAL SIMULATION |
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A numerical model to simulate the distributions of voltage, soil temperature, and hydraulic head during the field test of electroosmosis was developed. The two-dimensional governin...
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EFFECTS OF ELEVATED CO2 AND OTHER ENVIRONMENTAL STRESSES ON WESTERN CONIFER SEEDLINGS |
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The future productivity of forests will be affected by increased levels of atmospheric CO2 which will likely be associated with climate change and regional air pollutants such as O...
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EFFECTS OF ELEVATED CO2 AND TEMPERATURE ON SOIL CARBON DENSITY FRACTIONS IN A DOUGLAS FIR MESOCOSM STUDY |
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We conducted a 4-year full-factorial study of the effects of elevated atmospheric CO2 and temperature on Douglas fir seedlings growing in reconstructed native forest soils in mesoc...
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EFFECTS OF FERTILIZER ADDITION ON MICROBIAL RESPIRATION AND UPTAKE OF CARBON MONOXIDE IN A CERRADO SOIL |
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The savanna area in central Brazil (Cerrado) is undergoing rapid agricultural land use changes and these changes are often accompanied by fertilization of the land. Because fertil...
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EFFECTS OF FLUE GAS CLEANING WASTE ON GROUNDWATER QUALITY AND SOIL CHARACTERISTICS |
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Soil and water samples from several test borings and hydrological data were collected and analyzed for three flue gas cleaning sludge disposal sites in order to assess the extent o...
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EFFECTS OF MOUNTAINTOP MINING/VALLEY FILL (MTM/VF) ON FUNCTIONAL INDICATORS IN APPALACHIAN HEADWATER STREAMS |
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The objectives of this poster were 1)to evaluate the impact of MTM/VF on the functional attributes SOD, soil/sediment respiration rate, soil/sediment DEA and dissolved trace gas co...
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EFFECTS OF NUTRIENT LOADING ON BIOGEOCHEMICAL AND MICROBIAL PROCESSES IN A NEW ENGLAND SALT MARSH |
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Coastal marshes represent an important transitional zone between uplands and estuaries. One important function of marshes is to assimilate nutrient inputs from uplands, thus provid...
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EFFECTS OF ORGANIC SOLVENTS ON THE PERMEABILITY OF CLAY SOILS |
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Traditionally, water has been used as the fluid with which to measure permeability of compacted clay soils to assess their suitability for lining hazardous waste landfill and surfa...
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EFFECTS OF PH AND PHOSPHATE ON METAL DISTRIBUTION WITH EMPHASIS ON AS SPECIATION AND MOBILIZATION IN SOILS FROM A LEAD SMELTING SITE |
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Arsenic in soils from the Asarco Lead Smelter in East Helena, Montana was characterized by X-ray absorption spectroscopy (XAS). As oxidation state and geochemical speciation were ...
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EFFECTS OF PRESCRIBED FIRES ON NITROGEN FLUXES IN SAVANNA FORMATIONS OF CENTRAL BRAZIL |
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Savanna ecosystems are controlled by the interactions between water and nutrient availability. The savannas of Central Brazil (Cerrado) are the second most extensive plant formatio...
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EFFECTS OF REACTION PARAMETERS ON ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE RATE AND BY-PRODUCTS |
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Trichloroethylene (TCE) was electrochemically dechlorinated in aqueous environments using granular graphite cathode in a mixed reactor. Effects of pH, current, electrolyte type, an...
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EFFECTS OF REPEATED DROUGHTS ON SOIL MICROARTHROPOD COMMUNITIES IN THE NORTHERN CHIHUHUAN DESERT |
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Soil microarthropods were sampled in plots centered on creosotebushes(Larrea tridentata) and in plots centered on mesquite(Prosopis glandulosa) coppice dunes. Nine plots in each ar...
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EFFECTS OF SELECTED INORGANIC LEACHATES ON CLAY PERMEABILITY |
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Hydraulic conductivity test results for three field clays exposed to two inorganic chemicals are documented. The hydraulic conductivities of clays exposed to waste chemicals is an ...
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EFFECTS OF SEWAGE SLUDGE ON DI-(2-ETHYLHEXYL) PHTHALATE UPTAKE BY PLANTS |
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Di-(2-ethylhexyl) phthalate (DEHP) is a priority organic pollutant frequently found in municipal sludges. reenhouse study was conducted to determine the effects of sludge on plant ...
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EFFECTS OF SEWAGE SLUDGE ON THE CADMIUM AND ZINC CONTENT OF CROPS |
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This report evaluates the available data on the effects on plants of single and repeated additions of Cd and Zn to soils in the form of sewage sludge. The concentrations of Cd and ...
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EFFECTS OF SLUDGE IRRIGATION ON THREE PACIFIC NORTHWEST FOREST SOILS |
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A sprinkler irrigation system developed for uniform applications of anerobically digested, municipal-industrial sewage sludge initially applied up to 5.8 mt/ha/wk. Reduced infiltra...
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EFFECTS OF STREAM RESTORATION ON GROUND WATER NITRATE AT MINEBANK RUN, AN URBAN STREAM IN THE CHESAPEAKE BAY WATERSHED |
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Elevated nitrate levels in streams and ground water pose human and ecological threats. Microbial denitrification removes nitrate from ground water but requires anaerobic (saturat...
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EFFECTS OF SUCCESSION ON NITROGEN EXPORT IN THE WEST-CENTRAL CASCADES, OREGON |
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Conceptual models predict that unpolluted, aggrading forest ecosystems tightly retain available nitrogen (N) until declining productivity by mature trees and storage in detritus re...
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EFFECTS OF TREATMENTS ON SOIL-LEAD BIOAVAILABILITY: IMPLICATIONS OF IN-VITRO EXTRACTION TESTING |
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A field-scale study on the use of phosphate amendments to reduce lead bioavailabity from soil is being conducted at the Joplin site. One of the tools used to evaluate whether lead ...
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EFFECTS OF USING SEWAGE SLUDGE ON AGRICULTURAL AND DISTURBED LANDS |
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The accumulative effects of annual use of sewage sludge on composition of soils, plants, water, and animals that consume the plants is presented. Plant yields were increased and no...
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EFFECTS ON CATTLE FROM EXPOSURE TO SEWAGE SLUDGE |
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Soils, forages, and cattle grazing on a sludge disposal site were examined for trace metals and persistent organics. Soils at the disposal site had increased concentrations of Zn, ...
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EFFICIENCY OF SOIL CORE AND SOIL-PORE WATER SAMPLING SYSTEMS |
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A laboratory column and field lysimeter study were conducted to evaluate the efficiency of soil core and soil-pore water samples to detect the migration of the organic components o...
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ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES |
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Electrochemical dechlorination of TCE was conducted in a glass column using granular graphite as electrodes. A constant voltage of 15 volt was applied resulting in 60-62 mA of curr...
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ELECTROCHEMICAL DEGRADATION OF POLYCHLOROBIPHENYLS |
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Granular graphite is an ideal conductive material for electrochemical reduction technology applications in the field. Granular graphite was used to enhance the transfer of chlorina...
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ELECTROCHEMICAL DEGRADATION OF POLYCHLOROBIPHENYLS |
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Granular graphite is an ideal conductive material for electrochemical reduction technology applications in the field. Granular graphite was used to enhance the transfer of chlorina...
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ELECTROCHEMICAL DEGRADATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES: IDENTIFICATION AND QUALIFICATION OF DECHLORINATION PRODUCTS |
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TCE was successfully dechlorinated in aqueous solution using granular graphite as the cathode in a mixed electrochemical reactor. In experiments with an initial TCE concentration o...
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ELECTROCHEMICAL DEGRADATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES: IDENTIFICATION AND QUALIFICATION OF DECHLORINATION PRODUCTS |
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TCE was successfully dechlorinated in aqueous solution using granular graphite as the cathode in a mixed electrochemical reactor. In experiments with an initial TCE concentration o...
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ELECTROCHEMICAL DESIGN ASSOCIATES (FORMERLY GEOKINETICS INTERNATIONAL, INC.) LEAD RECOVERY TECHNOLOGY EVALUATION ITER |
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This report presents performance and economic data from U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation (SITE) Program evaluation of Electroch...
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ELECTROCHEMICAL TECHNIQUE FOR DETECTION OF TNT USING DISPOSABLE SCREEN-PRINTED ELECTRODES |
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Nitroaromatic and nitroamine explosives have been found in the soil and water from many government military bases due to disposal, storage and weapons testing. Run-off from conta...
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ELECTROKINETIC REMEDIATION: BASICS AND TECHNOLOGY STATUS |
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Electrokinetic soil processing is a controlled application of electrical migration and electroosmosis together with the electrolysis reactions. lectroosmosis is one of the differen...
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ELECTROKINETIC REMEDIATION: BASICS AND TECHNOLOGY STATUS |
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Electrokinetic remediation, variably named as electrochemical soil processing, electromigration, electrokinetic decontamination or electroreclamation uses electric currents to extr...
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ELECTROLYTIC DECHLORINATION OF 2-CHLOROBIPHENYL AT A PALLADIUM MODIFIED GRANULAR-GRAPHITE-PACKED ELECTRODE |
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Polychlorinated biphenyls (PCBs) and other chlorinated aromatic compounds are distributed in soils and sediments at over 400 sites in the USA. A national need exists for both in si...
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ELECTROOSMOTIC DRYING OF SLIME CONSISTENCE WASTES |
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The objective of this research is the examination of field techniques that remove water from sludge tailings produced as a waste during flotation of sulphur ore. The research was c...
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ELEVATED CO2 AND ELEVATED TEMPERATURE HAVE NO EFFECT ON DOUGLAS-FIR FINE-ROOT DYNAMICS IN NITROGEN-POOR SOIL |
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Here, we investigate fine-root production, mortality and standing crop of Douglas-fir (Pseudotsuga menziesii) seedlings exposed to elevated atmospheric CO2 and elevated air tempera...
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ELI/SBP'S UVB (VACUUM VAPORIZATION WELL) SYSTEM FOR TREATMENT OF VOC-CONTAMINATED SOILS; INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the findings of an evaluation of the Unterdruck-Verdampfer-Brunnen (UVB) technology developed by IEG Technologies (IEG) and licensed in the eastern United St...
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EMERGENCY RESPONSE EQUIPMENT TO CLEAN UP HAZARDOUS CHEMICAL RELEASES AT SPILLS AND UNCONTROLLED WASTE SITES |
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This paper reviews some of the research activities of the U.S. Environmental Protection Agency (EPA) regarding the development of emergency response equipment to control hazardous ...
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EMERGING TECHNOLOGY BULLETIN: PHOTOLYSIS/BIODEGRADATION OF PCB AND PCDD/PCDF CONTAMINATED SOILS - IT CORPORATION |
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This process is a two-stage photolytic and biological soil detoxification process that has application to treatment of soils contaminated with polychlorinated biphenyls (PCBs) and...
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EMERGING TECHNOLOGY BULLETIN: PROCESS FOR THE TREATMENT OF VOLATILE ORGANIC CARBON AND HEAVY-METAL- CONTAMINATED SOIL - INTERNATIONAL TECHNOLOGY CORPORATION |
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The batch steam distillation and
metal extraction treatment process is a two-stage system that
treats soils contaminated with organics and inorganics. This system
uses conventio...
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EMERGING TECHNOLOGY BULLETIN: REMOVAL OF PHENOL FROM AQUEOUS SOLUTIONS USING HIGH ENERGY ELECTRON BEAM IRRADIATION |
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Irradiation of aqueous solutions with high-energy electrons results in the formation of the aqueous electron, hydrogen radical, H-, and the hydroxyl radical, OH-. These reactive tr...
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EMERGING TECHNOLOGY BULLETIN: WASTE VITRIFICATION THROUGH ELECTRIC MELTING |
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The objective of vitrification technology is to convert contaminated soils, sludges, and sediments into an oxide glass, rendering them suitable for landfilling as a nonhazardous ma...
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EMERGING TECHNOLOGY PROGRAM (ETP) OF THE U.S. EPA'S SUPERFUND INNOVATIVE TECHNOLOGY EVALUATION (SITE) PROGRAM |
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The Emerging Technology Program offers a mechanism for performing joint technology development between the private sector and the U.S. Environmental Protection Agency (EPA) with th...
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EMERGING TECHNOLOGY REPORT: BENCH-SCALE TESTING OF PHOTOLYSIS, CHEMICAL OXIDATION AND BIODEGRADATION OF PCB CONTAMINATED SOILS AND PHOTOLYSIS OF TCDD CONTAMINATED SOILS |
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This report presents the results of bench-scale testing on degradation of 2,3,7,8-TCDD using W photolysis, and PCB degradation using UV photolysis, chemical oxidation and biologica...
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EMERGING TECHNOLOGY REPORT: BENCH-SCALE TESTING OF PHOTOLYSIS, CHEMICAL OXIDATION, AND BIODEGRADATION OF PCB CONTAMINATED SOIL AND PHOTOLYSIS OF TCDD CONTAMINATED SOIL |
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Bench-scale tests were conducted to investigate the feasibility of a two phase detoxification process that would have application to the treatment of soils contaminated with polych...
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EMERGING TECHNOLOGY REPORT: RECLAMATION OF LEAD FROM SUPERFUND WASTE MATERIAL USING SECONDARY LEAD SMELTERS |
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There are over 3,000 sites across the United States contaminated with lead. Techniques to remediate these sites include standard stabilization/disposal technologies, reclamation of...
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EMERGING TECHNOLOGY SUMMARY - SIMULTANEOUS DESTRUCTION OF ORGANICS AND STABILIZATION OF METALS IN SOILS |
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The Sulchem Process reacts the material being treated with elemental sulfur at elevated temperatures in an inert reactor system. Organic hydrocarbons react with the sulfur to form ...
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EMERGING TECHNOLOGY SUMMARY: INNOVATIVE METHODS FOR BIOSLURRY TREATMENT |
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The tests reported herein were conducted by IT Corporation (IT), Knoxville, TN, to investigate the feasibility of combined biological and chemical treatments to treat polycyclic ar...
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EMERGING TECHNOLOGY SUMMARY: THEORETICAL AND EXPERIMENTAL MODELING OF MULTI-SPECIES TRANSPORT IN SOILS UNDER ELECTRIC FIELDS |
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This project investigated an innovative approach for transport of inorganic species under the influence of electric fields. This process, commonly known as electrokinetics uses low...
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EMISSION OF PESTICIDES INTO THE AIR |
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During and after the application of pesticide in agriculture, a substantial fraction of the dosage may enter the atmosphere and be transported over varying distances downwind of ...
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EMISSION RATES FOR BIOGENIC NOX |
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A literature review of biogenic sources of NOx was conducted to determine their emission rates into the atmosphere. NOx are some of the products of microbial denitrification, chemi...
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EMPIRICAL MODELS OF PB AND CD PARTITIONING USING DATA FROM 13 SOILS, SEDIMENTS AND AQUIFER MATERIALS |
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Lead (Pb) and cadmium (Cd) are two of the most common toxicants found in contaminated environments. Because solubilization of these metallic elements from the solid phase can infl...
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EMPIRICAL PARTITIONING MODELS FOR PB AND CD USING DATA FROM 13 SOILS, SEDIMENTS AND AQUIFER MATERIALS |
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There is no abstract for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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EMSOFT USER'S GUIDE |
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Chemicals that readily vaporize at relatively low temperatures can migrate from contaminated soils into the atmosphere via a process called volatilization. Volatilization represent...
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ENANTIOMERIC RATIOS AS SOURCE TRACERS OF OC PESTICIDES IN GREAT LAKES AIR |
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Organochlorine (OC) pesticides were used heavily in the cornbelt regions during the 60's and 70's. Volatilization of these pesticides from agricultural soils may be a significant...
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ENGINEERING BULLETIN: COMPOSTING |
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Composting is an emerging ex situ biological technology that is potentially applicable to nonvolatile and semivolatile organic compounds (SVOCs) in soils. It has been applied to p...
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ENGINEERING BULLETIN: IN SITU SOIL FLUSHING |
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In situ soil flushing is the extraction of contaminants from the soil with water or other suitable aqueous solutions. Soil flushing is accomplished by passing the extraction fluid ...
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ENGINEERING BULLETIN: SEPARATION/CONCENTRATION TECHNOLOGY ALTERNATIVES FOR THE REMEDIATION OF PESTICIDE-CONTAMINATED SOIL |
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Pesticide contamination includes a wide variety of compounds and may result from manufacturing improper storage, handling, disposal; or agricultural processes. It can occur in soil...
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ENGINEERING BULLETIN: SOLVENT EXTRACTION |
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Solvent extraction does not destroy hazardous contaminants, but is a means of separating those contaminants from soils, sludges, and sediments, thereby reducing the volume of the h...
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ENGINEERING DESIGN CRITERIA FOR SUB-SLAB DEPRESSURIZATION SYSTEMS IN LOW-PERMEABILITY SOILS |
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The report describes the development of engineering design criteria for the successful design, installation, and operation of sub-slab depressurization systems, based on radon (Rn)...
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ENGINEERING FORUM ISSUE: CONSIDERATIONS IN DECIDING TO TREAT CONTAMINATED UNSATURATED SOILS |
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The purpose of this document is to provide assistance in deciding in situ treatment of contaminated soils is a potentially feasible remedial alternative. echnical considerations th...
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ENGINEERING ISSUE: IN SITU BIOREMEDIATION OF CONTAMINATED UNSATURATED SUBSURFACE SOILS |
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An emerging technology for the remediation of unsaturated subsurface soils involves the use of microorganisms to degrade contaminants which are present in such soils. Understanding...
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ENGINEERING ISSUE: TECHNOLOGY ALTERNATIVES FOR THE REMEDIATION OF SOIL AND SEDIMENT CONTAMINATED WITH PCBS |
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The U.S. Environmental Protection Agency (EPA) Engineering Bulletins are a series of documents that summarize the available information on selected treatment and site remediation t...
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ENHANCED SOURCE REMOVAL USING IN-SITU CHEMICAL FLUSHING |
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Dense non-aqueous phase liquids (DNAPL) have been identified as a major impediment to the cleanup of many contaminated sites. Conventional ground water remediation methods such as ...
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ENVIROBOND (TM) PROCESS ROCKY MOUNTAIN REMEDIATION SERVICES (EPA/540/MR-99/502) |
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The Rocky Mountain Remediation Services Environbond (TM) process was evaluated under the USEPA's SITE program for the ability of the process to reduce leachable lead in contaminate...
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ENVIROGARD™ PCB TEST KIT, MILLIPORE, INC. - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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The Envirogard™ polychlorinated biphenyl (PCB) immunoassay test kit rapidly analyzes for PCB concentrations in soils. Soils samples are extracted using methanol; extracts and calib...
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ENVIRONMENTAL ASSESMENT OF SOLID RESIDUES FROM FLUIDIZED-BED FUEL PROCESSING |
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The report gives results of a 2-year study of the environmental assessment of solid residues generated by fluidized-bed combustion (FBC) of coal and gasification of oil. Included a...
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ENVIRONMENTAL ASSESSMENT OF SOLID RESIDUES FROM FLUIDIZED-BED FUEL PROCESSING |
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The report gives results of the first 15 months of an environmental assessment of solid residues generated by fluidized-bed combustion (FBC) of coal and gasification of oil. Includ...
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ENVIRONMENTAL MONITORING AND ASSESSMENT PROGRAM AGROECOSYSTEM MONITORING AND RESEARCH STRATEGY |
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The monitoring program described in this document is one component of the Environmental Monitoring and Assessment Program (EMAP), a national program administered by the U.S. Enviro...
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ENVIRONMENTAL MONITORING AND ASSESSMENT PROGRAM: EMAP ARID COLORADO PLATEAU PILOT STUDY - 1992 IMPLEMENTATION PLAN |
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The 1992 Colorado Plateau Indicator Pilot Study, the first field activity for the EMAP-Arid group, is designed to evaluate several indicators of arid ecosystem condition for contin...
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ENVIRONMENTAL RESEARCH BRIEF: SPATIAL HETEROGENEITY OF GEOCHEMICAL AND HYDROLOGIC PARAMETERS AFFECTING METAL TRANSPORT IN GROUNDWATER |
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Reliable assessment of the hazards or risks arising from groundwater contamination and the design of effective means of rehabilitation of contaminated sites requires the capability...
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ENVIRONMENTAL TECHNOLOGICAL VERIFICATION REPORT - L2000 PCB/CHLORIDE ANALYZER - DEXSIL CORPORATION |
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In July 1997, the U.S. Environmental Protection Agency (EPA) conducted a demonstration of Polychlorinated biphenyl (PCB) field analytical techniques. The purpose of this demonstra...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT - ENVIROGARD PCB TEST KIT - STRATEGIC DIAGNOSTICS INC |
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In July 1997, the U.S. Environmental Protection Agency (EPA) conducted a demonstration of Polychlorinated biphenyl (PCB) field analytical techniques. The purpose of this demonstra...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, EXPLOSIVES DETECTION TECHNOLOGY, SRI INSTRUMENTS, MODEL 8610C, GAS CHROMATOGRAPH/THERMIONIC IONIZATION DETECTION |
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The SRI Model 86 1 OC gas chromatograph (GC) is a transportable instrument that can provide on-site analysis of soils for explosives. Coupling this transportable gas chromatograph ...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, PCB DETECTION TECHNOLOGY, DEXSIL CORPORATION L2000DX ANALYZER |
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The L2000DX Analyzer (dimensions: 9 x 9.5 x 4.25 in.) is a field-portable ion-specific electrode instrument, weighing approximately 5 lb 12 oz, designed to quantify concentrations ...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT: IMMUNOASSAY KIT, ENVIROLOGIX, INC., PCB IN SOIL TUBE ASSAY |
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In July 1997, the U.S. Environmental Protection Agency (EPA) conducted a demonstration of polychlorinated biphenyl (PCB) field analytical techniques. The purpose of this demonstra...
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ENZYME-BASED DETECTION OF CHLORINATED HYDROCARBONS IN WATER |
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An enzyme-based approach for detecting hazardous levels of high molecular weight chlorinated hydrocarbons in natural waters has been explored. An extensive review of the literature...
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ENZYMES FOR ENHANCING BIOREMEDIATION OF PETROLEUM-CONTAMINATED SOILS: A BRIEF REVIEW |
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During the 1950s and 1960s, hundreds of thousands of underground storage tanks (and aboveground storage tanks) containing petroleum products and hazardous chemicals were installed....
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EPA (ENVIRONMENTAL PROTECTION AGENCY) HAZARDOUS WASTE ENGINEERING RESEARCH LABORATORY'S RESEARCH PROGRAM IN SUPPORT OF SUPERFUND |
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In anticipation of the passage of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA or Superfund), the Office of Research and Development of...
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EPA COMPARES THREE SOIL-GAS SAMPLING SYSTEMS FOR VAPOR INTRUSION INVESTIGATIONS |
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This newsletter article summarizes the finding of "U.S. Environmental Protection Agency, Comparison of Geoprobe PRT, AMS GVP Soil-Gas Sampling Systems with Dedicated Vapor Probes i...
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EPA ENVIRONMENTAL TECHNOLOGY EXPERIENCE |
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THE USEPA's Environmental Technology Verification for Metal Finishing Pollution Prevention Technologies (ETV-MF) Program verifies the performance of innovative, commercial-ready te...
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EPA SITE DEMONSTRATION OF THE TERRA VAC IN SITU VACUUM EXTRACTION PROCESS IN GROVELAND, MASSACHUSETTS |
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This paper presents an EPA evaluation of the patented Terra Vac, Inc.'s in situ vacuum extraction process that was field-demonstrated on a trichloroethylene (TCE) contaminated soil...
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EPA'S ECOLOGICAL EFFECTS BRANCH: PLANNING FOR AN UNCERTAIN FUTURE |
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The seminar will address two topics: 1) a brief overview of Dr. Hammer’s professional experiences that preceded his appointment with the Environmental Protection Agency; and 2) a s...
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EPA'S MOBILE VOLUME REDUCTION UNIT FOR SOIL WASHING |
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This paper discusses the design and initial operation of the U.S. Environmental Protection Agency'S (EPA) Mobile Volume Reduction Unit (VRU) for soil washing. oil washing removes c...
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EPA'S WASTE MANAGEMENT AND SOIL TREATMENT RESEARCH |
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The mission of the EPA is to protect human health and to safeguard the natural environment - air, water, and land - upon which life depends. In order to accomplish this mission, th...
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EPA's Ongoing Green Infrastructure Research |
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Green Infrastructure is a concept originating in the United States in the mid-1990's that highlights the importance of the natural environment in decisions about land use planning....
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EQUIVALENCE OF MICROBIAL BIOMASS MEASURES BASED ON MEMBRANE LIPID AND CELL WALL COMPONENTS, ADENOSINE TRIPHOSPHATE, AND DIRECT COUNTS IN SUBSURFACE AQUIFER SEDIMENTS (JOURNAL VERSION) |
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An uncontaminated subsurface aquifer sediment contains a sparse microbial community consisting primarily of coccobacillary bacteria of relatively uniform size which can be counted ...
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ESTABLISHING A SOIL CARBON BASELINE FOR CARBON ACCOUNTING THE FORESTED SOILS OF THE UNITED STATES |
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Soils are an important global reservoir of organic carbon (C). It has been estimated that at 1500 Pg world soils hold approximately three times the amount of C held in vegetation a...
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ESTIMATES OF DOUGLAS-FIR FINE ROOT PRODUCTION AND MORTALITY FROM MINIRHIZOTRONS |
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Minirhizotrons were used to assess the influence of soil resources on fine root (diameter < 2 mm) production, mortality, and standing crop over a two-year period. Two study sites w...
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ESTIMATING DISSOLVED ORGANIC CARBON PARTITION COEFFICIENTS FOR NONIONIC ORGANIC CHEMICALS |
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A literature search was performed for dissolved organic carbon/water partition coefficients for nonionic chemicals (Kdoc) and Kdoc data was taken from more than sixty references. T...
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ESTIMATING EXPOSURE TO DIOXIN-LIKE COMPOUNDS |
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The primary purpose of this document is to present procedures for conducting site-specific exposure assessments to dioxin-like compounds. In addition, information is provided on th...
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ESTIMATING PESTICIDE SORPTION COEFFICIENTS FOR SOILS AND SEDIMENTS |
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The organic carbon-referenced method of representing sorption of pesticides (K sub oc approach), including the assumptions inherent in the method and the implications of these assu...
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ESTIMATING ROOT RESPIRATION IN SPRUCE AND BEECH: DECREASES IN SOIL RESPIRATION FOLLOWING GIRDLING |
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A study was undertaken to follow seasonal fluxes of CO2 from soil and to estimate the contribution of autotrophic (root + mycorrhizal) to total soil respiration (SR) in a mixed sta...
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ESTIMATING THE GLOBAL POTENTIAL OF FOREST AND AGROFOREST MANAGEMENT PRACTICES TO SEQUESTER CARBON |
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Forests play a prominent role in the global C cycle. ccupying one-third of the earth's land area, forest vegetation nd soils contain about 60% of the total terrestrial C. Forest bi...
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ESTIMATING THE LIKELIHOOD OF OCCURRENCE OF SELECTED PESTICIDES AND NUTRIENTS EXCEEDING SPECIFIC CONCENTRATIONS IN COASTAL PLAIN STREAMS BASED ON LANDSCAPE CHARACTERISTICS |
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The occurrence of selected pesticides and nutrient compounds in nontidal headwater streams of the Mid-Atlantic Coastal Plain (North Carolina through New Jersey) during winter and s...
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ESTIMATION OF INFILTRATION RATE IN THE VADOSE ZONE: APPLICATION OF SELECTED MATHEMATICAL MODELS - VOLUME II |
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Movement of water into and through the vadose zone is of great importance to the assessment of contaminant fate and transport, agricultural management, and natural resource protect...
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ESTIMATION OF INFILTRATION RATE IN THE VADOSE ZONE: COMPILATION OF SIMPLE MATHEMATICAL MODELS - VOLUME I |
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The unsaturated or vadose zone provides a complex system for the simulation of water movement and contaminant transport and fate. Numerous models are available for performing simu...
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ESTIMATION OF PARAMETERS FOR MODELING THE BEHAVIOR OF SELECTED PESTICIDES AND ORTHOPHOSPHATE |
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A 3-year laboratory study was conducted to determine sorption and degradation of selected pesticides as well as sorption of orthophosphorus on several U.S. agricultural soils. The ...
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EVALUATING CUMULATIVE EFFECTS OF DISTURBANCE ON THE HYDROLOGIC FUNCTION OF BOGS, FENS, AND MIRES |
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Few quantitative studies have been done on the hydrology of fens, bogs and mires, and consequently any predictions of the cumulative impacts of disturbances on their hydrologic fun...
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EVALUATING SWINE DRYLOT RUNOFF IMPACT ON A COASTAL PLAIN STREAM |
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The objectives of this study were to establish sampling methodologies for intensive monitoring of the environmental impact of animal feedlot runoff on in-stream water quality and t...
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EVALUATING TERRESTRIAL FOOD CHAIN IMPACTS NEAR SOURCES OF DIOXIN RELEASE IN U.S. EPA RISK ASSESSMENTS |
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Prior to the mid 1980s, assessments of health impacts from dioxin-like compounds released into the air only evaluated the inhalation exposure pathway. In the latter 1980s it was ...
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EVALUATING THE ROLE OF HABITAT QUALITY ON ESTABLISHMENT OF GM AGROSTIS STOLONIFERA IN NON-AGRONOMIC ENVIRONMENTS |
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The initial flowering of experimental fields of the GM wind-pollinated plant Agrostis stolonifera L. that expressed an engineered gene (CP4 EPSPS) for resistance to glyphosa...
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EVALUATING THE WATER QUALITY EFFECTIVENESS OF WATERSHED-SCALE SOURCE WATER PROTECTION PROGRAMS |
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The US EPA Office of Research and Development, the Ohio River Valley Water Sanitation Commission (ORSANCO) and the Upper Big Walnut Creek Quality Partnership created a collaborativ...
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EVALUATION OF A SOIL AMENDMENT PROCESS DEMONSTRATION FOR REDUCING THE BIOAVAILABILITY OF LEAD |
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The USEPA evaluated an in situ application of a soil amendment process at a residential site that was contaminated with lead. The goal of the evaluation was to determine if the so...
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EVALUATION OF ALTERNATIVE REFERENCE TOXICANTS FOR USE IN THE EARTHWORM TOXICITY TEST |
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The use of the 14-d earthworm toxicity test to aid in the evaluation of the ecological impact of contaminated soils is becoming increasingly widespread. However,the method is in ne...
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EVALUATION OF ALTERNATIVE TREATMENT TECHNOLOGIES FOR CERCLA SOILS AND DEBRIS (SUMMARY OF PHASE I AND PHASE II) |
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This study was conducted in two phases. n the first phase, a synthetic soil matrix was prepared as a theoretical composite of Superfund soils nationwide. n the second phase, soils ...
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EVALUATION OF EXTRACTION AND SPECTROSCOPIC METHODS FOR PB SPECIATION IN AN AMENDED SOIL |
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Immobilization of pyromorphite (Pbs(PO4hCI) via P amendments to Pb contaminated soils is proving to be a viable method of remediation. However, the issue of ascertaining the amount...
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EVALUATION OF IRRIGATION METHODS FOR SALINITY CONTROL IN GRAND VALLEY |
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Irrigation return flows in the Upper Colorado River Basin carry large salt loads as a result of contact with the saline soils and the marine derived geologic substratum. The Grand ...
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EVALUATION OF LEAD AVAILABILITY IN AMENDED SOILS MONITORED OVER A LONG-TERM TIME PERIOD |
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Two different soil amendment processes were evaluated for reducing lead availability from a contaminated soil at a demonstration study site, to reduce potential public health and e...
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EVALUATION OF ROTARY KILN INCINERATOR OPERATION AT LOW TO MODERATE TEMPERATURE CONDITIONS VOLUME 1. TECHNICAL RESULTS |
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A test program was performed at the Environmental Protection Agency Incineration Research Facility to study the effectiveness of incineration at low-to-moderate temperatures in dec...
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EVALUATION OF SOIL VENTING APPLICATION |
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The ability of soil venting to inexpensively remove large amounts of volatile organic compounds (VOCs) from contaminated soils is well established. However, the time required using...
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EVALUATION OF SOIL WASHING TECHNOLOGY: RESULTS OF BENCH SCALE EXPERIMENTS ON PETROLEUM FUELS CONTAMINATED SOILS |
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The U.S. Environmental Protection Agency through its Risk Reduction Engineering Laboratory's Releases Control Branch has undertaken research and development efforts to address the ...
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EVALUATION OF SOIL WASHING TECHNOLOGY: RESULTS OF BENCH SCALE EXPERIMENTS ON PETROLEUM FUELS CONTAMINATED SOILS - EPA/600/S2-91/023 |
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The U.S. Environmental Protection Agency (EPA) through its Risk Reduction Engineering Laboratory's Release Control Branch has undertaken research and development efforts to addres...
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EVALUATION OF SOLIDIFICATION/STABILIZATION AS A BEST DEMONSTRATED AVAILABLE TECHNOLOGY FOR CONTAMINATED SOILS |
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This project involved the evaluation of solidification/stabilization technology as a BDAT for contaminated soil. Three binding agents were used on four different synthetically cont...
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EVALUATION OF SOLIDIFICATION/STABILIZATION AS A BEST DEMONSTRATED AVAILABLE TECHNOLOGY FOR CONTAMINATED SOILS |
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This project involved the evaluation of solidification/stabilization technology as a BDAT for contaminated soil. Three binding agents were used on four different synthetically cont...
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EVALUATION OF SOLIDIFICATION/STABILIZATION FOR TREATING HAZADOUS WASTE IN THE UNITED STATES |
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In hazardous waste management, solidification/stabilization (S/S) is a term normally used to designate technology employing additives to alter hazardous waste to reduce the mobilit...
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EVALUATION OF SORPTION MODELS IN THE SIMULATION OF NAPHTHALENE TRANSPORT THROUGH SATURATED SOILS |
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To show the effect of sorption model selection. he one-dimensional transport of naphthalene in two saturated soils was simulated using numerical models, which included the processe...
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EVALUATION OF SOXTEC EXTRACTION PROCEDURE FOR EXTRACTING ORGANIC COMPOUNDS FROM SOILS AND SEDIMENTS |
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The U.S. EPA conducted a study to evaluate the Soxtec extraction of 29 target compounds from spiked sandy clay loam and clay loam. he study also compared two solvent mixtures and m...
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EVALUATION OF SUBSURFACE CONDITIONS AT REFINERY LAND TREATMENT SITES |
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Soil cores were collected at 5 different sites that had been used for land treating refinery oily waste. Core samples were also collected from similar but untreated areas adjacent ...
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EVALUATION OF TERRESTRIAL INDICATORS FOR USE IN ECOLOGICAL ASSESSMENTS AT HAZARDOUS WASTES SITES |
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The target audience for this compendium includes regional project managers and biological technical assistance groups. he methods summarized are grouped according to their potentia...
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EVALUATION OF TERRESTRIAL MICROCOSMS FOR DETECTION, FATE, AND SURVIVAL ANALYSIS OF GENETICALLY ENGINEERED MICROORGANISMS AND THEIR RECOMBINANT GENETIC MATERIAL |
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Terrestrial microcosms have been used for several decades by researcher to evaluate the fate and transport of xenobiotics in the environment; however, very little information is av...
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EVALUATION OF THE BIOGENESIS SOIL WASHING TECHNOLOGY |
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The BioGenesis Enterprises, Inc. (BioGenesis) soil washing technology was demonstrated as part of the US Environmental Protection Agency's (EPA) Superfund Innovative Technology Eva...
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EVALUATION OF THE DEGRADATIVE CAPABILITIES OF SOILS FROM PESTICIDE-CONTAMINATED SITES: INFLUENCE OF TWO PLANT SPECIES ON THE DEGRADATION OF AGED RESIDUES. (R825549C045) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EVALUATION OF THE ROLE OF SEA SALT IMPUTS IN THE LONG-TERM ACIDIFICATION OF COASTAL NEW ENGLAND LAKES (JOURNAL VERSION) |
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Input of neutral salt (NaCl) from sea spray, followed by Na(sup +)-H(sup +) exchange within the soil exchange complex, has been proposed as an important factor in surface water aci...
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EVALUATION OF UNSATURATED/VADOSE ZONE MODELS FOR SUPERFUND SITES |
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Mathematical models of water and chemical movement in soils are being used as decision aids for defining groundwater protection practices for Superfund sites. Numerous transport mo...
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EVALUATION OF UNSATURATED/VADOSE ZONE MODELS FOR SUPERFUND SITES |
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Mathematical models of water and chemical movement in soils are being used as decision aids for defining groundwater protection practices for Superfund sites. umerous transport mod...
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EVIDENCE OF ENHANCED WEATHERING IN SOILS EXPOSED TO ELEVATED CARBON DIOXIDE CONCENTRATIONS. (U915625) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EXAMINING THE TEMPORAL VARIABILITY OF AMMONIA AND NITRIC OXIDE EMISSIONS FROM AGRICULTURAL PROCESSES |
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This paper examines the temporal variability of airborne emissions of ammonia from livestock operations and fertilizer application and nitric oxide from soils. In the United State...
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EXPERIMENTAL ACIDIFICATION CAUSES SOIL BASE-CATION DEPLETION AT THE BEAR BROOK WATERSHED IN MAINE |
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There is concern that changes in atmospheric deposition, climate, or land use have altered the biogeochemistry of forests causing soil base-cation depletion, particularly Ca. The B...
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EXPERIMENTAL EVIDENCE AGAINST DIFFUSION CONTROL OF HG EVASION FROM SOILS. (R827622E02) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EXPERIMENTAL INDUCEMENT OF NITROGEN SATURATION AT THE WATERSHED SCALE |
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Atmospheric nitrogen deposition to forested ecosystems in excess of vegetative demand may lead to a condition of terrestrial "nitrogen saturation". he subsequent increases in N exp...
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EXPLORING THE BIOTRANSFORMATION POTENTIAL OF FLUOROTELOMER ALCOHOL-BASED POLYMER FORMULATIONS DURING AEROBIC BIOLOGICAL WASTEWATER TREATMENT |
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Fluorotelomer alcohols have been widely used over the past 50 years in surface protection products for paper, packaging, textile, and carpet goods; in industrial surfactant mixture...
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EXPOSURE ASSESSMENT MODELING FOR ALDICARB IN FLORIDA |
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A modeling study was performed to assess aldicarb concentrations in drinking water wells in the vicinity of citrus groves in Florida. Areas in the citrus growing region were identi...
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EXPOSURE FACTORS HANDBOOK (DRAFT) 1996 |
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This handbook provided a summary of the available statistical data on various factors used in assessing human exposure.
Volume I, General Factors, includes an introduction ...
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EXTENDING AQUATIC CLASSIFICATION TO THE LANDSCAPE SCALE HYDROLOGY-BASED STRATEGIES |
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Aquatic classification of single water bodies (lakes, wetlands, estuaries) is often based on geologic origin, while stream classification has relied on multiple factors related to ...
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EXTENSION OF MULTI-RESIDUE METHODOLOGY. I. DETERMINING MULTICLASS PESTICIDE RESIDUES IN SOIL BY GAS CHROMATOGRAPHY. II. DYNAMIC FLUOROGENIC LABELLING DETECTOR FOR CARBAMATES |
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A multi-residue procedure was devised for the extraction, cleanup and determination of forty seven pesticides in fortified soil samples. Most of the compounds were determined by ga...
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EXTRACTION METHODS FOR RECOVERY OF VOCS FROM FORTIFIED, DRY SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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EXTRACTION METHODS FOR RECOVERY OF VOLATILE ORGANIC COMPOUNDS FROM FORTIFIED DRY SOILS |
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Recovery of 8 volatile organic compounds (VOCs) from dry soils, each fortified at 800 ng/g soil, was studied in relation to the extraction method and time of extraction. Extraction...
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EXTRACTION OF ORGANIC POLLUTANTS FROM SOLID SAMPLES USING MICROWAVE ENERGY |
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This study, which is part of an ongoing U.S. EPA research program, carried out by the Environmental Monitoring Systems Laboratory-Las Vegas, addresses new sample preparation techni...
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EXTRACTION OF PENTACHLOROPHENOL (PCP) FROM SOILS USING ENVIRONMENTALLY BENIGN ACID SOLUTIONS |
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The presence of organic contaminants like PCP in soil is a major environmental concern. Various remediation methods have been used of which soil washing is a common procedure. Ma...
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EXTRACTION, RECOVERY, AND BIOSTABILITY OF EDTA FOR REMEDIATION OF HEAVY METAL-CONTAMINATED SOIL. (R825549C052) |
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Chelation removal of heavy metals from contaminated soil is seen as a viable remediation technique. A useful chelating agent should be strong, reusable, and biostable during met...
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EXTRAPOLATING PHOTOLYSIS RATES FROM THE LABORATORY TO THE ENVIRONMENT |
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The importance of environmental photolysis of pesticides and other xenobiotics has been realized in the last decade and methods for assessing these processes are continually being ...
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Effectiveness of Restored Wetlands for the Treatment of Agricultural Runoff (Report) |
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Throughout the Delmarva Peninsula drainage activities that commenced during colonial times and intensified during the 20th century have resulted in the creation of extensive ditch ...
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Emerging Technology Summary. ACID EXTRACTION TREATMENT SYSTEM FOR TREATMENT OF METAL CONTAMINATED SOILS |
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The Acid Extraction Treatment System (AETS) is intended to reduce the concentrations and/or teachability of heavy metals in contaminated soils so the soil can be returned to the si...
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Examination of Below-Ground Structure and Soil Respiration Rates of Stable and Deteriorating Salt Marshes in Jamaica Bay (NY) |
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CAT scan imaging is currently being used to examine below-ground peat and root structure in cores collected from salt marshes of Jamaica Bay, part of the Gateway National Recreatio...
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FACTORS AFFECTING BIOAVAILABILITY OF CADMIUM |
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A project was undertaken to examine reactions of metals with soils and soluble organics and to characterize plant uptake by cadmium (Cd). The project addressed three components of ...
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FACTORS AFFECTING THE LONG-TERM RESPONSE OF SURFACE WATERS TO ACIDIC DEPOSITION: STATE-OF-THE-SCIENCE |
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Recent intensive study of the causes of surface water acidification has led to numerous hypothesized controlling mechanisms. Among these are the salt-effect reduction of alkalinity...
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FACTORS AFFECTING TRACE METAL MOBILITY IN SUBSURFACE SOILS |
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Field and laboratory studies were conducted to examine factors affecting metal movement in subsurface materials to groundwater and how these factors interact. Subsoil pH as with su...
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FACTORS IN GEOTROPOSPHERIC PARTICLE-GAS TRANSPORT OF SEMIVOLATILE ORGANIC COMPOUNDS |
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Semivolatile organic compounds (SVOCs) can exist in solid, liquid, or gas phases under ambient environmental conditions. The geotropospheric transport of SVOCs varies according to ...
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FACTORS INFLUENCING THE VOLATILIZATION OF MERCURY FROM SOIL |
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Mercury volatilization from soils amended to 1 ppm mercury with mercuric nitrate ceased within 1 week after application. During the first week, 20% of the applied mercury was lost ...
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FATE AND BIOAVAILABILITY OF ARSENIC IN ORGANO-ARSENICAL PESTICIDE APPLIED SOILS. PART-I. INCUBATION STUDY. (R830842) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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FATE AND EFFECTS OF PHOSPHORUS ADDITIONS IN SOILS UNDER N2-FIXING RED ALDER |
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Soil phosphorus (P) dynamics are controlled by the interaction of geochemical, biochemical and biological processes, and changing species composition or management may alter the re...
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FATE AND EXPOSURE MODELING IN TERRESTRIAL ECOSYSTEMS: A PROCESS APPROACH |
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Pathways for exposure of birds to pesticides include soil, water, air, soil-dwelling organisms, and insects. rocess approach to avian exposure calculates transport and transformati...
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FATE AND POTENTIAL EFFECTS OF TRACE ELEMENTS: ISSUES IN CO-UTILIZATION OF BY-PRODUCTS |
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Starting with the earliest records, we find that soils have been altered by man's activities and have been the receptors (directly or indirectly) for most, if not all, of his disca...
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FATE OF ORGANIC POLLUTANTS IN A WASTEWATER LAND TREATMENT SYSTEM USING LAGOON IMPOUNDMENT AND SPRAY IRRIGATION |
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Muskegon County Wastewater Management System (MCWMS) is one of the largest facilities of its kind treating on the average of 125 thousand cubic meters of wastewater by extended aer...
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FATE OF PAH COMPOUNDS IN TWO SOIL TYPES: INFLUENCE OF VOLATILIZATION, ABIOTIC LOSS AND BIOLOGICAL ACTIVITY |
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The fate of 14 polycyclic aromatic hydrocarbon (PAH) compounds was evaluated with regard to interphase transfer potential and mechanisms of treatment in soil under unsaturated cond...
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FATE OF SELECTED TOXIC COMPOUNDS UNDER CONTROLLED REDOX POTENTIAL AND PH CONDITIONS IN SOIL AND SEDIMENT-WATER SYSTEMS |
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A study was conducted to determine the effects of pH and redox potential conditions on the degradation of selected synthetic organics. Also, the effects of these physicochemical pa...
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FATTY ACID STABLE ISOTOPE INDICATORS OF MICROBIAL CARBON SOURCE IN TROPICAL SOILS |
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The soil microbial community plays an important role in tropical ecosystem functioning because of its importance in the soil organic matter (SOM) cycle. We have measured the stabl...
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FEASIBILITY AND APPROACH FOR MAPPING RADON POTENTIALS IN FLORIDA |
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The report gives results of an analysis of the feasibility and approach for developing statewide maps of radon potentials in Florida. he maps would provide a geographic basis for i...
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FEASIBILITY AND APPROACH FOR MAPPING RADON POTENTIALS IN FLORIDA |
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The report gives results of an analysis of the feasibility and approach for developing statewide maps of radon potentials in Florida. he maps would provide a geographic basis for i...
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FEASIBILITY OF ELECTROKINETIC SOIL REMEDIATION IN HORIZONTAL LASAGNA CELLS |
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An integrated soil remediation technology called Lasagna has been developed that combines electrokinetics with treatment zones for use in low permeability soils where the rates of ...
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FEASIBILITY OF HYDRAULIC FRACTURING OF SOILS TO IMPROVE REMEDIAL ACTIONS |
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Hydraulic fracturing, a technique commonly used to increase the yields of oil wells, could improve the effectiveness of several methods of in situ
remediation. This project consi...
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FEASIBILITY OF HYDRAULIC FRACTURING OF SOILS TO IMPROVE REMEDIAL ACTIONS |
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Hydraulic fracturing, a method of increasing fluid flow within the subsurface, should improve the effectiveness of several remedial techniques, including pump and treat, vapor extr...
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FERTILIZER AND PESTICIDE MOVEMENT FROM CITRUS GROVES IN FLORIDA FLATWOOD SOILS |
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Concentrations and discharge amounts of NO3-N, PO4-P, 2,4-D herbicide, terbacil herbicide, and chlorobenzilate acaricide were determined in surface and subsurface drainage waters f...
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FIBER OPTIC FLUOROIMMUNOSENSOR FOR THE DETECTION OF POLYCHLORINATED BIPHENYLS |
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There currently exists a critical and growing need for cost-effective, real-time, and in situ methods for detection of environmental pollutants such as polychlorinated biphenyls (P...
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FIBER OPTIC MULTICHANNEL LASER SPECTROMETER SYSTEM FOR REMOTE FLUORESCENCE DETECTION IN SOILS |
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NO ABSTRACT PROVIDED...
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FIELD AND LABORATORY EVALUATION OF PETROLEUM LAND TREATMENT SYSTEM CLOSURE |
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The objectives of the research were to measure and interpret the surface soil changes in relation to the quality of runoff water from petroleum refinery land treatment (LT) systems...
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FIELD APPLICATIONS OF THE KPEG PROCESS FOR TREATING CHLORINATED WASTES |
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The APEG chemical dechlorination process was identified at the Franklin Research Center in Philadelphia, Pennsylvania, in 1978 for the dechlorination of polychlorinated biphenyls (...
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FIELD ASSESSMENT OF SITE CLOSURE, BOONE COUNTY, KENTUCKY |
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The current project was undertaken before the scheduled site closure to obtain information useful to designers of future landfill facilities. Information was developed on cover soi...
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FIELD DEMONSTRATION OF THE LINDE OXYGEN COMBUSTION SYSTEM ON THE EPA MOBILE INCINERATOR |
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This paper summarizes the various system performance tests and the long-term operating experience of the LINDE(r) Oxygen Combustion System (OCS) installed on the U.S. Environmental...
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FIELD EVALUATION OF IN-SITU TREATMENTS TO REDUCE SOIL-LEAD BIOAVAILABILITY: INTRODUCTION & BACKGROUND |
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The In-place Inactivation and Natural Ecological Restoration Technologies (IINERT) Soil-Metals Action Team was established in 11/95 as one of several Action Teams under the USEPA R...
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FIELD EVALUATION OF TERRA THERM IN SITU THERMAL DESTRUCTION (ISTD) TREATMENT OF HEXACHLOROCYCLOPENTADIENE |
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This report summarizes the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation (SITE) Program evaluation of the In Situ Thermal Destruction (ISTD)...
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FIELD INVESTIGATION OF CONTAMINANT LOSS FROM CHEMICALLY STABILIZED INDUSTRIAL SLUDGES |
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Four sites where stabilized industrial wastes had been disposed were examined to determine the effects of stabilized wastes on surrounding soils and groundwater. All areas selected...
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FIELD INVESTIGATION OF EFFECTIVENESS OF SOIL VAPOR EXTRACTION TECHNOLOGY |
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A research project was undertaken to study the effectiveness of soil vapor extraction (SVE), and emerging technology for remediation of soils contaminated with volatile organic com...
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FIELD OPERATIONS AND QUALITY ASSURANCE/QUALITY CONTROL FOR DIRECT/DELAYED RESPONSE PROJECT SOIL MAPPING ACTIVITIES IN THE NORTHEAST REGION |
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The Direct/Delayed Response Project is a three-level program designed to address the concern over potential acidification of surface waters by atmospheric deposition within the Uni...
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FIELD OPERATIONS AND QUALITY ASSURANCE/QUALITY CONTROL FOR DIRECT/DELAYED RESPONSE PROJECT SOIL MAPPING ACTIVITIES IN THE SOUTHERN BLUE RIDGE REGION |
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The Direct/Delayed Response Project is a three-level program designed to address concern over potential acidification of surface waters by atmospheric deposition within the United ...
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FIELD POCKET GUIDE: DESCRIPTION AND SAMPLING OF CONTAMINATED SOILS |
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This guide describes many field methods and procedures that can be used for (1) preliminary site reconnaissance, (2) detailed site and contaminant characterization/sampling for tra...
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FIELD STUDIES OF LINER INSTALLATION METHODS AT LANDFILLS AND SURFACE IMPOUNDMENTS |
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This study investigates procedures for subgrade preparation and liner placement during the construction of lined surface impoundments and landfills. Lining materials studied includ...
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FIELD STUDY OF ARSENIC REMOVAL FROM GROUNDWATER BY ZEROVALENT IRON |
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Contamination of ground-water resources by arsenic is a widespread environmental problem; consequently, there is a need for developments and improvements of remedial technologies t...
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FINITE-ELEMENT ANALYSIS OF MULTIPHASE IMMISCIBLE FLOW THROUGH SOILS |
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A finite-element model is developed for multiphase flow through soil involving three immiscible fluids: namely, air, water, and a nonaqueous phase liquid (NAPL). A variational meth...
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FISH PHYSIOLOGY, TOXICOLOGY AND WATER QUALITY MANAGEMENT: PROCEEDINGS OF 3RD BIENNIAL INTERNATIONAL SYMPOSIUM, NANJING, PRC |
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Scientists from four countries presented papers at the Third Biennial International Symposium on Fish Physiology, Toxicology and Water Quality Management, which was held on the cam...
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FLUORESCENT IN SITU HYBRIDIZATION AND MICROAUTORADIOGRAPHY APPLIED TO ECOPHYSIOLOGY IN SOIL |
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Soil microbial communities perform many important processes, including nutrient cycling, plant-microorganism interactions, and degradation of xenobiotics. The study of microbial co...
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FOLIAR N RESPONSE OF PONDEROSA PINE SEEDLINGS TO ELEVATED CO2 AND O3 |
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Interactions between needle N status and exposure to combined CO2 and O3 stresses were studied in Pinus ponderosa seedlings. The seedlings were grown for three years (April 1998 t...
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FOOD CHAIN TRANSFER AND BIOAVAILABILITY OF CD AND OTHER ELEMENTS IN PLANTS GROWN ON BIOSOLIDS AMENDED SOILS |
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Application of biosolids, livestock manures, compost, and many byproducts add heavy metals to soil. Exposure of humans, livestock and wildlife to these added heavy metals continues...
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FORCED AIR VENTILATION FOR REMEDIATION OF UNSATURATED SOILS CONTAMINATED BY VOC |
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Parameters which were expected to control the removal process of VOCs from contaminated soil during the SVE operation were studied by means of numerical simulations and laboratory ...
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FOREST ECOSYSTEM CARBON AND NITROGEN ACCUMULATION DURING THE FIRST CENTURY AFTER AGRICULTURAL ABANDONMENT |
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Forests of the northeastern U.S. are expected to serve as a substantial sink for carbon (C) and nitrogen (N) as they recover from extensive clearing and agriculture. However, ques...
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FOREST ECOSYSTEM RECOVERY IN THE SOUTHEAST US: SOIL ECOLOGY AS AN ESSENTIAL COMPONENT OF ECOSYSTEM MANAGEMENT |
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The forestry industry in the southeastern United States relies upon soils that are highly eroded and depleted of their original organic matter and nutrient content. Pro-active land...
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FOREST SOIL CARBON SEQUESTRATION: ACCOUNTING FOR THIS VITAL ECOSYSTEM SERVICE |
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Forests play a crucial role in supplying many goods and services that society depends upon on a daily basis including water supply, production of oxygen, soil protection, building ...
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FOREST SOIL INFORMATION FOR ENVIRONMENTAL ASSESSMENT IN THE WESTERN OREGON CASCADES BASED ON LANDTYPE MAPPING |
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Forest health monitoring and other environmental assessments require information on the spatial distribution of basic soil physical and chemical properties. Traditional soil surve...
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FOREST SOIL RESPONSE TO ACID AND SALT ADDITIONS OF SULFATE III. SOLUBILIZATION AND COMPOSITION OF DISSOLVED ORGANIC CARBON |
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A year-long experiment, using reconstructed spodosol and intact alfisol soil columns, was conducted to examine the effects of various simulated throughfall solutions on soil C dyna...
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FOREST SOIL RESPONSE TO ACID AND SALT ADDITIONS OF SULFATE: SULFUR CONSTITUENTS AND NET RETENTION |
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We used soil columns constructed from a Maine Spodosol and Illinois Alfisol to investigate the retention of SO4 2- added as Na2SO4 or H2SO4. oth organic and inorganic S pools were ...
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FORMATION OF CHLOROPYROMORPHITE IN A LEAD-CONTAMINATED SOIL AMENDED WITH HYDROXYAPATITE |
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To evaluate conversion of soil Pb to pyromorphite, a Pb contaminated soil collected adjacent to a historical smelter was reacted with hydroxyapatite in a traditional incubation exp...
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FORUM ON INNOVATIVE HAZARDOUS WASTE TREATMENT TECHNOLOGIES DOMESTIC AND INTERNATIONAL - 2nd Philadelphia, Pennsylania, MAY 14-16, 1990 - Technical Papers (EPA/540/2-90/010) |
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As a result of the high level of interest in innovative hazardous waste control technologies, U.S. EPA's Office of Solid Waste and Emergency Response (OSWER) and Risk Reduction En...
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FORUM ON INNOVATIVE HAZARDOUS WASTE TREATMENT TECHNOLOGIES: DOMESTIC AND INTERNATIONAL |
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As a result of the high level of interest in innovative hazardous waste control technologies, U.S. EPA's Office of Solid Waste and Emergency Response (OSWER) and Risk Reduction Eng...
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FORUM ON INNOVATIVE HAZARDOUS WASTE TREATMENT TECHNOLOGIES: DOMESTIC AND INTERNATIONAL. Third, Dallas, Texas, June 11-13, 1991 - TECHNICAL PAPERS |
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On June 11 -13,1991, the U.S. Environmental Protection Agency's Technology Innovation Office and Risk Reduction Engineering Laboratory hosted an international conference in Dallas,...
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FOURTH FORUM ON INNOVATIVE HAZARDOUS WASTE TREATMENT TECHNOLOGIES: DOMESTIC AND INTERNATIONAL - TECHNICAL PAPERS |
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On November 17-19, 1992, the U.S. Environmental Protection Agency's Technology Innovation Office and Risk Reduction Engineering Laboratory, Department of Energy, Corps of Engineers...
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FROM THE FOREST TO THE SEA AND BACK AGAIN: MARINE INPUTS AND TERRESTRIAL BIOGEOCHEMISTRY IN THE PACIFIC NORTHWEST |
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Most models of watershed biogeochemistry include the movement of materials from land to rivers and eventually the ocean. Few conceptual views, however, acknowledge the influence o...
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FROM THE SEA TO THE FOREST: SEA SALT DEPOSITION ALTERS SOIL PROCESSES IN COASTAL FORESTS |
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Most models of watershed biogeochemistry include the movement of materials from land to rivers and eventually the ocean. Few conceptual views, however, acknowledge the influence o...
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FUSION METHOD FOR THE MEASUREMENT OF PLUTONIUM IN SOILS: SINGLE-LABORATORY EVALUATION AND INTERLABORATORY COLLABORATIVE TEST |
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This report presents the results of a single-laboratory evaluation and an interlaboratory collaborative test of a method for measuring plutonium in soil. The method employs potassi...
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GAS CHROMATOGRAPHIC DETERMINATION OF AVIATION GASOLINE AND JP-4 JET FUEL IN SUBSURFACE CORE SAMPLES (JOURNAL VERSION) |
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A new gas chromatographic procedure for quantifying levels of aviation gasoline (avgas) and JP-4 jet fuel contamination in soils is described. The fuel is extracted from a small qu...
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GAS DIFFUSIVITY IN UNDISTURBED VOLCANIC ASH SOILS: TEST OF SOIL-WATER-CHARACTERISTIC-BASED PREDICTION MODELS. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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GENERAL MODEL FOR N2O AND N-2 GAS EMISSIONS FROM SOILS DUE TO DENITRIFICATION. (R824993) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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GENERALIZED MODEL FOR NOX AND N2O EMISSIONS FROM SOILS. (R824993) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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GENETIC EXCHANGE BETWEEN BACILLUS THURINGIENSIS SUBSP. KURSTAKI AND INDIGENOUS BACTERIA IN SOILS OF SARDINIA. (R826107) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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GENOTOXICITY OF BIOREMEDIATED SOILS FROM THE REILLY TARSITE, ST. LOUIS PARK, MINNESOTA |
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An in vitro approach was used to measure the genotoxicity of creosote-contaminated soil before and after four bioremediation processes. The soil was taken from the Reilly Tar site,...
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GEOELECTRICAL STRATIGRAPHY AND ANALYSIS OF A HYDROCARBON IMPACTED AQUIFER |
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A recently proposed geoelectrical model for hydrocarbon impacted sites predicts anomalously high conductivities coincident with aged contaminated zones. These high conductivities a...
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GEOMORPHIC CONTROLS ON CARBON AND NITROGEN PROCESSING IN A DEGRADED URBAN STREAM |
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Elevated nitrate levels in streams and groundwater pose human and ecological threats. Microbial denitrification removes nitrate from groundwater but requires anaerobic (saturated)...
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GEOTECH, INC., COLD TOP EX-SITU VITRIFICATION SYSTEM; INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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A Superfund Innovative Technology Evaluation (SITE) technology demonstration was conducted in February and March 1997 to evaluate the Geotech Development Corporation (Geotech) Cold...
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GEOTHERMAL ENVIRONMENTAL ASSESSMENT BASELINE STUDY: VEGETATION AND SOILS OF THE ROOSEVELT HOT SPRINGS GEOTHERMAL RESOURCE AREA |
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Identification and elemental concentrations of indigenous soil and plant systems found on the Roosevelt Hot Spring KGRA are described. Twenty-three different soils and five separat...
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GEOTHERMAL ENVIRONMENTAL ASSESSMENT: BEHAVIOR OF SELECTED GEOTHERMAL BRINE CONTAMINANTS IN PLANTS AND SOILS |
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The behavior of selected elements found in the Roosevelt Hot Springs KGRA geothermal fluids was investigated in both plant and soil systems. The kinetics of these potential environ...
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GRACE BIOREMEDIATION TECHNOLOGIES - DARAMEND BIOREMEDIATION TECHNOLOGY. INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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Grace Dearborn's DARAMEND™ Bioremediation Technology was developed to treat soils/sediment contaminated with organic contaminants using solid-phase organic amendments. The am...
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GREAT SMOKY MOUNTAIN PRELIMINARY STUDY FOR BIOSPHERE RESERVE POLLUTANT MONITORING |
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A presampling of physical and biological media at preselected locations on the Great Smoky Mountains Biosphere Reserve was completed. The media collected, which included air, water...
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GREENHOUSE STUDY ON ARSENIC SPECIATION AND BIOAVAILABILITY IN TWO PESTICIDE-CONTAMINATED SOILS OF FLORIDA: PRELIMINARY RESULTS. (R830842) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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GROSS N TRANSFORMATION RATES AND MICROBIAL POPULATION DYNAMICS UNDER FIELD AND LABORATORY CONDITIONS FROM TWO DIFFERENT ECOSYSTEMS |
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Change of soil and environmental conditions can influence microbial activities and subsequent soil nitrogen (N) transformation processes. The objective of this study was to compar...
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GROSS NITROGEN PROCESS RATES IN TEMPERATE FOREST SOILS EXHIBITING SYMPTOMS OF NITROGEN SATURATION. (R827674) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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GROUND WATER ISSUE: NATURAL ATTENUATION OF HEXA- VALENT CHROMIUM IN GROUND WATER AND SOILS |
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In this paper, what is known about the transformation of chromium in the subsurface is explored. This is an attempt to identify conditions where it is most likely to occur, and des...
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GROUND WATER ISSUE: STEAM INJECTION FOR SOIL AND AQUIFER REMEDIATION |
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The purpose of this Issue Paper is to provide to those involved in assessing remediation technologies for specific sites basic technical information on the use of steam injection f...
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GROUND WATER QUALITY SURROUNDING LAKE TEXOMA DURING DROUGHT CONDITIONS |
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Water quality data from 55 producing monitoring wells during drought conditions surrounding Lake Texoma, located on the border of Oklahoma and Texas, was compared to assess the inf...
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GROUNDWATER AND SOIL REMEDIATION USING ELECTRICAL FIELD |
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Enhancements of contaminants removal and degradation in low permeability soils by electrical fields are achieved by the processes of electrical heating, electrokinetics, and electr...
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GROWTH AND REPRODUCTION OF THE EARTHWORM 'EISENIA FETIDA' AFTER EXPOSURE TO SUBLETHAL CONCENTRATIONS OF METALS |
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The use of land for the treatment and disposal of various wastes has resulted in a desire for more information concerning the effects of these materials on the soil ecosystem. Eart...
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GUIDANCE MANUAL ON OVERTOPPING CONTROL TECHNIQUES FOR HAZARDOUS WASTE IMPOUNDMENTS |
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The overall objective of the project was to provide guidance for selecting cost-effective interim management methods to control overtopping of impoundments, pits, ponds, or lagoons...
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GUIDE TO CURRENT LITERATURE ON EXPOSURE FACTORS |
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In an effort to keep the Exposure Factors Handbook up-to-date, the National Center for Environ...
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GUIDE TO SITE AND SOIL DESCRIPTION FOR HAZARDOUS WASTE SITE CHARACTERIZATION VOLUME 1: METALS |
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This guide is intended to assist field personnel who must identify, describe, and interpret site and soil characteristics of hazardous waste sites where metals contamination is sus...
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GUIDELINES FOR PREPARING ENVIRONMENTAL AND WASTE SAMPLES FOR MUTAGENICITY (AMES) TESTING: INTERIM PROCEDURES AND PANEL MEETING PROCEEDINGS |
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The User's Guide presents review papers and interim protocols for the preparation of waste and environmental samples for testing with the Salmonella reverse-mutation assay (Ames te...
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Geomorphic stream restoration as an approach for reducing nutrients in degraded urban watersheds |
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Elevated nitrate levels in streams and groundwater pose human and ecological threats. Stream restoration may improve the nutrient removal capacity of streams, yet few studies have...
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HABITAT DISTRIBUTION MODELS FOR 37 VERTEBRATE SPECIES IN T HE MOJAVE DESERT ECOREGION OF NEVADA, ARIZONA, AND UTAH |
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Thirty-seven covered species in the Clark County Multi-Species Habitat Conservation Plan (MSHCP) were previously modeled through the Southwest Regional Gap Analysis Project (SWReGA...
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HANDBOOK ON IN SITU TREATMENT OF HAZARDOUS WASTE- CONTAMINATED SOILS |
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This handbook comprises an update of Volume1 of the 1984 USEPA document entitled "Review of In-Place Treatment Techniques for Contaminated Surface Soils." The purpose of this handb...
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HAZARD ASSESSMENT OF METALS AND METAL COMPOUNDS IN TERRESTRIAL SYSTEMS |
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Metal accumulation in soil can result in adverse effects on soil biota, and may concentrate metals in food chains to levels detrimental to humans and wildlife. A SETAC Pellston Wo...
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HEALTH ASSESSMENT DOCUMENT FOR NICKEL AND NICKEL COMPOUNDS. FINAL REPORT |
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The predominant atmospheric forms of nickel are as sulfate, oxides, and complex oxides. Nickel also occurs in ambient and drinking waters and soils. Routes of intake for man are in...
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HEALTH ASSESSMENT DOCUMENT FOR NICKEL. FINAL REPORT |
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Nickel is found in nature as a component of silicate, sulfide, or, occasionally arsenide ores. It is a valuable mineral commodity because of its resistance to corrosion. Uses for n...
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HEAT AND MASS TRANSFER IN THE VADOSE ZONE WITH PLANT ROOTS. (R825414) |
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AbstractThe vadose zone is the intermediate medium between the atmosphere and groundwater. The modeling of the processes taking place in the vadose zone needs different...
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HEAVY METAL CONTAMINATION IN THE TAIMYR PENINSULA, SIBERIAN ARCTIC |
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The Taimyr Peninsula is directly north of the world's largest heavy metal smelting complex (Norilsk, Russia). Despite this proximity, there has been little research to examine the ...
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HEAVY METALS AND TOXIC ORGANIC POLLUTANTS IN MSW-COMPOSTS: RESEARCH RESULTS ON PHYTOAVAILABILITY, BIOAVAILABILITY, FATE, ETC. |
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This paper is a review and interpretation of research which as been conducted to determine the fate transport, and potential effects of heavy metals and toxic organic compounds in ...
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HIGH SPATIAL RESOLUTION SATELLITE REMOTE SENSING FOR PLANNING AND LOCATING ANIMAL FEEDING OPERATIONS |
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Surface runoff of animal waste and its infiltration into groundwater can pose a number of risks to water quality mainly because of the amount of animal manure and wastewater th...
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HIGHER PLANT ACCUMULATION OF ORGANIC POLLUTANTS FROM SOILS |
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The purpose of this work was to determine the effect Of higher plants on sites polluted by organic chemicals and to discuss the potential of using plants as an in situ cleanup trea...
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HIGHLY SENSITIVE DIOXIN IMMUNOASSAY AND ITS APPLICATIONS TO SOIL AND BIOTA SAMPLES. (R825433) |
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Tetrachlorodibenzo-p-dioxin (TCDD) is a well-known highly toxic compound that is present in nearly all components of the global ecosystem, including air, soil, sediment, ...
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HNU-HANBY PCP IMMUNOASSAY TEST KIT - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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The HNU-Hanby pentachlorophenol (PCP) test kit rapidly analyzes for PCP in soil samples. The test kit can only detect those PCP carriers that contain aromatic compounds. The test k...
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HOMOGENEOUS LAND TYPES OF THE CONTERMINOUS UNITED STATES EAST OF THE ROCKY MOUNTAINS |
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The safe disposal of hazardous waste, the understanding of acid rain related effects, and the attainability of high water quality are but a few examples needing regional considerat...
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HORIZONTAL CONFIGURATION OF THE LASAGNA (TM) TREATMENT TECHNOLOGY USER GUIDE |
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This report is a user's guide that discusses the technology and operations unique to the installation and operation of the horizontal configuration of the Lasagna? integrated soil ...
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HORIZONTAL CONFIGURATION OF THE LASAGNA TREATMENT TECHNOLOGY - USER GUIDE |
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This report is a user's guide that discusses the technology and operations unique to the installation and operation of the horizontal configuration of the LasagnaTM integrated soil...
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HORIZONTAL LASAGNA TO BIOREMEDIATE TCE |
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Removal of TCE from these tight clay soils has been technically difficult and expensive. However, the LASAGNATM technique allows movement of the TCE into treatment zones for biode...
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HORIZONTAL LASAGNA^TM TO BIOREMEDIATE TCE |
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Removal of TCE from these tight clay soils has been technically difficult and expensive. However, the LASAGNA technique allows movement of the TCE into treatment zones for biodegra...
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HUMAN ENTERIC VIRUS SURVIVAL IN SOIL FOLLOWING IRRIGATION WITH SEWAGE PLANT EFFLUENTS |
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The wastewater treatment processes at Kerrville and Uvalde, Texas, were evaluated in terms of their efficacy in reducing human enteric viruses. (Data on the reduction of TOC, BOD5,...
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HUMATE-ENHANCED REMEDIATION OF PETROLEUM CONTAMINATED SURFACE SOILS: COMBINED SORPTION AND BIODEGRADATION PROCESSES. (R827015C012) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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HUMIC SUBSTANCES AND CONTAMINANT TRANSPORT |
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Humic substances are widely distributed in the environment, occurring in soils and waters. hey are the products of microbial degradation of dead vegetable and animal matter. hey ac...
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HVAC SYSTEMS AS A TOOL IN CONTROLLING INDOOR AIR QUALITY: A LITERATURE REVIEW |
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The report gives results of a review of literature on the use of heating, ventilating, and air-conditioning (HVAC) systems to control indoor air quality (IAQ). Although significant...
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HYDRAULIC REDISTRIBUTION IN A DOUGLAS-FIR FOREST: LESSONS FROM SYSTEM MANIPULATIONS |
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Hydraulic redistribution (HR) has been shown to slow drying of surface soils during drought in Pacific Northwest forests, but the controls governing this process and its importance...
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HYDRAULIC REDISTRIBUTION IN THE PACIFIC NORTHWEST: TWEAKING THE SYSTEM |
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Hydraulic redistribution (HR) has recently been documented in Pacific Northwest forests, but the controls governing this process and its importance to shallow-rooted species are po...
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HYDRAULIC REDISTRIBUTION OF SOIL WATER: ECOSYSTEM IMPLICATIONS FOR PACIFIC NORTHWEST FORESTS |
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The physical process of hydraulic redistribution (HR) is driven by competing soil, tree and atmospheric water potential gradients, and may delay severe water stress for roots and o...
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HYDROCARBON VAPOR DIFFUSION IN INTACT CORE SLEEVES |
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The diffusion of 2,2,4-trimethylpentane (TMP) and 2,2,5-trimethylhexane (TMH) vapors out of residually contaminated sandy soil from the U.S. Environmental Protection Agency (EPA) f...
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HYDROGEN OXIDATION IN SOILS AS A POSSIBLE TOXIC-EFFECTS INDICATOR |
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Efficient soil bioassays are needed in a screening array to determine the toxicities of industrial products and wastes. Hydrogen consumption is a common soil microbiological proces...
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HYDROGEN PEROXIDE DECAY IN WATERS WITH SUSPENDED SOILS: EVIDENCE FOR BIOLOGICALLY MEDIATED PROCESSES |
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Hydrogen peroxide decay studies have been conducted in suspensions of several well-characterized soils and in natural water samples. inetic and product studies indicated that the d...
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HYDROGEOLOGIC FRAMEWORK, GROUND-WATER GEOCHEMISTRY, AND ASSESSMENT OF NITROGEN YIELD FROM BASE FLOW IN TWO AGRICULTURAL WATERSHEDS, KENT COUNTY, MARYLAND |
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Hydrostratigraphic and geochemical data collected in two adjacent watersheds on the Delmarva Peninsula, in Kent County, Maryland, indicate that shallow subsurface stratigraphy is a...
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HYDROLOGIC CONDITIONS AFFECTING THE TROPOSPHERIC FLUX OF VINCLOZOLIN AND ITS DEGRADATION PRODUCTS |
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A laboratory chamber was used to determine hydrologic conditions that lead to the tropospheric flux of a suspected anti-androgenic dicarboximide fungicide, vinclozolin (3-(3,5-di...
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HYDROLOGIC EVALUATION OF LANDFILL PERFORMANCE (HELP) MODEL: USER'S GUIDE FOR VERSION 3 |
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The Hydrologic Evaluation of Landfill Performance (HELP) computer program is a quasi-two-dimensional hydrologic model of water movement across, into, through and out of landfills. ...
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HYDROLOGIC FLOWPATHS INFLUENCE INORGANIC AND ORGANIC NUTRIENT LEACHING IN A FOREST SOIL |
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Hydrologic pathways through soil affect element leaching by determining the relative importance of biogeochemical processes such as sorption and decomposition. We used stable hydro...
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HYDROLOGY OF FORESTED WETLANDS IN NORTHEASTERN NEW JERSEY, AN URBAN/SUBURBAN REGION |
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The hydrology of wetlands located in urban landscapes is likely to be affected by the numerous effects of urban development on the water cycle. Although urbanization is affecting a...
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HYDROLYTIC TRANSFORMATIONS OF ORGANIC CHEMICALS IN THE ENVIRONMENT |
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In the environment, hydrolysis reactions can be mediated biologically or occur via abiotic processes. or biotic hydrolysis reactions, the rate of hydrolysis often is proportional t...
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IDENTIFICATION AND COMPILATION OF UNSATURATED/VADOSE ZONE MODELS |
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The present report contains the result of research and information processing activities supporting evaluation of the capabilities of various unsaturated zone flow and transport mo...
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IDENTIFICATION OF IRON PHASES IN BIOSOLIDS VIA MOSSBAUER SPECTROSCOPY |
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Continuous debate regarding inorganic and organic phases in biosolids as prominent sorbents of metals has yielded limited definitive data. We have demonstrated with X-ray absorptio...
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IDENTIFICATION OF PREDOMINANT ENVIRONMENTAL FACTORS STRUCTURING STREAM MACROINVERTEBRATE COMMUNITIES WITHIN A LARGE AGRICULTURAL CATCHMENT |
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Patterns of macroinvertebrate community composition were examined in streams within a 40,000-km2 catchment in central Michigan, USA, to identify the major environmental gradients i...
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IITRI RADIO FREQUENCY HEATING TECHNOLOGY - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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IITRI's patented in situ RFH technology enhances the removal of volatile and semi-volatile organics by soil vapor extraction (SVE). Electromagnetic energy heats the soil resulting ...
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IMAGING SPECTROSCOPY FOR DETERMINING RANGELAND STRESSORS TO WESTERN WATERSHEDS |
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The Environmental Protection Agency is developing rangeland ecological indicators in twelve western states using advanced remote sensing techniques. Fine spectral resolution (hyper...
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IMAGING SPECTROSCOPY FOR DETERMINING RANGELAND STRESSORS TO WESTERN WATERSHEDS |
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The Environmental Protection Agency is developing rangeland ecological indicators in eleven western states using advanced remote sensing systems. Fine spectral resolution (hyperspe...
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IMMOBILIZATION OF HEAVY METALS IN SOILS AND WATER BY A MANGANESE MINERAL |
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A synthesized Mn mineral used in study on adsorption of heavy metals from water has shown a great adsorption capability for Pb, Cu, Cd, Co, Ni and Zn on this mineral over a pH rang...
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IMPACTS OF ACIDIC DEPOSITION: CONTEXT AND CASE STUDIES OF FOREST SOILS IN THE SOUTHEASTERN U.S. |
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The authors designed their assessment to include both the basic foundation needed by non-experts and the detailed information needed by experts. Their assessment includes backgroun...
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IMPACTS OF AGING ON IN VIVO AND IN VITRO MEASUREMENTS OF SOIL-BOUND POLYCYCLIC AROMATIC HYDROCARBON AVAILABILITY |
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Ingestion of contaminated soil is an exposure pathway at approximately one-half of the Superfund sites in the United States. This study was designed to evaluate the impacts of agin...
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IMPACTS OF LAND USE CHANGE AND FIRE ON NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE IN SOILS OF THE CERRADO IN CENTRAL BRAZIL |
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The Brazilian cerrado is experiencing rapid land use changes that are often accompanied by fire. Here we report initial studies of the effects of fire and land use change on the co...
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IMPACTS OF MARINE AEROSOLS ON SURFACE WATER CHEMISTRY AT BEAR BROOK WATERSHED, MAINE USA |
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The East Bear catchment at Bear Brook Watershed, Maine receives moderate (for the eastern U.S.) amounts of Cl- in wet and dry deposition. In 1989, Cl- in precipitation ranged from ...
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IMPLICATION OF BIOSOLIDS ON ADSORPTION AND DESORPTION OF CD IN SOILS |
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Adsorption isotherms for soils from long-term biosolids-field experiments and their inorganic fractions were obtained by equilibration of the samples with cadmium nitrate. The cadm...
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IMPLICATIONS OF BIOSOLIDS/COMPOST UTILIZATION ON THE RISK OF SOIL METALS |
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This presentation summarizes the current work on the fundamental changes in soil mineralogical accomplished by additions of biosolids and P to the system which results in changes i...
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IMPLICATIONS OF THE CALCIUM-ALUMINUM EXCHANGE SYSTEM FOR THE EFFECT OF ACID PRECIPITATION ON SOILS |
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Calcium-aluminum exchange isotherms were generated for three common ion exchange equilibrium equations, and their implications relative to the probable effects of acid rainfall are...
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IMPROVED FLOTATION TECHNIQUE FOR MICROSCOPY OF 'IN SITU' SOIL AND SEDIMENT MICROORGANISMS |
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An improved flotation method for microscopical examination of in situ soil and sediment microorganisms was developed. Microbial cells were released into gel-like flotation films th...
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IMPROVED RISK ASSESSMENT AND REMEDIATION OF SOIL METALS BASED ON BIOAVAILABILITY MEASUREMENTS |
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Heavy metals in soils can comprise risk through plant uptake or soil ingestion. Recent research results and progress in understandings of risks and methods for soil metal remediati...
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IN SITU BIO TRANSFORMATION OF MERCURY-CONTAMINATED GROUNDWATER IN KAZAKHSTAN UTILIZING NATIVE BACTERIA |
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Several regions in the Republic of Kazakhstan and throughout the former USSR are contaminated with mercury resulting from industrial releases. Our studies conducted under the ISTC ...
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IN SITU ABIOTIC DETOXIFICATION AND IMMOBILIZATION OF HEXAVALENT CHROMIUM IN THE CAPILLARY FRINGE ZONE |
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Detailed site characterization data from the former electroplating shop at the U.S. Coast Guard Air Support Center, Elizabeth City, North Carolina suggested that the elevated Cr(VI...
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IN SITU AND EX SITU BIODEGRADATION TECHNOLOGIES FOR REMEDIATION OF CONTAMINATED SITES [ENGINEERING ISSUE) |
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Bioremediation is a grouping of technologies that use microbiota (typically, heterotrophic bacteria and fungi) to degrade or transform hazardous contaminants to materials such as c...
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IN SITU AND SOIL DECONTAMINATION BY RADIO FREQUENCY HEATING |
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In situ radio frequency heating is performed by applying electromagnetic energy in the radio frequency band to an array of electrodes placed in bore holes drilled through the conta...
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IN SITU BIOREMEDIATION OF CONTAMINATED UNSATURATED SUBSURFACE SOILS |
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An emerging technology for the remediation of unsaturated subsurface soils involves the use of microorganisms to degrade contaminants which are present in such soils. nderstanding ...
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IN SITU BIOVENTING: TWO USEPA AND AIR FORCE SPONSORED FIELD STUDIES |
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Bioventing is the process of delivering oxygen by forced air movement through organically contaminated unsaturated soils in order to stimulate in situ biodegradation in an otherwis...
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IN SITU LEAD IMMOBILIZATION BY APATITE |
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Lead contamination is of environmental concern due to its effect on human health. he purpose of this study was to develop a technology to immobilize Pb in situ in contaminated soil...
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IN SITU LEAD IMMOBILIZATION BY APATITE |
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Lead contamination is of environmental concern due to its effect on human health. The purpose of this study was to develop a technology to immobilize Pb in situ in contami...
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IN SITU OXIDATION FIELD PILOT OF 1,4-DIOXANE AT THE COOPER DRUM SUPERFUND SITE |
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1,4-Dioxane, a solvent in paints, varnishes, lacquers, cosmetics, deodorants, cleaning and detergent preparations fluids, has attracted a lot of notice recently because its chemica...
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IN VIVO SYNCHROTRON ANALYSIS OF THALLIUM IN IBERIS INTERMEDIA |
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Thallium is a metal of great toxicological concern and its prevalence in the natural environment has steadily increased as a result of manufacturing and combustion practices. Due t...
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IN VIVO SYNCHROTRON ANALYSIS OF THALLIUM IN IBERIS INTERMEDIA |
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Thallium is a metal of great toxicological concern and its prevalence in the natural environment has steadily increased as a result of manufacturing and combustion practices. Due t...
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IN VIVO SYNCHROTRON INVESTIGATION OF THALLIUM HYPERACCUMULATION - I |
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Thallium (TI) is a metal of great toxicological concern and its prevalence in the natural environment has steadily increased as a result of manufacturing and combustion practices. ...
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IN VIVO SYNCHROTRON STUDY OF THALLIUM SPECIATION AND COMPARTMENTATION IN IBERIS INTERMEDIA |
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Thallium (TI) is a metal of great toxicological concern and its prevalence in the natural environment has steadily increased as a result of manufacturing and combustion practices. ...
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IN-SITU REDUCTION OF CHROMATE-CONTAMINATED SOILS AND SEDIMENTS BY SODIUM DITHIONITE: A FIELD-SCALE STUDY |
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A chrome-plating shop had been the source of discharges of acidic chromium wastes into the soils and groundwater beneath the shop at the USCG Support Center near Elizabeth City, NC...
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IN-SITU REDUCTION OF CHROMIUM-CONTAMINATED GROUNDWATER, SOILS, AND SEDIMENTS BY SODIUM DITHIONITE |
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Laboratory studies were conducted to characterize the extent of chromium contamination in the groundwater and underlying soils and sediments of a chrome-plating shop at the USCG ...
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IN-SITU REMEDIATION OF CHROMIUM CONTAMINATED SOILS AND GROUND WATER |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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IN-SITU REMEDIATION OF CHROMIUM- CONTAMINATED SOILS AND SEDIMENTS USING SODIUM DITHIONITE: SYMPOSIUM/CONFERENCE |
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SYMPOS/CONF NRMRL-ADA-01163
Paul*, C.J., Khan*, F.A., and Puls*, R.W. In-Situ Remediation of Chromium-Contaminated Soils and Sediment...
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IN-SITU REMEDIATION OF CHROMIUM-CONTAMINATED SOILS AND SEDIMENTS |
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The objectives of this study were to characterize the extent of total chromium and Cr(VI)contamination in the underlying soils and sediments of a chrome-plating shop at the USCG Su...
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IN-SITU REMEDIATION OF CHROMIUM-CONTAMINATED SOILS AND SEDIMENTS USING SODIUM DITHIONITE |
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Soil cores were collected from beneath an old chrome plating shop at the USCG Support Center near Elizabeth City, NC in order to determine the extent of chromium contamination in t...
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IN-SITU REMEDIATION OF CHROMIUM-CONTAMINATED SOILS AND SEDIMENTS USING SODIUM DITHIONITE |
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Soil cores were collected from beneath an old chrome plating shop at the USCG Support Center near Elizabeth City, NC in order to determine the extent of chromium contamination in t...
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IN-SITU STABILIZATION/SOLIDIFICATION OF PCB-CONTAMINATED SOIL |
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An evaluation was performed of the International Waste Technologies (IWT) HWT-20 additive and the Geo-Con, Inc. deep-soil-mixing equipment for an in situ stabilization/solidificati...
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IN-SITU THERMAL REMEDIATION: MECHANISMS, PRINCIPLES, AND CASE STUDIES |
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Since the early 1990's, thermal methods of enhanced oil recovery have been adapted for the remediation of soils and groundwater. Steam injection and electrical resistance heating ...
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IN-SITU TREATMENT OF CHROMIUM SOURCE AREA USING REDOX MANIPULATION |
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Sodium dithionite was used to treat a chromium source zone in soils beneath an old chrome plating shop. The sodium dithionite was injected as a buffered solution into the soils to ...
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IN-SITU TREATMENT OF HAZARDOUS WASTE CONTAMINATED SOILS |
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Techniques were investigated for in-situ treatment of hazardous wastes that could be applied to contaminated soils. Included were chemical treatment methods, biological treatment, ...
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IN-VIVO SYNCHROTRON ANALYSIS OF THALLIUM IN IBERIS INTERMEDIA |
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Thallium (TI) is a metal of great toxicological concern and its prevalence in the natural environment has steadily increased as a result of manufacturing and combustion practices. ...
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INCINERATION TREATMENT OF ARSENIC-CONTAMINATED SOIL |
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An incineration test program was conducted at the US Environmental Protection Agency's Incineration Research Facility to evaluate the potential of incineration as a treatment optio...
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INCREASE IN THE BIOAVAILABILITY OF AGED PHENANTHRENE IN SOILS BY COMPETITIVE DISPLACEMENT WITH PYRENE. (R825959) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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INDICATORS OF NITRATE LEACHING LOSS UNDER DIFFERENT LAND USE OF CLAYEY AND SANDY SOILS IN SOUTHEASTERN OKLAHOMA |
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Evidence of increasing nitrate (NO3-) leaching losses from soils under various land use systems has elevated the interest and need to find better land managem...
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INDOOR AIR CONCENTRATION UNIT CONVERSIONS |
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Migration of volatile chemicals from the subsurface into overlying buildings is called vapor intrusion (VI). Volatile organic chemicals in contaminated soils or groundwater can em...
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INDOOR AIR SAMPLING, SUB-SLAB VAPOR SAMPLING, AND SLAB AIR PERMEABILITY TESTING AT THE RAYMARK SITE |
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By 2005, U.S. EPA and its state, tribal and local partners must assess, reduce, and/or control the risk to human health and the environment at more than 374,000 contaminated Superf...
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INDOOR AIR SAMPLING, SUB-SLAB VAPOR SAMPLING, AND SLAB AIR-PERMEABILITY TESTING AT THE RAYMARK SITE |
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By 2005, U.S. EPA and its state, tribal and local partners must assess, reduce, and/or control the risk to human health and the environment at more than 374,000 contaminated Superf...
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INDOOR AIR VAPOR INTRUSION SEMINAR |
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This seminar is sponsored by the ORD in collaboration with the Office of Solid Waste and Emergency Response. The goal of this seminar is to present information and guidance to eval...
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INDOOR AIR VAPOR INTRUSION SEMINAR INTRODUCTION |
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This seminar is sponsored by the ORD in collaboration with the Office of Solid Waste and Emergency Response. The goal of this seminar is to present information and guidance to eval...
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INFERENCES ABOUT SOLUTE TRANSPORT IN MACROPOROUS FOREST SOILS FROM TIME SERIES MODELS |
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Solutes can move along macropores and other preferred flow channels in forest soils when input rates at the surface are high enough. n natural systems, the actual flow paths are, t...
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INFILTRATION ON MOUNTAIN SLOPES: A COMPARISON OF THREE ENVIRONMENTS. (R825157) |
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Water is well established as a major driver of the geomorphic change that eventually reduces mountains to lower relief landscapes. Nonetheless, within the altitudinal limits of ...
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INFILTRATION THROUGH DISTURBED URBAN SOILS |
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Prior research by Pitt (1987) examined runoff losses from paved and roofed surfaces in urban areas and showed significant losses at these surfaces during the small and moderate siz...
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INFILTRATION THROUGH DISTURBED URBAN SOILS AND COMPOST-AMENDED SOIL EFFECTS OF RUNOFF QUALITY AND QUANTITY |
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This project examined a common, but poorly understood, problem associated with land development, namely the modifications made to soil structure and the associated reduced rainfall...
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INFLUENCE OF AGING AND PH ON DISSOLUTION KINETICS AND STABILITY OF PHROMORPHITE |
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In-situ, immobilization of metal contaminates in soil systems shows great potential as a cost-effective and environmemtally sound remediation technique. Pb contaminated soils are ...
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INFLUENCE OF AGING ON PYROMORPHITE FORMATION AND DISSOLUTION |
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Published literature has clearly demonstrated that the reaction of a lead (Pb) source as either Pb-minerals (angelesite, cerrusite, or galena), goethite adsorbed lead, Pb-contamina...
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INFLUENCE OF BISOLUTE COMPETITION ON THE DESORPTION KINETICS OF POLYCYCLIC AROMATIC HYDROCARBONS IN SOIL. (R825959) |
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The dual-mode (partition/hole-filling) model of soil organic matter (SOM) as
a heterogeneous polymerlike sorbent of hydrophobic compounds predicts that a
competing solut...
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INFLUENCE OF ENVIRONMENTAL CHANGES ON DEGRADATION OF CHIRAL POLLUTANTS IN SOILS |
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Numerous anthropogenic chemicals of environmental concern- including some phenoxy acid herbicides, organophosphorus insecticides, polychlorinated biphenyls, phthalates, freon subst...
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INFLUENCE OF HUMIC SUBSTANCES ON PHOTOLYSIS OF NITROAROMATIC COMPOUNDS IN AQUEOUS SYSTEMS |
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Results are reported for kinetic studies of the photolysis of 19 nitroaromatic compounds in water. The results indicate that dissolved humic substances in natural waters enhance th...
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INFLUENCE OF LOCAL AND LANDSCAPE FACTORS ON SEDIMENT TRANSPORT IN LOW-ORDER LAKE SUPERIOR WATERSHEDS |
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Bedload and suspended sediment samples were collected from 48 second and third order Lake Superior tributaries during snowmelt in 1998 and 1999. Additional suspended sediment sampl...
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INFLUENCE OF MINERAL FORM, MATRIX CONCENTRATION AND PH ON IN-VITRO EXTRACTABILITY |
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Due to extensive resources required to conduct bioavailability studies, there is a veritable need for a laboratory in-vitro extraction procedure that yields a strong correlation to...
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INFLUENCE OF ORGANIC COSOLVENTS ON SORPTION OF HYDROPHOBIC ORGANIC CHEMICALS BY SOILS |
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Sorption of anthracene and two herbicides (diuron and atrazine) by soils from aqueous solutions and binary solvent mixtures consisting of methanol-water and acetone-water was measu...
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INFLUENCE OF ORGANIC COSOLVENTS ON THE SORPTION KINETICS OF HYDROPHOBIC ORGANIC CHEMICALS |
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A quantitative examination of the kinetics of sorption of hydrophobic organic chemicals by soils from mixed solvents reveals that the reverse sorption rate constant (K2) increases ...
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INFLUENCE OF THE SPATIAL DISTRIBUTION OF VEGETATION AND SOILS ON THE PREDICTION OF CUMULUS CONVECTIVE RAINFALL. (R824993) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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INFLUENCE OF TRICKLE AND SURFACE IRRIGATION ON RETURN FLOW QUALITY |
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A field plot study was conducted to determine the effects of controlled surface irrigation and trickle irrigation on the quality and quantity of irrigation return flow. The surface...
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INITIAL PHASE OPTIMIZATION FOR BIOREMEDIATION OF MUNITION COMPOUND-CONTAMINATED SOILS |
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We examined the bioremediation of soils contaminated with the munition compounds 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triazine, and octahydro-1, 3,5,7-tetran...
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INNOVATIONS IN SOIL SAMPLING AND DATA ANALYSIS |
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Successful research outcomes from the VOC in soils work will provide the Agency with methods and techniques that provide the accurate VOC concentrations so that decisions related t...
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INNOVATIVE MEASURES FOR SUBSURFACE CHROMIUM REMEDIATION: SOURCE ZONE, CONCENTRATED PLUME, AND DILUTE PLUME (EPA/600/S-97/005) |
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This environmental research brief reports on innovative measures for addressing 1) the source zone soils, 2) the concentrated portion of the ground-water plume, and 3) the dilute p...
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INNOVATIVE OPERATIONAL TREATMENT TECHNOLOGIES FOR APPLICATION TO SUPERFUND SITES (9 CASE STUDIES) |
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Nine case studies are presented in a report that was designed to identify and obtain operational data from ongoing and completed remediation efforts. he case studies are presented ...
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INNOVATIVE TECHNOLOGY FOR RECYCLING OF MANURE PHOSPHORUS WITH RAPID AMORPHOUS PHOSPHATE PRECIPITATION |
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Phosphorus (P) recovery from liquid swine manure is an attractive technology when soils in the farm are saturated with P and on-farm land application is not an option. A technology...
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INNOVATIVE TECHNOLOGY VERIFICATION REPORT XRF TECHNOLOGIES FOR MEASURING TRACE ELEMENTS IN SOIL AND SEDIMENT NITON XLT700 SERIES XRF ANALYZER |
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The Niton XLt 700 Series (XLt) XRF Services x-ray fluorescence (XRF) analyzer was demonstrated under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology ...
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INNOVATIVE TECHNOLOGY VERIFICATION REPORT XRF TECHNOLOGIES FOR MEASURING TRACE ELEMENTS IN SOIL AND SEDIMENT OXFORD ED2000 XRF ANALYZER |
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The Oxford ED2000 x-ray fluorescence (XRF) analyzer was demonstrated under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation (SITE) Program....
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INNOVATIVE TECHNOLOGY VERIFICATION REPORT XRF TECHNOLOGIES FOR MEASURING TRACE ELEMENTS IN SOIL AND SEDIMENT RONTEC PICOTAX XRF ANALYZER |
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The Rontec PicoTAX x-ray fluorescence (XRF) analyzer was demonstrated under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation (SITE) Program...
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INSECTICIDAL TOXIN FROM BACILLUS THURINGIENSIS IS RELEASED FROM ROOTS OF TRANSGENIC BT CORN IN VITRO AND IN SITU. (R826107) |
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AbstractThe insecticidal toxin encoded by the cry1Ab gene from Bacillus thuringiensis was released in root exudates from transgenic Bt corn during ...
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INTEGRATED LAND-USE SYSTEMS: ASSESSMENT OF PROMISING AGROFOREST AND ALTERNATIVE LAND-USE PRACTICES TO ENHANCE CARBON CONSERVATION AND SEQUESTRATION |
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Degraded or sub-standard soils and marginal lands occupy a significant proportion of boreal, temperate and tropical biomes. anagement of these lands with a wide range of existing, ...
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INTEGRATING DETAILED SOIL SURVEY AND LANDTYPE MAPPING FOR WATERSHED SCALE ASSESSMENTS IN THE WESTERN OREGON CASCADE MOUNTAINS |
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Although the Western Oregon Cascades is one of the most intensely managed and economically important forest regions in North America, a lack of detailed soil information has hinder...
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INTERACTION OF CLIMATE AND LAND USE IN FUTURE TERRESTRIAL CARBON STORAGE AND RELEASE |
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The processes controlling total carbon (C) storage and release from the terrestrial biosphere are still poorly quantified. e conclude from analysis of paleodata and climate biome m...
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INTERACTIONS BETWEEN FLUORESCENT PSEUDOMONADS AND VA MYCORRHIZAL FUNGI |
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Cucumber seeds were treated with rifampin-resistant derivatives of Pseudomonas puntida (A12, N1R or R-20) or P. fluorescens (2-79 or 3871) and planted in soils with and without add...
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INTERACTIVE EFFECTS OF OZONE DEPLETION AND CLIMATE CHANGE ON BIOGEOCHEMICAL CYCLES |
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The effects of ozone depletion on global biogeochemical cycles, via increased UV-B radiation at the Earth's surface, have continued to be documented over the past 4 years. In this ...
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INTERFERENCES, LIMITATIONS AND AN IMPROVEMENT IN THE EXTRACTION AND ASSESSMENT OF CELLULASE ACTIVITY IN SOIL |
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A ractical modification of a reducing-sugar method to estimate oil (carboxymethyl) cellulase activity is described and used to compare three non-sterile soils. he original method i...
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INTERIM PROTOCOL FOR THE AUTOMATED ANALYSIS OF SEMIVOLATILE ORGANIC COMPOUNDS BY GAS CHROMATOGRAPHY/FOURIER TRANSFORM INFRARED (GC/FT-IR) SPECTROMETRY |
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The application of gas chromatography/Fourier transform infrared (GC/FT-IR) data to regulatory decisions requires the availability of validated analytical protocols. Such protocols...
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INTERIM PROTOCOL FOR THE AUTOMATED ANALYSIS OF SEMIVOLATILE ORGANIC COMPOUNDS BY GAS CHROMATOGRAPHY/FOURIER TRANSFORM INFRARED (GC/FT-IR) SPECTROMETRY (JOURNAL VERSION) |
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The application of gas chromatography/Fourier transform infrared (GC/FT-IR) data to regulatory decisions requires, among other things, the availability of validated analytical prot...
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INTERIM REPORT ON THE FEASIBILITY OF USING UV (ULTRAVIOLET) PHOTOLYSIS AND APEG (ALKALI POLYETHYLENE GLYCOLATE) REAGENT FOR TREATMENT OF DIOXIN CONTAMINATED SOILS |
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Alkali polyethylene glycolate (APEG) was field tested at Shenandoah Stables in Moscow Mills, Missouri, to evaluate the chemical's potential to dechlorinate 2,3,7,8-tetrachlorodiben...
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INTERLABORATORY STUDY OF INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROSCOPY METHOD 6010 AND DIGESTION METHOD 3050 |
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The design, execution, and results of an interlaboratory study of Method 6010, 'Inductively Coupled Plasma Atomic Emission Spectroscopy,' are described. The study examined the appl...
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INTERNATIONAL WASTE TECHNOLOGIES EVALUATION REPORT SITE PROGRAM DEMONSTRATION, IN-SITU STABILIZATION/SOLIDIFICATION, HIALEAH, FL, VOLUME I |
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A demonstration of the International Waste Technologies (IWT) process, utilizing the Geo-Con, Inc., deep-soil-mixing equipment has been performed under the Superfund Innovative Tec...
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INTERPRETING PATTERNS OF LAKE ALKALINITY IN THE UPPER MIDWEST REGION, USA |
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To clarify the extent of sensitivity of surface waters to acidic deposition in Minnesota, Wisconsin, and Michigan, lake and stream patterns were mapped for alkalinity. Data was ana...
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INTERPRETING TRACER DATA TO FORECAST REMEDIAL PERFORMANCE |
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The cost of remediating sites contaminated with organics is high. Prior to investing in remedial technologies, decision makers want to know the benefits, both short term and long t...
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INTERPRETING TRACER DATA TO FORECAST REMEDIAL PERFORMANCE |
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The cost of remediating sites contaminated with organics is high. Prior to investing in remedial technologies, decision makers want to know the benefits, both short term and long t...
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INVESTIGATING THE GEOELECTRICAL RESPONSE OF HYDROCARBON CONTAMINATION UNDERGOING BIODEGRADATION |
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A newly proposed geoelectrical model for hydrocarbon contaminated sites predicts high
conductivities coincident with t he Contaminated zone a s opposed t o t he traditionally a...
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INVESTIGATION OF LANDFILL LEACHATE POLLUTANT ATTENUATION BY SOILS |
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In this laboratory study using 11 soils from 7 major orders in the U.S., the movement and retention of As, Be, Cd, CN, Cr, Cu, Hg, Ni, Pb, Se, V, and Zn when carried by municipal s...
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INVESTIGATION OF THE LIGHT ENHANCED EMISSION OF MERCURY FROM NATURALLY ENRICHED SUBSTRATES. (R827622E02) |
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Incident radiation has been reported to facilitate mercury release from soils. In this study the influence of light on mercury emissions from substrates amended with pure synthe...
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INVESTIGATION OF THE POTENTIAL RELEASE OF POLYCHLORINATED DIOXINS AND FURANS FROM PCP-TREATED UTILITY POLES |
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The United States (US) Environmental Protection Agency (EPA) estimated that the use of technical grade pentachlorophenol (PCP) between 1970 and 1995 to treat wood was approximately...
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INVESTIGATION OF VERTICAL DISTRIBUTION AND MORPHOLOGY OF INDIGENOUS ORGANIC MATTER AT SLEEPING BEAR SITE, MICHIGAN |
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This study evaluates the nature and origin of particulate rganiccarbon and organic coatings on aquifer sends upgradient from a fuel pill site near the Sleeping Bear Dunes National ...
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INVLUENCE OF MACROMOLECULES ON CHEMICAL TRANSPORT |
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Macromolecules in the pore fluid influence the mobility of hydrophobic compounds through soils. his study evaluated the significance of macromolecules in facilitating chemical tran...
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IRON NUTRITION INFLUENCE ON CADMIUM ACCUMULATION BY ARABIDOPSIS THALIANA (L.) HEYNH |
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Greenhouse experiments were conducted to determine whether Arabidopsis thaliana (L.) Heynh, a putative Fe-efficient species, accumulated higher concentrations of Cd from a sparingl...
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IS "RECLAIMED WATER AND BIOSOLIDS: BENEFITS AND HAZARDS" IT: "BIOACCULULATION AND FOODCHAIN CONTAMINATION IN TERRESTRIAL ECOSYSTEMS" |
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Biosolids are a complex mixture which contain both inorganic and organic adsorbents. Thus, addition of biosolids to soil not only increases the environmental loading of toxic meta...
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IS NITROGEN DEPOSITION ALTERING THE NITROGEN STATUS OF NORTHEASTERN FORESTS? |
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This paper reviews literature and compiles existing data to address the question "Is N deposition altering the N status in Northeastern forests?" Using correlational techniques an...
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IS REMOVAL THE ONLY OPTION: IN SITU REMEDIATION OF METAL CONTAMINATED SOILS |
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The In-place Inactivation and Natural Ecological Restoration Technologies (IINERT) Soil-Metals Action Team was established in 11/95 as one of several Action Teams under the USEPA R...
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ISOTOPIC COMPOSITIONS OF SULFATE ASSOCIATED WITH THE OXIDATION OF ARSENIAN SULFIDE MINERALOGY IN THE GOOSE RIVER GROUNDWATERSHED, MAINE |
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Geogenic arsenic occurs in groundwater within the polymethamorphic amphibolite-grade Waldoboro Pluton Complex in mid-coastal Maine. A few As water samples exceeded 10 ug l(-1). Par...
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ISSUES IN ASSESSING LOW LEVEL IONIZABLE CONTAMINANT PARTITIONING IN SOILS AND SEDIMENTS |
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Solubilization has profound implications for such diverse risk assessment activities as assessing sediment contaminant porewater exposures to benthic fauna, determining half live...
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ITEMS TO CONSIDER REGARDING PFOA IN SOILS: REPORT FOR OPPT PUBLIC DOCKET |
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Chemical data for perfluorinated octanoic acid (PFOA) and soil partitioning that are available in the literature and from third-parties were used to calculate the propensity for PF...
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J.R. SIMPLOT EX-SITU BIOREMEDIATION TECHNOLOGY FOR TREATMENT OF DINOSEB-CONTAMINATED SOILS - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the findings of an evaluation of the J.R. Simplot Ex-Situ Bioremediation Technology on the degradation of Dinoseb (2 sec-butyl-4,6-dinitrophenol) an agricult...
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J.R. SIMPLOT EX-SITU BIOREMEDIATION TECHNOLOGY FOR TREATMENT OF DINOSEB-CONTAMINATED SOILS - INNOVATIVE TECHNOLOGY REPORT |
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This report summarizes the findings of an evaluation of the J.R. Simplot Ex-Situ Bioremediation Technology on the degradation of dinoseb (2-set-butyl-4,6-dinitrophenol) an agricult...
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J.R. SIMPLOT EX-SITU BIOREMEDIATION TECHNOLOGY FOR TREATMENT OF TNT-CONTAMINATED SOILS - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the findings of the second evaluation of the J.R. Simplot Ex-situ Bioremediation Technology also known as the Simplot Anaerobic Bioremediation (SABRE™) proce...
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KINETICS AND MECHANISMS OF SOIL BIOGEOCHEMICAL PROCESSES |
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The application of kinetic studies to soil chemistry is useful to determine reaction mechanisms and fate of nutrients and environmental contaminants. How deeply one wishes to query...
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KINETICS OF DISSOLUTION |
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Chemistry by its very nature is concerned with change. There are simple but significant interactions between air, water, and minerals that impact our natural environment. Mineral...
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LABORATORY ASSESSMENT OF POTENTIAL HYDROCARBON EMISSIONS FROM LAND TREATMENT OF REFINERY OILY SLUDGES |
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Volatile organics emissions were characterized when petroleum refinery oily sludges were incorporated in soils under controlled laboratory conditions. The sludges tested included t...
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LABORATORY MICROCOSM EXPERIMENTS OF OXIDATION PROCESSES AFTER STEAM INJECTION |
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Aggressive thermal methods such as steam injection or resistive heating are known to be effective for the recovery of many types of volatile and semivolatile compounds. It has bee...
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LACK OF ANTAGONISM BETWEEN THE BIOCONTROL AGENT GLIOCLADIUM VIRENS AND VESICULAR ARBUSCULAR MYCORRHIZAL FUNGI |
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Fungal biocontrol agent Gliocladium virens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi Glomus etunicatum Becker & Gerdemann and Glomus moss...
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LAND REMEDIATION WITH BIOSOLIDS - SLUDGE MAGIC - TIME BOMB? |
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Addition of biosolids to soils increases the environmental loading of toxic metals (Cd, Zn, Cu, Ni, Pb, etc.) and alters the chemistry and phytoavailability of these metals. This a...
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LAND TREATABILITY OF REFINERY AND PETROCHEMICAL SLUDGES |
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The land disposal of API separator sludges was investigated with regard to decomposition rates or organic constitutents and the possible impact of these materials on plants and sur...
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LAND TREATMENT AND THE TOXICITY RESPONSE OF SOIL CONTAMINATED WITH WOOD PRESERVING WASTE |
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Soils contaminated with wood preserving wastes, including pentachlorophenol (PCP) and creosote, are treated at a field-scale in an engineered prepared-bed system consisting of two ...
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LAND TREATMENT FIELD STUDIES. VOLUME 5. WASTEWATER TREATMENT SLUDGE FROM BATCH ORGANIC CHEMICAL SYNTHESIS |
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This report presents the results of field measurements and observations of a land treatment operation using a sludge generated from organic chemical manufacture. The sludge is appl...
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LANDFILL CONTAINMENT AND COVER SYSTEMS |
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The U.S. Environmental Protection Agency through its research and field experiences has developed control strategies for hazardous and municipal solid waste landfills and surface i...
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LANDSCAPE INFLUENCES ON NON-POINT SOURCED NUTRIENTS FOR AGRICULTURAL WATERSHEDS IN OHIO |
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In stream nutrient concentrations for a set of 35 small agricultural subwatersheds in southwestern Ohio have been monitored with respect to both water quality and biological integr...
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LARGE LABORATORY COLUMN STUDY OF THE TRANSPORT AND DEGRADATION OF ATRAZINE, CARBOFURAN, AND DIURON IN SOILS |
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The suitability for land treatment of 3 pesticides in a liquid waste stream was evaluated. he evaluation was performed under laboratory conditions utilizing 15 cm by 150 cm long gl...
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LEACHATE CLOGGING ASSESSMENT OF GEOTEXTILE AND SOIL LANDFILL FILTERS |
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The liquids management strategy for any municipal or hazardous waste landfill requires a knowledgeable design strategy for the leachate collection system located at the base of the...
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LEAD SORPTION ON RUTHENIUM OXIDE: A MACROSCOPIC AND SPECTROSCOPIC STUDY |
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Metal oxide phases play an important role in governing the sorption and desorption mechanisms of metals in water, soils, and sediments. Many researchers have examined the efficien...
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LEAK AND GAS PERMEABILITY TESTING DURING SOIL-GAS SAMPLING AT HAL'S CHEVRON LUST SITE IN GREEN RIVER, UTAH |
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The results of gas permeability and leak testing during active soil-gas sampling at Hal’s Chevron LUST Site in Green River, Utah are presented. This study was conducted to support...
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LETTUCE AND BROCCOLI RESPONSE AND SOIL PROPERTIES RESULTING FROM TANNERY WASTE APPLICATIONS |
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Broccoli (Brassica oleracea L. var. italica) and lettuce (Lactuca sativa L.) were grown on Willamette sil (Pachic Ultic Argixerolls) amended 1 and 2 yr earlier with chrome tannery ...
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LIMITED PHYTO- AND BIO-AVAILABILITY PREVENT RISK FROM CADMIUM IN REGULATED BIOSOLIDS |
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Biosolids are a complex mixture which usually contain 100-times more Zn than Cd, and both inorganic and organic Cd adsorbents. Experiments were conducted to test the effect of pers...
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LIMITED PHYTO-AND BIO-AVAILABILITY PREVENT RISK FROM CADMIUM IN REGULATED BIOSOLIDS (ABSTRACT) |
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Biosolids are a complex mixture which usually contain 100-times more Zn than Cd, and both inorganic and organic Cd adsorbents. Experiments were conducted to test the effect of pers...
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LINERS FOR SANITARY LANDFILLS AND CHEMICAL AND HAZARDOUS WASTE DISPOSAL SITES |
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This report lists addresses of sanitary landfills and chemical and hazardous waste disposal sites and holding ponds with some form of impermeable lining. Liners included are polyet...
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LINERS OF NATURAL POROUS MATERIALS TO MINIMIZE POLLUTANT MIGRATION |
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When landfills are not completely impermeable then underlying groundwater may be contaminated by leachate constituents if these are not adequately retained by soils. Research on in...
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LINKING SOLID PHASE SPECIATION OF PB SEQUESTERED TO BIRNESSITE TO ORAL PB BIOACCESSIBLITY: IMPLICATIONS FOR SOIL REMEDIATION |
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Lead (Pb) sorption onto oxide surfaces in soils may strongly influence the risk posed from incidental ingestion of lead-contaminated soils. In this study, Pb was sorbed to a model...
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LINKING WATERFOWL WITH CONTAMINANT SPECIATION IN RIPARIAN SOILS |
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This report summarizes the results of Mine Waste Technology Program (MWTP) Activity III, Project 38, Linking Waterfowl with Contaminant Speciation in Riparian Soils, implemented an...
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LIQUID CHROMATOGRAPHIC DETERMINATION OF 5-(METHYLAMINO)-2-PHENYL-4-[3-(TRIFLUROMETHYL) PHENYL]-3-(2H)-FURANONE IN SOIL |
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A rapid, sensitive method is described for the determination of 5-(methylamino)-2-phenyl-4-[3-(trifluromethyl)phenyl]-3-(2H)-furanone RE-40885) concentrations in three soil types. ...
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LITERATURE REVIEW SUMMARY OF METALS EXTRACTION PROCESSES USED TO REMOVE LEAD FROM SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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LITERATURE REVIEW SUMMARY OF METALS EXTRACTION PROCESSES USED TO REMOVE LEAD FROM SOILS |
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Numerous Superfund sites throughout the United States are contaminated with toxic metals. attery reclamation, lead smelting, and lead-based paint manufacturing are examples of proc...
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LNAPL DISTRIBUTION AND HYDROCARBON VAPOR TRANSPORT IN THE CAPILLARY FRINGE |
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Vertical distributions of water and light nonaqueous phase liquid (LNAPL) from a well document aviation gasoline spill at the US Coast Guard Air Station in Traverse City, Michigan ...
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LONG-TERM EFFECTS OF LAND APPLICATION OF DOMESTIC WASTEWATER: CAMARILLO, CALIFORNIA, IRRIGATION SITE |
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This report presents the results of an assessment of the long-term impacts on crops, soils, and grondwater resulting from irrigation with secondary-treated municipal effluent. The ...
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LONG-TERM EFFECTS OF LAND APPLICATION OF DOMESTIC WASTEWATER: TOOELE, UTAH, SLOW RATE SITE. VOLUME 1: FIELD INVESTIGATION |
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The general objective of this study was to determine the long-term effects of employing secondary treated municipal wastewater as irrigation water. The study compared the quality o...
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LONG-TERM EFFECTS OF LAND APPLICATION OF DOMESTIC WASTEWATER: TOOELE, UTAH, SLOW RATE SITE. VOLUME 2: ENGINEERING SOIL PROPERTIES |
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A high quality secondary sewage effluent was applied to three soil types and its effects on the shear strength, consolidation properties, and permeability of the soils was studied....
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LONG-TERM EFFECTS OF LAND APPLICATION OF DOMESTIC WASTEWATER; MESA, ARIZONA: IRRIGATION SITE |
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This report presents the results of an assessment of the long-term impacts on crops, soils, and groundwater resulting from irrigation with secondary-treated municipal effluent. The...
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LONG-TERM STUDY OF VOC RECOVERY FROM AMPULATED, DRY, FORTIFIED SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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LONG-TERM STUDY OF VOLATILE ORGANIC COMPOUND RECOVERY FROM AMPULATED, DRY, FORTIFIED SOILS |
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Our objective was to evaluate the stability and extractability of volatile organic compound (VOCs) when fortified on dry soils and stored in sealed ampules. Two desiccator-dried so...
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LOSS OF ORGANIC CHEMICALS IN SOIL: PURE COMPOUND TREATABILITY STUDIES |
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Comprehensive screening data on the treatability of 32 organic chemicals in soil were developed. Of the evaluated chemicals, 22 were phenolic compounds. Aerobic batch laboratory mi...
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LOW COST SOLIDIFICATION/STABILIZATION TREATMENT FOR SOILS CONTAMINATED WITH DIOXIN, PCP AND CREOSOTE |
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The USEPA's NRMRL conducted successful treatability tests of innovative solidification/stabilization (S/S) formulations to treat soils contaminated with dioxins, pentachlorophenol ...
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LOW COST SOLIDIFICATION/STABILIZATION TREATMENT FOR SOILS CONTAMINATED WITH DIOXIN, PCP, AND CREOSOTE |
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The USEPA's National Risk Management Research Laboratory condcuted successful treatability tests of innovative solidification/stablization (S/S) formulations to treat soils contami...
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LOW TEMPERATURE THERMAL AERATION (LTTA) PROCESS - CANONIE ENVIRONMENTAL SERVICES, INC. - APPLICATIONS ANALYSIS REPORT |
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A field demonstration was conducted under the SITE program to evaluate the Low Temperature Thermal Aeration (LTTA) treatment technology developed by Canonie Environmental Services ...
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LOW TEMPERATURE THERMAL TREATMENT (LT3®) TECHNOLOGY - ROY F. WESTON, INC. - APPLICATIONS ANALYSIS REPORT |
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This report evaluates the Low Temperature Thermal Treatment (LT3®) system's ability to remove VOC and SVOC compounds from solid wastes. This evaluation is based on trea...
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LOW THERMAL TREATMENT (LT3) TECHNOLOGY, ROY F. WESTON, INC. - APPLICATIONS ANALYSIS REPORT |
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This report evaluates the Low Temperature Thermal Treatment (LT3) system's ability to remove VOC and SVOC compounds from solid wastes. his evaluation is based on treatment performa...
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LUBBOCK LAND TREATMENT SYSTEM RESEARCH AND DEMONSTRATION PROJECT. VOLUME 2. PERCOLATE INVESTIGATION IN THE ROOT ZONE |
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The Lubbock Land Treatment System Research and Demonstration Project, funded by Congress in 1978 (H.R. 9375), was designed to address the various issues concerning the use of slow ...
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LUBBOCK LAND TREATMENT SYSTEM RESEARCH AND DEMONSTRATION PROJECT. VOLUME 5. EXECUTIVE SUMMARY |
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The Lubbock Land Treatment System Research and Demonstration Project, funded by Congress in 1978 (H.R. 9375), was designed to address the various issues concerning the use of slow ...
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MAJOR ION CHEMISTRY OF LAKES ON THE KENAI PENINSULA, ALASKA |
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A probability sample of 59 lakes was conducted in August, 1988 to characterize the major ion chemistry of a population of over 800 lakes on the Kenai Peninsula, AK. here were two g...
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MANAGEMENT OF GAS AND LEACHATE IN LANDFILLS: PROCEEDINGS OF THE ANNUAL MUNICIPAL SOLID WASTE RESEARCH SYMPOSIUM (3RD) HELD AT ST. LOUIS, MISSOURI ON MARCH 14, 15 AND 16, 1977 |
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Contents: Current research on land disposal of municipal solid wastes; Summary of office of solid waste gas and leachate activities; State of Missouri solid waste management activi...
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MANAGEMENT OF SMALL WASTE FLOWS |
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This report is a compilation of laboratory and field investigations conducted at the University of Wisconsin since 1971. As its primary objective, the research program was to conce...
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MANAGING AND RESTORING UPLAND RIPARIAN MEADOWS IN THE CENTRAL GREAT BASIN |
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Riparian meadow ecosystems in upland watersheds are of local and regional importance in the Great Basin. Covering only 1-3% of the total land area, these ecosystems contain a dispr...
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MANUAL: BIOVENTING PRINCIPLES AND PRACTICE VOLUME I. BIOVENTING PRINCIPLES |
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Bioventing is the process of aerating soils to stimulate in situ biological activity and promote bioremediation. Bioventing typically is applied in situ to the vadose zone and is a...
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MAP OF ECOREGIONS OF MISSISSIPPI |
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Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for...
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MARINE AEROSOLS ALTER SOIL PROCESSES IN COASTAL FORESTS |
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Most models of watershed biogeochemistry include the movement of materials from land to rivers and eventually the ocean. Few conceptual views, however, acknowledge the influence o...
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MARSH PLANTS AS VECTORS IN TRACE METAL TRANSPORT IN OREGON TIDAL MARSHES |
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The role of Pacific coast marsh plants as vectors in the flux of trace metals was studied in natural and perturbated situations. The flux of Cr, Cu, Fe, Mg, Sr, and Zn were studied...
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MASS SPECTROMETRY IN ENVIRONMENTAL SCIENCES |
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This review covers applications of mass spectrometry to the environmental sciences. From the early applications of mass spectrometry to environmental research in the 1960s and 197...
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MATHEMATICAL MODEL FOR THE TRANSPORT AND FATE OF ORGANIC CHEMICALS IN UNSATURATED/SATURATED SOILS |
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A mathematical model, simulating the transport and fate of nonionizable organic compounds in unsaturated/saturated porous media (soils) in a terrestrial microcosm has been develope...
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MAXIMUM UTILIZATION OF WATER RESOURCES IN A PLANNED COMMUNITY: EUTROPHICATION POTENTIAL OF SURFACE WATERS IN A DEVELOPING WATERSHED |
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The purpose of this research was to characterize the algal populations in a developing area (The Woodlands) to evaluate the impact of urbanization on the aquatic flora in The Woodl...
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MEASUREMENT OF EFFECTIVE AIR DIFFUSION COEFFICIENTS FOR TRICHLOROETHENE IN UNDISTURBED SOIL CORES. (R826162) |
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AbstractIn this study, we measure effective diffusion coefficients for trichloroethene in undisturbed soil samples taken from Picatinny Arsenal, New Jersey. The measure...
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MEASUREMENT OF HIGH-MOLECULAR-WEIGHT POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS BY PARTICLE BEAM HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY |
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Polycyclic aromatic hydrocarbons (PAHs) comprise a class of potentially hazardous compounds of concern to the U.S.EPA. The application of particle-beam (PB) liquid chromatography-m...
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MEASUREMENT OF HIGH-MOLECULAR-WEIGHT POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS BY PARTICLE BEAM HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY/MASS SPECTROMETRY |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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MEASUREMENT OF HIGH-MOLECULAR-WEIGHT POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS BY PARTICLE BEAM HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY/MASS SPECTROMETRY |
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Polycyclic aromatic hydrocarbons (PAHS) comprise a class of potentially hazardous compounds of concern to the U.S. EPA. he application of particle-beam liquid chromatography/mass s...
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MEASUREMENT OF HIGH-MOLECULAR-WEIGHT POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS BY PARTICLE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY/AMASS SPECTROMETRY |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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MEASUREMENT OF POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS AND SEDIMENTS BY PARTICLE-BEAM/HIGH-PERFORMANCE/LIQUID CHROMATOGRAPHY/MASS SPECTROMETRY |
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An analytical method was developed for the measurement of certain polycyclic aromatic hydrocarbons (PANs) in soils and sediments by particle beam liquid chromatography/mass spectro...
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MEASUREMENTS OF INFILTRATION RATES IN COMPACTED URBAN SOILS |
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Previous research hs identified significant reductions in infiltration rates in disturbed urban soils, More than 150 prior tests were conducted in predominately sandy and clayey ur...
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MEASUREMENTS OF SOIL PERMEABILITY AND PRESSURE FIELDS IN EPA'S SOIL-GAS CHAMBER |
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The paper discusses the measurement of soil permeability and pressure fields using EPA's soil-gas chamber, designed to study the production and transport of radon and other potenti...
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MEASURING AND INTERPRETING VOCS IN SOILS: STATE OF THE ART AND RESEARCH NEEDS |
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A "National Symposium on Measuring and Interpreting VOCS in Soils: State of the Art and Research Needs" was held in Las Vegas between January 121-14, 1993. pproximately 300 people ...
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MEASURING BASE-FLOW CHEMISTRY AS AN INDICATOR OF REGIONAL GROUND-WATER QUALITY IN THE MID-ATLANTIC COASTAL PLAIN |
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Water quality in headwater (first-order) streams of the Mid-Atlantic Coastal Plain during base flow in the winter and spring is related to land use, hydrogeology, and other natural...
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MECHANISM(S) OF UPTAKE AND SEQUESTRATION OF LEAD AND OTHER HEAVY METALS BY PSEUDOMONAS AERUGINOSA CHL-004 |
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Heavy metals in soils and sediments of anthropogenic origin are a major environmental concern, due to the significant health risks they pose and due to the difficulties encountered...
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MECHANISMS OF HYDROGEN PEROXIDE DECOMPOSITION IN SOILS. (R825159) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MECHANISTIC ROLES OF SOIL HUMUS AND MINERALS IN THE SORPTION OF NONIONIC ORGANIC COMPOUNDS FROM AQUEOUS AND ORGANIC SOLUTIONS |
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Mechanistic roles of soil humus and soil minerals and their contributions to soil sorption of nonionic organic compounds from aqueous and organic solutions are illustrated. Parathi...
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MERCURY CYCLING AND BIOMAGNIFICATION |
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Mercury cycling and biomagnification was studied in man-made ponds designed for watering livestock on the Cheyenne River Sioux Reservation in South Dakota. Multiple Hg species were...
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MERCURY DISTRIBUTION IN SOIL AROUND A LARGE COAL-FIRED POWER PLANT |
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Seventy soil samples were collected on a radial grid employing sixteen evenly spaced radii and five logarithmically spaced circles, concentric around the Four Corners power plant. ...
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MERCURY SEQUESTRATION IN CHL004 AND BACTERIA FROM AROUND THE WORLD |
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Mercury is a particularly toxic heavy metal which because of it's volatility easily impacts the globe and is partially responsible for loss of the ozone layer and thus global warmi...
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METABOLISM OF ALACHLOR AND PROPACHLOR IN SUSPENSIONS OF PRETREATED SOILS AND IN SAMPLES FROM GROUND WATER AQUIFERS |
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Suspensions of soils treated in the field with alachlor (2-chloro-2',6'diethyl-N-(methoxymethyl)acetanilide) and propachlor (2-chlor-N-isopropylacetanilide) were tested for their a...
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METAL CONTENT OF EARTHWORMS IN SLUDGE AMENDED SOILS: UPTAKE AND LOSS |
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The widespread practice of landspreading of sludge has raised concern about increasing concentrations of potentially toxic metals in soils, with the possibility of these metals adv...
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METAL SPECIATION IN SOIL, SEDIMENT, AND WATER SYSTEMS VIA SYNCHROTRON RADIATION RESEARCH |
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Metal contaminated environmental systems (soils, sediments, and water) have challenged researchers for many years. Traditional methods of analysis have employed extraction methods ...
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METAL-BINDING ROLE OF IRON AND MANGANESE OXIDES IN BIOSOLIDS-AMENDED SOILS |
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The environmental impact and potential hazards of metals in biosolids to plants, animals and the human food chain have been studied for decades. From this body of work, it has been...
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METHANE EMISSIONS FROM WETLAND RICE AREAS OF ASIA |
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Kahlil and Rasmussen (1990) reviewed eleven global methane budgets published between 1978 and 1988. hey found methane emissions from rice paddies ranged from 18 to 280 Tg year-1 wh...
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METHOD FOR SCALING BIOLOGICAL RESPONSE OF SOIL MICROCOSMS |
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An extensive series of laboratory experiments was conducted in soil microcosms to study the respiratory response of microorganisms to toxicant amendments within different types of ...
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METHOD FOR THE SUPERCRITICAL FLUID EXTRACTION OF SOILS/SEDIMENTS |
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Supercritical fluid extraction has been publicized as an extraction method which has several advantages over conventional methods, and it is expected to result in substantial cost ...
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METHODS FOR EVALUATING THE BIOLOGICAL IMPACT OF POTENTIALLY TOXIC WASTE APPLIED TO SOILS |
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The study was designed to evaluate two methods that can be used to estimate the biological impact of organics and inorganics that may be in wastes applied to land for treatment and...
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METHODS FOR THE DETERMINATION OF METALS IN ENVIRONMENTAL SAMPLES |
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Thirteen analytical methods covering 36 analytes which may be present in a ariety of environmental sample types are described in detail. hree of these methods are sample preparatio...
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METHODS FOR THE DETERMINATION OF METALS IN ENVIRONMENTAL SAMPLES - SUPPLEMENT I |
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This manual includes seven analytical methods four of which are considered multi-analyte methods, two are single analyte methods, and the total recoverable sample preparation proce...
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METHODS FOR THE DETERMINATION OF TOTAL ORGANIC CARBON (TOC) IN SOILS AND SEDIMENTS |
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Organic matter in soils and sediments is widely distributed over the earth's surface occurring in almost all terrestrial and aquatic environments (Schnitzer, 1978). Soils and sedim...
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METHODS FOR THE SPECIATION OF METALS IN SOILS: A REVIEW |
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The inability to determine metal species in soils hampers efforts to understand the mobility, bioavailability, and fate of contaminant metals in environmental systems, to assess he...
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METHODS MODULE |
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The ultimate goal of classification is to reduce variation within classes to enable detection of differences between reference and impacted condition within classes as cost-effecti...
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METHYLATION OF MERCURY IN AGRICULTURAL SOILS |
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Methylation of applied divalent mercury ion was found to occur in agricultural soils. The production of methylmercury was affected by soil texture, soil moisture content, soil temp...
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MICHIGAN SOIL VAPOR EXTRACTION REMEDIATION (MISER) MODEL: A COMPUTER PROGRAM TO MODEL SOIL VAPOR EXTRACTION AND BIOVENTING OF ORGANIC CHEMICALS IN UNSATURATED GEOLOGICAL MATERIAL |
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Soil vapor extraction (SVE) and bioventing (BV) are proven strategies for remediation of unsaturated zone soils. Mathematical models are powerful tools that can be used to integrat...
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MICHIGAN SOIL VAPOR EXTRACTION REMEDIATION (MISER) MODEL: A COMPUTER PROGRAM TO MODEL SOIL VAPORT EXTRACTION AND BIOVENTING OF ORGANIC MATERIALS IN UNSATURATED GEOLO-GICAL MATERIAL (EPA/600/SR-97/099) |
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Soil vapor extraction (SVE) and bioventing (BV) are proven strategies for remediation of unsaturated zone soils. Mathematical models are powerful tools that can be used to integrat...
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MICROBIAL ANALYSIS OF MTBE, BTEX BIOREMEDIATION: BIONETS CONTAINING PM1, SOS, ISOLITE. |
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MTBE and BTEX (benzene, toluene, ethylbenzene, and xylene) are major problems of many sites in the United States. The objective of this study was to determine if biologically acti...
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MICROBIAL ANALYSIS OF MTBE, BTEX BIOREMEDIATION: BIONETS CONTAINING PM1, SOS, ISOLITE� |
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MTBE and BTEX (benzene, toluene, ethylbenzene, and xylene) are major problems of many sites in the United States. The objective of this study was to determine if biologically activ...
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MICROBIAL ANALYSIS OF MTBE, BTEX BIOREMEDIATION: BIONETS(TM) CONTAINING PM1, SOS, ISOLITE (R) |
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MTBE and BTEX (benzene, toluene, ethylbenzene, and xylene) are major problems of many sites in the United States. The objective of this study was to determine if biologically acti...
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MICROBIAL BIOMASS IN SOILS OF RUSSIA UNDER LONG-TERM MANAGEMENT PRACTICES |
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Non-tilled and tilled plots on a spodosol (C-org 0.65-1.70%; pH 4.1-4.5) and a mollisol (C-org 3.02-3.13%, pH 4.9-5.3), located in the European region of Russia, were investigated ...
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MICROBIAL DEGRADATION OF ALKYLBENZENES UNDER SULFATE-REDUCING AND METHANOGENIC CONDITIONS |
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Aquifer solids and soils obtained from various hydrocarbon-contaminated sites were used to investigate the ability of indigenous microorganisms to degrade monoaromatic hydrocarbons...
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MICROBIAL DEGRADATION OF FLURTAMONE IN THREE GEORGIA SOILS |
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Degradation of flurtamone3 in a Greenville sandy loam, a Cecil loam, and a Dothan loamy sand with 0, 1, or 2 years of previous flurtamone field use was evaluated under controlled c...
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MICROBIAL HEALTH CONSIDERATIONS OF SOIL DISPOSAL OF DOMESTIC WASTEWATERS: PROCEEDINGS OF A CONFERENCE ON MAY 11-12, 1982 HELD AT UNIVERSITY OF OKLAHOMA, NORMAN |
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The proceedings contain 16 papers from invited investigators recognized for their expertise in the field of microbial health considerations of soil disposal of domestic wastewaters...
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MICROBIAL REDUCTION OF ARSENATE IN THE PRESENCE OF FERRIHYDRITE. (R825403) |
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Increased mobilization of As under anaerobic conditions is of great concern
in As contaminated soils and sediments. The identification of important release
mechanisms ma...
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MICROBIAL REMOVAL OF HALOGENATED METHANES, ETHANES, AND ETHYLENES IN AN AEROBIC SOIL EXPOSED TO METHANE. (JOURNAL VERSION) |
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Contamination of ground water with halogenated aliphatic hydrocarbons threatens the source of drinking water. To study microbial processes that may enhance the removal of these com...
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MICROBIAL RESPIRATION AND CHEMICAL SPECIATION IN METAL-AMENDED SOILS |
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Soil microbial respiration was measured on five soils after treatment with metal salt additions to evaluate the effect of metal toxicity. After 45 d incubation at 20 degrees C, mos...
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MICROBIAL RESPONSES TO NITROGEN ADDITIONS IN ALPINE TUNDRA SOILS (R823442) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MICROBIAL RESPONSES TO SIMULATED TILLAGE IN CULTIVATED AND UNCULTIVATED SOILS. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MICROTOPOGRAPHY AND GRAZING IN DESERT RANGE LAND: A LESSON IN STATISTICS VERSUS REALITY IN THE FIELD |
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This presentation summarizes two experiments on the effects of grazing on soil microtopography in a Chihuahuan Desert rangeland. In the first experiment, we measured the effect of ...
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MICROWAVE-ASSISTED EXTRACTION OF ORGANIC COMPOUNDS FROM STANDARD REFERENCE SOILS AND SEDIMENTS |
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As part of an ongoing evaluation of new sample preparation techniques by the U.S. Environmental Protection Agency (EPA), especially those that minimize waste solvents, microwave-as...
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MIGRATION OF HAZARDOUS SUBSTANCES THROUGH SOIL |
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Factorlally designed column and batch leaching studies were conducted on samples of various Industrial wastes, flue gas desulfurlzatlon sludges, and coal fly ash to determine the ...
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MINE WASTE TECHNOLOGY PROGRAM; PHOSPHATE STABILIZATION OF HEAVY METALS CONTAMINATED MINE WASTE YARD SOILS, JOPLIN, MISSOURI NPL SITE |
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This document summarizes the results of Mine Waste Technology Project 22-Phosphate Stabilization of Heavy Metals-Contaminated Mine Waste Yard Soils. Mining, milling, and smelting ...
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MINEBANK RUN PROJECT AS AN APPROACH FOR RESTORING DEGRADED URBAN WATERSHEDS AND RIPARIAN ECOSYSTEMS |
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Elevated nitrate levels in streams and groundwater pose human and ecological threats. Minebank Run, an urban stream in Baltimore MD, will be restored in 2004/2005 using various t...
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MINERALIZATION OF A SORBED POLYCYCLIC AROMATIC HYDROCARBON IN TWO SOILS USING CATALYZED HYDROGEN PEROXIDE. (R826163) |
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Hydrogen peroxide (H2O2) catalyzed by soluble iron or naturally occurring soil minerals, (i.e., modified Fenton's reagent) was investigated as a basis for ...
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MINERALIZATION OF DESORPTION-RESISTANT 1,4-DCB IN WETLAND SOILS. (R828773C003) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MINERALOGICAL PRESERVATION OF SOLID SAMPLES COLLECTED FROM ANOXIC SUBSURFACE ENVIRONMENTS |
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Remedial technologies utilized at hazardous waste sites for the treatment of metal and metalloid contaminants often take advantage of reduction-oxidation (redox) processes to reach...
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MINIRHIZOTRON INSTALLATION IN SANDY, ROCKY SOILS WITH MINIMAL SOIL DISTURBANCE |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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MOBILE SYSTEM FOR EXTRACTING SPILLED HAZARDOUS MATERIALS FROM EXCAVATED SOILS |
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Laboratory tests were conducted with three separate pollutants (phenol, arsenic trioxide, and polychlorinated biphenyls (PCB's) and two soils of widely different characteristics (s...
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MOBILIZATION AND TRANSPORT OF SOIL PARTICLES DURING INFILTRATION EXPERIMENTS IN AN AGRICULTURAL FIELD, SHENANDOAH VALLEY, VIRGINIA. (R824772) |
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Evidence that fine particles mobilized and transported in
soils and aquifers can have a profound influence on
contaminant migration has spawned much interest recently
i...
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MOBILIZATION OF ALUMINUM IN A NATURAL SOIL SYSTEM: EFFECTS OF HYDROLOGIC PATHWAYS |
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A two-component soil water flow model was used with an equilibrium speciation model WATEQF to study aluminum mobility in soils of a forested watershed. Analysis of soil solution sa...
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MOBILIZATION OF CONTAMINANTS IN SOILS THROUGH ENERGY ADDITION |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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MODEL OF VIRUS TRANSPORT IN UNSATURATED SOIL |
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As a result of the recently-proposed mandatory ground-water disinfection requirements to inactivate viruses in potable water supplies, there has been increasing interest in virus f...
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MODELING AGGREGATE EXPOSURE AND DOSE OF CHILDREN TO A WOOD TREATMENT PRESERVATIVE FROM PLAYSETS AND HOME DECKS |
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Pressure- or non-pressure- treated lumber may pose a potential health hazard to children if the children contact certain chemicals in soils around leaching wood structures and/or...
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MODELING DIFFUSION AND REACTION IN SOILS: X. A UNIFYING MODEL FOR SOLUTE AND GAS DIFFUSIVITY IN UNSATURATED SOIL. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MODELING IMPACTS OF ACID PRECIPITATION FOR NORTHEASTERN MINNESOTA |
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The acidification of lakes and streams due to acid precipitation has been documented in southern Sweden and Norway, the northeastern United States and southern Ontario. Geochemistr...
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MODELING LEACHING OF VIRUSES BY THE MONTE CARLO METHOD |
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A predictive screening model was developed for fate and transport
of viruses in the unsaturated zone. A database of input parameters
allowed Monte Carlo analysis with the m...
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MODELING MERCURY FATE IN SEVEN GEORGIA WATERSHEDS |
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Field and modeling studies were conducted in support of total maximum daily loads (TMDLs)for mercury in six south Georgia rivers and the Savannah River. Mercury is introduced to t...
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MODELING MERCURY FLUXES AND CONCENTRATIONS IN A GEORGIA WATERSHED RECEIVING ATMOSPHERIC DEPOSITION LOAD FROM DIRECT AND INDIRECT SOURCES |
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This paper presents a modeling analysis of airborne mercury deposited onto the Ochlockonee River watershed located in Georgia, USA. Atmospheric deposition monitoring and source att...
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MODELING MULTIPHASE ORGANIC CHEMICAL TRANSPORT IN SOILS AND GROUND WATER |
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Subsurface contamination due to immiscible organic liquids is a widespread problem which poses a serious threat to ground-water resources. n order to understand the movement of suc...
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MODELING OF HEAVY METAL MOVEMENT IN VEGETATED, UNSATURATED SOILS WITH EMPHASIS ON GEOCHEMISTRY. (R825549C046) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MODELING REGIONAL-SCALE ATMOSPHERIC MERCURY USING RELMAP |
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The Regional Lagrangian Model of Air Pollution (RELMAP) is used to simulate the emission, transport and diffusion, chemical transformation, and wet and dry deposition of elemental ...
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MODELING SOIL-WATER DISTRIBUTION OF AROMATIC AMINES IN WATER SATURATED SOIL SYSTEMS |
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Research summarized in this report focuses on the abiotic interactions of aromatic amines with whole soils in aqueous systems. This work was initiated to improve our ability to pr...
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MODELING THE EFFECTS OF ACID DEPOSITION: ASSESSMENT OF A LUMPED PARAMETER MODEL OF SOIL WATER AND STREAMWATER CHEMISTRY |
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Quantitative predictions of the effects of acid deposition on terrestrial and aquatic systems require physically based, process-orientated models of catchment soil water and stream...
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MODELING THE HYDROGEOCHEMICAL RESPONSE OF A STREAM TO ACID DEPOSITION USING THE ENHANCED TRICKLE-DOWN MODEL |
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The enhanced trickle-down model was applied to White Oak Run, a second-order stream, located in the Shenandoah National Park, Virginia, on the western slope of the Blue Ridge Mount...
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MODELING THE RICE BUDGET IN CHINA USING GIS TECHNOLOGY |
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Rice paddles are a source of food for over half of the world population and also the source of a very potent greenhouse gas, methane. sing GIS-linked climate based and yield-based ...
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MODELING WATER QUALITY AND THE EFFECTS OF AGRICULTURAL BMPS (BEST MANAGEMENT PRACTICES) IN THE IOWA RIVER BASIN |
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This paper describes a demonstration application of comprehensive hydrology and water quality modeling on a large river basin to evaluate the effects of agricultural nonpoint pollu...
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MODELLING OF AGRICHEMICALS IN ENVIRONMENTAL COMPARTMENTS - CONCEPTS, PROBLEMS, AND SOLUTIONS |
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The potential of plant protection chemicals to migrate away from application sites and expose non-target biota is of continuing interest and concern to regulatory specialists, ecot...
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MODELS FOR LEACHING OF PESTICIDES IN SOILS AND GROUNDWATER |
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Models are developed which describe leaching of pesticides in the root zone and the intermediate vadose zone, and flushing of residual solute mass in the aquifer. Pollutants' loss...
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MODELS FOR LEACHING OF PESTICIDES IN SOILS AND GROUNDWATER. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MODIFICATION OF THE NEUBAUER TECHNIQUE TO ASSESS TOXICITY OF HAZARDOUS CHEMICALS IN SOILS |
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The Neubauer technique was modified to provide a sensitive and economical phytoassay for soils and surface waters obtained from a chemical waste site. Use of individual plastic enc...
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MODIFIED LANGMUIR EQUATION FOR PREDICTING SORPTION OF METHYLACRIDINIUM ION IN SOILS AND SEDIMENTS |
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An empirical model for predicting sorption isotherms of organic cations was tested using a set of 10 soils and sediments. The model is based on a competitive Langmuir equation with...
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MOLECULAR BONDING SYSTEM - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This document presents an evaluation of the Molecular Bonding System (MBS) and its ability to chemically stabilize three metals-contaminated wstes/soils during a SITe demo. The MBS...
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MOLECULAR CHARACTERIZATION OF MICROBIAL COMMUNITIES IN A JP-4 FUEL CONTAMINATED SOIL |
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In this study, lipid biomarker characterization of the bacterial and eukaryotic communities was combined with PCR-DGGE analysis of the eubacterial community to evaluate correlation...
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MOLECULAR STUDIES OF PSEUDOMONAS AERUGINOSA CHL-004'S INTERACTION WITH HEAVY METALS |
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Heavy metal contamination of soils and sediments as the result of human activity is of worldwide concern. In particular lead, which has been used in the production of batteries, ga...
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MONITORING MICROBES, ALKYL PHENOLS, AND SOIL TOXICITY AFTER LAND APPLICATION OF ANAEROBICALLY DIGESTED BIOSOLIDS |
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A common disposal practice for municipal biosolids is to spread this material on agricultural fields as a soil amendment. For example, over 3 million dry tons of treated sewage slu...
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MONITORING MICROBES, ALKYL PHENOLS, AND SOIL TOXICITY AFTER LAND APPLICATION OF ANAEROBICALLY DIGESTED BIOSOLIDS |
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A common disposal practice for municipal biosolids is to spread this material on agricultural fields as a soil amendment. For example, over 3 million dry tons of treated sewage slu...
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MONITORING NETWORK DESIGN FOR SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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MOVEMENT OF BACTERIA THROUGH SOIL AND AQUIFER SAND |
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The transport of microorganisms in soils is of major importance for bioremediation of subsurface polluted zones. rocedure for evaluating the relative mobility and recovery of bacte...
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MOVEMENT OF MERCURY-203 IN PLANTS |
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Seeds of Pisum sativum, varieties Little Marvel and Alaska, were planted in soils contaminated with radioactive ionic mercury, methylmercury or phenylmercury compounds. After satur...
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MOVEMENT OF SELECTED METALS, ASBESTOS, AND CYANIDE IN SOIL: APPLICATIONS TO WASTE DISPOSAL PROBLEMS |
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This report presents information on movement of selected hazardous substances in soil which can be applied to problems of selecting and operating land disposal sites for wastes con...
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MOVEMENT OF SELECTED ORGANIC LIQUIDS INTO DRY SOILS |
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The movement of six organic liquids (toluene, xylene, kerosene, acetone, isopropyl alcohol and ethylene glycol) and water through five soils (Davidson, Ava, Canelo, Anthony and Moh...
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MOVING PLANT TOXICOLOGY FROM THE GREENHOUSE TO THE FIELD: A METHOD THAT INCORPORATES THE POSITIVE ATTRIBUTES OF EACH |
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Open top chambers (OTC) have been used to study effects of air pollutants on plants for over 25 years. Many of those studies have used potted plants, producing environmental and e...
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MTBE BIOREMEDIATION WITH BIONETS CONTAINING ISOLITE®, PM1, SOLID OXYGEN SOURCE (SOS) OR AIR |
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MTBE, a gasoline additive, is a persistent and foul tasting contaminant that is more mobile in groundwater than BTEX (benzene, toluene, ethylbenzene, xylenes). It is turning up at ...
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MTBE BIOREMEDIATION WITH BIONETS(TM) CONTAINING ISOLITE, PM1, SOLD OXYGEN SOURCE (SOS) OR AIR |
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MTBE, a gasoline additive, is a persistent and foul tasting contaminant that is more mobile in groundwater than BTEX (benzene, toluene, ethylbenzene, xylenes). It is turning up at ...
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MTBE IN SITU BIODEGRADATION IN BIONETS USING ISOLITE, PM1, SLOW RELEASING OXYGEN AND AIR IN INDIAN COUNTRY |
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Methyl tert-Butyl Ether (MTBE), a gasoline additive, is a persistent, foul tasting chemical and more mobile in ground water than BTEX. Our objective was to determine if biological...
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MULTI-LABORATORY EVALUATION OF METHODS FOR DETECTING ENTERIC VIRUSES IN SOILS |
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Two candidate methods for the recovery and detection of viruses in soil were subjected to round robin comparative testing by members of the American Society for Testing and Materia...
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MULTIDISCIPLINARY MANAGEMENT OF STORMWATER RUNOFF - THE SHEPHERD CREEK WATERSHED PILOT STUDY |
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Increased stormwater runoff from urbanized areas is a primary degrading influence on environmental quality. In addition to ecological, hydrological, and consideration of soils and ...
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MULTIMEDIA EXPOSURE ESTIMATES APPLIED TO TOXIC WASTE SITES |
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Exposure to chemicals which contaminate soils or are buried in land disposal facilities can occur through more than one route. In estimating the magnitude of human intake rates or ...
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MULTIPHASE FLOW AND TRANSPORT IN POROUS MEDIA |
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Multiphase flow and transport of compositionally complex fluids in geologic media is of importance in a number of applied problems which have major social and economic effects. n p...
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MUNICIPAL SOLID WASTE GENERATED GAS AND LEACHATE: 1974 SUMMARY REPORT |
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The report reviews literature and 1974 research dealing with the degradation of municipal solid waste in sanitary landfills, production of leachate and gas, the modes of migration ...
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MUTAGENICITY OF PAH-CONTAMINATED SOILS DURING BIOREMEDIATION |
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Bioremediation of contaminated soils is considered an effective method for reducing potential health hazards. Although it is assumed that (bio)remediation is a detoxifying process,...
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MUTATIONS IN SOIL: A REVIEW |
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The intentional and accidental discharges of toxic pollutants into the lithosphere results in soil contamination. In some cases (e.g., wood preserving wastes, coal-tar, airborne co...
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MYCORRHIZAE ALTER QUALITY AND QUANTITY OF CARBON ALLOCATED BELOW GROUND |
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Plants and soils are a critically important element in the global carbon-energy equation. t is estimated that in forest ecosystems over two-thirds of the carbon is contained in soi...
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MYCORRHIZAL VS. SAPROTROPHIC STATUS OF FUNGI: THE ISOTOPIC EVIDENCE |
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Relative abundance of carbon (C) and nitrogen (N) isotopes in fungal sporocarps may prove useful in unraveling fungal roles in ecosystems. Sporocarps of known mycorrhizal or saprot...
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Mapping isolated wetlands with GIS and remote sensing in North Central Florida, USA |
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Wetlands perform many functions on the landscape related to water quality and quantity, and provide habitat for myriad organisms. The identification of wetlands can be problematic,...
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Metal Immobilization Influence On Bioavailability And Remediation For Urban Environments |
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Immobilization of soil contaminants, such as lead, via phosphate amendments to alter the chemical environment of metals into highly insoluble forms is a well established process. T...
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Method Development for the Determination of Fluorotelomer Alcohols in Soils by Gas Chromatography Mass Spectrometry |
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Fluorotelomer alcohols (FTOHs) have been widely studied as precursors to perfluorocarboxylates, e.g. 8:2 FTOH degrades to perfluorooctanoic acid (PFOA). This presentation describes...
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Moving from the laboratory to the field: Adding natural environmental conditions to toxicology testing |
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While laboratory toxicology tests are generally easy to perform, cost effective and readily interpreted, they have been criticized for being unrealistic. In contrast, field tests ...
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NAPL: SIMULATOR DOCUMENTATION |
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A mathematical and numerical model is developed to simulate the transport and fate of NAPLs (Non-Aqueous Phase Liquids) in near-surface granular soils. The resulting three-dimensio...
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NAPL: SIMULATOR DOCUMENTATION (EPA/600/SR-97/102) |
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A mathematical and numerical model is developed to simulate the transport and fate of NAPLs (Non-Aqueous Phase Liquids) in near-surface granular soils. The resulting three-dimensio...
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NATURAL ATTENUATION OF COPPER IN SOILS AND SOIL MINERALS - I |
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The bioavailability and toxicity of Cu in soils is controlled by a number of soil properties and processes. Some of these such as pH, adsorption/desorption and competition with ben...
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NATURAL ATTENUATION OF FUEL HYDROCARBONS AT MULTIPLE AIR FORCE BASE DEMONSTRATION SITES: SYMPOSIUM/ CONFERENCE |
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NRMRL-ADA-01241
Kampbell*, D.H., Hanson, Jerry E., Henry, BM, and Hicks, John R. "Natural Attenuation of Fuel Hydrocarbons at Multiple Air...
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NATURAL EMISSIONS OF NON-METHANE VOLATILE ORGANIC COMPOUNDS, CARBON MONOXIDE, AND OXIDES OF NITROGEN FROM NORTH AMERICA |
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The magnitudes, distributions, controlling processes and uncertainties associated with North American natural emissions of oxidant precursors are reviewed. Natural emissions are r...
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NATURAL EMISSIONS OF NON-METHANE VOLATILE ORGANIC COMPOUNDS, CARBON MONOXIDE, AND OXIDES OF NITROGEN FROM NORTH AMERICA. (R825259) |
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AbstractThe magnitudes, distributions, controlling processes and uncertainties associated with North American natural emissions of oxidant precursors are reviewed. Natu...
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NEGLECTED COMPONENTS OF BIODIVERSITY: SOIL ORIBATID MITES, COMMUNITY STRUCTURE AND SOIL RECOVERY |
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Oribatid mites are an abundant and diverse component of soils in regional pine forests, and are valuable in characterizing the biodiversity of these forested lands. We sampled ori...
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NEW ADVANCES IN BORON SOIL CHEMISTRY |
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Boron is an essential plant micronutrient for which the range between deficiency and toxicity is narrower than for any other nutrient element. Plants respond directly to the amoun...
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NEW ADVANCES IN BORON SOIL CHEMISTRY - Paper |
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Boron is an essential plant micronutrient for which the range between deficiency and toxicity is narrower than for any other nutrient element. Plants respond directly to the amoun...
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NEW APPROACHES TO THE DECONTAMINATION OF HAZARDOUS WASTES |
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The Hazardous Waste Engineering Research Laboratory is currently supporting a number of research projects to develop innovative chemical and biological systems capable of detoxifyi...
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NEW DIRECTIONS FOR RESEARCH IN EPA |
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The Environmental Protection Agency's (EPA) Office of Research and Development (ORD) carries out research programs, many of which help EPA fulfill its environmental protection prog...
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NEW YORK CITY'S WATER SUPPLY: A 25 YEAR LANDSCAPE ANALYSIS OF THE CATSKILL/DELAWARE WATERSHEDS |
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A number of water bodies located within the New York City's water supply system are impaired
by nutrients, pathogens and sediment. The objective of this study was to investigate...
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NITRATE AND PHOSPHORUS RUNOFF LOSSES FROM SMALL WATERSHEDS IN GREAT LAKES BASIN |
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Summary data are given for nitrogen and phosphorus lost during runoff events during a 2-year study of two small watersheds in the Great Lakes Basin. Patterns of runoff and sediment...
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NITRATE REMOVAL EFFECTIVENESS OF A RIPARIAN BUFFER ALONG A SMALL AGRICULTURAL STREAM IN WESTERN OREGON |
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We established two study sites with similar soils and hydrology but contrasting riparian vegetation along Lake Creek, an intermittent stream that drains perennial ryegrass fields i...
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NITROGEN AND IRRIGATION MANAGEMENT TO REDUCE RETURN-FLOW POLLUTION IN THE COLUMBIA BASIN |
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Cooperative field studies have evaluated dissolved-N levels and leaching, and corresponding crop yields, for potato production practices in the Columbia Basin area of Washington. H...
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NITROGEN DEPOSITION AND ORGANIC MATTER MANIPULATIONS AFFECT GROSS AND NET NITROGEN TRANSFORMATIONS IN TWO TEMPERATE FORESTS SOILS |
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Soil nitrogen transformations are intricately linked to carbon transformations. We utilized two existing organic matter manipulation sites in western Oregon, USA and Hungary to in...
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NITROGEN DISTRIBUTION AND 15N IN A 115-YEAR CHRONOSEQUENCE OF OLD-FIELD WHITE PINE |
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Regrowing forests of the northeastern US are expected to serve as an important sink for carbon and nitrogen as they recover from extensive clearing and agriculture. We used a chron...
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NITROGEN FLUX FROM WEST CASCADE RANGE HEADWATER STREAMS DRAINING FORESTS ALONG A SUCCESSIONAL GRADIENT |
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Conceptual models predict that unpolluted, aggrading forest ecosystems tightly retain available nitrogen (N) until declining productivity by mature trees reduces the demand for ess...
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NITROGEN OXIDE GAS EMISSIONS FROM TEMPERATE FOREST SOILS RECEIVING LONG-TERM NITROGEN INPUTS. (R827674) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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NITROGEN SATURATION IN NORTHERN FOREST ECOSYSTEMS |
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In this article we provide a formal definition of nitrogen saturation and set forth a series of testable hypotheses regarding the states of forest ecosystem response to chronic nit...
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NON-LINEAR NITROGEN RETENTION IN AN UNPOLLUTED OLD-GROWTH TEMPERATE FOREST RECEIVING A GEOMETRIC RANGE OF EXPERIMENTAL 15N ADDITIONS |
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Over the past century, human activities have increased the rate and extent of atmospheric nitrogen (N) deposition over large regions of Earth. These novel N inputs have driven man...
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NONDESTRUCTIVE TESTING (NDT) TECHNIQUES TO DETECT CONTAINED SUBSURFACE HAZARDOUS WASTE |
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The project involves the detection of buried containers with NDT (remote-sensing) techniques. Seventeen techniques were considered and four were ultimately decided upon. They were:...
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NORTHERN OHIO AEROSOL STUDY: STAPHYLOCOCCUS AUREUS EVALUATION |
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A consortium of Universities, located in northwest Ohio have received funds to conduct a comprehensive evaluation of land applied biosolids in that state. This USDA funded study in...
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NOVEL MODEL DESCRIBING TRACE METAL CONCENTRATIONS IN THE EARTHWORM, EISENIA ANDREI |
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We developed a novel model describing Eisenia andrei body concentrations for Cd, Cu, Pb, and Zn as a function of pH, metals, and soluble organic carbon (SOC) in soil extracts for p...
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NOVEL MODEL DESCRIBING TRACE METAL CONCENTRATIONS IN THE EARTHWORM, EISENIA ANDREI: JOURNAL ARTICLE |
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NRMRL-CIN-1707
Sake, J.K., Impellitteri**, C.A., Peijnenburg, W., and Allen, H.E. Novel Model Describing Trace
Metal Concentrations in the Earthworm, Eisenia andrei. Environmental ...
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NOX AND CO EMISSIONS FROM SOIL AND SURFACE LITTER IN A BRAZILIAN SAVANNA |
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Land clearing and burning in the tropics often results in increased solar irradiation of soil and surface organic matter. This increased light exposure and surface heating may impa...
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NUTRIENT DYNAMICS IN RELATION TO GEOMORPHOLOGY OF RIVERINE WETLANDS |
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Variation in water depth and soil properties associated with geomorphic structures can affect riverine wetland nutrient dynamics by altering biogeochemical processes. We examined t...
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OBSERVATIONS AND ANALYSIS OF MERCURY IN THE TOP SOIL WITHIN A 100-METER RADIUS OF A CHLORALKALI PLANT IN NORTHER KAZAKHSTAN USING EPA METHOD 7473 |
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This limited study has shown a comparison of mercury concentrations at different sample collection locations at the chlor-alkali plant in Northern Kazakhstan. Method 7473 uses a di...
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OCCURRENCE OF MERCURY-RESISTANT MICROORGANISMS IN MERCURY-CONTAMINATED SOILS AND SEDIMENTS IN PAVLODAR, KAZAKHSTAN |
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There is extensive mercury contamination of soil surrounding a chloralkali plant in Pavlodar, Kazakhstan that operated from 1970 to 1990. High-level mercury contamination exists wi...
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OCCURRENCE OF MICROORGANISMS RESISTANT TO MERCURY IN MERCURY CONTAMINATED SOILS AND SEDIMENTS IN PAVLODAR, KAZAKHSTAN |
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There is extensive mercury contamination of soil surrounding a chloralkali plant in Pavlodar, Kazakhstan that operated from 1970 to 1990. High-level mercury contamination exists wi...
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OFF-LINE COMPLEXATION/SUPERCRITICAL FLUID EXTRACTION AND GAS CHROMATOGRAPHY WITH ATOMIC EMISSION DETECTION FOR THE DETERMINATION AND SPECIATION OF ORGANOTIN COMPOUNDS IN SOILS AND SEDIMENTS |
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No abstract available....
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OHIO RIVER BASIN ENERGY STUDY: LAND USE AND TERRESTRIAL ECOLOGY |
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The report was prepared as part of the Ohio River Basin Energy Study (ORBES), a multidisciplinary policy research program. It represents the final technical report summarizing land...
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OIL SPILL: DECISIONS FOR DEBRIS DISPOSAL. VOLUME II. LITERATURE REVIEW AND CASE STUDY REPORTS |
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This report was prepared to guide persons responsible for disposing of oil spill debris in selecting suitable methods and sites, and in carrying out effective, environmentally safe...
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ON-LINE CALCULATOR: VAPOR INTRUSION MODELING |
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Migration of volatile chemicals from the subsurface into overlying buildings is called vapor intrusion (VI). Volatile organic chemicals in contaminated soils or groundwater can emi...
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ON-SITE ENGINEERING REPORT FOR THE LOW-TEMPERATURE THERMAL DESORPTION PILOT-SCALE TEST ON CONTAMINATED SOIL |
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Performance of the thermal desorption process for removal of organic contaminants, mostly polynuclear aromatic hydrocarbons (PAHs), from soils was evaluated. The Superfund Site soi...
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ON-SITE ENGINEERING REPORT FOR THE LOW-TEMPERATURE THERMAL DESORPTION PILOT-SCALE TEST ON CONTAMINATED SOIL |
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Performance of the thermal desorption process for removal of organic contaminants, mostly polynuclear aromatic hydrocarbons (PAHs), from soils was evaluated. he Superfund Site soil...
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ON-SITE METHODS FOR ASSESSING CHEMICAL IMPACT ON THE SOIL ENVIRONMENT USING EARTHWORMS: A CASE STUDY AT THE BAIRD AND MCGUIRRE SUPERFUND SITE, HOLBROOK, MA |
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Five Lumbricus terrestris Linneaus were placed into enclosures at a field site and evaluated after 7 days. he enclosures were distributed in transects throughout areas of high and ...
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ON-SITE TREATMENT OF CREOSOTE AND PENTACHLOROPHENOL SLUDGES AND CONTAMINATED SOILS |
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Information is presented for quantitative evaluation of treatment potential for creosote and pentachlorophenol (PCP) wood treating contaminants in soil systems. he study was conduc...
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ONSITE ENGINEERING REPORT FOR SOLIDIFICATION/ STABILIZATION TREATMENT TESTING OF CONTAMINATED SOILS |
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The EPA's Office of Solid Waste and Emergency Response (OSWER) is currently developing land disposal restrictions (LDRs) for contaminated soil and debris (CS&D). The Office of Rese...
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ONSITE ENGINEERING REPORT FOR SOLIDIFICATION/STABILIZATION TREATMENT TESTING OF CONTAMINATED SOILS |
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A pilot-scale test of the S/S technology was conducted in Cincinnati, Ohio in coordination with IT Corporation and the University of Cincinnati. hree different hinders (portland ce...
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OPERATION AND RESEARCH AT THE USEPA INCINERATION RESEARCH FACILITY: ANNUAL REPORT FOR FY91 |
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The U.S. Environmental Protection Agency's Incineration Research Facility (IRF) in Jefferson, Arkansas, is an experimental facility that houses two pilot-scale incinerators and the...
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OPERATIONS AND RESEARCH AT THE U.S. EPA INCINERATION RESEARCH FACILITY: ANNUAL REPORT FOR FY90 |
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The U.S. Environmental Protection Agency's Incineration Research Facility in Jefferson, Arkansas, is an experimental facility that houses two pilot.scale incinerators and the assoc...
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OPERATIONS AND RESEARCH AT THE U.S. EPA INCINERATION RESEARCH FACILITY: ANNUAL REPORT FOR FY92 |
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The U.S. Environmental Protection Agency's Incineration Research Facility (IRF) in Jefferson, Arkansas, is an experimental facility that houses two pilotscale incinerators and the ...
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OPERATIONS AND RESEARCH AT THE U.S. EPA INCINERATION RESEARCH FACILITY: ANNUAL REPORT FOR FY94 |
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The U.S. Environmental Protection Agency’s Incineration Research Facility (IRF) in Jefferson, Arkansas, is an experimental facifity that houses a pilot-scale rotary kiln incinerati...
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OPERATIONS AND RESEARCH AT THE U.S. EPA INCINERATION RESEARCH FACILITY: ANNUAL REPORT FOR FY95 |
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During fiscal year 1995 (FY95), the last few tests of the Superfund Innovative Technology Evaluation (SITE) demonstration of the pulse combustion burner technology developed by Son...
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OPPORTUNITIES FOR USE OF GEOSYNTHETICS IN WASTE MANAGEMENT FACILITIES |
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Book Chapter 2nd Int'l High-Performance Fabrics Conf. Proceedings, Boston, MA 1/12-13/92. he USEPA through its research and field experiences has developed control strategies for h...
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OPTIMIZING NIST SEQUENTIAL EXTRACTION METHOD FOR LAKE SEDIMENT (SRM4354) |
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Traditionally, measurements of radionuclides in the environment have focused on the determination of total concentration. It is clear, however, that total concentration does not de...
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ORD RESEARCH SUPPORT FOR RCRA VAPOR INTRUSION GUIDANCE |
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ASTSWMO - Association of State and Territorial Solid Waste Management Officials meet twice a year to exchange information on some of the emerging opportunities for forming partners...
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ORD WASTE RESEARCH STRATEGY |
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The "Waste Research Strategy" covers research necessary to support both the proper management of solid and hazardous wastes and the effective remediation of contam...
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ORGANIC CHEMICAL TRANSPORT TO GROUNDWATER |
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The use of pesticides in the production of agricultural commodities is widespread. Since nearly one-half of the U.S. population relies on groundwater as their source for drinking w...
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ORGANIC MATTER MANIPULATIONS HAVE LITTLE EFFECT ON GROSS AND NET NITROGEN TRANSFORMATIONS IN TWO TEMPERATE FOREST MINERAL SOILS IN THE USA AND CENTRAL EUROPE |
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Soil nitrogen transformations are intricately linked to carbon transformations. We utilized two existing organic matter manipulation sites in western Oregon, USA and Hungary to in...
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ORGANIC POLLUTANT SORPTION IN AQUATIC SYSTEMS |
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An understanding of sorption processes is an important key to describing pollutant fate in an aquatic system because sorption may alter significantly physical transport and chemica...
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OVERVIEW OF EPA'S LANDSCAPE SCIENCE PROGRAM |
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Over the past 10 years, the U.S. Environmental Protection Agency's Office of Research and Development's National Exposure Research Laboratory has expanded it's ecological research ...
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OVERVIEW OF EPA'S LANDSCAPE SCIENCES PROGRAM |
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Over the past 10 years, the U.S. Environmental Protection Agency's Office of Research and Development's National Exposure Research Laboratory has expanded it's ecological research ...
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Overview of USEPA's ORD Technical Outreach and Support Activities on Vapor Intrusion Impacts - 03/2008 |
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The science of determining, characterizing and managing vapor intrusion risks is constantly evolving. Much remains to be done in assisting regulators, consultants and other decisio...
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PAH DETERMINATION IN ENVIRONMENTAL SAMPLES |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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PALEOECOLOGICAL ANALYSIS OF LAKE ACIDIFICATION TRENDS IN NORTH AMERICA AND EUROPE USING DIATOMS AND CHRYSOPHYTES |
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Analysis of sediment diatom and chrysophyte assemblages is the best technique currently available for inferring past lakewater pH trends, and use of this approach is increasing rap...
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PARAMETER ESTIMATION OF TWO-FLUID CAPILLARY PRESSURE-SATURATION AND PERMEABILITY FUNCTIONS |
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Capillary pressure and permeability functions are crucial to the quantitative description of subsurface flow and transport. Earlier work has demonstrated the feasibility of using ...
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PARTIAL LEAST SQUARE ANALYSES FOR ASSOCIATION OF LANDSCAPE METRICS WITH WATER BIOLOGICAL AND CHEMICAL PROPERTIES IN THE SAVANNAH RIVER BASIN |
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Surface water quality is related to conditions in the surrounding geophysical environment, including soils, landcover, and anthropogenic activities. A number of statistical methods...
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PASSIVE RADON CONTROL FEATURE EFFECTIVENESS IN NEW HOUSE CONSTRUCTION IN SOUTH CENTRAL FLORIDA |
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The paper discusses passive radon control feature effectiveness in new house construction in South Central Florida. he State of Florida has a draft radon standard for new construct...
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PATTERNS OF NITRATE LOSSES FROM FORESTED BASINS IN THE OREGON COAST RANGE |
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Numerous factors may control losses of dissolved nutrients from forested basins in the Oregon Coast Range. Potentially important factors include forest composition, stand age, for...
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PATTERNS OF NITROGEN AND CARBON STABLE ISOTOPE RATIOS IN MACROFUNGI, PLANTS AND SOILS IN TWO OLD-GROWTH CONIFER FORESTS |
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Natural abundance stable isotope ratios represent a potentially valuable tool for studying fungal ecology. We measured 15N and 13C in ectomycorrhizal and saprotrophic macrofungi...
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PATTERNS OF SOIL ORGANIC MATTER STABILIZATION IN A TRANSECT OF MATURE FORESTS IN THE PACIFIC NORTHWEST USA |
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Ecosystem soils influence the cycling of nutrients, movement and storage of water, and serve as an important global reservoir of carbon (C). The accumulation and storage of C in s...
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PCB DESTRUCTION: A NOVEL DEHALOGENATION REAGENT |
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Alkali metal polyethylene glycolate complexes (APEGs) are being investigated as reagents for the in-situ decontamination of soils containing PCBs and other haloorganics in the U.S....
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PENNSYLVANIA BASELINE |
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This report was prepared as part of the Ohio River Basin Energy Study (ORBES), a multidisciplinary policy research program supported by the Environmental Protection Agency. Its pur...
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PERCHLORATE IDENTIFICATION IN FERTILIZERS |
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Perchlorate has contaminated groundwater, drinking water, and soils at several locations in the United States. The primary source of contamination at sites that have been investiga...
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PERCHLORATE IDENTIFICATION IN FERTILIZERS AND ACCUMULATION IN LETTUCE SEEDLINGS |
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Perchlorate has contaminated groundwater, drinking water and soils at several locations in the U.S. The primary source of contamination at sites that have been investigated to date...
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PERCHLORATE PHYTOREMEDIATION USING HARDWOOD TREES AND VASCULAR PLANTS |
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Perchlorate has contaminated water and soils at several locations in the United States. Perchlorate is
water soluble, exceedingly mobile in aqueous systems, and can persist for ...
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PERCHLORATE UPTAKE AND TRANSFORMATION IN AQUATIC PLANTS |
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Ammonium Perchlorate (AP) is produced on a large scale by the chemical industry, for a wide range of applications for example, as a strong oxidizing agent in solid rocket fuel. AP ...
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PERCHLORATE-CROP INTERACTIONS FROM CONTAMINATED IRRIGATION WATER AND FERTILIZER APPLICATIONS |
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Perchlorate has contaminated water and soils at several locations in the United States. Perchlorate is water soluble, exceedingly mobile in aqueous systems, and can persist for man...
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PERFORMANCE AND COST EVALUATION OF BIOREMEDIATION TECHNIQUES FOR FUEL SPILLS |
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Soils and ground water beneath the U.S. Coast Guard Air Station at Traverse City, MI, have been contaminated with separate spills of aviation gasoline and JP-4 jet fuel. Contaminat...
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PERFORMANCE EVALUATION AT A LONG-TERM FOOD PROCESSING LAND TREATMENT SITE |
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The objective of this project was to determine the performance of a full scale, operating overland flow land (GEL) treatment system treating nonhazardous waste. Performance was eva...
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PERFORMANCE EVALUATION AT A LONG-TERM FOOD PROCESSING LAND TREATMENT SITE |
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The objective of this project was to determine the performance of a full scale, operating overland flow land (GEL) treatment system treating nonhazardous waste. Performance was eva...
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PERFORMANCE EVALUATION MATERIALS FOR THE ANALYSIS OF VOLATILE ORGANIC CONTAMINANTS IN SOILS: A PRELIMINARY ASSESSMENT |
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During an evaluation of field portable gas chromatographs (GC), site-specific performance evaluation materials (PEM) were prepared and used as quality control samples. lean soils f...
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PERFORMANCE TESTING OF METHOD 1312-QA SUPPORT FOR RCRA TESTING |
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The question of how to access the risks associated with ground water contamination from soils containing toxic substances is a critical issue for the Agency. A major limitation of ...
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PERMEABILITY OF SOILS TO FOUR ORGANIC LIQUIDS AND WATER |
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Saturated hydraulic conductivities and intrinsic permeabilities were evaluated for eight contrasting soils with four organic liquids and water. The organic liquids were kerosene, e...
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PERSISTENCE OF CELLS AND TOXINS FROM BACILLUS THURINGIENSIS SUBSP. KURSTAKI INTRODUCED INTO SARDINIA SOILS IN SPRAYS. (R826107) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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PERSISTENT EPISODIC ACIDIFICATION OF STREAMS LINKED TO ACID RAIN EFFECTS ON SOIL |
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Episodic acidification of streams, identified in the late 1980s as one of the most significant environmental problems caused by acidic deposition, had not been evaluated since the ...
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PERSPECTIVES ON SETTING SUCCESS CRITERA FOR WETLAND RESTORATION |
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The task of determining the success of wetland restoration has long been challenging and sometimes contentious because success is an imprecise term that means different things in d...
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PH BUFFERING IN FOREST SOIL ORGANIC HORIZONS: RELEVANCE TO ACID PRECIPITATION |
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Samples of organic surface horizons (Oi, Oe, Oa) from New York State forest soils were equilibrated with 0 to 20 cmol HNO3 Kg(-1) soil in the laboratory by a batch technique design...
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PHOSPHORUS SORPTION DYNAMICS IN SOILS AND COUPLING WITH SURFACE AND PORE WATER IN RIVERINE WETLANDS |
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Adsorption to soils is one of the dominant mechanisms of P storage in wetlands. We examined P sorption dynamics in soils collected at 12 sample points with diverse hydrology, geomo...
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PHOTOCHEMICAL EFFECTS ON NOX AND CO EMISSIONS IN A BRAZILIAN SAVANNA |
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Land clearing and burning in the tropics often results in increased solar irradiation of soil and surface organic matter. This increased light exposure may impact the emissions of...
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PHOTOLYSIS OF ARYL KETONES WITH VARYING VAPOR PRESSURE ON SOIL |
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The photolysis of a series of aryl ketones on air-dried soil surfaces was examined to establish whether vapor transport has an effect on the rate and extent of photolysis. f vapor ...
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PHOTOLYSIS OF CHLORINATED DIOXINS IN ORGANIC SOLVENTS AND ON SOILS |
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Photoreduction of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) to 2,3,7-trichloro-2-dioxin (TrCDD) in isooctane was found to account for approximately 10 of the loss of TCDD and is t...
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PHOTOLYSIS OF OCTACHLORODIBENZO-P-DIOXIN ON SOILS: PRODUCTION OF 2,3,7,8-TCDD |
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Photolysis of octachlorodibenzo-p-dioxin (OCDD) on soils results in production of the lower chlorinated dibenzo-p-dioxins, notably 2,3,7,7-tetrachloro-dibenzo-p-dioxin (2,3,7,8-TCD...
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PHOTOLYSIS OF SMOKE DYES ON SOILS |
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Photolysis of an azo, a quinophthalone, and several anthraquinone smoke dyes was studied on soil surfaces. nitially, rapid photodegradation of each dye occurred, followed by a peri...
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PHYLOGENETIC AND PHYSIOLOGICAL COMPARISONS OF PAH-DEGRADING BACTERIA FROM GEOGRAPHICALLY DIVERSE SOILS |
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NO ABSTRACT PROVIDED...
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PHYSICAL AND ENGINEERING PROPERTIES OF HAZARDOUS INDUSTRIAL WASTES AND SLUDGES |
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This report presents the results of a laboratory testing program to investigate the properties of raw and chemically fixed hazardous industrial wastes and flue gas desulfurization ...
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PHYSICOCHEMICAL PROPERTIES AS PREDICTORS OF ORGANIC CHEMICAL EFFECTS ON SOIL MICROBIAL RESPIRATION |
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Structure-activity analysis was used to evaluate the effects of 19 hazardous organic chemicals on microbial respiration in two slightly acidic soils (a Captina silt loam from Roane...
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PHYSICS OF IMMISCIBLE FLOW IN POROUS MEDIA |
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Conceptual formulation, numerical implementation and experimental validation of a model for the movement of organic chemicals which are introduced into soils as nonaqueous phase li...
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PHYSIOLOGICALLY BASED EXTRACTION PROCEDURE: COMPARISON OF FIVE FLUIDS |
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Traditionally, the performance of soil remediation technologies has been evaluated based on the total amount of extractable contaminants. However, some have argued that remedial tr...
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PHYTOREMEDIATION |
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This section is part of a letter report. This report is to provide a summary on the state of the art within and outside the Department of Defense (DOD) system of technology(s) and...
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PHYTOREMEDIATION OF ORGANIC AND NUTRIENT CONTAMINANTS |
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Phytoremediation, the use of vegetation for the in situ treatment of contaminated soils and sediments, is an emerging technology that promises effective and inexpensive cleanup of ...
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PHYTOREMEDIATION OF TPH IN SOILS: AN RTDF PROJECT |
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The Remediation Technology Development Forum has undertaken a project to investigate the use of plants in remediation of sites contaminated by petroleum hydrocarbons. Since sites ...
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PHYTOREMEDIATION: USING PLANTS TO CLEAN UP CONTAMINATED SOIL, GROUNDWATER, AND WASTEWATER |
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Phytoremediation is an emerging cleanup technology for contaminated soils, groundwater, and wastewater that is both low-tech and low-cost. The cleanup technology is defined as the ...
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PHYTOTECHNOLOGIES IN THE UNITED STATES: GROWING SOLUTIONS TO ENVIRONMENTAL CHALLENGES |
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Phytotechnology may be defined as the use of plants to contain, sequester, remove, or degrade organic and inorganic contaminants in soils, sediments, surface water, and groundwater...
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PHYTOTRANSFORMATION OF PERCHLORATE USING PARROT-FEATHER |
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Perchlorate is an oxvanion that has been extensively is a strong oxidizing
agent in solid rocket fuel. Contamination of groundwater has occurred as the result of Perchlorate use...
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PILOT STUDIES OF IN-SITU BIO-TRANSFORMATION OF MERCURY-CONTAMINATED GROUNDWATER IN KAZAKHSTAN UTILIZING NATIVE BACTERIA |
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Several regions in the Republic of Kazakhstan and throughout the former USSR are contaminated with mercury resulting from industrial releases. Our studies directed towards determin...
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PILOT SURVEY OF LEVELS OF POLYCHLORINATED DIBENZO-P-DIOXINS (PCDDs), POLYCHLORINATED DIBENZOFURANS (PCDFs), POLYCHLORINATED BIPHENYLS (PCB) AND MERCURY IN RURAL SOILS OF THE U.S. |
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EPA has released a final report entitled, “Pilot Survey of Levels of Polychlorinated Dibenzo-p-dioxins, Polychlorinated Dibenzofurans, Polychlorinated Biphenyls and Mercury in Rura...
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PILOT-SCALE DEMONSTRATION OF A SLURRY-PHASE BIOLOGICAL REACTOR FOR CREOSOTE-CONTAMINATED SOIL |
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This report evaluates the effectiveness of a slurry-phase biodegradation process in reactor vessels to degrade polynuclear aromatic hydrocarbon (PAH) contaminants associated with c...
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PILOT-SCALE DEMONSTRATION OF A SLURRY-PHASE BIOLOGICAL REACTOR FOR CREOSOTE-CONTAMINATED SOIL - APPLICATION ANALYSIS REPORT |
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In support of the U.S. Environmental Protection Agency’s (EPA) Superfund Innovative Technology Evaluation (SITE) Program, a pilot-scale demonstration of a slurry-phase bioremediati...
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PILOT-SCALE INCINERABILITY EVALUATION OF ARSENIC- AND LEAD-CONTAMINATED SOILS FROM TWO SUPERFUND SITES |
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Two incineration test programs were conducted at EPA's Incineration Research Facility to evaluate the suitability of incineration as an option to treat-contaminated Superfund site ...
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PILOT-SCALE INCINERATION OF CONTAMINATED SOIL FROM THE CHEMICAL INSECTICIDE CORPORATION SUPERFUND SITE |
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An incineration test program was conducted at the U.S. Environmental protection Agency's Incinerator Research Facility to evaluate the potential of incineration as an option to tre...
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PILOT-SCALE INCINERATION OF CONTAMINATED SOIL FROM THE PURITY OIL SALES AND MCCOLL SUPERFUND SITES |
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An incineration test program was conducted at the U.S. Environmental Protection Agency's Incineration Research Facility to evaluate the potential of incineration as an option to tr...
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PILOT-SCALE INCINERATION OF CONTAMINATED SOILS FROM THE DRAKE CHEMICAL SUPERFUND SITE |
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A series of pilot-scale incineration tests were performed at the U.S. Environmental Protection Agency's (EPA's) Incineration Research Facility to evaluate the potential of incinera...
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PILOT-SCALE SUBCRITICAL WATER REMEDIATION OF POLYCYCLIC AROMATIC HYDROCARBON- AND PESTICIDE-CONTAMINATED SOIL. (R825394) |
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Subcritical water (hot water under enough pressure to maintain the liquid
state) was used to remove polycyclic aromatic hydrocarbons (PAHs) and pesticides
from highly co...
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PLANT UPTAKE OF NON-IONIC ORGANIC CHEMICALS FROM SOILS |
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Methodologies utilizing simple properties of chemicals - half-life (T 1/2), log octanol-water partition coefficient (log K ow) and Henry's Law constant (Hc) - are developed to scre...
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PLANT UPTAKE OF PENTACHLOROPHENOL FROM SLUDGE-AMENDED SOILS |
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A greenhouse study was conducted to determine the effects of sludge on plant uptake of 14C-pentachlorophenol (PCP). lants included all fescue (Festuca arundinacea Schreb.), lettuce...
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PLANT UPTAKE OF SLUDGE-BORNE PCBS |
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Plant uptake of sludge-borne polychlorinated biphenyls (PCBs) (similar to Aroclor 1248) was evaluated in a greenhouse study with two food-chain crops and a grass species. olychlori...
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PLUTONIUM UPTAKE BY PLANTS FROM SOIL CONTAINING PLUTONIUM-238 DIOXIDE PARTICLES |
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Three plant species--alfalfa, lettuce, and radishes were grown in soils contaminated with plutonium-238 dioxide (238)PuO2 at concentrations of 23, 69, 92, and 342 nanocuries per gr...
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PLUTONIUM-239 AND AMERICIUM-241 UPTAKE BY PLANTS FROM SOIL |
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Alfalfa was grown in soil contaminated with plutonium-239 dioxide (239PuO2) at a concentration of 29.7 nanocuries per gram (nCi/g). In addition to alfalfa, radishes, wheat, rye, an...
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PNEUMATIC PUMPING TEST FOR SOIL VACUUM EXTRACTION |
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In-situ pneumatic pumping tests were performed to estimate the pneumatic permeability at a site containing soils contaminated with aviation gasoline. etermination of pneumatic perm...
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POLANYI-BASED MODELS FOR THE COMPETITIVE SORPTION OF LOW-POLARITY ORGANIC CONTAMINANTS ON A NATURAL SORBENT. (R825406) |
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The development of appropriate equilibrium sorption relationships for anthropogenic organic contaminants with soils and sediments is essential to predicting the extents and rates o...
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POLIOVIRUS RETENTION IN 75-CM SOIL CORES AFTER SEWAGE AND RAINWATER APPLICATION |
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The adsorption rate of a guanidine-resistant strain of poliovirus LSc 2ab was measured in Long Island soils with in situ field cores (10.1 by 75 cm). The test virus was chosen beca...
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POLLUTANT SORPTION TO SOILS AND SEDIMENTS IN ORGANIC/AQUEOUS SOLVENT SYSTEMS |
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The solubility and sorption properties of aromatic solutes in aqueous systems containing polar organic solvents were investigated. The work addressed the situation in which the rel...
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POLYBROMINATED DIPHENYL ETHERS IN US SOILS |
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Chemical analysis of thirty-three soil samples from 15 US states reveals Polybrominated Diphenyl Ethers (PBDEs), in every sample.PBDE concentrations rangefrom 0.09 to 1200 parts pe...
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POLYCYCLIC AROMATIC HYDROCARBONS FROM U.S. AND ANTARCTIC SITES ANALYZED WITH SYNCHRONOUS FLUORESCENCE SPECTROMETRY |
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Synchronous ultraviolet-visible (UV-vis) fluorescence spectrometry is currently being evaluated as a field screening technology by the U.S. Environmental Protection Agency's (EPA) ...
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POROUS PAVEMENT PHASE I DESIGN AND OPERATIONAL CRITERIA (EPA/600/2-80/135) |
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Design and operational criteria, utilization concepts, benefits and disadvantages, as well as other characteristics of porous pavements are presented in this report. Particular emp...
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POROUS PAVEMENT. PHASE I. DESIGN AND OPERATIONAL CRITERIA |
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Design and operational criteria, utilization concepts, benefits and disadvantages, as well as other characteristics of porous pavements are presented in this report. Particular emp...
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POTENTIAL EFFECT OF NO-TILL MANAGEMENT ON CARBON IN THE AGRICULTURAL SOILS OF THE FORMER SOVIET UNION |
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Agricultural soils act as both a source and a sink for atmospheric carbon. ince the onset of cultivation, the 211.5 million ha of agricultural soils in the former Soviet Union (OSU...
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POTENTIAL FOR JOINT RESEARCH BETWEEN EPA AND THE U.S. ARMY |
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The environmental problems being faced by the US Environmental Protection Agency (EPA) and the US Army are closely related, and the research needed to address them overlaps in many...
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POTENTIAL FUTURE EFFECTS OF CURRENT LEVELS OF SULFUR DEPOSITION ON STREAM CHEMISTRY IN THE SOUTHERN BLUE RIDGE MOUNTAINS, U.S. |
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Using newly available regional data sets we examine the potential for future changes in stream acid neutralizing capacity (ANC) for the Southern Blue Ridge Province (SBRP) of the U...
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POTENTIAL SPECIES FOR PHYTOREMEDIATION OF PERCHLORATE. ATHENS, GA: US ENVIRONMENTAL PROTECTION AGENCY |
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Phytoremediation is the use of plants to cleanse soil and water contaminated with organic or inorganic pollutants. This promising new field of research can be used for in situ cle...
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POTENTIAL USE AND MODIFICATION OF EXISTING MESOCOSMS FOR VAPOR PHASE PHOTOTOXICITY |
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With vapor phase plant toxicity testing becoming a requirement in Europe, there is a pressing need to develop and implement acceptable tests protocols. The quickest way to proceed...
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PREDICTING AND FORECASTING SURFACE WATER ACIDIFICATION: A PLAN FOR ASSESSING DATA AGGREGATION EFFECTS |
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A major goal of the Direct/Delayed Response Project (DDRP), a project within the U.S. Environmental Protection Agency's (EPA) Aquatic Effects Research Program (AERP) is to project ...
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PREDICTING ENVIRONMENTAL CONCENTRATIONS OF AIRBORNE POLLUTANTS IN TERRESTRIAL RECEPTORS: THE CASE OF MERCURY |
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The question of mercury in the environment has rapidly become one of the high-profile environmental issues in several countries and internationally. There are environmental and hum...
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PREDICTING PRESENCE OF NUTRIENTS AND PESTICIDES IN BASE FLOW CONDITIONS OF FIRST ORDER STREAMS IN THE MID-ATLANTIC COASTAL PLAIN |
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Excess nutrients and pesticides in the environment can cause a variety of ecological and human-health effects. When nutrients are unused by plants, or pesticides remain after use o...
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PREDICTING THE BIOAVAILABILITY OF COPPER AND ZINC IN SOILS: MODELING THE PARTITIONING OF POTENTIALLY BIOAVAILABLE COPPER AND ZINC FROM SOIL SOLID TO SOIL SOLUTION |
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This research produced statistically based, semi-mechanistic models describing partitioning of Cu and Zn in 40 soils from the US, Canada, the UK, the Netherlands, and Chile with w...
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PREDICTING THE IMPACT OF TROPOSPHERIC OZONE ON ECOLOGICAL RESOURCES FOR SETTING NATIONAL AMBIENT AIR QUALITY STANDARDS |
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The Clean Air Act provides for establishing National Ambient Air Quality Standards (NAAQS) to protect public welfare (including crops, forests, ecosystems, and soils) from adverrse...
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PREDICTING THE IMPACT OF TROPOSPHERIC OZONE ON PLANTS AND ECOSYSTEMS AS A BASIS FOR SETTING NATIONAL AIR QUALITY STANDARDS |
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The Clean Air Act provides for establishing National Ambient Air Quality Standards (NAAQS) to protect public welfare (including crops, forests, ecosystems, and soils) from adverse ...
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PREDICTION OF PHOSPHATE MOVEMENT THROUGH SOME SELECTED SOILS |
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The P sorption capacity of soils must be evaluated at land application wastewater sites when water quality criteria control the design of the treatment system. The soil's capacity ...
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PREFERENTIAL RADON TRANSPORT THROUGH HIGHLY PERMEABLE CHANNELS IN SOILS |
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The paper discusses preferential radon transport through highly permeable channels in soils. Indoor radon levels (that can pose a serious health risk) can be dramatically increased...
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PREPARATION OF SOIL SAMPLING PROTOCOLS: SAMPLING TECHNIQUES AND STRATEGIES |
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The document serves as a companion document to the Soil Sampling Quality Assurance User's Guide, Second Edition. he two documents together provide methods, techniques, and procedur...
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PRINCIPLES OF SYNCHROTRON TECHNIQUES, POTENTIAL AND LIMITATIONS |
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Once environmental contaminants, such as arsenic, chromium, cadmium and lead, are detected, the problem becomes how to deal with them. For the past decade, researchers at the US EP...
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PROBABILISTIC AQUATIC EXPOSURE ASSESSMENT FOR PESTICIDES 1: FOUNDATIONS |
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Models that capture underlying mechanisms and processes are necessary for reliable extrapolation of laboratory chemical data to field conditions. For validation, these models requi...
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PROBABILISTIC ASSESSMENT OF GROUNDWATER VULNERABILITY TO NONPOINT SOURCE POLLUTION IN AGRICULTURAL WATERSHEDS |
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This paper presents a probabilistic framework for the assessment of groundwater pollution potential by pesticides in two adjacent agricultural watersheds in the Mid-Altantic Coasta...
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PROCEEDINGS OF THE SYMPOSIUM ON SOIL VENTING |
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Soil venting has been used to remediate soils in the United States since the early 1980's. It is a recognized standard technology in Germany and is widely utilized in the Netherlan...
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PROCEEDINGS OF THE WORKSHOP ON RADON POTENTIAL MAPPING |
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The report documents a workshop on radon potential mapping, in Gainesville, FL, on April 20, 1990. he workshop, part of the Florida Radon Research Program (FRRP), was designed to i...
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PRODUCTION OF PLANT GROWTH PROMOTING SUBSTANCES IN BACTERIAL ISOLATES FROM THE SEAGRASS RHIZOSPHERE |
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Plants and rhizosphere bacteria have evolved chemical signals that enable their mutual growth. These relationships have been well investigated with agriculturally important plants,...
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PROOF OF PHYTOREMEDIATION FOR EXPLOSIVES IN WATER AND SOIL |
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Field pilots prove the concept of using created treatment wetlands to restore groundwaters and flooded soils contaminated with explosives....
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PROSPECTS FOR ENHANCED GROUNDWATER RECHARGE VIA INFILTRATION OF URBAN STORMWATER RUNOFF: A CASE STUDY |
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The rain garden is an urban storm water best management practice that is used to infiltrate runoff close to its source, thereby disconnecting impervious area while providing an ave...
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PROSPECTS FOR IN SITU CHEMICAL TREATMENT FOR CONTAMINATED SOIL |
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Treating large volumes of contaminated soil at Superfund sites is costly. he Superfund Amendments and Reauthorization Act (SARA), and the Resource Conservation and Recovery Act (RC...
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PROTECTING ECOLOGICAL RESOURCES WITH THE CLEAN AIR ACT: THE ROLE OF SCIENCE |
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The Clean Air Act provides for establishing National Ambient Air Quality Standards (NAAQS) to protect public welfare (including crops, forests, ecosystems, and soils) from adverse ...
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PROTOCOL FOR THE ANALYSIS OF 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN BY HIGH-RESOLUTION GAS CHROMATOGRAPHY/HIGH-RESOLUTION MASS SPECTROMETRY |
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An analytical protocol for the determination of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and total TCDDs in soil, sediment and aqueous samples using high-resolution gas chromatog...
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PROVENANCE OF GEOGENIC ARSENIC IN THE GOOSE RIVER BASIN, MAINE, USA |
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Occurrences of arsenic (As) are sporadic in drinking water from many wells in mid-coastal Maine (ME). This is particularly the case where water supplies are pumped from fractured i...
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PRZM-2, A MODEL FOR PREDICTING PESTICIDE FATE IN THE CROP ROOT AND UNSATURATED SOIL ZONES: USERS MANUAL FOR RELEASE 2.0 |
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PRZM-2 links two subordinate models--PRZM and VADOFT--in order to predict pesticide transport and transformation down through the crop root and unsaturated zones. RZM is a one-dime...
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Phase 2, Determining the releasability of the asbestos fiber from soils and solid matrices. |
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Factors that affect the releasability or aerosolization of asbestos and related mineral fibers from a variety of sources need to be better understood to allow prediction and modeli...
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Pilot Scale In Situ BioTransformation Of Mercury-Contaminated Groundwater In Kazakhstan Utilizing Native Bacteria |
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The Northern outskirts of Pavlodar were contaminated with mercury as a result of activity at the former PO "Khimprom" chemical plant. The plant produced chlorine and alkali from t...
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Pilot Study on Demonstration of Remedial Action Technologies for Contaminated Land and Groundwater Volumes 1 and 2 EPA/600/SR-93/012 |
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This two-volume report presents information on a 5-yr pilot study (1986-
1991) sponsored by the North Atlantic Treaty Organization's (NATO) Committee on the Challenges of Modern S...
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Project Summary. THE RETC CODE FOR QUANTIFYING THE HYDRAULIC FUNCTIONS OF UNSATURATED SOILS |
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This summary describes the RETC computer code for analyzing the soil water retention and hydraulic conductivity functions of unsaturated soils. These hydraulic properties are key p...
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QUALITY ASSURANCE AND QUALITY CONTROL DATA VALIDATION PROCEDURES USED FOR THE LOVE CANAL AND DALLAS LEAD SOIL MONITORING PROGRAMS |
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Public awareness of soils contamination has increased in recent years due in part to the notoriety associated with the indiscriminate release, packaging, transporting and disposal ...
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QUALITY ASSURANCE PROJECT PLAN: TAMPA, FLORIDA WETLANDS STUDY |
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This project will compare characteristics of naturally occurring wetlands with wetlands created or restored as mitigation required under Section 404 of the Clean Water Act. t will ...
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QUALITY ASSURANCE PROJECT PLANS: A USELESS PAPER EXERCISE OR VALUABLE AID? |
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Two perspectives on the fundamental question "Are quality assurance project plans (QAPPS) a useless paper exercise or a valuable aid?" will be explored. These perspectives include ...
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QUANTIFICATION OF LEAK RATES THROUGH HOLES IN LANDFILL LINERS |
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A study was undertaken to evaluate the rate at which liquids leak through flaws in the flexible membrane liner (FML) component of composite FML-soil liners. The variables studied w...
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QUANTIFYING THE ORGANIC CARBON HELD IN FORESTED SOILS OF THE UNITED STATES AND PUERTO RICO |
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It is well known that soils are an important global reservoir of organic carbon (C). In fact, it has been estimated that at 1500 Pg (1Pg = 1015 g) world soils hold approximately t...
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QUANTIFYING THE ORGANIC CARBON HELD IN FORESTED SOILS OF THE UNITED STATES AND PUERTO RICO |
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Forested ecosystems provide a number of important services to humans. In addition to wood, fiber food and fuel production they also provide habitat for wildlife and a substantial ...
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QUANTITATION REFERENCE COMPOUNDS AND VOC RECOVERIES FROM SOILS BY PURGE AND TRAP GC/MS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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QUANTITATION REFERENCE COMPOUNDS AND VOC RECOVERIES FROM SOILS BY PURGE-AND-TRAP GC/MS |
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Unquantified volatile organic compound (VOC) losses occur in every phase of VOC determination including sample collection, transport, storage, preparation,and analysis. Current qua...
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QUANTITATIVE ASSESSMENT OF THE ADSORPTIVE BEHAVIOR OF VIRUSES TO SOILS |
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To evaluate the potential for groundwater contamination by viruses, it is essential to understand the processes controlling virus adsorption to soil. Recent laboratory studies have...
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QUANTITATIVE CHARACTERIZATION OF MICROBIAL BIOMASS AND COMMUNITY STRUCTURE IN SUBSURFACE MATERIAL: A PROKARYOTIC CONSORTIUM RESPONSIVE TO ORGANIC CONTAMINATION |
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Application of quantitative methods for microbial biomass, community structure, and nutritional status to the subsurface samples collected with careful attention to contamination r...
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QUANTITATIVE SOIL DESCRIPTIONS FOR ECOREGIONS OF THE UNITED STATES |
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Researchers have defined ecological regions of the United States based on patterns in the coincidence of terrestrial, aquatic, abiotic and biotic characteristics that are associate...
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QUICK INDICATOR TESTS TO CHARACTERIZE BENTONITE TYPE |
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Ten commercially available bentonite products representing unaltered, polymer protected, and chemically treated sodium bentonites were used in laboratory testing. The purpose was t...
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RADIO FREQUENCY ENHANCED DECONTAMINATION OF SOILS CONTAMINATED WITH HALOGENATED HYDROCARBONS |
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There has been considerable effort in the development of innovative treatment technologies for the clean up of sites containing hazardous wastes such as hydrocarbons and chlorinate...
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RADON REDUCTION TECHNIQUES FOR EXISTING DETACHED HOUSES - TECHNICAL GUIDANCE (THIRD EDITION) FOR ACTIVE SOIL DEPRESSURIZATION SYSTEMS |
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This technical guidance document is designed to aid in the selection, design, installation and operation of indoor radon reduction techniques using soil depressurization in existin...
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RAETRAD MODEL OF RADON GAS GENERATION, TRANSPORT, AND INDOOR ENTRY |
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The report describes the theoretical basis, implementation, and validation of the Radon Emanation and Transport into Dwellings (RAETRAD) model, a conceptual and mathematical approa...
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RAETRAD MODEL OF RADON GAS GENERATION, TRANSPORT, AND INDOOR ENTRY |
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The report describes the theoretical basis, implementation, and validation of the Radon Emanation and Transport into Dwellings (RAETRAD) model, a conceptual and mathematical approa...
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RAETRAD-F: VERSION 1.1 USER'S GUIDE FOR ANALYZING SITE-SPECIFIC MEASUREMENTS OF SOIL RADON POTENTIAL CATEGORY FOR FLORIDA HOUSES |
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The document describes RAETRAD-F (RAdon Emanation and TRAnsport into Dwellings--Florida), a computer code that provides a simple way to analyze site-specific soil measurements to e...
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RAPID ASSESSMENT OF POTENTIAL GROUND-WATER CONTAMINATION UNDER EMERGENCY RESPONSE CONDITIONS |
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Emergency response actions at chemical spills and abandoned hazardous waste sites often require rapid assessment of the potential for groundwater contamination by the chemical or w...
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RAPID PHASE IDENTIFICATION OF MIXED CRYSTALLINE SOLIDS |
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The identification of crystal phases and crystal chemistry can be critical to understanding the mechanisms of waste material interaction with native soils. nderstanding these mecha...
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RAPID POST-FIRE HYDROLOGIC WATERSHED ASSESSMENT USING THE AGWA GIS-BASED HYDROLOGIC MODELING TOOL |
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Rapid post-fire watershed assessment to identify potential trouble spots for erosion and flooding can potentially aid land managers and Burned Area Emergency Rehabilitation (BAER) ...
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RAPID PREDICTION OF LONG-TERM RATES OF CONTAMINANT DESORPTION FROM SOILS AND SEDIMENTS. (R825962) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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RATE OF FLOW OF LEACHATE THROUGH CLAY SOIL LINERS |
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The objective of this research was to measure the time of travel (TOT) of inorganic solutes through laboratory columns of compacted clay, to determine the physical and geochemical ...
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RATE-LIMITED TRANSPORT OF HYDROXYATRAZINE IN AN UNSATURATED SOIL. (R824772) |
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Unsaturated column experiments on an intact soil core were conducted under
two different soil pressure heads, -8 and -19 cm, to characterize chemical
sorption and desorp...
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RATIONALE FOR THE ASSESSMENT OF ERRORS IN THE SAMPLING OF SOILS |
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The sampling of soils in RCRA and Superfund monitoring programs requires associated quality assurance programs. ne objective of any quality assurance program is to assess and docum...
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RE-EVALUATION OF APPLICABILITY OF AGENCY SAMPLE HOLDING TIMES |
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Holding times are the length of time a sample can be stored after collection and prior to analysis without significantly affecting the analytical results. Holding times vary with ...
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REACTIONS OF CHROME TANNERY SLUDGE WITH ORGANIC AND MINERAL SOILS |
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Chrome tannery sludge applied to agricultural land may have benefits in terms of added N for crop growth. An experiment was designed to compare tannery waste with commercial N fert...
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REACTIVE MINERALS IN AQUIFERS: FORMATION PROCESSES AND QUANTITATIVE ANALYSIS |
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The presentation will focus on the occurrence, form, and characterization of reactive iron minerals in aquifers and soils. The potential for abiotic reductive transformations of c...
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RECOMMENDED FOUNDATION FILL MATERIALS CONSTRUCTION STANDARD OF THE FLORIDA RADON RESEARCH PROGRAM |
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The report summarizes the technical basis for a recommended foundation fill materials standard for new construction houses in Florida. he radon-control construction standard was de...
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RECOMMENDED FOUNDATION FILL MATERIALS CONSTRUCTION STANDARD OF THE FLORIDA RADON RESEARCH PROGRAM |
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The report summarizes the technical basis for a recommended foundation fill materials standard for new construction houses in Florida. he radon-control construction standard was de...
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RECOMMENDED STANDARDS AND PRACTICES FOR RADON RESISTANT PASSIVE CONSTRUCTION IN SLAB-ON-GRADE HOUSES |
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The paper gives results of a study to evaluate the effectiveness of the features of a draft standard (developed by the State of Florida) for controlling radon entry in new houses b...
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RECONNAISSANCE FOR ARSENIC, ESTRADIOL, ANTIBIOTICS, AND MICROBIAL RESISTANCE IN POULTRY-DOMINATED CHESAPEAKE BAY WATERSHEDS |
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There are concerns about the effects from the high density of poultry feeding operations and the extensive use of feed amendments on water quality in the Shenandoah Valley in Virgi...
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RECONNAISSANCE STUDY OF LEACHATE QUALITY FROM RAW MINED OIL SHALE - LABORATORY COLUMNS |
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This report presents the results of the chemical characterization of leachates generated from laboratory columns of several unretorted mined oil shales, unmined shales, and soils. ...
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RECONSTRUCTING EXPOSURE SCENARIOS USING DOSE BIOMARKERS - AN APPLICATION OF BAYESIAN UNCERTAINTY ANALYSIS |
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We use Bayesian uncertainty analysis to explore how to estimate pollutant exposures from biomarker concentrations. The growing number of national databases with exposure data ma...
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RECONSTRUCTION AND ANALYSIS OF HISTORICAL CHANGES IN CARBON STORAGE IN ARCTIC TUNDRA |
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Surface air temperature in arctic regions has increased since pre-industrial times, raising concerns that warmer and possibly drier conditions have increased soil decomposition rat...
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RECOVERY OF DNA FROM SOILS AND SEDIMENTS |
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Experiments were performed to evaluate the effectiveness of different methodological approaches for recovering DNA from soil and sediment bacterial communities; cell extraction fol...
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REDUCING CHILDREN'S RISK TO SOIL LEAD: SUMMARY OF A FIELD EXPERIMENT TO REDUCE SOIL LEAD BIOAVAILABILITY |
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Reducing risks associated with Pb in soil has typically been accomplished by soil removal, covering, or dilution by mixing with uncontaminated soil. EPA's National Risk Management...
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REDUCING CHILDREN'S RISK TO SOIL LEAD: SUMMARY OF A FIELD EXPERIMENT TO REDUCE SOIL LEAD BIOAVAILABILITY (ABSTRACT) |
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Reducing risks associated with Pb in soil has typically been accomplished by soil removal, covering, or dilution by mixing with uncontaminated soil. EPA's National Risk Management...
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REDUCING RISK FROM SOIL METALS: SUMMARY OF A FIELD EXPERIMENT |
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Lead (Pb) poisoning is the most common and most serious environmental disease affecting young children, according to the Centers for Disease Control and Prevention (CDC). During th...
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REDUCTIVE DECHLORINATION OF CHLOROPHENOLS IN SLURRIES OF LOW-ORGANIC-CARBON MARINE SEDIMENTS AND SUBSURFACE SOILS |
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NO ABSTRACT PROVIDED...
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REDUCTIVE DEHALOGENATION OF ORGANIC CONTAMINANTS IN SOILS AND GROUND WATER |
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Introduction and large scale production of synthetic halogenated organic chemicals over the last 50 years has resulted in a group of contaminants which tend to persist in the envir...
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REDUCTIVE DETOXIFICATION AND IMMOBILIZATION OF CHROMATE PRESENT IN SOILS |
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The in-situ permeable reactive barrier at the U.S. Coast Guard Air Support Center at Elizabeth City, North Carolina is very effective in remediating the contaminant plumes of TCE a...
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REDUCTIVE DETOXIFICATION AND IMMOBILIZATION OF CHROMATE PRESENT IN SOILS |
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Sodium dithionite was used to treat a chromium source zone in soils beneath an old chrome plating shop. The sodium dithionite was injected as a buffered solution into the soils to ...
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REFINING THE DUAL ISOTOPE APPROACH TO DETERMINE FIELD ESTIMATES OF LITTER, ROOT, AND SOM COMPONENTS OF SOIL CO2 EFFLUX |
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Stable isotopes have become an important tool for determining the relative importance of CO2 sources and sinks contributing to the global carbon budget. Of particular importance i...
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REFORESTATION AND SEEDLING SYMBIONTS |
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Tree seedlings are dependent on symbiotic associations with microorganisms including bacteria, fungi, and actinomycetes for normal growth and development. itrogen fixing leguminous...
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REGIONAL RELATIONSHIPS BETWEEN GEOMORPHIC/HYDROLOGIC PARAMETERS AND SURFACE WATER CHEMISTRY RELATIVE TO ACIDIC DEPOSITION |
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We determined geomorphic and hydrologic parameters for 144 forested, lake watersheds in the Northeast (NE) of the United States based primarily on measurements from topographic map...
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REGIONAL SOIL WATER RETENTION IN THE CONTIGUOUS US: SOURCES OF VARIABILITY AND VOLCANIC SOIL EFFECTS |
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Water retention of mineral soil is often well predicted using algorithms (pedotransfer functions) with basic soil properties but the spatial variability of these properties has not...
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REGIONALIZATION OF THE WESTERN CORN BELT PLAINS ECOREGION |
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As part of a larger effort to study the fate and transport of agrichemicals in the midwestern United States, the U.S. Environmental Protection Agency commissioned a study of spatia...
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REGULATORY PROGRAMS. USEPA PERSPECTIVE ON THE REMEDIATION OF CONTAMINATED WOOD PRESERVING SITES. |
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Since the enactment of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and the Resource Conservation and Recovery Act (RCRA), as amended, many dir...
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RELATIONSHIP BETWEEN THE CONCENTRATION OF DENITRIFIERS AND PSEUDOMONAS SPP. IN SOILS: IMPLICATIONS FOR BTX BIOREMEDIATION (R823420) |
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Aquifer microcosms were used to investigate the effect of stimulating denitrification on microbial population shifts and BTX degradation potential. Selective pressure
for facult...
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RELATIONSHIP OF CATCHMENT TOPOGRAPHY AND SOIL HYDRAULIC CHARACTERISTICS TO LAKE ALKALINITY IN THE NORTHEASTERN U.S. |
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We took the task of determining whether base flow alkalinity of surface waters in the northeastern United States is related to indices of soil contact time and flow path partitioni...
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RELATIONSHIP OF MICROBIAL COMMUNITY STRUCTURE AND CARBON DYNAMICS IN SOILS FROM BRAZILIAN SAVANNAS |
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Fertilization is a widespread management practice in savanna areas of central Brazil (Cerrado) that are undergoing rapid agricultural land use changes. We conducted field and labor...
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RELATIONSHIPS OF EUTROPHICATION TO THE DISTRIBUTION OF MERCURY AND TO THE POTENTIAL FOR METHYLMERCURY PRODUCTION IN THE PEAT SOILS OF THE EVERGLADES |
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NO ABSTRACT PROVIDED...
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RELATIVE CONGENER SCALING OF POLYCHLORINATED DIBENZO-P-DIOXINS AND DIBENZOFURANS TO ESTIMATE BUILDING FIRE CONTRIBUTIONS IN AIR, SURFACE WIPES, AND DUST SAMPLES |
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EPA collected ambient air samples in lower Manhattan for about nine months following the September 11, 2001 (9/11) World Trade Center (WTC) attacks. Measurements were made of a ho...
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RELEASE OF CHEMICALS FROM CONTAMINATED SOILS. (R822721C529) |
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At sites that contain contaminated soils, there can be questions about the magnitude of risk posed by the chemicals in the soils and about the cleanup levels that should be achi...
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REMEDIATION OF CONTAMINATED SOILS BY SOLVENT FLUSHING |
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Solvent flushing is a potential technique for remediating a waste disposal/spill site contaminated with organic chemicals. his technique involves the injection of a solvent mixture...
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REMEDIATION OF LOW PERMEABILITY SUBSURFACE FORMATIONS BY FRACTURING ENHANCEMENT OF SOIL VAPOR EXTRACTION |
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This paper describes the Superfund Innovative Technology Evaluation (SITE) of pneumatic and hydraulic fracturing to augment and improve the extraction of volatile contaminants from...
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REMEDIATION OF SOILS CONTAMINATED WITH WOOD PRESERVING WASTES: CROSSCURRENT AND COUNTERCURRENT SOLVENT WASHING |
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solvent washing was evaluated as a method to remove pentachlorophenol (PCP) from aged field soils contaminated with wood treating wastes. Several soil:solvent contact ratios were c...
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REMOBILIZATION OF TOXIC HEAVY METALS ADSORBED TO BACTERIAL WALL-CLAY COMPOSITES |
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Significant quantities of Ag(I), Cu(II), and Cr(III) were bound to isolated Bacillus subtilis 168 walls, Escherichia coli K-12 envelopes, kaolinite and smectite clays, and the corr...
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REMOTE SENSING FOR DETECTING SWINE ANIMAL FEEDING OPERATIONS |
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Surface runoff from animal feeding operations (AFO's) and its infiltration into ground water can
pose a number of risks to water quality mainly because of the amount of animal ...
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REMOTE SENSING OF PERCHLORATE EFFECTS ON SALT CEDAR PRELIMINARY RESULTS FROM THE LAS VEGAS WASH |
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Sodium Perchlorate and ammonium Perchlorate, major components of solid rocket fuel, have been manufactured in the Las Vegas Valley immediately up gradient from the Las Vega...
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REMOVAL OF CREOSOTE FROM SOIL BY THERMAL DESORPTION |
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Performance of the thermal desorption process for removal of organic contaminants, mostly polynuclear aromatic hydrocarbons (PAHs), from soils was evaluated. uperfund Site Soil tha...
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REMOVAL OF NONVOLATILE HYDROPHOBIC ORGANIC COMPOUNDS FROM ARTIFICIALLY AND NATURALLY CONTAMINATED SOILS BY COLUMN FLOTATION. (R825511C049) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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REMOVAL OF PCBS FROM CONTAMINANT SOIL USING THE CF-SYSTEMS SOLVENT EXTRACTION PROCESS: A TREATABILITY STUDY |
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Soil samples were obtained from the Springfield Township Superfund Site, Davisburg Michigan. hese samples were collected from a specific area of that site which was known to have s...
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REMOVAL OF PCBS FROM CONTAMINATED SOIL USING THE CF-SYSTEMS SOLVENT EXTRACTION PROCESS: A TREATABILITY STUDY |
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Soil samples were obtained from the Springfield Township Superfund Site, Davisburg Michigan. These samples were collected from a specific area of that site which was known to have ...
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REMOVAL OF RADIONUCLIDES BY ELECTROKINETIC SOIL PROCESSING |
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The Superfund Innovative Technology Evaluation (SITE) Program was authorized as part of the Superfund Amendments and Reauthorization Act (SARA) of 1986. his program addresses the n...
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REPORT ON THE FEASIBILITY OF APEG DETOXIFICATION OF DIOXIN-CONTAMINATED SOILS |
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The project was designed to verify in proof-of-principle studies, the efficacy of newly developed chemical reagents to destroy 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) dissolved ...
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REPRESENTATIVE SAMPLING AND ANALYSIS OF HETEROGENEOUS SOILS |
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Standard sampling and analysis methods for hazardous substances in contaminated soils currently are available and routinely employed. Standard methods inherently assume a homogene...
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REPRESENTATIVE SAMPLING AND ANALYSIS OF HETEROGENEOUS SOILS |
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Standard sampling and analysis methods for hazardous substances in contaminated soils currently are available and routinely employed. Standard methods inherently assume a homogene...
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REPRESENTATIVE SAMPLING AND ANALYSIS OF HETEROGENEOUS SOILS |
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Standard sampling and analysis methods for hazardous substances in contaminated soils currently are available and routinely employed. Standard methods inherently assume a homogene...
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RESEARCH NEEDED TO IMPROVE HEALTH AND ECOLOGICAL RISK ASSESSMENTS FOR OZONE (SECOND EXTERNAL REVIEW DRAFT) |
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Ozone is one of six criteria air pollutants whose ambient concentrations are regulated under the National Ambient Air Quality Standards (NAAQS) established by the U.S. Clean Air Ac...
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RESEARCH PLAN AND METHODS MANUAL FOR THE OREGON WETLANDS STUDY |
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The goals of the Oregon Wetlands Study are to develop a monitoring method for characterizing and comparing natural and project freshwater, emergent wetlands in different land use s...
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RESIDENTIAL RADON RESISTANT CONSTRUCTION FEATURE SELECTION SYSTEM |
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The report describes a proposed residential radon resistant construction feature selection system. The features consist of engineered barriers to reduce radon entry and accumulatio...
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RESOURCES CONSERVATIONS COMPANY - B.E.S.T. SOLVENT EXTRACTION TECHNOLOGY - APPLICATIONS ANALYSIS REPORT |
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This document is an evaluation of the performance of the Resources Conservation Company (RCC) Basic Extractive Sludge Treatment (B.E.S.T.®) solvent extraction technology and its ap...
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RESPONSE OF SOIL MICROBIAL BIOMASS AND COMMUNITY COMPOSITION TO CHRONIC NITROGEN ADDITIONS AT HARVARD FOREST |
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Soil microbial communities may respond to anthropogenic increases in ecosystem nitrogen (N) availability, and their response may ultimately feedback on ecosystem carbon and N dynam...
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RESPONSE OF TALL FESCUE, BUSH BEAN, AND MAIZE TO CHROME TANNERY SLUDGE IN SOILS |
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Tannery sludge was compared with commercial nitrogen fertiliser to investigate its potential use as an alternative to commercial fertiliser. Soils containing 38% and 7% organic car...
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RESPONSES OF SALIX GOODDINGII AND TAMARIX RAMOSISSIMA TO FLOODING |
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Impoundments create artificial shorelines that differ from natural lake shorelines in patterns of water-level fluctuations, flow, sediment transport, and shoreline vegetation dynam...
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RESTORATION OF METAL CONTAMINATED SOILS USING BIOSOLIDS |
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Biosolids in combination with different types of limestone have been applied to metal mine tailings in Bunker Hill, ID, Leadville, Co, Joplin, MO and Tar Creek, OK. For each of th...
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RESULTS OF TREATMENT EVALUATIONS OF CONTAMINATED SOILS |
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Soil and debris from Superfund sites must be treated to minimize their threat to human health and the environment as part of remedial actions at such sites. Studies were conducted ...
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RETC CODE FOR QUANTIFYING THE HYDRAULIC FUNCTIONS OF UNSATURATED SOILS |
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This report describes the RETC computer code for analyzing the soil water retention and hydraulic conductivity functions of unsaturated soils. hese hydraulic properties are key par...
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RETENSION AND TRANSFORMATION OF SELECTED PESTICEDES AND PHOSPHORUS IN SOIL-WATER SYSTEMS: A CRITICAL REVIEW |
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The current state-of-the-art for measuring or estimating pesticide retention and transformation parameters required in nonpoint source pollution models was reviewed. A data base of...
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RETENTION OF LIQUID CONTAMINANTS IN LAYERED SOILS. (R825549C063) |
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Observations of organic contaminant liquids retained in layered soil profiles indicate contaminant saturations much greater than residual, where residual saturation would be exp...
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REVIEW AND EVALUATION OF THE INFLUENCE OF CHEMICALS ON THE CONDUCTIVITY OF SOIL CLAYS |
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A study was undertaken to ascertain the effects of organic solvents on compacted soils. Laboratory measurements showed that clay initially dispersed in water will flocculate as the...
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REVIEW OF IN-PLACE TREATMENT TECHNIQUES FOR CONTAMINATED SURFACE SOILS. VOLUME 1. TECHNICAL EVALUATION |
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This two-volume report presents information on in-place treatment technologies applicable to contaminated soils at shallow depths. This volume discusses the selection of the approp...
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REVIEW OF IN-PLACE TREATMENT TECHNIQUES FOR CONTAMINATED SURFACE SOILS. VOLUME 2. BACKGROUND INFORMATION FOR IN SITU TREATMENT |
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This two-volume report presents information on in-place treatment technologies applicable to contaminated soils at shallow depths. This volume provides background information and r...
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REVIEW OF LINER AND CAP REGULATIONS FOR LANDFILLS |
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The U.S. Environmental Protection Agency through its research and field experiences has developed control strategies for hazardous and municipal solid waste landfills and surface i...
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REVIEW OF PLANT UPTAKE OF 2,3,7,8-TCDD FROM SOIL AND POTENTIAL INFLUENCES OF BIOAVAILABILITY |
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Volatilization of 2,3,7,8-TCDD from soil and resorption on foliage represents a significant route of contamination. ome studies indicate low-level uptake, translocation from roots ...
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RIPARIAN AREAS OF AN AGRICULTURAL LANDSCAPE IN WESTERN OREGON |
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The Willamette Valley is a productive, diversified agricultural area in western Oregon. Pastureland and grass seed fields, mostly located on poorly drained soils, account for 60% ...
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RISING ATMOSPHERIC CO2 AND CARBON SEQUESTRATION IN FORESTS |
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A growing number of public officials, scientists, and members of the public and private sector suggest that the effects of climate change could affect the environment and economy o...
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RISK ASSESSMENT AND MANAGEMENT OF ENVIRONMENTAL CADMIUM |
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Cadmium consumed in foods grown on soils contaminated by industrial Cd+Zn discharge has caused renal tubular dysfunction in
exposed humans in discrete situations. However, ...
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RISK ASSESSMENT AND REMEDIATION OF SOILS CONTAMINATED BY MINING AND SMELTING OF LEAD, ZINC AND CADMIUM |
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Mining nd smelting of Pb, Zn and Cd ores have caused widespread soil contamination in many countries. In locations with severe soil contamination, and strongly acidic soil or mine ...
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RISK ASSESSMENT FOR CADMIUM IN PHOSPHATE FERTILIZERS |
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Cadmium induced renal tubular dysfunction occurred where subsistence rice farmers produced their lifetime dietary rice on Zn-mine waste contaminated soils in Japan and other Asian ...
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RISK ASSESSMENT FOR ORGANIC MICROPOLLUTANTS: U.S. POINT OF VIEW |
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Basic research and monitoring of sludge utilization programs have identified specific pathways by which potentially toxic constituents of sewage sludge can reach and cause toxicity...
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RISK CHARACTERIZATION OF DIOXINS |
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2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD; "Dioxin") is the most toxic member of a family of structurally related compounds which are ubiquitous environmental pollutants. ...
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RISK CHARACTERIZATION OF DIOXINS FOR EUROTOX 2005 |
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2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD or Dioxin ) is the most toxic member of a family of structurally related compounds which are ubiquitous environmental pollutants. The mo...
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RISK OF UNSATURATED/SATURATED TRANSPORT AND TRANSFORMATION OF CHEMICAL CONCENTRATIONS (RUSTIC): VOLUME 1. THEORY AND CODE VERIFICATION |
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The RUSTIC program links three subordinate models--PRZM, VADOFT, and SAFTMOD--in order to predict pesticide transport and transformation through the crop root zone, the unsaturated...
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ROLE OF ENTRAINERS IN SUPERCRITICAL FLUID EXTRACTION OF CHLORINATED AROMATICS FROM SOILS. (R825549C011) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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ROLE OF IRON AND MANGANESE OXIDES IN BIOSOLIDS AND BIOSOLIDS-AMENDED SOILS ON METAL BINDING |
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Biosolids contain high levels of Fe, Mn, and Al. Surfaces of freshly precipitated metal oxides, especially Fe and Mn, are known to be highly active sites for most dissolved metal i...
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ROLE OF PRECIPITATION CHEMISTRY VERSUS OTHER WATERSHED PROPERTIES IN WISCONSIN LAKE ACIDIFICATION |
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Data for over 100 watershed properties, including aspects of topography, hydrology, geology, soils, vegetation, lake morphometry and input precipitation chemistry, have been develo...
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ROLE OF SOIL ORGANIC ACIDS IN MINERAL WEATHERING PROCESSES |
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The soluble organic acids in soils consist largely of complex mixtures of polymeric compounds referred to collectively as fluvic and humic acids. These compounds are relatively ref...
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SAMPLERS AND SAMPLING PROCEDURES FOR HAZARDOUS WASTE STREAMS |
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The goal of this project was to develop simple but effective sampling equipment and procedures for collecting, handling, storing, and recording samples of hazardous wastes. The rep...
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SANDIA NATIONAL LABORATORIES IN SITU ELECTROKINETIC EXTRACTION TECHNOLOGY; INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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As a part of the Superfund Innovative Technology Evaluation (SITE) Program, the U.S. Environmental Protection Agency evaluated the In-Situ Electrokinetic Extraction (ISEE) system a...
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SAURER REGEN, EINE FOLGE DER STOERUNG HYDROGEOCHEMISCHER KREISLAEUFE (ACID RAIN, A CONSEQUENCE OF MAN'S ALTERATION OF HYDROGEOCHEMICAL CYCLES) |
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The occurrence of acid precipitation in regions of the northern hemisphere results from the anthropogenic disturbance of cycles that couple land, water and atmosphere. The oxidatio...
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SCREENING MODEL FOR VOLATILE POLLUTANTS IN DUEL POROSITY SOILS: JOURNAL ARTICLE |
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NRMRL-ADA-00230
Hantush*, M.M., Govindaraju, R.S., and Marino, M.A. Screening Model for Volatile Pollutants in Duel
Porosity Soils. Journal of Hydrology 260:58-74 (2000). EPA/600/...
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SCREENING MODEL FOR VOLATILE POLLUTANTS IN DUEL POROSITY SOILT |
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This paper develops mass fraction models for transport and fate of volatile organic chemicals, such as pesticides, in two-region soils. It addressed two main and interrelated part...
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SCREENING MODELS TO PREDICT PROBABILITY OF CONTAMINATION BY PATHOGENIC VIRUSES IN DRINKING WATER AQUIFERS |
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The Safe Drinking Water Act's 1996 Amendments broadened the definition of public water systems (PWS) to include systems which serve drinking water to as few as 25 individuals. Impl...
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SEASONAL BEHAVIOR OF PARTICULATE MATTER AT THREE RURAL UTAH SITES |
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Elemental analysis of size-segregated particulate samples for three rural Utah sites is presented and discussed. Daily samples were collected at each site in three size ranges (15-...
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SEASONAL VARIATIONS OF NITRIC OXIDE FLUX FROM AGRICULTURAL SOILS IN THE SOUTHEAST UNITED STATES |
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Fluxes of nitric oxide (NO) were measured from the summer of 1994 to the spring of 1995 from an intensively managed agricultural soil using a dynamic flow through chamber technique...
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SEDIMENT- AND SATURATED-SOIL-ASSOCIATED REACTIONS INVOLVING AN ANIONIC SURFACTANT (DODECYLSULFATE) 2. PARTITION OF PAH COMPOUNDS AMONG PHASES |
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The distribution of either pyrene, phenanthrene, or naphthalene between several different sediment or soil solid phases (media) and aqueous phases containing dodecylsulfate (DS) mi...
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SEDIMENT-ASSOCIATED REACTIONS OF AROMATIC AMINES. 2. QSAR DEVELOPMENT |
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The fate of aromatic amines in soils and sediments is dominated by irreversible binding through nucleophilic addition and oxidative radical coupling. Despite the common occurrence...
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SEDIMENT-ASSOCIATED REACTIONS OF AROMATIC AMINES: 1. ELUCIDATION OF SORPTION MECHANISMS |
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Sorption of aromatic amines to sediments and soils can occur by both reversible physical processes and irreversible chemical processes. To elucidate the significance of these sorpt...
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SEDIMENT-ASSOCIATED REACTIONS OF AROMATIC AMINES: QSAR DEVELOPMENT |
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Despite the common occurrence of the aromatic amine functional group in environmental contaminants, few quantitative structure-activity relationships (QSARs) have been developed to...
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SELECTION AND TEST OF EFFECTIVE CHELATORS FOR REMOVAL OF HEAVY METALS FROM CONTAMINATED SOILS. (R825549C052) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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SEMI-EMPIRICAL ESTIMATION OF SORPTION OF HYDROPHOBIC POLLUTANTS ON NATURAL SEDIMENTS AND SOILS |
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Methods were developed for estimating the equilibrium sorption behavior of hydrophobic pollutants. At low pollutant concentration (aqueous phase concentrations less than half the s...
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SEMINAR PUBLICATION: DESIGN AND CONSTRUCTION OF RCRA/CERCLA FINAL COVERS |
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Cover systems are an essential part of all land disposal facilities. Covers control moisture infiltration from the surface into closed facilities and limit the formation of leachat...
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SEMINAR PUBLICATION: SITE CHARACTERIZATION FOR SUBSURFACE REMEDIATION |
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This seminar publication provides a comprehensive approach to site characterization for subsurface remediation. Chapter 1 describes a methodology for integrating site characterizat...
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SEMIQUANTITATIVE ANALYSIS BY X-RAY POWDER DIFFRACTION (SQXRD) OF THE 2 MM TO 0.002 MM AND 0.002 MM FRACTIONS OF SOIL (JOURNAL VERSION) |
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The method described in the paper is a strict protocol for X-ray diffraction (XRD) analysis of mineral phases found in soils. Its application is not restricted to soils and is an a...
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SENSITIVITY OF SOIL REGIONS TO ACID PRECIPITATION |
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Atmospheric deposition of acid and other materials may pose a significant threat to some soils and the ecosystems they support. The project objective was to develop maps of the eas...
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SEPARATION OF ALGAL CELLS FROM WASTEWATER LAGOON EFFLUENTS. VOLUME III: SOIL MANTLE TREATMENT OF WASTEWATER STABILIZATION POND EFFLUENT - SPRINKLER IRRIGATION |
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Lysimeter studies and a two-year field study were conducted to evaluate the efficiency of sprinkler irrigation wastewater treatment as a means of polishing wastewater stabilization...
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SEPARATION OF HAZARDOUS ORGANICS BY LOW PRESSURE MEMBRANES: TREATMENT OF SOIL-WASH RINSE WATER LEACHATES |
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Soil washing is a promising technology for treating contaminated soils. n the present work, low-pressure, thin-film composite membranes were evaluated to treat he soil-wash leachat...
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SEPARATION OF HAZARDOUS ORGANICS BY LOW PRESSURE MEMBRANES: TREATMENT OF SOIL-WASH RINSE-WATER LEACHATES |
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Soil washing is a promising technology for treating contaminated soils. In the present work, low-pressure, thin-film composite membranes were evaluated to treat the soil-wash leach...
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SEQUENTIAL EXTRACTIONS FOR PARTITIONING OF ARSENIC ON HYDROUS IRON OXIDES AND IRON SULFIDES |
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The objective of this study was to use model solids to test solutions designed to extract arsenic from relatively labile solid phase fractions. The use of sequential extractions p...
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SEQUESTERING CARBON IN SOIL: A WORKSHOP TO EXPLORE THE POTENTIAL FOR MITIGATING GLOBAL CLIMATE CHANGE |
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This workshop was an excellent forum for a scientific debate on the potential of soils to sequester additional carbon from the atmosphere. wo primary conclusions can be drawn from ...
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SEQUESTRATION OF HYDROPHOBIC ORGANIC CONTAMINANTS BY GEOSORBENTS. (R822626) |
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The chemical interactions of hydrophobic organic contaminants (HOCs) with soils and sediments (geosorbents) may result in strong binding and slow subsequent release rates that s...
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SETTING UP A LABORATORY AB INITIO IN A REMOTE LOCATION |
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For many years the USEPA's National Risk Management Research Laboratory in Cincinnati, OH has operated a pilot plant approximately 5 kilometers from its main research facility. Ori...
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SEVESO WOMEN'S HEALTH STUDY: DOES ZONE OF RESIDENCE PREDICT INDIVIDUAL TCDD EXPOSURE? (R824761) |
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The compound, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), is produced as an unwanted by-product of various chemical reactions and combustion processes, including the manufac...
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SEWAGE DISPOSAL ON AGRICULTURAL SOILS: CHEMICAL AND MICROBIOLOGICAL IMPLICATIONS. VOLUME I. CHEMICAL IMPLICATIONS |
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The city of San Angelo, Texas, has used sewage effluent which has undergone primary treatment for irrigation of the same 259-hectare sewage farm since 1958. The impact of 18 years ...
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SEWAGE DISPOSAL ON AGRICULTURAL SOILS: CHEMICAL AND MICROBIOLOGICAL IMPLICATIONS. VOLUME II. MICROBIOLOGICAL IMPLICATIONS |
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The city of San Angelo, Texas, has been using agricultural land for decades as a means of disposing of all of its municipal sewage after primary treatment. Water applications have ...
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SEWAGE SLUDGE VERSUS COMMERCIAL METHODS FOR RECLAIMING STRIP-MINE SOILS |
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Municipal sewage sludge has been reported to be useful in reclaiming strip-mined soils for revegetation and row crop agriculture. Commercial methods using top soil replacement, lim...
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SEWAGE SLUDGE VIRAL AND PATHOGENIC AGENTS IN SOIL-PLANT-ANIMAL SYSTEMS |
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A multidisciplinary study was carried out to determine the ultimate fate of various toxic elements or pathogens associated with Florida and Chicago municipal sludges when applied t...
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SHIRCO PILOT-SCALE INFRARED INCINERATION SYSTEM AT THE ROSE TOWNSHIP DEMODE ROAD SUPERFUND SITE |
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Under the Superfund Innovative Technology Evaluation or SITE Program, an evaluation was made of the Shirco Pilot-Scale Infrared Incineration System during 17 separate test runs un...
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SHORT-TERM CHANGES IN THE BASE NEUTRALIZING CAPACITY OF AN ACID ADIRONDACK LAKE, NEW YORK |
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Concern and controversy over the effects of acidic deposition on low ionic strength surface wa ters has led to much discussion on the nature and extent of proton transformations wi...
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SILICATE TECHNOLOGY CORPORATION'S SOLIDIFICATION/ STABILIZATION TECHNOLOGY FOR ORGANIC AND INORGANIC CONTAMINANTS IN SOILS - APPLICATIONS ANALYSIS REPORT |
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This Applications Analysis Report evaluates the solidification/stabilization treatment process of Silicate Technology Corporation (STC) for the on-site treatment of hazardous waste...
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SILICATE TECHNOLOGY CORPORATION'S SOLIDIFICATION/STABILIZATION TECHNOLOGY FOR ORGANIC AND INORGANIC CONTAMINANTS IN SOILS |
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The STC demonstration was conducted under EPA's Superfund Innovative Technology Evaluation (SITE) Program in November, 1990, at the Selma Pressure Treating (SPT) wood preserving si...
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SIMPLE METHOD FOR ESTIMATING POLYCHLORINATED BIPHENYL CONCENTRATIONS ON SOILS AND SEDIMENTS USING SUBCRITICAL WATER EXTRACTION COUPLED WITH SOLID-PHASE MICROEXTRACTION. (R825368) |
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A rapid method for estimating polychlorinated biphenyl (PCB) concentrations in contaminated soils and sediments has been developed by coupling static subcritical water extractio...
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SIMULATION OF NUTRIENT LOSS FROM SOILS DUE TO RAINFALL ACIDITY |
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This paper describes a simulation model that provides a quantitative system utilizing established relationships from soil chemistry to predict the most likely effect of rainfall ac...
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SIMULATION OF SOLUTE TRANSPORT IN AGGREGATED MEDIA |
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The model presented in this study describes colute transport in soil columns by considering aggregate size distribution. n iterative numerical scheme is introduced to implement the...
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SIMULATION PROCEDURE FOR GROUNDWATER QUALITY ASSESSMENTS OF PESTICIDES |
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A procedure is described for making regional assessments of pesticide residue loadings and movement in groundwater underneath and downgradient from treated fields. A Monte-Carlo nu...
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SIMULTANEOUS DESTRUCTION OF ORGANICS AND STABILIZATION OF METALS IN SOILS |
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The Sulchem Process reacts the material being treated with elemental sulfur at elevated temperatures in an inert reactor system. Organic hydrocarbons react with the sulfur to form ...
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SIMULTANEOUS INHIBITION OF CARBON AND NITROGEN MINERALIZATION IN A FOREST SOIL BY SIMULATED ACID PRECIPITATION |
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Acid Precipitation may alter the rates of microbial processes in soil that are important for forest productivity. Acidification of soil can result in a depression of carbon mineral...
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SITE CHARACTERIZATION AND THERMAL REMEDIATION TREATABILITY STUDIES FOR TWO WOOD TREATER SITES |
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Assessment of the applicability of thermal remediation at two wood treater sites is ongoing. The two wood treaters had been in operation for 50 to 80 years, and a variety of wood ...
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SITE CHARACTERIZATION OF A CHROMIUM SOURCE AREA AT THE USCG SUPPORT CENTER, ELIZABETH CITY, NC |
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The chrome source area is located beneath an old electroplating shop at the United States Coast Guard Support Center near Elizabeth City, NC . This electroplating shop was in |
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SITE CHARACTERIZATION OF A CHROMIUM SOURCE AREA AT THE USCG SUPPORT CENTER, ELIZABETH CITY, NC: SYMPOSIUM |
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NRMRL-ADA-02113
Paul*, C.J., Khan*, F.A., and Puls*, R.W. Site Characterization of a Chromium Source Area at the
USCG Support Center, Elizabeth City, NC. 2002 Intl. Ground Water ...
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SITE CHARACTERIZATION OF A CHROMIUM SOURCE AREA AT THE USGS SUPPORT CENTER, ELIZABETH CITY, NC |
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Chromic and sulfuric acid wastes had discharged through a hole in the concrete floor of a chrome-plating shop located within a hangar at the U.S. Coast Guard Support Center near El...
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SITE DEMONSTRATION BULLETIN: SOIL RECYCLING TREATMENT TRAIN - THE TORONTO HARBOUR COMMISSIONERS |
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The Toronto Harbour Commissioners (THC) have developed a soil treatment train designed to treat inorganic and organic contaminants in soils. THC has conducted a large-scale demons...
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SITE DEMONSTRATION OF THE TORONTO HARBOUR COMMISSIONERS SOIL RECYCLING PROJECT |
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The U.S. Environmental Protection Agency (EPA), in cooperation with the Toronto Harbour Commission (THC), conducted a Superfund Innovative Technology Evaluation (SITE) demonstratio...
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SITE EMERGING TECHNOLOGY REPORT: INNOVATIVE METHODS FOR BIOSLURRY TREATMENT |
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IT Corporation (IT), Knoxville, Tennessee, in collaboration with U.S. Environmental protection Agency (EPA), investigated the feasibility of combined biological and chemical oxidat...
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SITE EVALUATION OF SOIL AMENDMENT TECHNOLOGIES AT THE CROOKSVILLE/ROSEVILLE POTTERY AREA OF CONCERN - STAR ORGANICS SOIL RESCUE INNOVATIVE TECHNOLOGY EVALUATION REPORT (ITER) |
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Star Organics, L.L.C., of Dallas, Texas (Star Organics) has developed Soil Rescue to treat soil contaminated with metals. Star Organics claims that Soil Rescue forms metal complex...
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SITE PROGRAM APPLICATIONS ANALYSIS REPORT, INTERNATIONAL WASTE TECHNOLOGIES/GEO CON IN-SITU STABILIZATION/SOLIDIFICATION |
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An evaluation was performed of the International Waste Technologies (IWT) HWT-20 additive and the Geo-Con, Inc. deep-soil-mixing equipment for an in situ stabilization/solidificati...
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SITE TECHNOLOGY CAPSULE DEMONSTRATION OF ROCKY MOUNTAIN REMEDIATION SERVICES SOIL AMENDMENT PROCESS |
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RMRS developed the Envirobond� process to treat heavy metals in soil.This phosphate-based technology consists of a proprietary powder and solution that binds with metals in contami...
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SITE TECHNOLOGY CAPSULE: BIOGENESIS SOIL WASHING TECHNOLOGY |
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Soil washing technologies are designed to transfer contaminants from soil to a liquid phase. The BloGenesis™ soil washing technology uses a proprietary surfactant solution to trans...
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SITE TECHNOLOGY CAPSULE: CLEAN BERKSHIRES, INC. - THERMAL DESORPTION SYSTEM |
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The thermal desorption process devised by Clean Berkshires, Inc., works by vaporizing the organic contaminants from the soil with heat, isolating the contaminant! in a gas stream, ...
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SITE TECHNOLOGY CAPSULE: CLEAN BERKSHIRES, INC. THERMAL DESORPTION SYSTEM |
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The thermal desorption process devised by Clean Berkshires, Inc., works by vaporizing the organic contaminants from the soil with heat, isolating the contaminant! in a gas stream, ...
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SITE TECHNOLOGY CAPSULE: GEOSAFE CORPORATION IN SITU VITRIFICATION TECHNOLOGY |
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The Geosafe In Situ Vitrification (ISV) Technology is designed to treat soils, sludges, sediments, and mine tallings contaminated with organic, inorganic, and radioactive compounds...
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SITE TECHNOLOGY CAPSULE: GEOSAFE CORPORATION IN-SITU VITRIFICATION (ISV) TECHNOLOGY |
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The Geosafe In Situ Vitrification Technology is designed to treat soils, sludges, sediments, and mine tailings contaminated with organic inorganic, and radioactive compounds. he or...
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SITE TECHNOLOGY CAPSULE: GEOTECH DEVELOPMENT CORPORATION COLD TOP EX-SITU VITRIFICATION TECHNOLOGY |
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A SITE technology demonstration was conducted in 1997 to evaluate the potential applicability and effectiveness of the Geotech Cold Top ex-situ vitrification technology on chromium...
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SITE TECHNOLOGY CAPSULE: GRACE DEARBORN INC.'S DARAMEND BIOREMEDIATION TECHNOLOGY |
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Grace Dearborn's DARAMEND Bioremediation Technology was developed to treat soils/sediment contaminated with organic contaminants using solid-phase organic amendments. The amendment...
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SITE TECHNOLOGY CAPSULE: IITRI RADIO FREQUENCY HEATING TECHNOLOGY |
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Radio frequency heating (RFH) technologies use electromagnetic energy in the radio frequency (RF) band to heat soil in situ, thereby potentially enhancing the performance of standa...
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SITE TECHNOLOGY CAPSULE: IITRI RADIO FREQUENCY HEATING TECHNOLOGY |
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Radio frequency heating (RFH) technologies use electromagnetic energy in the radio frequency i(RF) band to heat soil in-situ, thereby potentially enhancing the performances of stan...
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SITE TECHNOLOGY CAPSULE: IN SITU STEAM ENHANCED RECOVERY PROCESS |
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The SERP technology is designed to treat soils contaminated with VOCs and SVOCs in situ. Steam injection and vacuum extraction are used to remove the organic compounds from the soi...
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SITE TECHNOLOGY CAPSULE: J.R. SIMPLOT EX-SITU ANAEROBIC BIOREMEDIATION TECHNOLOGY: TNT |
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The J.R. Simplot Ex-Situ Bioremediation Technology is designed to degrade nitroaromatic compounds anaerobically, with total destruction of toxic intermediates at the completion of ...
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SITE TECHNOLOGY CAPSULE: J.R. SIMPLOT EX-SITU ANAEROBIC BIOREMEDIATION TECHNOLOGY: TNT |
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The J.R. Simplot Ex-Situ Bioremediation Technology is designed to degrade nitroaromatic compounds anaerobically, with total destruction of toxic intermediates at the completion of ...
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SITE TECHNOLOGY CAPSULE: J.R. SIMPLOT EX-SITU BIOREMEDIATION TECHNOLOGY: DINOSEB |
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The J.R. Simplot Ex-Situ Bioremediation Technology is designed to anaerobically degrade nitroaromatic and energetic compounds in soils and liquids without forming identifiable toxi...
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SITE TECHNOLOGY CAPSULE: J.R. SIMPLOT EX-SITU BIOREMEDIATION TECHNOLOGY: DINOSEB |
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The J.R. Simplot Ex-Situ Bioremediation Technology is designed to anaerobically degrade nitroaromatic and energetic compounds in soils and liquids without forming identifiable to...
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SITE TECHNOLOGY CAPSULE: KAI RADIO FREQUENCY HEATING TECHNOLOGY |
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KAI developed a patented, in situ RFH technology to enhance the removal of volatile and semi-volatile organics by soil vapor extraction (SVE). Electromagnetic energy heats the soil...
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SITE TECHNOLOGY CAPSULE: SUBSURFACE VOLATILIZATION AND VENTILATION SYSTEM (SVVS) |
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The Subsurface Volatilization and Ventilation System is an integrated technology used for attacking all phases of volatile organic compound (VOC) contamination in soil and groundwa...
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SITE TECHNOLOGY CAPSULE: TERRA-KLEEN SOLVENT EXTRACTION TECHNOLOGY |
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Remediation of PCBs in soils has been difficult to implement on a full-scale, cost-effective basis. The Terra-Kleen solvent extraction system has overcome many of the soil handling...
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SITE TECHNOLOGY CAPSULE; IN SITU ELECTROKINETIC EXTRACTION SYSTEM |
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As a part of the Superfund Innovative Technology Evaluation (SITE) Program, the U.S. Environmental Protection Agency evaluated the In-Situ Electrokinetic Extraction (ISEE) system a...
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SITE-SPECIFIC CHARACTERIZATION OF SOIL RADON POTENTIALS |
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The report presents a theoretical basis for measuring site-specific radon potentials. However, the empirical measurements suggest that the precision of such measurements is margina...
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SITE-SPECIFIC MEASUREMENTS OF RESIDENTIAL RADON PROTECTION CATEGORY |
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The report describes a series of benchmark measurements of soil radon potential at seven Florida sites and compares the measurements with regional estimates of radon potential from...
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SITE-SPECIFIC PROTOCOL FOR MEASURING SOIL RADON POTENTIALS FOR FLORIDA HOUSES |
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The report describes a protocol for site-specific measurement of radon potentials for Florida houses that is consistent with existing residential radon protection maps. The protoco...
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SLURRY BIODEGRADATION |
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In a slurry biodegradation system, an aqueous slurry is created by combining soil or sludge with water. his slurry is then biodegraded aerobically using a self-contained reactor or...
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SODIUM DITHIONITE INJECTIONS USED FOR CHROMIUM REDUCTION |
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A field-scale pilot study was conducted in 1999 at the U.S. Coast Guard Support Center in Elizabeth City, NC, to evaluate the effectiveness of injecting sodium dithionite into the ...
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SODIUM DITHIONITE INJECTIONS USED FOR CHROMIUM REDUCTION: NEWSLETTER |
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NEWSLETTER NRMRL-ADA- 02116
Paul*, C.J. "Sodium Dithionite Injections Used for Chromium Reduction." In: Groundwater Currents Newsletter 20...
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SOIL ALUMINUM DISTRIBUTION IN THE NEAR-STREAM ZONE AT THE BEAR BROOK WATERSHED IN MAINE |
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Near-stream and upslope soil chemical properties were analyzed to infer linkages between soil and surface water chemistry at the Bear Brook Watershed in Maine [BBWM]. Organic and m...
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SOIL AND HYDROLOGY OF A WET-SANDY CATENA IN EAST-CENTRAL MINNESOTA |
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Sail properties are strongly related to the retention and movement of water within the soil system. The purposes of this study were to document the near-surface hydrology of a wetl...
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SOIL CADMIUM AS A THREAT TO HUMAN HEALTH |
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Cd contamination of soils has been a public concern since the demonstration that soil Cd from Zn mine wastes which contaminated rice paddies had caused excessive Cd absorption and ...
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SOIL DEVELOPMENT AND NITRATES IN MINESOIL |
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Samples of minesoils from 16- and 40-year-old mine spoil piles were analyzed in the laboratory for various chemical and physical properties to ascertain to what extent the material...
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SOIL EMISSIONS OF CO2 AND CO IN TROPICAL SAVANNAS OF CENTRAL BRAZIL UNDER DIFFERENT FIRE REGIMES |
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The Cerrado is a tropical savanna in which herbaceous vegetation (mainly C4 grasses) coexists with trees and shrubs. It covers more than two million square kilometers and accounts...
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SOIL GENESIS, HYDROLOGICAL PROPERTIES, ROOT CHARACTERISTICS AND MICROBIAL ACTIVITY OF 1- TO 50-YEAR OLD STRIPMINE SPOILS |
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Reclamation of coal strip-mined land is a major environmental concern. The future of reclaimed land depends on the long-term stability of the soil-vegetation system on mined land. ...
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SOIL MAPPING CONCEPTS FOR ENVIRONMENTAL ASSESSMENT |
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Spatial variability of soils in the landscape and how this variability is represented by soil maps and portrayed in map unit descriptions are critical for assessing many of today's...
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SOIL N AND C GEOGRAPHY OF THE SALMON RIVER WATERSHED AND THE OREGON COAST |
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To help establish restorative criteria of salmon runs in the Pacific Northwest, resource inventories on affected watersheds are a critical component of this process. Diverse soil ...
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SOIL NITROGEN TRANSFORMATIONS AND ROLE OF LIGHT FRACTION ORGANIC MATTER IN FOREST SOILS |
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Depletion of soil organic matter through cultivation may alter substrate availability for microbes, altering the dynamic balance between nitrogen (N) immobilization and mineralizat...
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SOIL ORGANIC MATTER STABILIZATION IN A TRANSECT OF FOREST TYPES ON SOILS WITH DIVERSE MINERALOGY AND ENVIRONMENTAL CONDITIONS IN THE PACIFIC NORTHWEST USA |
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abstract for presentation...
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SOIL PHYSICOCHEMICAL PARAMETERS AFFECTING METAL AVAILABILITY IN SLUDGE-AMENDED SOILS |
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A series of laboratory studies was conducted to determine the effects of soil pH and redox potential onlevels of trace metals (Cu, Zn, Cd, Pb, Cr, Ni, and As) in selected chemical ...
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SOIL RADON POTENTIAL MAPPING OF TWELVE COUNTIES IN NORTH CENTRAL FLORIDA |
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The report describes the approach, methods, and detailed data used to prepare soil radon potential maps of 12 counties in North-Central Florida. he maps were developed under the Fl...
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SOIL RADON POTENTIAL MAPPLING OF TWELVE COUNTIES IN NORTH-CENTRAL FLORIDA |
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The report describes the approach, methods, and detailed data used to prepare soil radon potential maps of 12 counties in North-Central Florida. he maps were developed under the Fl...
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SOIL REACTION AND ACIDIC DEPOSITION |
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This chapter discusses the major chemical processes by which acidic deposition interacts with soils. he focus is on forest soils, as the effects of acidic deposition on soils used ...
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SOIL RESCUE REMEDIATION SOLUTION, STAR ORGANICS, L.L.C. |
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The Star organics Soil Rescue process was evaluated under the USEPA's SITE program for the ability of the process to reduce leachable lead in contaminated soils. The Soil Rescue s...
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SOIL RESCUE REMEDIATION SOLUTION, STAR ORGANICS, L.L.C.(EPA/540/MR-99/501) |
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The Star organics Soil Rescue process was evaluated under the USEPA's SITE program for the ability of the process to reduce leachable lead in contaminated soils. The Soil Rescue so...
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SOIL RESPIRATION RESPONSE TO THREE YEARS OF ELEVATED CO-2 AND N FERTILIZATION IN PONDEROSA PINE (PINUS PONDEROSA DOUG. EX LAWS.) |
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We measured growing season soil CO-2 evolution under elevated atmospheric (CO-2) and soil nitrogen (N) additions. Our objectives were to determine treatment effects, quantify seaso...
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SOIL RESPONSE TO S AND N TREATMENTS IN A NORTHERN NEW ENGLAND LOW ELEVATION CONIFEROUS FOREST |
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A field experiment was designed to evaluate the effects of differing forms of acidifying S and N compounds on the chemistry of soils and soil solutions in a low elevation coniferou...
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SOIL SAMPLING FOR CHARACTERIZING HAZARDOUS WASTE |
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The sampling of soil, or any heterogeneous media, requires an understanding of the spatial and temporal scales of interest to the decision makers. Depending on how the media is sa...
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SOIL SORPTION OF VOLATILE AND SEMIVOLATILE ORGANIC COMPOUNDS IN A MIXTURE |
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Studies were conducted to evaluate lipophilicity as a predictor of sorption for a mixture of organic compounds with high vapor pressures commonly present at hazardous waste sites. ...
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SOIL VAPOR EXTRACTION COLUMN EXPERIMENTS ON GASOLINE CONTAMINATED SOIL |
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Soil vapor extraction (SVE) is a technique that is used to remove volatile organic compounds from unsaturated soils. Air is pumped through and from the contaminated zone to remove ...
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SOIL VAPOR EXTRACTION COLUMN EXPERIMENTS ON GASOLINE CONTAMINATED SOIL |
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Soil vapor extraction (SVE) is a technique that is used to remove volatile organic compounds from unsaturated soils. ir is pumped through and from the contaminated zone to remove v...
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SOIL WASHING TREATABILITY FOR PESTICIDE-CONTAMINATED SOIL |
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The 1987 Record of Decision for Sand Creek Operable Unit 5 identified soil washing as the selected technology to remediate soils contaminated with high levels of organochlorine pes...
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SOIL WASHING TREATMENT |
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Soil washing is a water-based process for mechanically scrubbing soils ex-situ to remove undesirable contaminants. he process removes contaminants from soils in one of two ways: by...
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SOIL-AIR PERMEABILITY METHOD EVALUATION |
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The feasibility of soil vapor extraction (SVE) is, in part, based on vadose zone soil-air permeability. ield, laboratory and empirical correlation methods for estimating soil-air p...
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SOIL-ATMOSPHERE EXCHANGE OF METHANE IN ADJACENT CULTIVATED AND FLOODPLAIN FOREST SOILS |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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SOIL-MEDIATED EFFECTS OF ATMOSPHERIC DEPOSITION ON EASTERN US SPRUCE-FIR FORESTS |
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The coincident observation of Waldsterben in Germany and red spruce decline in the northeastern U. S. has naturally led to some speculation that similar mechanisms may be involved....
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SOIL-MEDIATED EFFECTS OF ATMOSPHERICALLY DEPOSITED SULFUR AND NITROGEN |
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The soil mediates both terrestrial and aquatic effects of sulphur and nitrogen deposition in a number of ways. Atmospherically deposited S in excess of biological requirements ofte...
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SOLID OXYGEN SOURCE FOR BIOREMEDIATION IN SUBSURFACE SOILS |
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Sodium percarbonate was encapsulated in poly(vinylidene chloride) to determine its potential as a slow-release oxygen source for biodegradation of contaminan ts in subsurface soils...
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SOLID OXYGEN SOURCE FOR BIOREMEDIATION IN SUBSURFACE SOILS |
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Sodium percarbonate was encapsulated in poly(vinylidene chloride) to determine its potential as a slow-release oxygen source for biodegradation of contaminants in subsurface soils....
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SOLID PHASE FORMATION AND SOLUTION CHEMISTRY OF NICKEL IN SOILS: 1. THEORETICAL |
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Nickel (Ni) may be an environmental pollutant. It is phytotoxic as well as zootoxic, especially to marine life. It results in carcinogenesis and many other metabolic complications....
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SOLID PHASE FORMATION AND SOLUTION CHEMISTRY OF NICKEL IN SOILS: 2. EXPERIMENTAL |
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Based on the thermodynamic stability models of Ni minerals, NiFe2O4 (nickel ferrite) and Ni3(PO4)2 seem the most probable solid phases that could form in soils during Ni sorption. ...
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SOLID-PHASE TREATMENT OF A PENTACHLOROPHENOL-CONTAMINATED SOIL USING LIGNIN-DEGRADING FUNGI |
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The abilities of three lignin-degrading fungi, Phanerochaete chrysosporium, P. sordida, and Trametes hirsuta to deplete pentachlorophenol (PCP) from soil contaminated with PCP and ...
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SOLIDIFICATION/STABILIZATION CASE STUDIES AT USEPA SUPERFUND SITES |
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Oral presentation dicumenting several completed Superfund remediations using solidification/stabilization, both in situ and ex-situ, to treat soils containing metals and organics.<...
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SOLIDIFICATION/STABILIZATION FOR REMEDIATON OF WOOD PRESERVING SITES: TREATMENT FOR DIOXINS, PCP, CREOSOTE, AND METALS |
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This article discusses the use of solidification/stabilization (S/S) to treat soils contaminated with organic and inorganic chemicals at wood preserving sites. Solidification is de...
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SOLIDIFICATION/STABILIZATION: A LOW COST TREATMENT FOR WOOD PRESERVING SITES |
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Over 600 curent and former wood preserving sites have been identified across the U.S. Many of these have been placed on the EPA Superfund NPL (National Priorities List). Most of t...
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SOLUBLE ALUMINUM IN ACIDIFIED ORGANIC HORIZONS OF FOREST SOILS |
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Concentrations of labile and total Al in soil extracts were measured as a function of equilibrium solution pH in six forest soil organic horizons acidified with HNO, (0-20 cmol H+....
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SOLVENT EXTRACTION AND SOIL WASHING TREATMENT OF CONTAMINATED SOILS FROM WOOD PRESERVING SITES: BENCH SCALE STUDIES |
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Bench-scale solvent extraction and soil washing studies were performed on soil samples obtained from three abandoned wood preserving sites that included in the NPL. The soil sample...
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SOLVENT EXTRACTION OF PENTACHLOROPHENOL FROM CONTAMINATED SOILS USING WATER-ETHANOL MIXTURES |
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Pentachlorophenol (PCP) is a wood preserving agent that is commonly found in contaminated soils at wood treatment sties. The extraction of PCP from contaminated soils was evaluated...
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SOLVENT EXTRACTION PROCESSES: A SURVEY OF SYSTEMS IN THE SITE PROGRAM |
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Solvent extraction of contaminated soils, sludges, and sediments has been successfully completed at a number of `Superfund sites. ach commercialized process uses a unique operating...
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SOLVENT EXTRACTION TREATMENT |
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Solvent extraction does not destroy wastes, but is a means of separating hazardous contaminants from soils, sludges, and sediments, thereby reducing the volume of the hazardous was...
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SOLVENT WASHING OF AGED PCP CONTAMINATED SOILS |
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This study evaluates the removal of pentachlorophenol (PCP), a wood preserving agent, from soils that have been contaminated over a period of time. reviously, equal proportions of ...
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SOLVENT WASHING OF PCP CONTAMINATED SOILS WITH ANAEROBIC TREATMENT OF WASH FLUIDS |
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A solvent washing procedure for the removal of pentachlorophenol (PCP) from contaminated soils is presented. his procedure can be used in both in-situ and above ground soil washing...
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SOLVOPHOBIC APPROACH FOR PREDICTING SORPTION OF HYDROPHOBIC ORGANIC CHEMICALS ON SYNTHETIC SORBENTS AND SOILS |
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The application of a solvophobic approach for predicting the sorption of hydrophobic organic compounds (HOC) was evaluated with data collected using synthetic sorbents and soils. T...
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SOME EFFECTS OF CADMIUM ON CONIFEROUS FOREST SOIL AND LITTER MICROCOSMS |
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Description and criticism is given of a preliminary design and use of a soil/litter microcosm in which oxygen, temperature, and humidity are kept constant, and oxygen generation an...
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SORPTION AND DEGRADATION OF PENTACHLOROPHENOL IN SLUDGE-AMENDED SOILS |
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Sorption and degradation of pentachlorophenol (PCP) by two alkaline and one acid soil was studied in the presence and absence of sewage sludge. he PCP concentrations used (0.1-10 m...
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SORPTION AND DESORPTION OF CADMIUM BY DIFFERENT FRACTIONS OF BIOSOLIDS - AMENDED SOILS |
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Series of Cd sorption and desorption experiments were conducted on different fractions of soils amended with biosolids, Cd-salt, and unamended soils (control) to test the hypothesi...
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SORPTION AND TRANSPORT OF HYDROPHOBIC ORGANIC CHEMICALS IN AQUEOUS AND MIXED SOLVENT SYSTEMS: MODEL DEVELOPMENT AND PRELIMINARY EVALUATION |
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A theoretical approach, based upon the assumption of predominance of solvophobic interactions, was formulated to quantitatively describe the sorption and transport of hydrophobic o...
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SORPTION OF 2, 3, 7, 8-TETRACHLORODIBENZO-P-DIOXIN TO SOILS FROM WATER/METHANOL MIXTURES |
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Sorption of 14 C-labeled 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCCD) to Soils from water/methanol mixtures has been evaluated by batch shake testing. ncontaminated soils from Times ...
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SORPTION OF 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN FROM WATER BY SURFACE SOILS |
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The sorption of 14C-labelcd 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) from water by two uncontaminated surface soils from the Times Beach, MO, area was evaluated by using batch sh...
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SORPTION OF ARSENATE AND ARSENITE ON RUO2·XH2O: ANALYSIS OF SORBED PHASE OXIDATION STATE BY XANES |
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Arsenic contamination in water, soil and sediment is a global problem. Awareness of the problems created by As contamination have increased in recent years due to reports from Asia...
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SORPTION OF CADMIUM ONTO DIFFERENT FRACTIONS OF BIOSOLIDS AND CADMIUM SALT AMENDED SOILS |
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Biosolids and Cd salt-amended soils were collected from a long-term field experiment established in 1976. Cadmium sorption experiments were conducted on different fractions of soil...
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SORPTION OF CARBON TETRACHLORIDE, ETHYLENE DIBROMIDE AND TRICHLOROETHYLENE ON SOIL AND CLAY |
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The sorption of carbon tetrachloride, ethylene dibromide, and trichloroethylene in two silty clay loam soils and aluminium Al(+3) or calcium Ca(+2) saturated montmorillonite clay w...
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SORPTION OF CD, NI AND ZN BY KAOLINITE AND MONTMORILLONITE SUSPENSIONS (JOURNAL VERSION) |
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Sorption is the predominant process governing metal ion movement in soils and includes the following physical and chemical mechanisms: adsorption, precipitation and absorption. The...
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SORPTION OF IONIZABLE ORGANIC COMPOUNDS TO SEDIMENTS AND SOILS |
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The sorption of ionizable organic compounds to sediments and saturated soils is examined. he sorption of pentachlorophenol to two sediment silt-clay fractions as a function of pH i...
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SORPTION OF ORGANIC ACID COMPOUNDS TO SEDIMENTS: INITIAL MODEL DEVELOPMENT |
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The adsorption to sediments and soils of selected organic acid compounds was examined as a function of compound and sediment properties. ntrinsic compound properties examined inclu...
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SORPTION PROPERTIES OF SEDIMENTS AND ENERGY-RELATED POLLUTANTS |
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This report describes the factors that determine the extent of sorption of organic compounds that are representative of coal conversion waste streams. The compounds, all radiolabel...
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SORPTION, DEGRADATION, AND MINERALIZATION OF CARBARYL IN SOILS, FOR SINGLE-PESTICIDE AND MULTIPLE-PESTICIDE SYSTEMS |
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Sorption, degradation, and mineralization of carbaryl (1-naphthyl N-methylcarbamate) alone and in mixtures with atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) and...
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SOURCE-SINK BALANCE AND CARBON ALLOCATION BELOW GROUND IN PLANTS EXPOSED TO OZONE |
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The role of tropospheric ozone in altering plant growth and development has been the subject of thousands of publications over the last several decades. Still, there is limited un...
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SOURCE-SINK BALANCE AND CARBON ALLOCATION BELOW GROUND IN PLANTS EXPOSED TO OZONE |
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The role of tropospheric ozone in altering plant growth and development has been the subject of thousands of publications and dozens of reviews over the last several decades. Ther...
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SOURCES OF ERROR IN ANALYSIS OF MUNICIPAL SLUDGES AND SLUDGE-AMENDED SOILS FOR DI(2-ETHYLHEXYL) PHTHALATE |
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Rapid quantitative determination of di-(2ethylhexyl) phthalate (DEHP) in municipal sludge is described for capillary gas chromatography/mass spectrometry (GC/MS) using selected ion...
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SOURCES OF VARIABILITY IN PLANT TOXICITY TESTING |
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Published literature is investigated regarding the response of plants to various substances to determine the sensitivity of agricultural plants versus other species, the similarity...
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SPATIAL ANALYSIS OF METHANE EMISSIONS FROM PADDY SOILS IN CHINA AND THE POTENTIAL FOR EMISSIONS REDUCTION |
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NO ABSTRACT PROVIDED...
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SPATIAL AND TEMPORAL TRENDS IN THE CHEMISTRY OF ATMOSPHERIC DEPOSITION IN NEW ENGLAND |
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The authors have evaluated atmospheric deposition related geochemical changes in New England and Quebec by means of (1) transect studies of soil chemistry parallel to pH and metal ...
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SPATIAL FOREST SOIL PROPERTIES FOR ECOLOGICAL MODELING IN THE WESTERN OREGON CASCADES |
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The ultimate objective of this work is to provide a spatially distributed database of soil properties to serve as inputs to model ecological processes in western forests at the lan...
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SPATIAL PATTERNS OF SOIL ORGANIC CARBON IN THE CONTIGUOUS UNITED STATES |
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Spatial patterns and total amounts of soil organic C (SOC) are important data for studies of soil productivity, soil hydraulic properties, and the cycling of C-based greenhouse gas...
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SPECIES COMPOSITION OF FISH COMMUNITIES IN NORTHERN WISCONSIN LAKES: RELATION TO PH |
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Recent investigations of surface water and precipitation chemistry have aroused considerable concern about the potential effects of acidic precipitation on aquatic ecosystems in th...
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SPECTROSCOPIC ANALYSIS OF METALS IN BIOSOLIDS |
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The results of decades of research illustrate that metals in biosolids-amended soils are retained at a higher rate than soils without biosolids-amendments indicating that either an...
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SPECTROSCOPIC APPROACHES TO DEFINING THE INORGANIC AND ORGANIC CONSTITUENTS OF BIOSOLIDS |
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The long-term debate over the fate of metals in biosolids and biosolids-amended soils has traditionally relied on intellectual theory and empirical data. The results of decades of...
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SPECTROSCOPIC SPECIATION AND QUANTIFICATION OF LEAD IN PHOSPHATE AMENDED SOILS |
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The immobilization of Pb in contaminated soils as pyromorphite [Pb5(PO4)3CI, OH, F] through the addition of various phosphate amendments has gained...
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SPECTROSCOPIC SPECIATION AND QUANTIFICATION ON ALTERATIONS OF PB IN PHOSPHATE AMENDED SOILS |
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Lead-bearing soils are a source of lead (Pb) contamination at a number of sites across the nation and pose a risk for our most sensitive population, children. The In-place Inactiv...
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SPILL ALERT DEVICE FOR EARTH DAM FAILURE WARNING |
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A spill alert device for determining earth dam safety based on the monitoring of the acoustic emissions generated in a deforming soil mass was developed and field-tested. The acous...
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SPODOSOL CATION RELEASE AND BUFFERING OF ACIDIC INPUTS |
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The release and leaching of base cations and aluminum by acid additions to O and B soil horizons was examined using both batch and column experimental methods. olution and soil con...
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SPODOSOL VARIABILITY AND ASSESSMENT OF RESPONSE TO ACIDIC DEPOSITION |
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Variability in forest soils makes it difficult to observe short-term changes in chemical properties under field conditions. uried soil-bag technique was developed to examine the ch...
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STABILITY AND MOBILITY OF MUTAGENIC ACTIVITY FROM WASTEWATER AND SLUDGE IN AGRICULTURAL SOILS |
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The objective of the research was to measure the fate and mobility of organic mutagens in municipal sludge amended soil. The results indicate that municipal sludges may contain a p...
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STABILITY OF LINED SLOPES AT LANDFILLS AND SURFACE IMPOUNDMENTS |
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This report describes the results of slope stability analyses, laboratory tests to measure the frictional properties of various interfaces that may be used in landfills and surface...
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STABILIZATION/SOLIDIFICATION OF HAZARDOUS WASTE |
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In response to the growing interest in stabilization and solidification of hazardous wastes and contaminated soils and sediments, the Land Pollution Control Division of EPA's Hazar...
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STABLE CARBON ISOTOPE RATIO AND COMPOSITION OF MICROBIAL FATTY ACIDS IN TROPICAL SOILS |
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The soil microbial community plays a critical part in tropical ecosystem functioning through its role in the soil organic matter (SOM) cycle. This study evaluates the relative eff...
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STABLE ISOTOPES AS INDICATORS OF SOIL WATER DYNAMICS IN WATERSHEDS |
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Stream water quality and quantity depend on discharge rates of water and nutrients from soils. However, soil-water storage is very dynamic and strongly influenced by plants. We a...
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STABLE ISOTOPES IN ECOLOGICAL STUDIES: EXPANDING THE SCOPE OF MIXING MODELS |
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Stable isotopes are increasingly being used as tracers in ecological studies. One common application uses isotopic ratios to quantify the proportional contributions of multiple so...
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STABLE ISOTOPES IN ECOLOGICAL STUDIES: NEW DEVELOPMENTS IN MIXING MODELS |
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Stable isotopes are increasingly being used as tracers in ecological studies. One application uses isotopic ratios to quantify the proportional contributions of multiple sources t...
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STABLE ISOTOPES IN ECOLOGICAL STUDIES: NEW DEVELOPMENTS IN MIXING MODELS (BRAZIL) |
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Stable isotopes are increasingly being used as tracers in ecological studies. One application uses isotopic ratios to quantify the proportional contributions of multiple sources t...
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STABLE ISOTOPES IN ECOLOGICAL STUDIES: NEW DEVELOPMENTS IN MIXING MODELS (URUGUAY) |
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Stable isotopes are increasingly being used as tracers in ecological studies. One application uses isotopic ratios to quantify the proportional contributions of multiple sources t...
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STANDARD OPERATING PROCEDURE FOR THE FIELD ANALYSIS OF LEAD IN PAINT, BULK DUST, AND SOIL BY ULTRASONIC, ACID DIGESTION AND COLORIMETRIC MEASUREMENT |
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A quantitative field method was developed for the analysis of lead (Pb) in paint, bulk dust, and soil. 5% (v/v) HNO3 ultrasonic digestion was followed by colorimetric measurement o...
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STATE OF TECHNOLOGY REVIEW SOIL VAPOR EXTRACTION SYSTEMS |
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Soil vapor extraction is a cost?effective technique for the removal of volatile organic chemicals (VOCs) from contaminated soils. Among the advantages of the soil air extraction pr...
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STATE-OF-THE-ART FOR FIELD PERMEABILITY TESTING PROCEDURES |
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This report documents the available technical information on field hydraulic conductivity test methods for soil liners. he methods discussed are currently used and readily availabl...
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STATEWIDE EMPIRICAL MODELING OF BACTERIAL CONTAMINATION OF SURFACE WATERS |
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Bacterial contamination of surface waters is attributed to both urban and agricultural land use practices,and is one of the most frequently cited reasons for failure to meet standa...
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STATEWIDE MAPPING OF FLORIDA SOIL RADON POTENTIALS - VOLUME 1. TECHNICAL REPORT |
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The report gives results of statewide mapping of Florida soil radon potentials. tatewide maps identify Florida regions with different levels of soil radon potential. he maps provid...
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STATEWIDE MAPPING OF FLORIDA SOIL RADON POTENTIALS - VOLUME 2. APPENDICES A-P |
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The report gives results of statewide mapping of Florida soil radon potentials. tatewide maps identify Florida regions with different levels of soil radon potential. he maps provid...
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STATEWIDE MAPPING OF FLORIDA SOIL RADON POTENTIALS VOLUME 1. TECHNICAL REPORT |
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The report gives results of a statewide mapping of Florida soil radon potentials. Statewide maps identify Florida Regions with different levels of soil radon potential. The maps pr...
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STATEWIDE MAPPING OF FLORIDA SOIL RADON POTENTIALS VOLUME 2. APPENDICES A-P |
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The report gives results of a statewide mapping of Florida soil radon potentials. Statewide maps identify Florida Regions with different levels of soil radon potential. The maps pr...
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STATISTICAL ESTIMATES OF VARIANCE FOR 15N ISOTOPE DILUTION MEASUREMENTS OF GROSS RATES OF NITROGEN CYCLE PROCESSES |
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It has been fifty years since Kirkham and Bartholmew (1954) presented the conceptual framework and derived the mathematical equations that formed the basis of the now commonly empl...
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STATUS OF EPA/DOE MOU TECHNICAL WORKGROUP ACTIVITIES: HG WASTE TREATMENT |
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EPA's Land Disposal Restrictions program currently has technology-specific treatment standards for hazardous wastes containing greater than or equal to 260ppm total mercury (Hg) (i...
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STEAM INJECTION REMEDIATION IN FRACTURED BEDROCK AT LORING AIR FORCE BASE |
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Contaminated groundwater occurs at many Superfund, RCRA, and Brownfields sites. Chlorinated solvents which can form a dense nonaqueous phase (DNAPL) when released to the subsurfac...
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STEMFLOW CONTRIBUTION TO THE 'FERTILE ISLAND' EFFECT IN CREOSOTEBUSH, LARREA TRIDENTATA |
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Stemflow, throughfall and bulk precipitation were collected on six creosotebushes (Larrea tridentata) during 18 events in the summer rainy season in the northern Chihuahuan Desert....
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STORM WATER BEST MANAGEMENT PRACTICES: CAPACITIES, CAPABILITIES, AND SOME LIMITATIONS |
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This presentation will cover the basics of what a storm water best management practices and focus on infiltration-type practices using the example of rain gardens. I will demonstra...
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STRATEGIES IN SOIL PROTECTION - MISSIONS AND VISIONS |
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The focus of this paper is the progress to reach our present understandings of the needs and methods for "Soil protection." Sloil is critical to human life, needed for production ...
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STRATEGIES IN SOIL PROTECTION - MISSIONS AND VISIONS |
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The focus of this paper is the progress to reach our present understandings of the needs and methods for "Soil protection." Soil is critical to human life, needed for production o...
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STREAM BOTTOM CHARACTERISTICS AS A FUNCTION OF HYDROGEOMORPHIC REGION, MATURE FOREST COVER, AND WATERSHED VARIABLES |
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Stream bottom characteristics were compared for 24 second-order watersheds in the western Lake Superior basin to estimate types and quantities of sediment available for export and ...
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STUDIES ON ADSORPTION OF 2-CHLORO BIPHENYL ON SEDIMENTS AND SEDIMENT COMPONENTS |
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Polychlorinated biphenyls, or PCBs, are a family of 209 structurally related chemical compounds (congeners), consisting of two benzene rings and 1 to 10 chlorine atoms. They range ...
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STUDIES ON THE MICROBIAL ECOLOGY OF PAH DEGRADATION |
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Soils with known history of exposure to polycyclic aromatic hydrocarbons (PAHS) were collected from Norway, Germany and the United States and screened for the presence of PAH-degra...
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STUDYING FOREST ROOT SYSTEMS - AN OVERVIEW OF METHODOLOGICAL PROBLEMS |
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The study of tree root systems is central to understanding forest ecosystem carbon and nutrient cycles, nutrient and water uptake, C allocation patterns by trees, soil microbial po...
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SUBSURFACE CHARACTERIZATION OF UPLAND RIPARIAN MEADOWS IN CENTRAL NEVADA USING AN INNOVATIVE DIRECT-PUSH EXPLORATION RIG |
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The U.S. EPA and the USDA Forest Service are conducting a joint investigation to better understand the interactions between geomorphology, hydrology, and vegetation associated with...
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SUBSURFACE SOIL CONDITIONS BENEATH AND NEAR BUILDINGS AND THE POTENTIAL EFFECTS ON SOIL VAPOR INTRUSION |
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Migration of volatile chemicals from the subsurface into overlying buildings is called vapor intrusion. Volatile organic chemicals in contaminated soils or groundwater can emit va...
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SUBTERRANEAN TERMITES: REGULATORS OF SOIL ORGANIC MATTER IN THE CHICHUAHUAN DESERT |
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Soil organic matter and the abundance of subterranean termites were measured at 89 locations spaced at 30-m intervals from the bottom of the top of a small desert watershed. here w...
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SULFATE MOBILITY IN ACID SOILS AND IMPLICATIONS WITH RESPECT TO CATION LEACHING: A REVIEW |
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Relative to a non-sorbing (conservative) solute, sulfate is generally less mobile in soils. Factors that affect sulfate mobility are (1) solution concentration of sulfate, (2) time...
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SULFUR DYNAMICS IN MINERAL HORIZONS OF TWO NORTHERN HARDWOOD SOILS A COLUMN STUDY WITH 35S |
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Sulfur dynamics of two Spodosols were ascertained using soil columns constructed from homogenized mineral soil from northern hardwood ecosystems at the Huntington Forest (HF) in th...
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SULFUR DYNAMICS OF FOREST ECOSYSTEMS |
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There has been considerable advancement in the understanding of the S biogeochemistry of forested ecosystems. any recent studies have focused on ascertaining the impacts of acidic ...
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SULFUR RETENTION AND CATION LEACHING OF FOREST SOILS IN RESPONSE TO ACID ADDITIONS |
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Leachate SO42- concentrations were greater for the high-S than for the low-S treatment for each soil type, resulting in greater cat ion leachate concentrations for soils that recei...
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SUMMARY OF THE PHYTOREMEDIATION STATE OF THE SCIENCE CONFERENCE |
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The term phytoremediation was introduced in 1991 and is understood to mean that plants can be used to address a variety of contaminants, such as organic chemicals, inorganics and h...
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SUMMARY OF WORKSHOP ON BIODEGRADATION OF MTBE FEBRUARY 1-3, 2000 |
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A workshop on biodegradation of methyl tert butyl ether (MTBE) contaminated soils and groundwater was held in Cincinnati, Ohio, February 1-2, 2000, and was sponsored by the USEPA's...
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SUMMARY OF WORKSHOP ON MTBE FEBRUARY 1-2, 2000: EPA PROCEEDING |
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NRMRL-CIN-1359 Eastern Research Group. Summary of Workshop on MTBE February 1-2, 2000. EPA/625/R-01/001 (NTIS PB2002- 102850) , http://w...
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SUMMARY PAPER: IN SITU BIOREMEDIATION OF CONTAMINATED VADOSE ZONE SOIL |
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The Robert S. Kerr Environmental Research Laboratory (RSKERL) has developed a number of Issue Papers and Briefing Documents which are designed to exchange up-to-date information re...
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SUPERCRITICAL EXTRACTION/LIQUID PHASE OXIDATION OF WASTES |
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This final report presents the work performed by the Institute of Gas Technology (IGT) during the period from September 29, 1994 through May 31, 1998 under a Cooperative Agreement ...
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SUPERFUND ENGINEERING ISSUE: CONSIDERATIONS FOR EVALUATING THE IMPACT OF METALS PARTITIONING DURING THE INCINERATION OF CONTAMINATED SOILS FROM SUPERFUND SITES |
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A significant amount of research has been conducted on the incineration of contaminated materials. lthough historically the primary focus has been on the destruction of organics, i...
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SUPERFUND ENGINEERING ISSUE: TREATMENT OF LEAD-CONTAMINATED SOILS |
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This document summarizes the contents of a seminar on treatment of lead-contaminated soils presented on August 28, 1990, to Region V Superfund and RCRA personnel by members of EPA'...
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SUPERFUND INNOVATIVE TECHNOLOGY EVALUATION PROGRAM Evaluation of Soil Amendment Technologies at the Crooksville/RosevillePottery Area of Concern Rocky Mountain Remediation ServicesEnvirobond™ Process |
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RMRS developed the Envirobond™ process to treat heavy metals in soil.This phosphate-based technology consists of a proprietary powder and solution that binds with metals in contam...
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SUPERFUND SOILS DATA MANAGEMENT SYSTEM |
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This paper describes the Superfund Soil Data Management System (DMS), a PC-based data system being developed by the U.S. Environmental Protection Agency (EPA) in its effort to mana...
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SUPERFUND TREATABILITY CLEARINGHOUSE: ABSTRACT ON-SITE INCINERATION TESTING OF SHIRCO INFRARED SYSTEMS PORTABLE DEMONSTRATION UNIT-CONTAMINATED SOILS TREATABILITY STUDY |
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In August of 1986, Shirco was contracted by Dekonta GmbH, a Vest German hazardous waste treatment company, to perform treatability studies at one of the largest dioxin-contaminated...
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SUPERFUND TREATABILITY CLEARINGHOUSE: ADVANCED ELECTRIC REACTOR (AER) FOR THE TREATMENT OF DIOXIN- CONTAMINATED SOILS |
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This newsletter reports on the Huber Technology Groups (HTG) high temperature advanced hazardous waste treatment technology capable of very high destruction and removal efficienci...
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SUPERFUND TREATABILITY CLEARINGHOUSE: BDAT FOR SOLIDIFICATION/STABILIZATION TECHNOLOGY FOR SUPERFUND SOILS (DRAFT FINAL REPORT) |
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This report evaluates the performance of solidification as a method for treating solids from Superfund sites. Tests were conducted on four different artificially contaminated s...
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SUPERFUND TREATABILITY CLEARINGHOUSE: BDAT TREATABILITY DATA FOR SOILS, SLUDGES AND DEBRIS FROM THE CIRCULATING BED COMBUSTION (CBC) PROCESS |
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The two papers provide a general overview of the Ogden circulating bed combustion and summary data of both PCB laden soils for EPA-TSCA and a test on RCRA liquid organic wastes f...
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SUPERFUND TREATABILITY CLEARINGHOUSE: BENGART AND MEMEL (BENCH-SCALE), GULFPORT (BENCH AND PILOT-SCALE), MONTANA POLE (BENCH-SCALE), AND WESTERN PROCESSING (BENCH-SCALE) TREATABILITY STUDIES |
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This document presents summary data on the results of various
treatability studies (bench and pilot scale), conducted at three different
sites where soils were contaminated with ...
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SUPERFUND TREATABILITY CLEARINGHOUSE: CERCLA BDAT SARM PREPARATION AND RESULTS OF PHYSICAL SOILS WASHING EXPERIMENTS (FINAL REPORT) |
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This study reports on the results of work preparing 30,000 Ibs of SARM or synthetic analytical reference matrix, a surrogate Superfund soil containing a vide range of contaminants...
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SUPERFUND TREATABILITY CLEARINGHOUSE: COMPOSITING EXPLOSIVES/ORGANICS CONTAMINATED SOILS |
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Laboratory scale and pilot scale studies were conducted to evaluate composting to treat sediments and soils containing explosive and
organic compounds. Sediment and soil from...
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SUPERFUND TREATABILITY CLEARINGHOUSE: DEVELOPMENT OF TREATMENT DATA ON THE KPEG PROCESS FOR CERCLA/BDAT STANDARDS |
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This report describes the results of laboratory studies on KPEG treatment of synthetic soils contaminated with a variety of compounds,
both organic and inorganic. The U.S. EPA ...
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SUPERFUND TREATABILITY CLEARINGHOUSE: EVALUATION OF AN ENGINEERED BIODEGRADATION SYSTEM AT THE NASHUA, N.H. SITE |
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The treatability study report presents the results of both laboratory and field studies conducted by Koppers on soils from the Nashua,
N.H., NPL site. The purpose of these ...
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SUPERFUND TREATABILITY CLEARINGHOUSE: FINAL REPORT DEMONSTRATION TEST ON-SITE PCB DESTRUCTION, SHIRCO INFRARED PORTABLE UNIT AT FLORIDA STEEL INDIANTOWN MILL SITE, INDIANTOWN, FLORIDA. |
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This document reports on the results of a Florida Steel Corporation study to develop and evaluate cleanup alternatives for onsite
treatment of PCB contaminated soils. The resul...
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SUPERFUND TREATABILITY CLEARINGHOUSE: FINAL REPORT, ONSITE INCINERATION TESTING AT BRIO SITE, FRIENDSWOOD, TX |
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Shirco Infrared Systems, operated a pilot-scale infrared unit on-site at the Brio Refinery Site in Texas. Eight tests were run over a four day period with various soil compositi...
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SUPERFUND TREATABILITY CLEARINGHOUSE: FINAL REPORT: DEVELOPMENT OF OPTIMUM TREATMENT SYSTEM FOR WASTEWATER LAGOONS PHASE II - SOLVENT EXTRACTION LABORATORY TESTING |
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The U.S. Army surveyed innovative treatment techniques for restoration of hazardous waste lagoons and selected solvent extraction as cost-effective restoration for further study. ...
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SUPERFUND TREATABILITY CLEARINGHOUSE: HARBAUER SOIL CLEANING SYSTEM |
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This document reports on the use of a soil cleaning system to remove contaminants from various types of soils by washing and concurrently
vibrating the soils to force the cont...
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SUPERFUND TREATABILITY CLEARINGHOUSE: INCINERATION TEST OF EXPLOSIVES CONTAMINATED SOILS AT SAVANNA ARMY DEPOT ACTIVITY, SAVANNA, ILLINOIS |
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The primary objective of these tests was to demonstrate the
effectiveness of incineration as a decontamination method for explosives contaminated sails. A pilot-scale rot...
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SUPERFUND TREATABILITY CLEARINGHOUSE: LABORATORY FEASIBILITY TESTING OF PROTOTYPE SOIL WASHING CONCEPTS |
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This draft document reports on laboratory testing of several washing solutions to decontaminate soils contaminated vith dioxins. The following extractants were evaluated; surfact...
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SUPERFUND TREATABILITY CLEARINGHOUSE: LOW TEMPERATURE TREATMENT OF CERCLA SOILS AND DEBRIS USING THE IT LABORATORY SCALE THERMAL DESORPTION FURNACES |
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This study report on laboratory experiments on low temperature
treatment of soils using thermal desorption. The purpose of the study was to determine if thermal desorption cou...
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SUPERFUND TREATABILITY CLEARINGHOUSE: ON-SITE REMEDIATION OF GASOLINE-CONTAMINATED SOIL |
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This treatability study reports on the results of tests aimed at treating gasoline contaminated soils at seven different sites using hydrogen peroxide to oxidize gasoline constitu...
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SUPERFUND TREATABILITY CLEARINGHOUSE: PCB DESTRUCTION FACILITY CIRCULATING BED COMBUSTOR |
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This treatability study reports on an evaluation of a pilot-scale, transportable, circulating bed combustor (CBC) for the incineration of PCB contaminated soils. This May 1985 tes...
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SUPERFUND TREATABILITY CLEARINGHOUSE: PILOT INVESTIGATION OF LOW-TEMPERATURE STRIPPING OF VOLATILE ORGANIC COMPOUNDS (VOCS) FROM SOIL: VOLUME 1 - TECHNICAL REPORT AND VOLUME II APPENDICES |
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The U.S. Army Toxic and Hazardous Materials Agency (USATHAMA)
is investigating technologies to treat soils contaminated with solvents. A
pilot study of low temperature thermal ...
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SUPERFUND TREATABILITY CLEARINGHOUSE: PILOT STUDY OF ENCLOSED THERMAL SOIL AERATION FOR REMOVAL OF VOLATILE ORGANIC CONTAMINATION AT THE MCKIN SUPERFUND SITE |
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This paper reports on the results of a pilot study that treated vadose zone soil contaminated with VOCs in an enclosed thermal aeration system. The McKin site, an NPL site in Grey...
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SUPERFUND TREATABILITY CLEARINGHOUSE: SOIL STABILIZATION PILOT STUDY, UNITED CHROME NPL SITE PILOT STUDY AND HEALTH AND SAFETY PROGRAM, UNITED CHROME NPL SITE PILOT STUDY |
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This document is a project plan for a pilot study at the
United Chrome NPL site, Corvallis, Oregon and includes the health and
safety and quality assurance/quality control plan...
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SUPERFUND TREATABILITY CLEARINGHOUSE: SUMMARY REPORT ON THE FIELD INVESTIGATION OF THE SAPP BATTERY SITE JACKSON COUNTY, FLORIDA |
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This treatability study presents the results of field investigations at the Sapp Battery site in Florida, an abandoned battery recycling operation. The site is estimated to contai...
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SUPERFUND TREATABILITY CLEARINGHOUSE: TECHNOLOGY DEMONSTRATION OF A THERMAL DESORPTION/UV PHOTOLYSIS PROCESS FOR DECONTAMINATING SOILS CONTAINING HERBICIDE ORANGE |
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This treatability study report presents the results of laboratory and field tests on the effectiveness of a new decontamination process for soils containing 2,4-D/2,4,5-T and t...
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SUPPLEMENT TO: STANDARD MEASUREMENT PROTOCOLS - FLORIDA RADON RESEARCH PROGRAM |
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The report supplements earlier published standard protocols for key measurements where data quality is vital to the Florida Radon Research Program. The report adds measurements of ...
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SURFACTANT EFFECTS ON PESTICIDE PHOTOCHEMISTRY IN WATER AND SOIL |
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The effects of surfactants on the photochemical decomposition of selected pesticides are examined both in aqueous solution and on selected soil surfaces. Typical surfactants usuall...
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SURFACTANT SELECTION FOR ENHANCING EX SITU SOIL WASHING. (R825511C064) |
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Ex situ soil washing is commonly used for treating contaminated soils by separating the most contaminated fraction of the soil for disposal. Surfactant-enhanced soil wash...
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SURFACTANT/CO-SOLVENT FLUSHING TECHNOLOGIES: PERFORMANCE ASSESSMENT |
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The use of surfactant and co-solvent solutions to remove non-aqueous phase liquids (NAPLs) from soils has seen significant research and development activity over the last decade. T...
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SURFACTANT/CO-SOLVENT FLUSHING TECHNOLOGIES: PERFORMANCE ASSESSMENT |
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The use of surfactant and co-solvent solutions to remove non-aqueous phase liquids (NAPLs) from soils has seen significant research and development activity over the last decade. T...
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SURVIVAL AND DEGRADATIVE CAPACITY OF PSEUDOMONAS PUTIDA INDUCED OR CONSTITUTIVELY EXPRESSING PLASMA-MEDIATED DEGRADATION OF 2,4-DICHLOROPHENOXYACETATE (TFD) IN SOIL |
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The survival of genetically altered Pseudomonas putida strains harboring an inducible plasmid, PRO101, or a constitutive plasmid, PRO103, was compared. hese plasmids encode for the...
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SURVIVAL AND DEGRADATIVE CAPACITY OF PSEUDOMONAS PUTIDA INDUCED OR CONSTITUTIVELY EXPRESSING PLASMID-MEDIATED DEGRADATION OF 2,4-DICHLOROPHENOXYACETATE (TFD) IN SOIL |
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Survival of genetically altered Pseudonomas putida strains harboring an inducible plasmid, pRO101, or a constitutive plasmid, pRO103, was compared. hese plasmids encoded for the de...
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SURVIVAL AND TRANSPORT OF HEPATITIS A VIRUS IN SOILS, GROUNDWATER AND WASTEWATER (JOURNAL VERSION) |
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Hepatitis A virus (HAV), poliovirus type 1 and echovirus type 1 were studied for their adsorption and survival in groundwater, wastewater and soils suspended in these media and for...
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SURVIVAL AND TRANSPORT OF PATHOGENS IN SLUDGE-AMENDED SOIL: A CRITICAL LITERATURE REVIEW |
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A study was undertaken to critically review available information on the survival and transport of pathogens from municipal wastewater sludges applied to land. Most available data ...
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SYMPOSIUM ON ENVIRONMENTAL TRANSPORT AND TRANSFORMATION OF PESTICIDES: JOINT U.S.-U.S.S.R. PROJECT 02.03-31, 'FORMS AND MECHANISMS BY WHICH PESTICIDES AND CHEMICALS ARE TRANSPORTED' |
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Under the USA-USSR Agreement on Cooperation in the Field of Environmental Protection, a joint project committee on environmental transport of agricultural chemicals (pesticides and...
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SYNCHROTRON RADIATION STUDIES IN ENVIRONMENTAL SCIENCE |
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This seminar presentation will provide background information on synchrotron radiation studies in environmental sciences and its application to projects within the US EPA....
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SYNCHTROTRON RADIATION STUDIES IN ENVIRONMENTAL SCIENCE |
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This seminar presentation will provide background information on synchrotron radiation studies in environmental sciences and its application to projects within the US EPA....
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SYNOPSES OF FEDERAL DEMONSTRATIONS OF INNOVATIVE REMEDIATION TECHNOLOGIES |
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This collection of abstracts, compiled by the Federal Remediation Technology Roundtable, describes field demonstrations of innovative technologies to treat hazardous waste. The col...
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SYNTHETIC SUBSTRATA FOR PROPAGATION AND TESTING OF SOIL AND SEDIMENT ORGANISMS |
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A method for formulation of synthetic substrata (soils and sediments) is given. ubmerged, wetland, and terrestrial plants, earthworms, crustaceans, and vertebrates were maintained ...
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Soil carbon sequestration: Quantifying this ecosystem service |
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Soils have a crucial role in supplying many goods and services that society depends upon on a daily basis. These include food and fiber production, water cleansing and supply, nut...
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Superfund Innovative Technology Evaluation - Demonstration Bulletin: In-Situ Soil Stabilization |
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In-situ stabilization technology immobilizes organics and inorganic compounds in wet or dry soils by using reagents (additives) to polymerize with the soils and sludges producing a...
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Superfund Innovative Technology Evaluation: Demonstration Bulletin: Organic Extraction Utilizing Solvents |
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This technology utilizes liquified gases as the extracting solvent to
remove organics, such as hydrocarbons, oil and grease, from wastewater or contaminated sludges and soils. Car...
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TALL FESCUE RESPONSE AND SOIL PROPERTIES FOLLOWING SOIL AMENDMENT WITH TANNERY WASTES |
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Field plots were established in 1978 and 1979 on a Willamette sil in western Oregon to evaluate the effects of chrome tannery wastes on tall fescue (Festuca arundinacea) and soil p...
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TCLP AS A MEASURE OF TREATMENT EFFECTIVENESS: RESULTS OF TCLP WORK COMPLETED ON DIFFERENT TREATMENT TECHNOLOGIES FOR CERCLA SOILS |
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The 1984 Hazardous and Solid Waste Amendments (HSWA) of the Resources Conservation and Recovery Act (RCRA) require that EPA either ban the disposal of hazardous wastes to the land ...
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TECHNICAL ASSESSMENT OF LOW-PRESSURE PIPE WASTEWATER INJECTION SYSTEMS |
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The 'Low Pressure Pipe Wastewater Injection System', or LPP system, combines several innovative subsurface wastewater absorption system concepts into a unique onsite design package...
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TECHNICAL REPORT - ADVANCES IN ENCAPSULATION TECHNOLOGIES FOR THE MANAGEMENT OF MERCURY-CONTAMINATED HAZARDOUS WASTES |
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Although industrial and commercial uses of mercury have been curtailed in recent times, there is
a demonstrated need for the development of reliable hazardous waste management t...
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TECHNOLOGICAL APPROACHES TO THE CLEANUP OF RADIOLOGICALLY CONTAMINATED SUPERFUND SITES |
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The report identifies technologies that may be useful in removing or stabilizing radiological contamination at those uncontrolled hazardous waste (Superfund) sites that contain rad...
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TECHNOLOGY DEMONSTRATION SUMMARY. BABCOCK AND WILCOX CYCLONE FURNACE VITRIFICATION TECHNOLOGY (EPA/540/SR-92/017) |
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A Superfund Innovative Technology Evaluation (SITE) Demonstration of the Babcock & Wilcox Cyclone Furnace Vitrification Technology was conducted in November 1991. This Demonstratio...
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TECHNOLOGY EVALUATION REPORT SITE PROGRAM DEMONSTRATION TEST, HAZCON SOLIDIFICATION, DOUGLASSVILLE, PENNSYLVANIA. VOLUME 1 |
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The major objectives of the HAZCON Solidification SITE Program Demonstration Test were to develop reliable performance and cost information. The HAZCON process mixes the hazardous ...
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TECHNOLOGY EVALUATION REPORT SITE PROGRAM DEMONSTRATION TEST, HAZCON SOLIDIFICATION, DOUGLASSVILLE, PENNSYLVANIA. VOLUME 2 |
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The major objectives of the HAZCON Solidification SITE Program Demonstration Test were to develop reliable performance and cost information. The HAZCON process mixes the hazardous ...
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TECHNOLOGY EVALUATION REPORT SITE PROGRAM DEMONSTRATION TEST, TERRA VAC IN SITU VACUUM EXTRACTION SYSTEM, GROVELAND MASSACHUSETTS |
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An evaluation was made of the performance of Terra Vac Inc.'s vacuum extraction systerl during a 56-day demonstration test run at Valley Manufactured Product Conpany's site in Grov...
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TECHNOLOGY EVALUATION REPORT, SITE PROGRAM DEMONSTRATION OF THE INTERNATIONAL WASTE TECHNOLOGIES IN SITU STABILIZATION/-SOLIDIFICATION TECHNOLOGY, HIALEAH, FL, VOLUME II |
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A demonstration of the International Waste Technologies (IWT) process, utilizing the Geo-Con, Inc., deep-soil-mixing equipment has been performed under the Superfund Innovative Tec...
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TECHNOLOGY EVALUATION REPORT: BABCOCK AND WILCOX CYCLONE FURNACE VITRIFICATION TECHNOLOGY |
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The Babcock & Wilcox (B&W) Cyclone Furnace Vitrification Technology is a treatment process for contaminated soils. he process was evaluated to determine its ability to destroy semi...
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TECHNOLOGY EVALUATION REPORT: ECO LOGIC INTERNATIONAL GAS-PHASE CHEMICAL REDUCTION PROCESS - BAY CITY, MICHIGAN |
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This document reviews the results of a 28 day demonstration program conducted by the Superfund Innovative Technology Evaluation (SITE) Program. co Logic International owners and op...
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TECHNOLOGY EVALUATION REPORT: ECO LOGIC INTERNATIONAL GAS-PHASE CHEMICAL REDUCTION PROCESS - BAY CITY, MICHIGAN - APPENDICES |
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This document reviews the results of a 28 day demonstration program conducted by the Superfund Innovative Technology Evaluation (SITE) Program. co Logic International owners and op...
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TECHNOLOGY EVALUATION REPORT: INTERNATIONAL WASTE TECHNOLOGIES/GEO-CON IN SITU STABILIZATION/SOLIDIFICATION - VOLUME III - UPDATE REPORT |
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The long-term performance tests provide information on the first follow-up sampling and analysis on the SITE program demonstration of the International Waste Technologies additive,...
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TECHNOLOGY EVALUATION REPORT: INTERNATIONAL WASTE TECHNOLOGIES/GEO-CON IN SITU STABILIZATION/SOLIDIFICATION - VOLUME IV - UPDATE REPORT |
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The long-term performance tests provide information on the first follow-up sampling and analysis on the SITE program demonstration of the International Waste Technologies additive,...
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TECHNOLOGY EVALUATION REPORT: SILICATE TECHNOLOGY CORPORATION - SOLIDIFICATION/STABILIZATION OF PCP AND INORGANIC CONTAMINANTS IN SOILS - SELMA, CA |
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This Technolgy Evaluation Report evaluates the solidification/stabilization process of Silicate Technology Corporation (STC) for the on-site treatment of contaminated soil The STC...
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TECHNOLOGY EVALUATION REPORT: SILICATE TECHNOLOGY CORPORATION, SOLIDIFICATION/STABILIZATION OF PCP AND INORGANIC CONTAMINANTS IN SOILS SELMA, CA |
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A Superfund Innovative Technology Evaluation demonstration was conducted to evaluate the ability of the solidification/ stabilization treatment process developed by Silicate Techno...
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TECHNOLOGY EVALUATION REPORT: SITE PROGRAM DEMONSTRATION - EPA RREL'S MOBILE VOLUME REDUCTION UNIT |
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This document provides a detailed description of the U.S. Environmental Protection Agency (EPA) Risk Reduction Laboratory's (RREL's) Volume Reduction Unit (VRU) process and system ...
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TECHNOLOGY EVALUATION REPORT: SITE PROGRAM DEMONSTRATION TEST, TERRA VAC IN SITU VACUUM EXTRACTION SYSTEM, GROVELAND, MASSSACHUSETTS (VOLUME II) |
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An evaluation was made of the performance of Terra Vac Inc.'s vacuum extraction system during a 56-day demonstration test run at Valley Manufactured Product Conpany's site in Grove...
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TERRA VAC IN SITU VACUUM EXTRACTION SYSTEM: APPLICATIONS ANALYSIS REPORT |
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This report analyzes the resu1ts from the SITE program's 56-day demonstration at the Valley Manufactured product company's site in Groveland, Massachusetts. Conclusions were reache...
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TERRA-KLEEN RESPONSE GROUP, INC. SOLVENT EXTRACTION TECHNOLOGY: INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the results of a field demonstration conducted under the SITE program. The technology which was demonstrated was a solvent extraction technology developed b...
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TEST CELL STUDIES OF RADON ENTRY |
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The report gives results of a study to contrast the effectiveness of slab-in-stem wall (SSW) with floating slab (FS) construction practices, to measure radon transport and entry fo...
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THE CONTROL OF NITRATE AS A WATER POLLUTANT |
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This study was based on the premise that the most logical approach to reducing nitrate leaching in soils was to limit the amount of nitrate in the soil solution at any one time. Me...
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THE CURRENT STATUS OF AS RESEARCH IN THE USEPA'S OFFICE OF RESEARCH AND DEVELOPMENT |
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The mission of the ORD is "to conduct leading-edge research and foster the sound use of science and technology in fulfilling EPA's mission to protect human health and safeguard the...
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THE CURRENT STATUS OF AS RESEARCH IN THE USEPA'S OFFICE OF RESEARCH AND DEVELOPMENT |
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The mission of the ORD is "to conduct leading-edge research and foster the sound use of science and technology in fulfilling EPA's mission to protect human health and safeguard the...
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THE DIRT ON SOILS |
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This keynote presentation will provide basic information regarding the physical, chemical, and biological importance of soils to 50 second grade teachers within the Cincinnati Publ...
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THE ECOLOGICAL EFFECTS OF TRICHLORACETIC ACID (TCAA) IN THE ENVIRONMENT |
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Trichloroacetic acid (TCAA) is a member of the family of compounds known as chloroacetic acids, which includes mono-, di- and trichloroacetic acid. The significant property these ...
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THE EFFECTS OF DIFFERENT SAMPLE CONCENTRATIONS ON THE STRUCTURE OF MICROBIAL COMMUNITIES USING PHOSPHOLIPID FATTY ACID ANALYSIS |
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Phospholipid fatty acid (PLFA) analysis is a powerful tool for determination of microbial community structures in soils and sediments. However, accurate determination of total mic...
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THE EFFECTS OF ECOSYSTEM RESTORATION ON NITROGEN PROCESSING IN AN URBAN MID-ATLANTIC PIEDMONT STREAM |
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Elevated nitrate levels in streams and groundwater pose human and ecological threats. The US EPA, USGS, Institute of Ecosystem Studies, and Baltimore County Dept. of Environmental...
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THE EFFECTS OF ECOSYSTEM RESTORATION ON NITROGEN PROCESSING IN AN URBAN MID-ATLANTIC PIEDMONT STREAM |
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Elevated nitrate levels in streams and groundwater pose human and ecological threats. The US Environmental Protection Agency, US Geological Survey, Institute of Ecosystem Studies,...
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THE ENANTIOMERS OF CHIRAL POLLUTANTS POSE DIFFERENT RISKS |
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In order to make more accurate risk assessments for chiral pesticides and other pollutants, it is necessary to understand the relative persistence and effects of their enantiomers....
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THE ESTIMATED LIKELIHOOD OF NUTRIENTS AND PESTICIDES IN NONTIDAL HEADWATER STREAMS OF THE MARYLAND COASTAL PLAIN DURIONG BASE FLOW |
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Water quality in nontidal headwater (first-order) streams of the Coastal Plain during base flow in the late winter and spring is related to land use, hydrogeology, and other natura...
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THE EXPRESSION OF MULTIPLE FUNCTIONS IN URBAN FORESTED WETLANDS |
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Forested wetlands in metropolitan areas function to support biodiversity, protect water quality, store floodwaters, and maintain streamflow, but they also function to provide natur...
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THE GENESIS, CLASSIFICATION, AND MAPPING OF SOILS IN URBAN AREAS. (R825792) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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THE IMPORTANCE OF BIOAVAILABILITY IN REMEDIATION OF METAL CONTAMINATED SOILS |
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Reduction in exposure to soil metal contamination has typically been accomplished by soil removal and off site disposal, by covering, or by diluting with uncontaminated soil. Cost,...
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THE IMPORTANCE OF ORGANIC MATTER DISTRIBUTION AND EXTRACT SOIL:SOLUTION RATIO ON THE DESORPTION OF HEAVY METALS FROM SOILS |
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The lability (mobility and bioavailability) of metals varies significantly with soil properties for similar total soil metal concentrations. We studied desorption of Cu, Ni and Zn,...
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THE IMPORTANCE OF ORGANIC MATTER DISTRIBUTION AND EXTRACT SOIL:SOLUTION RATIO ON THE DESORPTION OF HEAVY METALS FROM SOILS: JOURNAL ARTICLE |
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NRMRL-CIN-1768
Ying, Y, Impellitteri**, C.A., You, S-J., and Allen, H.E. The Importance of Organic Matter
Distribution and Extract Soil:Solution Ratio on the Desorption of Heavy M...
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THE INFLUENCE OF CITRATE ON ADSORPTION OF ZINC IN SOILS. (R825549C046) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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THE INFLUENCE OF IRON AND SULFUR CYCLING ON ARSENIC PARTITIONING IN SOILS AND SEDIMENTS |
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Field evidence suggests that arsenic solid-solution partitioning in natural systems is often tied to iron and sulfur cycling. This is likely due to the coprecipitation of arsenic ...
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THE INFLUENCE OF MINERAL REACTIONS ON THE ENVIRONMENTAL FATE OF METALS IN SOILS AND SEDIMENTS |
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Significant progress has been made in elucidating sorption reactions that control the partitioning of metals from solution to mineral surfaces in contaminated soil/sediment systems...
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THE INVENTORY OF SOURCES OF DIOXIN IN THE UNITED STATES (EXTERNAL REVIEW DRAFT 2005) |
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Background
The purpose of The Inventory of Sources of Dioxin in the United States (2005 External Review Dr...
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THE POTENTIAL OF AN EARTHWORM AVOIDANCE TEST FOR EVALUATION OF HAZARDOUS WASTE SITES |
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An earthworm avoidance test has potential advantages for use in evaluation of hazardous wastes sites. Because organisms often exhibit behavioral responses at lower levels of stress...
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THE RAPID OPTICAL TOOL (TM) LASER-INDUCED FLUORESCENCE SYSTEM FOR SCREENING OF PETROLEUM HYDROCARBONS IN SUBSURFACE SOILS |
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The Consortium for Site Characterization Technology (CSCT) has established a formal program to accelerate acceptance and application of innovative monitoring and site characterizat...
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THE RETC CODE FOR QUANTIFYING THE HYDRAULIC FUNCTIONS OF UNSATURATED SOILS |
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This report describes the RETC computer code for analyzing the soil water retention and hydraulic conductivity functions of unsaturated soils. These hydraulic properties are key pa...
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THE ROLES OF ANTHROPOGENIC WATERSHED LOADING AND CLIMATE VARIABILITY ON NITROGEN FLUXES TO THE POTOMAC RIVER ESTUARY |
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To better anticipate responses of estuaries and coastal ecosystems to human activity and climate variation, it is useful to examine the historical record of nitrogen fluxes from wa...
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THE SWIRL CONCENTRATOR FOR EROSION RUNOFF TREATMENT |
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A device for the partial removal of erosion products in stormwater runoff has been developed. The swirl concentrator as an erosion control device has been designed to concentrate t...
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THE USE OF A PRB TO TREAT GROUNDWATER IMPACTED BY COAL-COMBUSTION BY-PRODUCTS |
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The burning of coal for the production of electricity generates combustion by-products such as boiler bottom ash and fly ash. These ashes have the potential to release arsenic (As...
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THE USE OF CATIONIC SURFACTANTS TO MODIFY AQUIFER MATERIALS TO REDUCE THE MOBILITY OF HYDROPHOBIC ORGANIC COMPOUNDS |
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Cationic surfactants can be used to modify surfaces of soils and subsurface materials to promote sorption of hydrophobic organic compounds (HOC) and retard their migration. For exa...
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THE USE OF IN VITRO METHODS TO EXAMINE MECHANISMS OF BIOACCESSIBILITY |
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The bioavailability of Pb and As to humans and living organisms is important. There have been many proposed in vitro gastrointestinal assays. Most, if not all of these assays, have...
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THE USE OF INSITU TREATMENT TO REDUCE TOXICITY |
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Mining or smelting of lead and zinc ores generates mine tailing and smelter slags rich in lead, zinc, and cadmium. Old smelting operations have commonly caused severly contaminat...
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THEORETICAL AND EXPERIMENTAL MODELING OF MULTI-SPECIES TRANSPORT IN SOILS UNDER ELECTRIC FIELDS |
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Electrokinetics employs the use of electrodes implanted in soils-contaminated media. Electrodes are supplied with direct current (dc) facilitating ionic transport and subsequent r...
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THEORETICAL DEVELOPMENT AND ANALYTICAL SOLUTIONS FOR TRANSPORT OF VOLATILE ORGANIC COMPOUNDS IN DUAL-POROSITY SOILS |
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Predicting the behavior of volatile organic compounds in soils or sediments is necessary for managing their use and designing appropriate remedial systems to eliminate potential th...
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THERMAL DESORPTION OF PETROLEUM CONTAMINATED SOILS |
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The U.S. Environmental Protection Agency recently funded a study which addresses the treatment of soils contaminated by petroleum hydrocarbons using low temperature thermal desorpt...
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THERMAL ENCAPSULATION OF METALS IN SUPERFUND SOILS |
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Superfund sites frequently contain both heavy metals and organic hazardous waste. f not properly controlled, the metals may be changed to a more leachable form and may also be emit...
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THERMAL NEUTRON INTENSITIES IN SOILS IRRADIATED BY FAST NEUTRONS FROM POINT SOURCES. (R825549C054) |
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Thermal-neutron fluences in soil are reported for selected fast-neutron sources, selected soil types, and selected irradiation geometries. Sources include 14 MeV neutrons from a...
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THERMICANUS AEGYPTIUS GEN. NOV., SP. NOV., ISOLATED FROM OXIC SOIL, A FERMENTATIVE MICROAEROPHILE THAT GROWS COMMENSALLY WITH THE THERMOPHILIC ACETOGEN MOORELLA THERMOACETICA |
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A thermophilic, fermentative microaerophile (ET-5b) and a thermophilic acetogen (ET-5a) were coisolated from oxic soil obtained from Egypt. The 16S rRNA gene sequence of ET-5a was ...
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TORONTO HARBOUR COMMISSIONERS (THC) SOIL RECYCLE TREATMENT TRAIN - APPLICATIONS ANALYSIS REPORT |
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The Toronto Harbour Commissioners (THC) have developed a soil treatment train designed to treat inorganic and organic contaminants in soils. THC has conducted a large-scale demonst...
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TOTAL ALKALINITY OF SURFACE WATERS: A MAP OF THE WESTERN REGION |
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The map of total alkalinity of surface waters in the western region illustrates the general patterns of the relative potential sensitivity of surface waters to acidic deposition. A...
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TOTAL ORGANIC CARBON DETERMINATIONS IN NATURAL AND CONTAMINATED AQUIFER MATERIALS |
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Quantifying the total organic carbon (TOC) content of soils and aquifer materials is essential for understanding subsurface chemistry during environmental site characterization. on...
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TOWARDS A CORE DATA SET FOR LANDSCAPE ASSESSMENTS |
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One of the primary goals of the NATO Committee on Challenges to Modern Society (CCMS) Landscape Pilot Study is to further develop, apply, and share landscape assessment technologie...
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TOWARDS A STANDARD METHOD FOR THE MEASUREMENT OF ORGANIC CARBON IN SEDIMENTS |
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The precisions achieved by two different methods for analysis of organic carbon in soils and sediments were determined and compared.The first method is a rapid dichromate oxidation...
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TOXIC METALS IN THE ENVIRONMENT: THERMODYNAMIC CONSIDERATIONS FOR POSSIBLE IMMOBILIZATION STRATEGIES FOR PB, CD, AS, AND HG |
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The contamination of soils by toxic metals is a widespread, serious problem that demands immediate action either by removal or immobilization, which is defined as a process which p...
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TOXIC ORGANIC VOLATILIZATION FROM LAND TREATMENT SYSTEMS |
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Methodology was evaluated for estimating volatilization of toxic organic chemicals from unsaturated soils. Projections were compared with laboratory data for simulated rapid infilt...
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TOXICITY BIOASSAY AND ELUATE HEAVY METALS ANALYSIS RESULTS OF THE BENCH SCALE STABILIZATION STUDY OF SOILS FROM THE UNITED CHROME SUPERFUND NFL SITE CORVALLIS, OREGON |
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In support of Environmental Protection Agency Region 10 and their United Chrome studies the staff at Environmental Research Laboratory-Corvallis performed toxicity bioassays and se...
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TRACE AND POTENTIALLY TOXIC ELEMENTS ASSOCIATED WITH URANIUM DEPOSITS IN SOUTH TEXAS |
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The environmentally sensitive trace elements molybdenum, arsenic, and selenium are concentrated with uranium in ore deposits in South Texas. Cattle grazing in some pastures in mini...
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TRACE ELEMENT BINDING DURING STRUCTURAL TRANSFORMATION IN IRON OXIDES |
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Iron (hydr)oxides often control the mobility of inorganic contaminants in soils and sediments. A poorly ordered form of ferrihydrite is commonly produced during rapid oxidation of...
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TRACE ELEMENT CHARACTERIZATION OF COAL WASTES. FOURTH ANNUAL PROGRESS REPORT, OCTOBER 1, 1978-SEPTEMBER 30, 1979 |
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In the past year assessment studies of low-sulfur coal wastes from the Appalachian Region have been continued. These included mineralogical and trace elemental analyses on these ma...
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TRACE ELEMENT CHARACTERIZATION OF COAL WASTES. THIRD ANNUAL PROGRESS REPORT, OCTOBER 1, 1977-SEPTEMBER 30, 1978 |
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The report gives third year results of a program to characterize the trace element content of coal waste. In 1978 laboratory experiments were performed to investigate the efficacy ...
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TRACE ELEMENT CHEMISTRY IN RESIDUAL-TREATED SOIL: KEY CONCEPTS AND METAL BIOAVAILABILITY |
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Trace element solubility and availability in land-applied residuals is governed by fundamental chemical reactions between metal constituents, soil, and residual components. Iron, a...
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TRACE ELEMENTS AND BENEFICIAL USE OF ORGANIC RESOURCES |
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This paper summarizes information on risk assessment for metals (Cd, Pb, As, Zn, Cu, Hg) in compost products used in agriculture or horticulture, and progress in research to develo...
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TRACE ELEMENTS AND BENEFICIAL USE OF ORGANIC RESOURCES |
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This paper summarizes information on risk assessment for metals (Cd, Pb, As, Zn, Cu, Hg) in compost products used in agriculture or horticulture, and progress in research to develo...
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TRACE METALS AND STATIONARY CONVENTIONAL COMBUSTION PROCESSES: VOLUME 1. TECHNICAL REPORT |
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The report gives results of a search of U.S. literature to identify published information about trace metals and Stationary Conventional Combustion Processes (SCCPs). The report su...
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TRACE METALS AND STATIONARY CONVENTIONAL COMBUSTION PROCESSES: VOLUME 2. BIBLIOGRAPHY |
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The report gives results of a search of U.S. literature to identify published information about trace metals and Stationary Conventional Combustion Processes (SCCPs). It summarizes...
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TRACERS FORECAST THE PERFORMANCE OF HAPL REMEDIATION PROJECTS |
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Organic tracers which partition to residual NAPL contamination have been used to estimate
the mass of contamination in the swept zone of the tracer. This paper expands on this...
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TRACERS FORECAST THE PERFORMANCE OF NAPL REMEDIATION PROJECTS |
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Organic tracers which partition to residual NAPL contamination have been used to estimate the mass of contamination in the swept zone of the tracer. This paper expands on this app...
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TRANSACTIONS OF THE AIR AND WASTE MANAGEMENT ASSOCIATION: EFFECTS OF AIR POLLUTION ON WESTERN FOREST |
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This volume contains 35 papers from a Symposium held June 29-30, 1989 in Anaheim, CA. opics addressed include air quality and deposition, forest condition and growth trends, physio...
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TRANSFORMATION AND MOBILIZATION OF ARSENIC ADSORBED ON GRANULAR FERRIC HYDROXIDE UNDER BIO-REDUCTIVE CONDITIONS |
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Biotic and abiotic reduction of arsenic (V) and iron (III) influences the partioning of arsenic (As) between the solid and aqueous phases in soils, sediments and wastes. In this st...
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TRANSFORMATION AND TRANSPORT OF VINCLOZOLIN FROM SOIL TO AIR |
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A laboratory chamber was designed and used to determine the headspace flux of the fungicide vinclozolin (3-(3,5-dichlorophenyl)-5-methyl-5-vinyl-oxzoli-dine-2.4-dione) and its th...
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TRANSPORT AND TRANSFORMATION OF HEXAVALENT CHROMIUM THROUGH SOILS AND INTO GROUND WATER |
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A detailed characterization of the underlying and adjacent soils of a chrome-plating shop was performed to provide information on the extent of soil and aquifer contamination at th...
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TRANSPORT OF TRICHLOROETHYLENE (TCE) IN NATURAL SOIL BY ELECTROOSMOSIS |
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Contamination in low permeability soils poses a significant technical challenge to in-situ remediation, primarily due to low mobilization of the contaminants and difficulty in unif...
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TRANSPORT, AIR-SURFACE EXCHANGE AND LANDSCAPE ACCUMULATION OF AIRBORNE POLLUTANTS DEPOSITED ONTO RURAL CATCHMENTS: THE CASE OF MERCURY |
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This paper presents a modeling analysis of airborne mercury fate in rural catchments by coupling components of simulation models developed and published previously by the authors. ...
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TREATABILITY POTENTIAL FOR EPA LISTED HAZARDOUS WASTES IN SOIL |
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This study developed comprehensive screening data on the treatability in soil of: (a) specific listed hazardous organic chemicals, and (b) waste sludge from explosives production (...
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TREATABILITY STUDIES FOR WOOD PRESERVING SITES |
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The U.S. Environmental Protection Agency (EPA), National Risk Management Research Laboratory (NRMRL), Site Management Support Branch, conducted a comprehensive treatability project...
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TREATABILITY STUDY BULLETIN: MOBILE VOLUME REDUCTION UNIT AT THE ESCAMBIA SUPERFUND SITE |
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The RREL has developed a pilot-scale Mobile Volume Reduction Unit (VRU) to determine the feasibility of soil washing for the remediation of contaminated soils. This mobile unit, mo...
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TREATABILITY STUDY BULLETIN: MOBILE VOLUME REDUCTION UNIT AT THE SAND CREEK SUPERFUND SITE |
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The Risk Reduction Engineering Laboratory (RREL) Releases Control Branch (RCB) has developed a pilot-scale Mobile Volume Reduction Unit (VRU) to determine the feasibility of soil w...
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TREATABILITY STUDY REPORT OF GREEN MOUNTAIN LABORATORIES, INC.'S BIOREMEDIATION PROCESS, TREATMENT OF PCB CONTAMINATED SOILS, AT BEEDE WASTE OIL/CASH ENERGY SUPERFUND SITE, PLAISTOW, NEW HAMPSHIRE |
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In 1998, Green Mountain Laboratories, Inc. (GML) and the USEPA agreed to carry out a Superfund Innovative Technology Evaluation (SITE) project to evaluate the effectiveness of GML'...
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TREATING CHLORINATED WASTES WITH THE KPEG PROCESS |
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The two reports summarized here describe development of the alkali metal (polyethylene gylycolate (APEG) chemical technology to dechlorinate hazardous hydrocarbons in soils and its...
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TREATMENT OF A PENTACHLOROPHENOL-AND CRESOTE-CONTAMINATED SOIL USING THE LIGNIN-DEGRADING FUNGUS PHANEROCHAETE SORDIDA: A FIELD DEMONSTRATION |
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The feasibility of large-scale fungal bioaugmentation was evaluated by assessing the ability of the lignin-degrading fungus Phanerochaete sordida to decrease the soil concentration...
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TREATMENT OF CONTAMINATED SOILS WITH AQUEOUS SURFACTANTS |
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The overall objective of the project was to develop a technical base for decisions on the use of chemical countermeasures at releases of hazardous substances. Work included a liter...
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TREATMENT OF HAZARDOUS PETROLEUM CONTAMINATED SOILS BY THERMAL DESORPTION TECHNOLOGIES |
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Spills, leaks, and accidental discharges of petroleum products have contaminated soil at thousands of sites in the United States. ne remedial action technique for treating petroleu...
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TREATMENT TECHNOLOGY FOR REMEDIATION OF WOOD PRESERVING SITES: OVERVIEW |
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This is the first in a series of five articles describing the applicability, performance and cost of technologies for the remediation of contaminated soil and water at wood preserv...
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TRENDS AND PATTERNS IN LAKE ACIDIFICATION IN THE STATE OF VERMONT: EVIDENCE FROM THE LONG-TERM MONITORING PROJECT |
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Twenty-four low acid neutralizing capacity (ANC lakes in Vermont have been monitored since 1980 to characterize their chemical variability and to determine if they exhibit temporal...
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Technology Demonstration Summary Technology Evaluation Report, Site Demonstration Test, Hazcon Solidification, Douglassville, Pennsylvania |
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The major objective of the HAZCON Solidification SITE Program
Demonstration Test was to develop reliable performance and cost
information. The demonstration occurred at a 50-acr...
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Technology Demonstration Summary, Chemfix Solidification/Stabilization Process, Clackamas, Oregon |
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ChemfIx's* patented stabilization/solidification technology was demonstrated at the Portable Equipment Salvage Company (PESC) site in Clackamas, Oregon, as part of the Superfund ...
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Technology Demonstration Summary: CF Systems Organics Extraction System, New Bedford Harbor, Massachusetts |
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The Site Program demonstration of CF Systems' organics extraction technology was conducted to obtain specific operating and cost information that could be used in evaluating the po...
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Technology Demonstration Summary: International Waste Technologies In Situ Stabilization/Solidification, Hialeah, Florida |
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An evaluation was performed of the International Waste Technologies (IWT) HWT-20 additive and the Geo-Con, Inc. deep-soil-mixing equipment for an in situ stabilization/solidificati...
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Terra Vac In Situ Vacuum Extraction System: Applications Analysis Report |
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This document is an evaluation of the Terra Vac in situ vacuum extraction system and its applicability as a treatment method for waste site cleanup.
This report analyzes the re...
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UAF RADIORESPIROMETRIC PROTOCOL FOR ASSESSING HYDROCARBON MINERALIZATION POTENTIAL IN ENVIRONMENTAL SAMPLES |
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Following the EXXON Valdez Oil Spill, a radiorespirometric protocol was developed at the University of Alaska Fairbanks (UAF) to assess the potential for microorganisms in coastal ...
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UNDERSTANDING THE ROLE OF OZONE STRESS IN ALTERING BELOWGROUND PROCESSES |
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Forested ecosystems are comprised of tremendous biological diversity and functional complexity both above and belowground. Soil ecosystems are known to contain thousands of specie...
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UNIFYING QUANTITATIVE ANALYSIS OF SOIL TEXTURE: IMPROVEMENT OF PRECISION AND EXTENSION OF SCALE |
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The paper extends a procedure for transforming the standard textural triangle into a new diagram based on mean particle size dg, and standard deviations of particle size, og. Value...
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UNSATURATED SOIL HYDRAULIC PROPERTIES FROM REDISTRIBUTION OF INJECTED WATER |
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An analytical and experimental investigation of a matching method for the determination of the parameters in the Brooks-Corey K(h) and h(theta) relationships is presented. The meth...
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UPTAKE AND TRANSFORMATION OF EXPLOSIVES BY EASTERN COTTONWOOD (POPULUS DELTOIDES) |
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The explosives 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX) have been extensively used by...
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URBANIZATION EFFECTS ON TREE GROWTH IN THE VICINITY OF NEW YORK CITY |
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Plants in urban ecosystems are exposed to many pollutants and higher temperatures, CO2 and nitrogen deposition than plants in rural areas. Although each factor has a detrimental or...
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USE OF A PRIMARY SCREENING METHOD TO CHARACTERIZE MICROFUNGAL DIVERSITY |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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USE OF CATIONIC SURFACTANT TO MODIFY SOIL SURFACES TO PROMOTE SORPTION AND RETARD MIGRATION OF HYDROPHOBIC ORGANIC COMPOUNDS |
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Cationic surfactants can be used to modify surfaces of soils and subsurface materials to promote adsorption of hydrophobic organic compounds (HOC). atch and column experiments were...
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USE OF CATIONIC SURFACTANTS TO MODIFY AQUIFER MATERIALS TO REDUCE THE MOBILITY OF HYDROPHOBIC ORGANIC COMPOUNDS |
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Cationic surfactants can be used to modify surfaces of soils and subsurface materials to promote sorption of hydrophobic organic compounds (HOC) and retard their migration. or exam...
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USE OF CLIMATIC DATA IN ESTIMATING STORAGE DAYS FOR SOILS TREATMENT SYSTEMS |
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Computer programs have been developed to estimate storage needs for Soil Treatment Systems from analyses of daily climatological data. One program uses a set of thresholds for temp...
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USE OF DREDGINGS FOR LANDFILL. TECHNICAL REPORT NO. 1. ENGINEERING CHARACTERISTICS OF POLLUTED DREDGINGS |
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The engineering properties of most dredgings were found to be quite similar to those of fine-grained, organic soils, and the general notion that maintenance dredgings are soft and ...
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USE OF DREDGINGS FOR LANDFILL: SUMMARY TECHNICAL REPORT |
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This research program was initiated with the overall objective of evaluating the usefulness of dredged sediments as landfill material. The study is limited to the deposition of pol...
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USE OF ELECTROKINETICS FOR HAZARDOUS WASTE SITE REMEDIATION |
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The Superfund Innovative Technology Evaluation (SITE) program was authorized as part of the 1986 amendments to the Superfund legislation. t represents a joint effort between the U....
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USE OF ELECTROKINETICS FOR HAZARDOUS WASTE SITE REMEDIATION |
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The Superfund Innovative Technology Evaluation (SITE) program was authorized as part of the 1986 amendments to the Superfund legislation. It represents a joint effort between U.S. ...
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USE OF FATTY ACID STABLE CARBON ISOTOPE RATIO TO INDICATE MICROBIAL CARBON SOURCE IN TROPICAL SOILS |
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We use measurements of the concentration and stable carbon isotope ratio of individual microbial phospholipid fatty acids (PLFAs) in soils as indicators of live microbial bio...
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USE OF SALMONELLA MICROSUSPENSION BIOASSAY TO DETECT THE MUTGENICITY OF MUNITIONS COMPOUNDS AT LOW CONCENTRATIONS |
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Use of a Salmonella Microsuspension Bioassay to Detect the Mutagenicity of
Munitions Compounds at Low Concentrations
Abstract
Past production and ha...
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USE OF SEWAGE SLUDGE ON AGRICULTURAL AND DISTURBED LANDS |
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Results of 8 field studies of long-term use of digested sewage on agricultural and disturbed lands are presented. The studies included: (1) response of corn grown on 3 soil types p...
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USE OF SHORT-TERM BIOASSAYS TO EVALUATE ENVIRONMENTAL IMPACT OF LAND TREATMENT OF HAZARDOUS INDUSTRIAL WASTE |
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A four phase study was conducted to evaluate utility of short-term bioassays in monitoring environmental impact of land treatment of hazardous waste. During phase one, three microb...
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USE OF STABLE CARBON ISOTOPE RATIOS OF FATTY ACIDS TO EVALUATE MICROBIAL CARBON SOURCES IN TERRESTRIAL ENVIRONMENTS |
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We use measurements of the concentration and stable carbon isotopic ratio (D 13C) of individual microbial phospholipid fatty acids (PLFAs) in soils as indicators of live microbial ...
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USE OF THE COMPOSITION AND STABLE CARBON ISOTOPE RATIO OF MICROBIAL FATTY ACIDS TO STUDY CARBON CYCLING |
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We use measurements of the concentration and stable carbon isotopic ratio (Gamma 13C) of individual microbial phospholipid fatty acids (PLFAS) in soils and sediments as indicators ...
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USE OF THE COMPOSITION AND STABLE CARBONIISOTOPE RATIO OF MICROBIAL FATTY ACIDS TO STUDY CARBON CYCLING |
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We use measurements of the concentration and stable carbon isotopic ratio (*13C) of individual microbial phospholipid fatty acids (PLFAs) in soils and sediments as indicators of li...
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USEPA METHOD STUDY 37 - SW-846 METHOD 3050, ACID DIGESTION OF SEDIMENTS, SLUDGES AND SOILS BY AA-DIRECT ASPIRATION |
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An interlaboratory collaborative study was conducted to determine the precision and accuracy of Method 3050 for the analysis of 23 elements in sediments, sludqes and soils. Method ...
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USEPA ORD TECHNOLOGY TRANSFER ACTIVITIES ON MERCURY RESEARCH |
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Anthropogenic releases of mercury to air, water and land have adversely impacted human health and the environment for many years. In fact, according to the 1997 Mercury Study Repor...
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USEPA'S RESEARCH PROGRAM ON REMEDIATION AND CONTAINMENT OF ARSENIC AND MERCURY IN SOILS, INDUSTRIAL WASTES, AND GROUNDWATER |
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In the U.S. and around the world, mercury and arsenic contaminated soils, industrial wastes, and groundwater are difficult to effectively and cheaply remediate and contain. Mercury...
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USER'S MANUAL FOR PREMINING PLANNING OF EASTERN SURFACE COAL MINING. VOLUME 3. GEOLOGY OF EASTERN COALFIELDS |
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This volume is one of a series of six reports designed to provide the surface coal mining industry and its regulators with a comprehensive review of the best available methods for ...
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USING 19F-NMR SPECTROSCOPY TO DETERMINE TRIFLURALIN BINDING TO SOIL |
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Trifluralin is a widely used herbicide for the control of broad leaf weeds in a variety of crops. Its binding to soil may result in significant losses in herbicidal activity and a ...
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USING BIOASSAYS TO EVALUATE THE PERFORMANCE OF RISK MANAGEMENT TECHNIQUES |
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Often, the performance of risk management techniques is evaluated by measuring the concentrations of the chemials of concern before and after risk management effoprts. However, usi...
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USING BIOPOLYMERS TO REMOVE HEAVY METALS FROM SOIL AND WATER |
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Chemical remediation of soils may involve the use of harsh chemicals that generate waste streams and may adversely affect the soil's integrity and ability to support vegetation. hi...
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USING CONONICAL CORRELATION TO DETECT ASSOCIATION OF LANDSCAPE METRICS WITH WATER BIOLOGICAL AND CHEMICAL PROPERTIES IN SAVANNAH RIVER BASIN |
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Surface water quality is related to conditions in the surrounding geophysical environment, including soils, landcover, and anthropogenic activities. For example, clearing vegetatio...
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USING METHANOL-WATER SYSTEMS TO INVESTIGATE PHENANTHRENE SORPTION-DESORPTION ON SEDIMENT |
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Sorption isotherm nonlinearity, sorption-desorption hysteresis, slow desorption kinetics, and other nonideal phenomena have been attributed to the differing sorptive characteristic...
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UTILIZATION OF BACTERIA TO REMEDIATE CONTAMINATED SOILS AND SEDIMENTS IN THE US: LASAGNA AND OTHER TREATMENTS |
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This is an overview of the work underway at USEPA/ORD/NRMRL's Center Hill Microbiology Laboratory on bioremediation of contaminated soils and sediments. The Laboratory has isolated...
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Urban Marine Habitat Use by Waterbirds in Narragansett Bay |
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We examined patterns of habitat use by waterbirds (waterfowl, shorebirds, and wading birds) at a series of urban and non-urban marine habitats in Narragansett Bay during 2005-2007....
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VALIDATION OF SIGNATURE POLARLIPID FATTY ACID BIOMARKERS FOR ALKANE-UTILIZING BACTERIA IN SOILS AND SUBSURFACE AQUIFER MATERIALS |
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Extractable cell membrane-derived polarlipid ester-linked fatty acids (PLFA) obtained from aerated soils gassed with methane or propane and from methane-and propane-oxidizing bacte...
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VAPOR PHASE TREATMENT OF PCE IN A SOIL COLUMN BY LAB-SCALE ANAEROBIC BIOVENTING |
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Microbial destruction of highly chlorinated organic compounds must be initiated by anaerobic followed by aerobic dechlorination. In-situ dechlorination of vadose zone soil contamin...
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VARIABILITY IN SOILS AND VEGETATION ASSOCIATED WITH HARVESTER ANT (POGONOMYRMEX RUGOSUS) NESTS ON A CHIHUAHUAN DESERT WATERSHED |
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The effects of harvester ant (Pogonomyrmex rugosus) nests on the density and cover of spring annual plants and on soil characteristics were measured at three locations characterize...
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VIRAL AND BACTERIAL LEVELS RESULTING FROM THE LAND APPLICATION OF DIGESTED SLUDGE |
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Surface and ground waters, sludge, soils and aerosols were sampled at a land reclamation site. The site has received large quantities of anaerobically digested sludge for several y...
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VIRTUS: A MODEL OF VIRUS TRANSPORT IN UNSATURATED SOILS |
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As a result of the recently proposed mandatory groundwater disinfection requirements to inactivate viruses in potable water supplies, there has been increasing interest in virus fa...
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VISUALIZATION AND SIMULATION OF NON-AQUEOUS PHASE LIQUIDS SOLUBILIZATION IN PORE NETWORKS |
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The design of in-situ remediation of contaminated soils is mostly based on a description at the macroscopic scale using a averaged quantities. These cannot address issues at the p...
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VOLATILITY OF MERCURY FROM SOILS AMENDED WITH VARIOUS MERCURY COMPOUNDS |
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A study was conducted to determine the rate of mercury volatilization from soils freshly amended with mercury compounds. Mercuric nitrate, mercuric chloride, mercuric acetate, merc...
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VULNERABILITY OF HEADWATER CATCHMENT RESOURCES TO INCIDENCES OF 210PB EXCESS AND 137CS RADIONUCLIDE FALLOUT |
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Recent identification of elevated excess 210Pb (≤302.6 mBq L-1) and 137Cs (≤ 111.3 mBq L-1) activity in drinking water wells up to 20 m ...
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WASTE RESEARCH STRATEGY |
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The Waste Research Strategy covers research necessary to support both the proper management of solid and hazardous wastes and the effective remediation of contaminated waste sites....
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WASTE RESEARCH STRATEGY (EPA/600/R-98/154) |
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The "Waste Research Strategy" covers research necessary to support both the proper management of solid and hazardous wastes and the effective remediation of contaminated waste site...
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WASTEWATER SOLIDS UTILIZATION ON LAND DEMONSTRATION PROJECT |
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This is a summary report of a four-year field study of the techniques and environmental effects of applying liquid digested municipal sludge at various rates to sandy coastal plain...
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WATER DISPLACEMENT DURING SPARGING UNDER PERCHED WATER-TABLE CONDITIONS |
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The feasibility of using sparging to purposefully displace perched water in silt loam soils was evaluated at a field site in Northwestern Oklahoma. uring sparging, a transient resp...
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WATERSHED AND POINT SOURCE ENRICHMENT AND LAKE TROPHIC STATE INDEX |
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Water in the permeable soils of the upper Pelican River watershed, Minnesota, requires slightly more than a year to move generally out of the phreatic zone into surface channels an...
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WATERSHED CHARACTERIZATION USING LANDSAT THEMATIC MAPPER IMAGERY: BLACKFOOT RIVER, MT |
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This report describes a portion of a large regional project undertaken by the Environmental Protection Agency (EPA) and water quality authorities in the States of Montana, Idaho, a...
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WATERSHED MANAGEMENT AND ARCGIS: THE RELEASE OF AGWA 2.0 |
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Focusing time, energy, and money where it can be best utilized is in the best interest of managers
everywhere. By making tools more widely available that facilitate the iden...
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WETLAND INVENTORY USING REMOTELY SENSED LANDSAT DATA AND GEOGRAPHIC INFORMATION SYSTEMS (GIS) |
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Wetlands perform many functions on the landscape related to water quality and quantity, and provide habitat for myriad organisms. The identification of wetlands can be problematic...
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WETTING STIMULATES ATMOSPHERIC CH4 OXIDATION BY ALPINE SOIL (R823442) |
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Studies were done to assess the effects of soil moisture manipulations on CH4 oxidation in soils from a dry alpine tundra site. When water was added to these soils there...
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WILL SOIL WASHING WORK FOR THE SAND CREEK SUPERFUND SITE? |
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The 1987 Sand Creek Operable Unit 5 Record of Decision (ROD) identified soil washing as the selected remedy to remediate soils contaminated with high levels of organochlorine pesti...
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X-RAY FLUORESCENCE SURVEY OF LEAD CONTAMINATED RESIDENTIAL SOILS IN LEADVILLE, COLORADO: A CASE STUDY |
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Continuing concern over the adverse impacts to human health due to exposure to lead has prompted characterization efforts at numerous sites across the United States. ne of the prim...
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X-RAY MICROSCOPY AND SPECTROSCOPY STUDIES ON METAL BINDING IN BIOSOLIDS |
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Sorption/desorption data from intact and different fractions of biosolids and biosolids-amended soils indicated the importance of Fe and Mn fractions on both sorption and desorptio...
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X-RAY MICROSCOPY AND SPECTROSCOPY STUDIES ON METAL BINDING IN BIOSOLIDS (ABSTRACT) |
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Sorption/desorption data from intact and different fractions of biosolids and biosolids-amended soils indicated the importance of Fe and Mn fractions on both sorption and desorptio...
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ZINC |
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This report summarizes the available information on zinc as it relates to its effects on man and his environment. Zinc is found in most soils, but some areas are deficient in it. M...
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