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A COMPARISON OF LIQUID AND GAS-PHASE PHOTOOXIDATION TREATMENT OF METHYL TERTIARY BUTYL ETHER: SYNTHETIC AND FIELD SAMPLES |
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The feasibility of photo-oxidation treatment of metyl tert-butyl either (MTBE) in water was investigated using two systems, 1) a slurry falling film photo-reactor, and 2) an integr...
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A MASS BALANCE OF SURFACE WATER GENOTOXICITY IN PROVIDENCE RIVER (RHODE ISLAND USA) |
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White and Rasmussen (Mutation Res. 410:223-236) used a mass balance approach to demonstrate that over 85% of the total genotoxic loading to the St. Lawrence River at Montreal is no...
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A METHOD TO MEASURE PROTECTIVE CLOTHING PERMEATION UNDER INTERMITTENT CHEIMCAL CONTACT CONDITIONS |
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A preliminary method was developed to measure chemical permeation under intermittent chemical contact conditions. Protective clothing permeation is presently measured using ASTM Me...
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A NEW HPLC METHOD FOR SEPARATION OF PHYTOPLANKTON PIGMENTS IN NATURAL SAMPLES |
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A new high-performance liquid chromatographic (HPLC) method was developed to analyze, in a single run, most polar and non-polar chlorophylls and carotenoids from marine phytoplankt...
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ACCELERATED EXTRACTION OF ORGANIC POLLUTANTS USING MICROWAVE ENERGY |
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This study is part of an ongoing U.S. Environmental Protection Agency research program, carried out by the National Exposure Research Laboratory, Characterization Research Division...
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ADVANCED OXIDATION PROCESSES (AOPS) FOR DESTRUCTION OF METHYL TERTIARY BUTYL ETHER (MTBE -AN UNREGULATED CONTAMINANT) IN DRINKING WATER |
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Advanced oxidation processes (AOPs) provide a promising treatment option for the destruction of MTBE directly in surface and ground waters. An ongoing study is evaluating the abili...
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ANAEROBIC TREATMENT OF HIGH-STRENGTH INDUSTRIAL WASTES BEARING SEMI-VOLATILES RCRA COMPOUNDS |
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The potential of the anaerobic, expanded-bed, granular activated carbon (GAC) reactor in treating a high-strength waste containing RCRA semivolatile organic compounds was studied. ...
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ANALYTICAL METHODS FOR WATER DISINFECTION BY-PRODUCTS IN FOODS AND BEVERAGES |
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The determination of exposure to drinking water disinfection byproducts (DBPs) requires an understanding of how drinking waters come into contact with the human through multiple pa...
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ANALYTICAL METHODS FOR WATER DISINFECTION BY-PRODUCTS IN FOODS AND BEVERAGES |
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The determination of exposure to drinking water disinfection byproducts (DBPs) requires an understanding of how drinking water comes in contact with humans through multiple pathway...
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ANALYTICAL METHODS FOR WATER DISINFECTION BYPRODUCTS IN FOODS AND BEVERAGES |
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The determination of exposure to drinking water disinfection byproducts (DBPs) requires an understanding of how drinking water comes into contact with human through multiple pathwa...
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ASSESSING THE INTERACTIONS OF ORGANIC COMPOUNDS DURING BIODEGRADATION OF COMPLEX WASTE MIXTURES BY NATURALLY OCCURRING BACTERIAL ASSEMBLAGES |
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Selected organic chemicals were tested to determine the minimum concentrations at which complete inhibition of microbial degradative processes occurred. omplete inhibition did not ...
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ASSESSMENT OF VOC EMISSIONS FROM FIBERGLASS BOAT MANUFACTURING |
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The report presents an assessment of volatile organic compound (VOC) emissions from fiberglass boat manufacturing. escription of the industry structure is presented, including esti...
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ATMOSPHERIC VOLATILE ORGANIC COMPOUND MEASUREMENTS DURING THE 1996 PASO DEL NORTE OZONE STUDY |
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Ambient air VOC samples were collected at surface air quality monitoring sites, near sources of interest, and aloft on the US (El Paso) and Mexican (Ciudad Juarez) side of the bo...
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ATTENUATION OF METHYL TERT-BUTYL ETHER IN WATER USING SUNLIGHT AND A PHOTOCATALYST |
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The use of methyl tert-butyl ether (MTBE) as a gasoline additive has resulted in increasing pollution of ground water. Most of the conventional treatment technologies are inefficie...
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ATTENUATION OF METHYL TERT-BUTYL ETHER IN WATER USING SUNLIGHT AND A PHOTOCATALYST: JOURNAL ARTICLE |
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NRMRL-CIN-1535 Sahle-Demessie*, E., Enriquez*, J., and Gupta, G. Attenuation of Methyl tert-Butyl Ether in Water using Sunlight and a Photocatalyst. Water Environment Research (Vi...
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AVOIDING HYDROLYSIS OF FUEL ETHER OXYGENATES DURING STATIC HEADSPACE ANALYSIS |
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A headspace autosampler, gas chromatograph and ion trap mass spectrometer (headspace GC/MS) were used for trace analysis of fuel oxygenates and related compounds and aromatics in w...
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BENZENE OXIDE PROTEIN ADDUCTS AS BIOMARKERS OF BENZENE EXPOSURE |
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Benzene is known to be hematotoxic and carcinogenic in animals and humans. While metabolism is required for toxicity, the identity of the ultimate carcinogen(s) remains unknown. ...
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BIFUNCTIONAL ALUMINUN: A PERMEABLE BARRIER MATERIAL FOR THE DEGRADATION OF MTBE |
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Bifunctional aluminum is an innovative remedial material for the treatment of gasoline oxygenates in permeable reactive barriers (PRBs). PRBs represent a promising environmental t...
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BIOGENIC VOLATILE ORGANIC COMPOUND EMISSIONS FROM A LOWLAND TROPICAL WET FOREST IN COSTA RICA |
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Twenty common plant species were screened for emissions of biogenic volatile organic compounds (BVOCS) at a lowland tropical wet forest site in Costa Rica. Ten of the species. exam...
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BIOGENIC VOLATILE ORGANIC COMPOUND EMISSIONS FROM DESERT VEGETATION OF THE SOUTHWESTERN U.S. |
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Thirteen common plant species in the Mojave and Sonoran Desert regions of the western United States were tested for emissions of biogenic non-methane volatile organic compounds (BV...
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CAPILLARY COLUMN GC-MS DETERMINATION OF 77 PURGEABLE ORGANIC COMPOUNDS IN TWO SIMULATED LIQUID WASTES |
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The suitability of purge-trap-desorb (PTD) procedures for determination of 84 volatile organic compounds with capillary column gas chromatograph (GC) and mass spectrometry (MS) was...
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CAPILLARY ELECTROPHORETIC BEHAVIOR OF SEVEN SULFONYLUREAS |
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The electrophoretic behavior of bensulfuron Me, sulfometuron Me, nicosulfuron (Accent), chlorimuron Et, thifensulfuron Me (Harmony), metsulfuron Me, and chlorsulfuron was studied u...
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CARCINOGENIC ACTIVITY ASSOCIATED WITH ASPHALTIC AND COAL TAR COATINGS USED IN POTABLE WATER MAINS |
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Carcinogenic response was assessed with 0.2 ml of 4 asphaltic and 3 coal tar based paints applied topically in acetone to the shaved back of female SENCAR mice. Two weeks later a p...
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CARCINOGENIC ACTIVITY ASSOCIATED WITH HALOGENATED ACETONES AND ACRONEINS IN THE MOUSE SKIN ASSAY |
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Several chlorinated acatones have been identified in drinking water and these as well as a number of chlorinated acroleins are produced by chlorination of humic acid solutions. any...
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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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CHARACTERISTICS OF NON-PETROLEUM UNDERGROUND STORAGE TANKS |
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It is generally acknowledged that a small fraction of the total underground storage tank population is used to store chemicals. he detailed characteristics of these tanks, however,...
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CHARACTERISTICS OF PILOT- AND FULL-SCALE HAZARDOUS WASTE INCINERATOR ASH |
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This review encompasses ash characterization data from 16 different hazardous waste incinerators, both pilot- and full-scale, treating a variety of waste streams. Its focus is on 1...
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CHARACTERIZATION OF AMBIENT PM2.5 AEROSOL AT A SOUTHEASTERN US SITE: FOURIER TRANSFORM INFRARED ANALYSIS OR PARTICLE PHASE |
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During a field study in the summer of 2000 in the Research Triangle Park (RTP), aerosol samples were collected using a five stage cascade impactor and subsequently analyzed using...
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CLEANUP OF ENVIRONMENTAL SAMPLE EXTRACTS USING FLORISIL SOLID-PHASE EXTRACTION CARTRIDGES |
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Disposable cartridges containing 1 g of Florisil are investigated for cleanup of extracts obtained from various environmental natrices. lution patterns and recoveries are determine...
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COBALT-59 NUCLEAR MAGNETIC RESONANCE STUDIES OF CHLORO-, BROMO, AND IODO-SUBSTITUTED TRIS(ACETYLACETONATO) COBALT(III) COMPLEXES |
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The cobalt-59 nuclear magnetic resonance spectra and longitudinal relaxation times have been studied for tria(acetylacetonato)cobalt(lll) complexes with chloride, bromide, and iodi...
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COMPARATIVE EMBRYONIC AND LARVAL DEVELOPMENTAL RESPONSES OF THE ESTUARINE GRASS SHRIMP (PALAEMONETES PUGIO) TO THE JUVENILE HORMONE AGONIST FENOXYCARB |
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This work was undertaken in order to develop a sensitive bioassay which indicates adverse effects of estuarine-applied insecticides on nontarget species. Newly developed 'third ge...
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COMPARISON OF GC-FPD AND GC/AED FOR DETERMINATION OF ORGANOPHOSPHATE PESTICIDES IN COMPOSITE DIET SAMPLES |
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In order to assess an individual's total exposure to contaminants in the environment, it is essential that the contribution of dietary exposure be quantified. As a result, USEPA's ...
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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 SUBCUTANEOUS AND ORAL ROUTES OF EXPOSURE FOR EVALUATING ALLERGENICITY OF FOOD EXTRACTS |
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Evaluation of the potential for food allergenicity of any given protein is limited by the lack of an appropriate animal model. In this study we examined the intrinsic allergenicity...
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COMPATIBILITY OF ORGANIC SOLVENTS WITH THE MICROSCREEN PROPHAGE-INDUCTION ASSAY: SOLVENT-MUTAGEN INTERACTIONS |
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The following solvents did not induce prophage lambda in the Escherichia coli WP2 s (Microscreen assay: cetone, benzene, chloroform, ethanol, n-hexane, isopropanol methanol, toluen...
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Correlation of carbon isotope ratios in the cellulose and wood extractives of Douglas-fir |
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Cellulose is usually isolated from the other components of plant material for analysis of carbon stable isotope ratios (δ13C). However, many studies have shown a strong correlation...
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DECHLORINATION OF 2-CHLOROBIPHENYL WITH PD/MG BIMETALLIC PARTICLES |
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PCBs are notorious for their widespread prevalence in aquatic and sedimentary ecosystems, recalcitrance, and carcinogenicity. Dredging and land-filling are still commonly used for ...
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DEGRADATION OF MTBE INTERMEDIATES USING FENTON'S REAGENT |
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In a previous study, the chemical oxidation of MTBE at low concentrations in water using the Fenton's reagent (FR) was investigated. At certain reaction conditions the process ach...
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DETECTION OF OCCUPATIONAL EXPOSURE TO GENOTOXIC AGENTS WITH A URINARY MUTAGEN ASSAY |
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The levels of mutagenic activity in the urine of 198 smoking and non-smoking chemical workers, coke plant workers and controls were measured using a urinary mutagen assay based on ...
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DETERMINATION OF HYDROGEN SULFIDE IN REFINERY FUEL GASES |
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Several widely employed test methods for the iodimetric measurement of hydrogen sulfide in refinery fuel gases are shown to suffer from serious thiol interferences. An absorbing so...
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DETERMINATION OF ORGANOPHOSPHATE PESTICIDES IN COMPOSITE DIET SAMPLES |
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USEPA's National Exposure Research Laboratory conducts research to measure the exposure of individuals to chemical pollutants through the diet, as well as other media. In support ...
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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 PESTICIDES IN COMOSITE DIETS USING LARGE VOLUME PRESSURIZED FLUID EXTRACTION WITH IN-LINE SAMPLE PREPARATION |
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USEPA's National Exposure Research Laboratory conducts research to measure the exposure of individuals to chemical pollutants through the diet, as well as other media. In support ...
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DETERMINATION OF PESTICIDES IN COMPOSITE DIETARY SAMPLES BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY IN THE SELECTED ION MONITORING MODE USING A TEMPERATURE PROGRAMMABLE LARGE VOLUME INJECTOR WITH PRE-SEPARATION COLUMN |
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Use of a temperature-programmable pre-separation column in the gas chromatographic injection port permits determination of a wide range of semi-volatile pesticides including organo...
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DETERMINATION OF PYRETHROID PESTICIDES IN COMPOSITE DIETARY SAMPLES |
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The U.S. Environmental Protection Agency's National Exposure Research Laboratory (NERL) conducts aggregate exposure studies for determining an individual's exposure to a broad rang...
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DETERMINATION OF TCDD IN INDUSTRIAL AND MUNICIPAL WASTEWATERS |
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This program was undertaken in an effort to develop an analytical method for the determination of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in industrial and municipal wastewaters...
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DETERMINATION OF THE ORGANIC MASS TO ORGANIC CARBON RATIO IN IMPROVE SAMPLES. (R831086) |
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The ratio of organic mass (OM) to organic carbon (OC) in PM2.5 aerosols at US national parks in the IMPROVE network was estimated experimentally from solvent extracti...
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DETOXIFICATION RESPONSE IN MEDAKA (ORYZIAS LAPTIPES) EXPOSED TO MX, A DRINKING WATER CARCINOGEN |
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When chlorine is introduced into public drinking water for disinfection, it can react with organic compounds in surface waters to form toxic by-products such as 3-chloro-4-(dichlor...
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DEVELOPMENT OF SEPARATION SYSTEMS FOR POLYNUCLEAR AROMATIC HYDROCARBON ENVIRONMENTAL CONTAMINANTS USING MICELLAR ELECTROKINETIC CHROMATOGRAPHY WITH MOLECULAR MICELLES AND FREE ZONE ELECTROPHORESIS |
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Of four systems available from the literature, based on cyclodextrins, dioctylsulfosuccinate, bile salts, and molecular micelles consisting of oligomers of undecylenic acid, the m...
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DIFFUSION MEASUREMENTS DURING PERVAPORATION THROUGH A ZEOLITE MEMBRANE |
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An isotopic-transient technique was used to directly measure diffusion times of H2O, methanol, ethanol, 2-propanol, and acetone in pure and binary mixture feeds transporting ...
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DISTRIBUTION OF FITC AFTER SUBCUTANEOUS IMPLANTATION OF CONTROLLED RELEASE MATRICES IN CUNNER, TAUTOGOLABRUS ADSPERSUS |
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Peritoneal injection is a major route for chemical introduction into fish for toxicological studies. This procedure, however, causes rapid exposure to toxicants at levels which are...
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DISTRIBUTION OF FITC IMPLANTED SUBCUTANEOUSLY IN CONTROLLED RELEASE MATRICES IN CUNNER (TAUTOGOLABRUS ADSPERSUS) |
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Peritoneal injection is a major route for chemical introduction into fish for toxicological studies. This procedure, however, causes rapid exposure to toxicants at levels which are...
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DOSE RELATED DIFFERENCES IN DNA ADDUCT LEVELS IN RODENT TISSUES FOLLOWING SKIN APPLICATIONS OF COMPLEX MIXTURES FROM AIR POLLUTION SOURCES |
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Dose-related differences in the binding of DNA reactive intermediates for three environmentally important complex particulate extracts and a well studied carcinogen Benzo(a)Pyrene ...
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EFFECT OF LAND TREATMENT ON THE MUTAGENICITY OF MILWAUKEE HARBOR SEDIMENT [POSTER PRESENTATION] |
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Sediment from the Milwaukee harbor is known to be contaminated with PAHs and PCBs. A pilot-scale study was conducted to evaluate the potential of land treatment to detoxify these ...
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EFFECT OF SOLVENT AND EXTRACTION METHODS ON THE BACTERIAL MUTAGENICITY OF SIDESTREAM CIGARETTE SMOKE |
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The mutagenic activity of sidestream cigarette smoke particles was estimated by testing sidestream cigarette smoke particles which had been collected under controlled burning condi...
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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 TEMPERATURE AND SALINITY ON MENIDIA BERYLLINA EMBRYOS EXPOSED TO TERBUFOS |
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Embryos of the inland silverside, Menidia beryllina, were exposed to the organophosphorus pesticide terbufos at nine combinations of temperature (20, 25 and 30 degrees C) and salin...
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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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ELISA AND SOL-GEL BASED IMMUNOAFFINITY PURIFICATION OF THE PYRETHROID BIOALLETHRIN IN FOOD AND ENVIRONMENTAL SAMPLES |
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The peer-reviewed article describes the development of a new sol-gel based immunoaffinity purification procedure and an immunoassay for the pyrethroid bioallethrin. The immunoaffi...
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ENHANCED BIOREMEDIATION OF SOLVENTS IN A FRACTURED ROCK AQUIFER |
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This poster summarizes results of a technology evaluation that was conducted in conjunction with ITT Industries, Earth Tech, Inc., and the US EPA SITE program. The technology eva...
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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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EQUILIBRATION OF POLYCHLORINATED BIPHENYLS AND TOXAPHENE WITH AIR AND WATER |
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The vapor pressure and solubility (as subcooled liquids) and Henry's Law constants (HLCs) for the individual chlorobiphenyl compounds (CBC) in Aroclor 1242, 1254, and 1260, as well...
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EVALUATION OF A PILOT-SCALE ULTRAVIOLET (UV) LIGHT AND OZONE TREATMENT SYSTEM FOR REMOVAL OF MTBE FROM DRINKING WATER SOURCES |
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The U.S. Environmental Protection Agency (EPA) is currently evaluating package plant advanced oxidation process (AOP) systems to treat methyl tertiary butyl ether (MTBE) in drinkin...
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EVALUATION OF CHEMICAL AND BIOLOGICAL METHODS FOR THE IDENTIFICATION OF MUTAGENIC AND CYTOTOXIC HAZARDOUS WASTE SAMPLES |
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To assist in the development of methods for identifying potentially hazardous wastes, the authors have conducted studies on the extraction of toxicants from several solid waste sam...
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EVALUATION OF FOAMS FOR MITIGATING AIR POLLUTION FROM HAZARDOUS SPILLS |
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This program has been conducted to evaluate commercially available water base foams for mitigating the vapors from hazardous chemical spills. Foam systems were evaluated in the lab...
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EVALUATION OF POLYESTER AND METALLIZED-POLYETHYLENE FILMS FOR CHEMICAL PROTECTIVE CLOTHING APPLICATIONS |
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The permeation resistance of thin polyester films and metallized, low-density polyethylene (LDPE) films was evaluated to assess their feasibility for use in chemical protective clo...
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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 THE RESISTANCE OF A CHLORINATED POLYETHYLENE PROTECTIVE GARMENT MATERIAL TO PERMEATION AND DEGRADATION BY LIQUID CHEMICALS |
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The objectives of the project was to investigate existing permeation and degradation resistance data for chlorinated polyethylene (CPE); to develop a laboratory test plan consisten...
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FENTON-DRIVEN CHEMICAL REGENERATION OF MTBE-SPENT GAC |
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Methyl tert-butyl ether (MTBE)-spent granular activated carbon (GAC) was chemically regenerated utilizing the Fenton mechanism. Two successive GAC regeneration cycles were perform...
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FIELD DISPOSAL OF DDT: EFFECTIVENESS OF ACIDIFIED POWDERED ZINC ON REDUCTION OF DDT IN SOIL |
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In order to investigate methods suitable for field disposal of small quantities of excess DDT on farms and orchards, the degradation of DDT buried with various concentrations of po...
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FURTHER DEVELOPMENT OF RODENT WHOLE EMBRYO CULTURE: SOLVENT TOXICITY AND WATER INSOLUBLE COMPOUND DELIVERY SYSTEM |
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In order to study the in vitro embryotoxicity and dysmorphogenesis of water insoluble compounds, solvents or chemical delivery systems of low toxicity and teratogenicity to the dev...
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GAS CHROMATOGRAPHIC MICROMETHOD FOR TRACE DETERMINATIONS OF PHENOLS |
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A gas chromatographic procedure is described for the analysis of a variety of substituted phenols from water samples. The method was designed for situations when the sample size is...
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HEALTH AND ENVIRONMENTAL EFFECTS PROFILE FOR ACETONE CYANOHYDRIN |
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The Health and Environmental Effects Profile for acetone cyanohydrin was prepared by the Office of Health and Environmental Assessment, Environmental Criteria and Assessment Office...
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HEALTH EFFECTS ASSESSMENT FOR ACETONE |
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The document represents a brief, quantitatively oriented scientific summary of health effects data. It was developed by the Environmental Criteria and Assessment Office to assist t...
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HIGH ENERGY ELECTRON INJECTION (E-BEAM) TECHNOLOGY FOR THE EX-SITU TREATMENT OF MTBE-CONTAMINATED GROUNDWATER INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This Innovative Technology Evaluation Report documents the results of a demonstration of the high-energy electron injection (E-Beam) technology in application to groundwater contam...
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HIGH VOLUME INJECTION FOR GCMS ANALYSIS OF PARTICULATE ORGANIC SPECIES IN AMBIENT AIR |
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Detection of organic species in ambient particulate matter typically requires large air sample volumes, frequently achieved by grouping samples into monthly composites. Decreasing...
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HUMAN EPITHELLIAL CELL ACTIVATION SYSTEMS |
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Much effort has been placed on the development of short-term assay systems that use the induction of mutations in bacterial and mammalian cells as the basis for predicting the carc...
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HYDROCARBON AND CARBONYL OZONE PRECURSORS IN MEXICO CITY AMBIENT AIR |
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Urban air pollution is an environmental problem in many cities around the world that has serious immediate and long-term implications to the health of the population and to the p...
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HYDROCARBON SOLVENT RECOVERY IN THE PRESENCE OF RESIN CONTAMINANTS |
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A system was developed to recover acetone from an air stream in which there were suspended epoxy resin particles. This recovery problem is encountered in the manufacture of fiber g...
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HYDROXYL RADICAL AND OZONE INITIATED PHOTOCHEMICAL REACTIONS OF 1,3-BUTADIENE. (R826247) |
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1,3-Butadiene, classified as hazardous in the 1990 Clean Air Act Amendments, is an important ambient air pollutant. Understanding its atmospheric transformation is useful for it...
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IN SITU MEASUREMENTS OF C2-C10 VOLATILE ORGANIC COMPOUNDS ABOVE A SIERRA NEVADA PONDEROSA PINE PLANTATION |
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A fully automated GC-FID system was designed and built to measure ambient concentrations of C2-C10 volatile organic compounds, including many oxygenated compounds, without using li...
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IN VITRO DERMAL ABSORPTION OF FLAME RETARDANT CHEMICALS |
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IN VITRO DERMAL ABSORPTION OF FLAME RETARDANT CHEMICALS. M F Hughes1, B C Edwards1, C T Mitchell1, and B Bhooshan2. 1US EPA, ORD, NHEERL, RTP, NC; 2US CPSC, LSC, Rockville, MD.
...
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IN VITRO DERMAL ABSORPTION OF FLAME RETARDANT CHEMICALS |
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ABSTRACT
The use of flame retardant chemicals in furniture fabric could pose a potential health risk to consumers from dermal absorption of these compounds. The objective o...
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IN VITRO DERMAL ABSORPTION OF PYRETHROID PESTICIDES IN RAT AND HUMAN SKIN |
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Pyrethriods are a class of neurotoxic pesticides and their use may lead to dermal exposure. This study examined the in vitro dermal absorption of pyrethroids in rat and human skin...
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IN VIVO DERMAL ABSORPTION OF PYRETHROID PESTICIDES IN THE RAT |
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The potential for exposure to pyrethroid pesticides has risen recently because of their increased agricultural and residential use. The objective of this study was to examine the ...
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INDOOR AIR POLLUTANTS FROM HOUSEHOLD PRODUCT SOURCES |
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A GC/MS data base obtained during the analysis of 1,159 household products for six common chlorocarbon solvents has been reanalyzed for the presence and concentration of 25 additio...
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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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INTERACTION OF AQUEOUS SOLUTIONS OF CHLORINE WITH MALIC ACID, TARTARIC ACID, AND VARIOUS FRUIT JUICES, A SOURCE OF MUTAGENS |
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The interactions of aqueous solutions of chlorine with some fruit acids (citric acid, DL-malic acid, and L-tartaric acid) at different pH values were studied. iethyl ether extracti...
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INVESTIGATION OF BENZENE OXIDE IN BONE MARROW AND OTHER TISSUES OF F344 RATS FOLLOWING METABOLISM OF BENZENE IN VITRO AND IN VIVO |
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This study examines the initial activation of benzene, exploring key aspects of its metabolism by measurement of benzene oxide (BO) and BO-protein adducts in vitro and in vivo. T...
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IRIS TOXICOLOGICAL REVIEW AND SUMMARY DOCUMENTS FOR ACETONE (EXTERNAL REVIEW DRAFT) |
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Acetone is produced endogenously in the human body, although usually under conditions of stress such as starvation or high levels of exertion. Acetone is also produced syntheticall...
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ISOLATION OF A SOLUBLE CADMIUM-BINDING PROTEIN FROM PULMONARY MACROPHAGES |
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A soluble cadmium-binding protein, with properties similar to metallothionein, has been isolated from rabbit alveolar macrophages. The macrophages were cultured in Medium 199 with ...
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KINETICS OF CHEMICAL WEATHERING IN B-HORIZON SPODOSOL FRACTION |
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Studies on a B horizon soil from Maine have been conducted to etermine the weathering rate dependence on hydrogen ion concentration in soil solution. Effects of soil concentration ...
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LIQUID-SOLID DISK EXTRACTION FOLLOWED BY SFE AND GC-ION-TRAP MS FOR THE DETERMINATION OF TRACE ORGANIC POLLUTANTS IN WATER |
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The U.S. Environmental Protection Agency's (EPA) Industrial Toxic 33-50 Program, which is part of the Pollution Prevention Act of 1990, outlines a plan to reduce the use of some co...
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MATURATIONAL CHANGES IN DERMAL ABSORPTION OF 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (TCDD) IN FISCHER 344 RATS |
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An earlier study indicated that dermal absorption of a 40 nmol dose of TCDD decreased with aging in rats, suggesting that the potential for systemic exposure following dermal conta...
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MEASUREMENT OF MECURY IN FISH SCALES AS AN ASSESSMENT METHOD FOR PREDICTING MUSCLE TISSUE MERCURY CNOCENTRATIONS IN LARGEMOUTH BASS |
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The relationship between total mercury (Hg) concentration in fish scales and in tissues of largemouth bass (Micropterus salmoides) from 20 freshwater sites was developed and evalua...
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MEASUREMENT OF VOLATILE CHEMICAL EMISSIONS FROM WASTEWATER BASINS |
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The objective of this project was to measure the rate at which selected volatile organic carbon (VOC) compounds are being emitted to air from waste-water treatment basins of the pu...
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MEASUREMENT OF VOLATILE ORGANIC COMPOUNDS IN EXHALED BREATH AS COLLECTED IN EVACUATED ELECTROPOLISHED CANISTERS |
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A set of three complementary analytical methods were developed specifically for exhaled breath as collected in evacuated stainless steel canisters using gas chromatography - mass s...
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METHOD DEVELOPMENT AND FIELD MEASUREMENTS FOR POLAR VOCS IN AMBIENT AIR |
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This paper reports on a program which had two main objectives: 1) to develop an analytical method for polar volatile organic compounds (PVOCS) in ambient ail using sample collectio...
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METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED HYDROCARBONS IN MUNICIPAL SLUDGE |
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The method provides a procedure for analysis of pesticides and PCB's in municipal sludge. The method includes extraction by a centrifuge technique of the chlorinated compounds from...
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MICROBIAL DEGRADATION KINETICS OF TOXIC ORGANIC CHEMICALS OVER A WIDE RANGE OF CONCENTRATIONS IN NATURAL AQUATIC SYSTEMS |
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The degradation kinetics for several toxic organic compounds (p-resol, phenol, p-chlorophenol, acetone, and methanol) exposed to natural aquatic microbial assemblages were examined...
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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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MOLECULAR COMPOSITION OF ORGANICS IN PM 2.5 AT THE NEW YORK CITY SUPERSITE WINTER 2004 |
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Organic compounds in PM2.5 were studied at the New York City Supersite at Queens College, NYC as part of the NYC Supersite Winter 2004 Intensive from January 15 to February 5, 2004...
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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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MTBE OXIDATION BY BIFUNCTIONAL ALUMINUM |
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Bifunctional aluminum, prepared by sulfating zero-valent aluminum with sulfuric acid, has a dual functionality of simultaneously decomposing both reductively- and oxidatively-degra...
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MTBE OXIDATION BY BIFUNCTIONAL ALUMINUN |
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Bifunctional aluminum, prepared by sulfating zero-valent aluminum with sulfuric acid, is an innovative extension of zero-valent metal (ZVM) technology for ground water remediation...
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MTBE OXIDATION BYPRODUCTS FROM THE TREATMENT OF SURFACE WATERS BY OZONATION AND UV-OZONATION |
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In recent years, there has been considerable concern over the release of methyl tert-butyl ether (MTBE), as gasoline additive, into the aquifers used as potable water sour...
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NASOPHARYNGEAL CONCENTRATIONS IN THE HUMAN VOLUNTEER BREATHING ACETONE |
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In an effort to examine the absorption of a common chemical into the nasopharyngeal region in humans, a 57 year old male volunteer inhaled uniformly labeled 13C-acetone at 1.4 pp...
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NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF VOLATILE ORGANIC COMPOUNDS FROM CHARCOAL BADGES BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY (RTI/ACS-AP-209-112) |
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This protocol provides guidelines for determining volatile organic hydrocarbons (VOCs) in air samples by gas chromatography/mass spectrometry (GC/MS). This method is for the analys...
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NOVEL ASSAY TO ASSESS CYP-2E1-LIKE ACTIVITY IN THE JAPANESE MEDAKA (ORYZIAS LATIPES). |
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Liver microsomes and S-9 fraction of Japanese medaka (Oryzias latipes) metabolized the CYP2E1 specific substrate, p-nitrophenol (PNP), to a single hydroxylated product, 4-nitrocate...
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NOVEL EMBEDDED CERAMIC ELECTRODE SYSTEM TO ACTIVATE NANOSTRUCTURED TITANIUM DIOXIDE FOR DEGRADATION OF MTBE |
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A novel reactor combining a flame-deposited nanostructured titanium dioxide film and a set of embedded ceramic electrodes was designed, developed and tested for degradation of meth...
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NOVEL POLYMERIC MEMBRANE FOR DEHYDRATION OF ORGANIC SOLVENTS |
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Pervaporation has emerged as an economically viable alternative technology for dehydration of organic solvents, removal of organic compounds and organic/organic separations. Devel...
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OLFACTORY TOXICITY RESULTING FROM DERMAL APPLICATION OF 2,6-DICHLOROBENZONITRILE (DICHLOBENIL) IN THE C57B1 MOUSE |
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2,6-Dichlorobenzonitrile (dichlobenil) is an herbicide which has previously been reported by other investigators to be toxic to the olfactory mucosa following intraperitoneal admin...
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OXYGENATED ORGANIC COMPOUND CONCENTRATIONS NEAR A ROADWAY IN LITHUANIA, SSR |
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During the period June 1 to June 9, 1989, aldehyde and other oxygenated organic compound concentrations were examined at sites 3, 10, and 80 meters northeast of the Vilnius-Kaunas ...
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P-NITROPHENOL AND GLUTATHIONE RESPONSE IN MEDAKA (ORYZIAS LATIPES) EXPOSED TO MX, A DRINKING WATER CARCINOGEN. |
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When chlorine is introduced into public drinking water for disinfection, it can react with organic compounds in surface waters to form toxic by-products such as 3-chloro-4- (dic...
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P-NITROPHENOL METABOLISM BY JAPANESE MEDAKA (ORYZIAS LATIPES) LIVER MICROSOMES AND S-9 FRACTION: ADDITIONAL EVIDENCE FOR THE EXISTENCE OF A CYP2E1-LIKE ISOFORM IN TELEOSTS |
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Liver microsomes and S-9 fraction of Japanese medaka (Oryzias latipes) metabolized the CYP2E1 specific substrate, p-nitrophenol (PNP), to a single hydroxylated product, 4-nitrocate...
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PERMEABILITY OF POLYMERIC MEMBRANE LINING MATERIALS |
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Permeabilities to three gases (carbon dioxide, methane, and nitrogen), water vapor, and five solvents (methanol, acetone, cyclohexane, xylene, and chloroform) are reported for a br...
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PEROXYACETYL NITRATE (PAN) IN THE UNPOLLUTED ATMOSPHERE: AN IMPORTANT RESERVOIR FOR NITROGEN OXIDES |
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Based on the measured atmospheric distributions of ethane and propane (at midlatitudes in the northern hemisphere) and a simplified mechanism for their oxidation, it is predicted t...
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PHOTOCATALYTIC OXIDATION OF METHYL-TERT-BUTYL ETHER FOR DRINKING WATER TREATMENT |
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The photo-oxidation of methyl tert-butyl ether (MTBE) in water was investigated to determine the feasibility of using photocatalysis for the treatment of MTBE-contaminated drinking...
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PHYSICAL AND CHEMICAL PARAMETERS OF SEDIMENT EXTRACTION AND FRACTIONATION THAT INFLUENCE TOXICITY AS EVALUATED BY MICROTOX |
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Several physical and chemical parameters of sediment extraction and fractionation of organic compounds that influence bioassay results were evaluated. ach parameter was evaluated w...
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POLYURETHANE FOAM AS TRAPPING AGENT FOR AIRBORNE PESTICIDES: ANALYTICAL METHOD DEVELOPMENT |
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A method for determining levels of organochlorine, organophosphorus, and N-methyl carbamate insecticides in air was developed using 4.4 cm-diameter plugs of polyurethane foam as tr...
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PREFERENTIAL PARTITIONING OF PAHS AND PCBS TO COAL FLY ASH |
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It has long been known that fly ash has a significant capacity for the adsorption of several classes of anthropogenic pollutants, including toxic metals, nutrients and organic comp...
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PRELIMINARY FINDINGS ON THE ASSESSMENT OF POTENTIAL CAR-RELATED OCCUPATIONAL PM AND AIR TOXIC EXPOSURE TO PATROL TROOPERS (COPP STUDY) |
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In-vehicle, roadside and community-based measurements of particulate matter (PM) and select air toxics were measured as part of a study involving patrol cars from the North Carolin...
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PULMONARY HYPERRESPONSIVENESS FOLLOWING DERMAL EXPOSURE TO SELECTED DIISOCYANATES |
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PULMONARY HYPERRESPONSIVENESS FOLLOWING DERMAL EXPOSURE TO SELECTED DIISOCYANATES
M.J.K. Selgrade, E.H. Boykin, N.H. Coates, D.L. Doerfler, S.H. Gavett
Experimental Toxic...
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QUALITY ASSURANCE STUDY OF MARINE LIPID CLASS DETERMINATION USING CHROMAROD/IATROSCAN( REG. TRADEMARK) THIN-LAYER CHROMATOGRAPHY-FLAME IONIZATION DETECTOR |
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An Iatroscan thin-layer chromatorgraphy-flame ionization detector has been utilized to quantify lipid classes in marine samples. This method was evaluated relative to established q...
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QUANTITATIVE SEPARATION OF ASBESTOS IN ENVIRONMENTAL SAMPLES |
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Evaluations were made of a novel approach for separating chrysotile asbestos from other particulate matter to improve the application and detection limit of a broad beam x-ray diff...
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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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RADIAL PATTERNS OF CARBON ISOTOPES IN THE XYLEM EXTRACTIVES AND CELLULOSE OF DOUGLAS-FIR |
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Heartwood extractives (nonstructural wood components) are believed to be formed from a combination of compounds present in the adjacent sapwood and materials imported from the phlo...
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RECOMBINANT RAT CYT19, AN ARSENIC METHYLTRANSFERASE, EFFICIENTLY GENERATES TRIMETHYLARSINE OXIDE IN THE ABSENCE OF GLUTATHIONE |
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Chronic exposure to inorganic arsenic (iAs), a toxic metalloid sometimes present in drinking water, is associated with increased prevalences of various cancers and other disorders....
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REDUCTIVE ACTIVATION OF DIOXYGEN FOR DEGRADATION OF METHYL TERT-BUTYL ETHER BY BIFUNCTION |
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Bifunctional aluminum is prepared by sulfating aluminum metal with sulfuric acid. The use of bifunctional aluminum to degrade methyl tert-butyl ether (MTBE) in the presence of dio...
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REDUCTIVE DEGRADATION OF DIELDRIN AND ENDRIN IN THE FIELD USING ACIDIFIED ZINC |
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The reductive dechlorination of dieldrin and endrin was investigated as a possible procedure for field disposal of small quantities of these pesticides. The objective was to conver...
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RESULTS OF A METHOD VERIFICATION STUDY FOR ANALYSES OF PCP IN SOIL |
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As a prelude to a field demonstration of the fungal treatment technology by the SITE Program, a field treatability study was performed to select optimal fungal species and loading ...
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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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SCREENING BIOAVAILABLE HYDROPHOBIC TOXICANTS IN SURFACE WATERS WITH SEMIPERMEABLE MEMBRANE DEVICES: ROLE OF INHERENT OLEIC ACID IN TOXICITY EVALUATIONS |
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Semipermeable membrane devices (SPMDs) were deployed for 4 weeks in two rivers in Lithuania, The SPMD dialysates were tested in the Microtox assay and, surprisingly, the sample fro...
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SEASONAL VARIABILTIY LIPIDS, LIPID CLASSES AND PCBS IN INDIGENOUS POPULATIONS OF RIBBED MUSSELS, MODIOLUS DEMISSUS |
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Two indigenous ribbed mussel (Modiolus demissus) populations were sampled approximately every four weeks during 1997 to investigate the seasonal variability of total lipids, lipid ...
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SELECTION OF A SUITABLE EXTRACTION METHOD FOR WOODSMOKE IMPACTED AIR PARTICLES |
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Extraction methods were evaluated for recovery of mutagenic activity from woodsmoke-impacted air particles. Soxhlet and sonication techniques were utilized with a variety of solven...
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SIMPLE METHOD FOR THE EXTRACTION OF PHOTOPIGMENTS AND MYCOSPORINE-LIKE AMINO ACIDS (MAAS) FROM SYMBIODINIUM SPP. |
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Numerous extraction methods have been developed and used in the quantitation of both photopigments and mycosporine amino acids (MAAs) found in Symbiodinium sp. and zooanthellate me...
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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; MULTI-VENDOR BIOREMEDIATION DEMONSTRATION PROJECT: ENVIRONMENTAL LABORATORIES/SBP TECHNOLOGIES' UVB VACUUM VAPORIZATION WELL PROCESS |
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This technology capsule summarizes the findings of an evaluation of the Unterdruck-Verdampfer-Brunnen (UVB) technology developed by IEG Technologies (IEG) and licensed in the easte...
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SOLUBILITY OF ORGANIC BIOCIDES IN SUPERCRITICAL CO2 AND CO2+ COSOLVENT MIXTURES |
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Solubilities of four organic biocides in supercritical carbon dioxide (Sc-CO2) were measured using a dynamic flowr apparatus over a pressure range of 10 to 30 MPa and temperature o...
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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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SOURCE ASSESSMENT: ACRYLIC ACID MANUFACTURE; STATE-OF-THE-ART |
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This report summarizes data on air emissions from the production of acrylic acid. Hydrocarbons, carbon monoxide, and nitrogen oxide are emitted from various operations. Hydrocarbon...
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SOURCE ASSESSMENT: MANUFACTURE OF ACETONE AND PHENOL FROM CUMENE |
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The report describes a study of atmospheric emissions resulting from the manufacture of acetone and phenol from cumene. The air emissions from such manufacture consist only of hydr...
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SOURCE ASSESSMENT: RECLAIMING OF WASTE SOLVENTS, STATE OF THE ART |
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This document reviews the state of the art of air emissions from the reclaiming of waste solvents. The composition, quantity, and rate of emissions are described. Waste solvents ar...
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STABILITY OF PARTS-PER-BILLION HAZARDOUS ORGANIC CYLINDER GASES AND PERFORMANCE AUDIT RESULTS OF SOURCE TEST AND AMBIENT AIR MEASUREMENT SYSTEMS. STATUS REPORT 2 |
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A repository of 22 gaseous organic compounds at parts-per-billion (ppb) levels in compressed gas cylinders has been established by the U.S. Environmental Protection Agency (EPA). T...
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STABILITY OF PPB HAZARDOUS ORGANIC CYLINDER GASES AND PERFORMANCE AUDIT RESULTS OF SOURCE TEST AND AMBIENT AIR MEASUREMENT SYSTEMS--STATUS REPORT #5 |
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An evaluation of 29 gaseous organic compounds at PPB levels incompressed gas cylinders was conducted by the U.S. Environmental Protection Agency (EPA). Primary objectives of this o...
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STUDIES ON THE POTENT BACTERIAL MUTAGEN, 3-CHLORO-4-(DICHLOROMETHYL)-5-HYDROXY-2(5'H')-FURANONE: AQUEOUS STABILITY, XAD RECOVERY AND ANALYTICAL DETERMINATION IN DRINKING WATER AND IN CHLORINATED HUMIC ACID SOLUTIONS |
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3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) was detected by gas chromatography/mass spectrometry in drinking water samples from three locations in the United States, ...
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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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THE USE OF EMBRYOS OF PALAEMONETES PUGIO IN EVALUATING THE DEVELOPMENTAL TOXICITY OF COMPOUNDS |
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The grass shrimp, Palaemonetes pugio, is a common, well distributed species along the eastern coast of America that is an important part of the food web. The embryos of P. pugio ha...
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TISSUE DISTRIBUTION AND HISTOLOGY OF FITC AND FITC-17B-ESTRADIOL IN CUNNER (TAUTOGOLABRUS ADSPERSUS) AFTER SUBCUTANEOUS IMPLANTATION IN A CONTROL RELEASE MATRIX |
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Peritoneal injection is a major route for chemical introduction into fish for toxicological studies. This procedure, however, causes rapid exposure to toxicants. Long-term studies ...
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TOLUENE DOSE-EFFECT META ANALYSIS AND IMPORTANCE OF EFFECTS |
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TOLUENE DOSE-EFFECT META ANALYSES AND IMPORTANCE OF EFFECTS
Benignus, V.A., Research Psychologist, ORD, NHEERL, Human Studies Division,
919-966-6242, benignus.vernon@epa.g...
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TREATMENT OF METHYL TERT-BUTYL ETHER CONTAMINATED WATER USING PHOTOCATALYSIS |
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The feasibility of photo-oxidation treatment of methyl tert-butyl ether (MTBE) in water was investigated in three ways, 1) using a slurry falling film photo-reactor, 2) a batch sol...
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TREATMENT OF MTBE USING FENTON'S REAGENT |
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This paper addresses the removal of MTBE from water, using Fenton's Reagent. Although complete mineralization of MTBE by Fenton's Reagent was not achieved, greater than 99% destruc...
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TREATMENT OF MTBE-CONTAMINATED WATERS WITH FENTON'S REAGENT |
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Methyl tertiary-butyl ether (MTBE) has been commonly used as a fuel additive because of its many favorable properties that allow it to improve fuel combustion and reduce resultin...
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TREATMENT OF SEMIVOLATILE COMPOUNDS IN HIGH STRENGTH WASTES USING AN ANAEROBIC EXPANDED-BED GAC REACTOR |
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The potential of the anaerobic, expanded-bed, granular activated carbon (GAC) reactor in treating a high strength waste containing RCRA semivolatile organic compounds (VOCS) was st...
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TREATMENT OF VOCS IN HIGH STRENGTH WASTES USING AN ANAEROBIC EXPANDED-BED GAC REACTOR |
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The potential of the expanded-bed granular activated carbon (GAC) anaerobic reactor in treating a high strength waste containing RCRA volatile organic compounds (VOC's) was studied...
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Treatment of semivolatile compounds in high strength wastes using an anaerobic expanded-bed GAC reactor |
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The potential of the anaerobic, expanded bed granular activated carbon (GAC) reactor in treating a high strength waste containing RCRA semivolatile organic compounds (VOCs) was stu...
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UPDATED HEALTH EFFECTS ASSESSMENT FOR ACETONE |
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This report summarizes and evaluates information relevant to a preliminary interim assessment of adverse health effects associated with specific chemicals or compounds. The Office ...
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VIBRATING PERVAPORATION MODULES: EFFECT OF MODULE DESIGN ON PERFORMANCE |
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A third commercial-scale vibrating pervaporation membrane module was fabricated and evaluated for the separation of volatile organic compounds (VOCs) from aqueous solutions. Exper...
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VOLATILIZATION RATES FROM WATER TO INDOOR AIR PHASE II |
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Contaminated water can lead to volatilization of chemicals to residential indoor air. Previous research has focused on only one source (shower stalls) and has been limited to chemi...
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