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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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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 BIOPSY PROCEDURE FOR DETERMINING FILET AND PREDICTING WHOLE-FISH MERCURY CONCENTRATION |
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Although mercury contamination of fish is a widespread phenomenon, its regional evaluation is hindered by the reluctance of permitting agencies to grant collection permits, securin...
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A BIOPSY PROCEDURE FOR DETERMINING TOTAL HG CONCENTRATION IN FISH FILLET AND PREDICTIG WHOLE FISH MERCURY CONCENTRATION |
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abstract for meeting presentation...
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A BIOPSY PROCEDURE FOR DETERMINING TOTAL HG CONCENTRATION IN FISH FILLET AND PREDICTING WHOLE FISH MERCURY CONCENTRATION |
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abstract for presentation...
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A COMAPRISON OF MERCURY IN MINK AND FISHER IN RHODE ISLAND |
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Comparison of total mercury concentrations and nitrogen and carbon stable isotope values in muscle tissue and stomach contents of mink (Mustela vison) and fisher (Martes pennanti) ...
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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 COMPARISON OF MERCURY ACCUMULATION IN MINK AND FISHER |
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presentation at scientific meeting...
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A COMPUTATIONAL AND EXPERIMENTAL STUDY OF MERCURY SPECIATION AS FACILITATED BY THE DEACON PROCESS |
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The paper gives results of a computational and experimental study of mercury (Hg) speciation as facilitated by the Deacon process. Fly ashes that contain trace cupric or ferric oxi...
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A CRITICAL ASSESSMENT OF ELEMENTAL MERCURY AIR/WATER EXCHANGE PARTNERS |
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Although evasion of elemental mercury from aquatic systems can significantly deplete net mercury accumulation resulting from atmospheric deposition, the current ability to model el...
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A CRITICAL EVALUATION OF TANGENTIAL-FLOW ULTRAFILTRATION FOR TRACE METAL STUDIES IN FRESHWATER SYSTEMS. 2. TOTAL MERCURY AND METHYLMERCURY. (R827629) |
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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 MECHANISTIC MODEL FOR MERCURY CAPTURE WITH IN-SITU GENERATED TITANIA PARTICLES: ROLE OF WATER VAPOR |
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A mechanistic model to predict the capture of gas phase mercury species using in-situ generated titania nanosize particles activated by UV irradiation is developed. The model is a...
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A MODELLING FRAMEWORK FOR MERCURY CYCLING IN LAKE MICHIGAN |
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A time dependent mercury model was developed to describe mercury cycling in Lake Michigan. The model addresses dynamic relationships between net mercury loadings and the resulting ...
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A MODELLING FRAMEWORK FOR MERCURY CYCLING IN LAKE MICHIGAN |
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A time-dependent mercury model was developed to describe mercury cycling in Lake Michigan. The model addresses dynamic relationships between net mercury loadings and the resulting ...
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A PROBABILISTIC SURVEY OF FISH TISSUE CONTAMINATION FROM THE CONTINENTAL SHELF OF THE US WEST COAST |
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A probabilistic survey of environmental condition of the continental shelf of the US West Coast was conducted in 2003 by the US EPA National Coastal Assessment (NCA), with collabor...
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A REVIEW OF BIOACCUMULATION MODELING APPROACHES FOR PERSISTENT ORGANIC POLLUTANTS |
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Persistent organic pollutants and mercury are likely to bioaccumulate in biological components of the environment, including fish and wildlife. The complex and long-term dynamics i...
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A SIMPLE METHOD FOR EVALUATING DATA FROM AN INTERLABORATORY STUDY |
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Large-scale laboratory-and method-performance studies involving more than about 30 laboratories may be evaluated by calculating the HORRAT ratio for each test sample (HORRAT=[exper...
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A STUDY OF GAS-PHASE MERCURY SPECIATION USING DETAILED CHEMICAL KINETICS |
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Mercury (Hg) speciation in combustion-generated flue gas is modeled using a detailed chemical mechanism consisting of 60 reactions and 21 species. This speciation model accounts fo...
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A SYNTHESIS OF PROGRESS AND UNCERTAINTIES IN ATTRIBUTING THE SOURCES OF MERCURY IN DEPOSITION |
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A panel of international experts was convened in Madison, Wisconsin, in 2005 as part of the 8th International Conference on Mercury as a Global Pollutant. Our charge was to address...
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A Spotlight on EPA: Texas Environmental Health Association Annual Educational Conference |
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A presentation on Recreational Waters and BEACH Act, Near Roadway Pollution, Greenhouse Gases, Energy and Biofuels, Nanotechnology, Environmental Technology and Green Infrastructur...
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A TEMPERATURE RESPONSIVE BIOPOLYMER FOR MERCURY REMEDIATION. (R829606) |
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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 WASHABILITY AND ANALYTICAL EVALUATION OF POTENTIAL POLLUTION FROM TRACE ELEMENTS IN COAL |
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The report gives results of a washability study showing the trace element contents of various specific gravity fractions for ten coal samples collected from four coal producing reg...
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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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ACCLIMATION OF AQUATIC MICROBIAL COMMUNITIES TO HG(II) AND CH3HG+ IN POLLUTED FRESHWATER POND |
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The relationship of mercury resistance to the concentration and chemical speciation of mercurial compounds was evaluated for microbial communities of mercury-polluted and control w...
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ACCUMULATION OF ATMOSPHERIC MERCURY IN FOREST FOLIAGE. (R827622E02) |
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We used unique mesocosms to examine the role that plants play in accumulating and transforming atmospheric Hg. Several stands of quaking aspen were grown in large gas-exchange c...
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ACCUMULATION OF PCBS AND MERCURY IN LITTORAL FISH COMMUNITIES AT SHALLOW FRESHWATER SITES |
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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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ACCUMULATION OF PCBS AND MERCURY IN LITTORAL FISH FROM SHALLOW FRESHWATER SITE |
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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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ACIDIFICATION EFFECTS ON MACROINVERTEBRATES AND FATHEAD MINNOWS ('PIMEPHALES PROMELAS') IN OUTDOOR EXPERIMENTAL CHANNELS |
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Three outdoor experimental channels at the U.S. EPA Monticello (Minnesota) Ecological Research Station were employed to assess in the field acidification effects on macroinvertebra...
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ACTIVITIES TO CONTAIN MERCURY POLLUTION FROM ENTERING THE RIVER IRTYSH IN PAVLODAR, KAZAKHSTAN |
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This paper describes a research and implementation program to cost effectively contain mercury pollution from a former chlor-alkali plant at Pavlodar, Kazakhstan. It has been estim...
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ACUTE AND CHRONIC EFFECTS OF HEAVY METALS AND CYANIDE ON 'MYSIDOPSIS BAHIA' (CRUSTACEA:MYSIDACEA) |
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Acute and whole life-cycle toxicity tests were conducted with the estuarine mysid shrimp, Mysidopsis bahia, exposed to cyanide and selected heavy metals. Acute toxicity values (96h...
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ACUTE AND CHRONIC EFFECTS OF WATER QUALITY CRITERIA BASED METAL MIXTURES ON THREE AQUATIC SPECIES |
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Acute and chronic toxicity tests were conducted to determine the effects of metals combined as mixtures at proposed water quality criteria concentrations and at multiples of the LC...
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ACUTE TOXICITIES OF CD2+, CR+6, HG2+, NI2+, AND ZN2+ TO ESTUARINE MACROFAUNA |
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Static acute toxicity bioassays were conducted at 20 C and 20 o/oo salinity with CdCl2-2 and one half H2O, K2CrO4, HgCl2, NiCl2-6H2O, and ZnCl2 using adults of starfish, Asterias f...
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ADAPTATION OF AQUATIC MICROBIAL COMMUNITIES TO POLLUTANT STRESS |
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Adaptation to biodegradation of p-nitrophenol and to volatilization of Hg2+ are examples of the role the process plays in removal of environmental pollutants and in maintaining act...
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ADSORPTION AND DESORPTION OF MERCURY ON SORBENTS AT ELEVATED TEMPERATURES. (R822721C697) |
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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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ADSORPTION AND DESORPTION OF MERCURY ON SORBENTS AT ELEVATED TEMPERATURES. (R826694C697) |
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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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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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ADVANCES IN DIETARY EXPOSURE RESEARCH AT THE UNITED STATES |
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The United States Environmental Protection Agency-National Exposure Research Laboratory's (USEPA-NERL)dietary exposure research program investigates the role of diet, including dri...
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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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AIR POLLUTION CONTROL TECHNOLOGIES |
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This is a chapter for John Wiley & Son's Mechanical Engineers' Handbook, and covers issues involving air pollution control. Various technologies for controlling sulfur oxides is co...
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AIR QUALITY CONFERENCE: STATUS OF RESEARCH ON MERCURY. (R827649) |
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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 CONTAMINANTS IN WESTERN NORTH AMERICAN NATIONAL PARKS--WHAT WE KNOW AND WANT TO LEARN |
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The National Park Service initiated the Western Airborne Contaminants Assessment Project (WACAP) in 2002 to determine if airborne contaminants from regional or distant sources have...
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AIRBORNE MERCURY DEPOSITION AND WATERSHED CHARACTERISTICS IN RELATION TO MERCURY CONCENTRATIONS IN WATER, SEDIMENTS, PLANKTON, AND FISH OF EIGHTY NORTHERN MINNESOTA LAKES |
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In light of increasing fish consumption advisories in several states, a comprehensive multimedia database was created to answer a variety of questions. Mercury concentrations in pr...
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AIRBORNE MERCURY IN PRECIPITATION IN THE LAKE SUPERIOR REGION |
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Mercury was measured in accumulated snow (March 1982) sampled from around Lake Superior and in rainfall from Duluth, Minnesota (June-September 1982 and March-November 1983), Forbes...
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ALTERED LEVELS OF APOPTOTIC AND NEUROTROPHIC FACTOR MRNA IN DEVELOPING RAT BRAIN FOLLOWING EXPOSURE TO MERCURY VAPOR OR LEAD |
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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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AMERICAN-SOVIET SYMPOSIUM ON CHEMICAL POLLUTION OF THE MARINE ENVIRONMENT (1ST) HELD AT ODESSA, USSR ON MAY 24-28, 1977 |
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This symposium, organized under a U.S.-U.S.S.R. Environmental Agreement (Project 02.06-21), focuses on the impact of chemical pollution on the world's oceans. Soviet and American s...
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AN ANALYTICAL METHOD FOR THE ANALYSIS OF METHYL MERCURY IN TISSUE |
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This method is an adaptation of one developed by Cai and Jones at Florida International University. It includes an acidic KBr/CuSO4 isolation and methylene chloride extraction with...
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AN APPROACH TO A UNIFIED PROCESS-BASED REGIONAL EMISSION FLUX MODELING PLATFORM |
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The trend towards episodic modeling of environmentally-dependent emissions is increasing, with models available or under development for dust, ammonia, biogenic volatile organic co...
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AN APPROACH TO ASSESS RISKS TO WILDLIFE POPULATIONS FROM MERCURY AND OTHER STRESSORS |
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Platform presentation at a scientific meeting...
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AN APPROACH TO PREDICT RISKS TO WILDLIFE POPULATIONS FROM MERCURY AND OTHER STRESSORS |
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The U.S. Environmental Protection Agency's National Health and Environmental Effects Research Laboratory (NHEERL) is developing tools for predicting risks of multiple stressors to ...
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AN ASSESSMENT OF FISH TISSUE CONTAMINANTS IN SMALL COMPARED TO LARGE WEST COAST ESTUARIES |
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Residues of metals, PCBs, and pesticides were measured in whole bodies of fish from small coastal estuaries in Washington, Oregon and California as well as Puget Sound, Columbia an...
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AN ASSESSMENT OF MERCURY EMISSIONS FROM FOSSIL FUELED POWER PLANTS |
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The study has found no evidence of a health or environmental problem as a result of emissions of mercury from power plants. This conclusion has led to the recommendation that a spe...
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AN ASSESSMENT OF MERCURY-SPECIES-DEPENDENT BINDING WITH NATURAL ORGANIC CARBON |
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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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AN ASSESSMENT OF THERMODYNAMIC REACTION CONSTANTS FOR SIMULATING AQUEOUS ENVIRONMENTAL MONOMETHYLMERCURY SPECIATION |
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Monomethylmercury (CH3Hg+) is both the most ecologically significant and the least well characterized species of mercury in environmental settings. Our understanding of the enviro...
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AN ECOLOGICAL ASSESSMENT OF WESTERN STREAMS AND RIVERS |
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In the 30 years since the passage of the Clean Water Act, Congress, the American Public and other interest parties have been asking the U.S. Environmental Protection Agency to desc...
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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 ENVIRONMENTAL TECHNOLOGY VERIFICATION (ETV) TESTING OF FOUR MERCURY EMISSION SAMPLING SYSTEMS |
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CEMs - Tekran Instrument Corp. Series 3300 and Thermo Electron's Mercury Freedom System Continuous Emission Monitors (CEMs) for mercury are designed to determine total and/or chemi...
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AN EVALUATION OF FACTORS AFFECTING THE SOLIDIFICATION/STABILIZATION OF HEAVY METAL SLUDGE |
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Solidification/stabilization (SIS) of hazardous waste involves mixing the waste with a binder material to enhance the physical properties of the waste and to immobilize contaminan...
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AN EXAMINATION OF METHODS FOR THE MEASUREMENTS OF REACTIVE GASEOUS MERCURY IN THE ATMOSPHERE. (R825245) |
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Reactive gaseous Hg (RGHg), usually assumed to be HgCl2, may
dominate the total Hg depositional flux due to its higher surface reactivity and
water solubility...
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AN EXAMINATION OF THE ATMOSPHERIC CHEMISTRY OF MERCURY USING 210PB AND 7BE. (R829796) |
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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 INTEGRATED ANALYSIS OF THE POTENTIAL EFFECTIVENESS OF MERCURY EMISSION REDUCTION STRATEGIES IN THE GREAT LAKES |
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Using atmospheric transport and fate models, it has been possible to link the changes in emissions to to the change in atmospheric deposition for the last thirty years for the crit...
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AN INVESTIGATION OF MERCURY LEVELS IN THE FOOD WEB OF ISLE ROYALE NATIONAL PARK, MICHIGAN: REPORT FOR THE AQUATIC SUBPROJECT, SARGENT AND RICHIE LAKES, SUMMER 1998-99 |
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Toxic contaminants are one of the most pressing environmental concerns in the Lake Superior Basin. The "Binational Program to Protect and Restore the Lake Superior Basin," a U.S. a...
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AN OVERVIEW OF EPA'S COMBUSTION RESEARCH PROGRAM |
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The Air Pollution Technology Branch (APTB) of the U.S. Environmental Protection Agency's National Risk Management Research Laboratory, located in Research Triangle Park, North Caro...
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AN OVERVIEW OF EPA'S COMBUSTION RESEARCH PROGRAM |
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The Air Pollution Technology Branch (APTB) of the U.S. Environmental Protection Agency's National Risk Management Research Laboratory, located in Research Triangle Park, North Caro...
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AN OVERVIEW OF THE LAKE MICHIGAN MASS BALANCE MODELING PROJECT: BACKGROUND, ACCOMPLISHMENTS, AND FUTURE WORK |
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Modeling associated with the Lake Michigan Mass Balance Project (LMMBP) is being conducted using WASP-type water quality models to gain a better understanding of the ecosystem tran...
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AN OVERVIEW OF THE MINE WASTE TECHNOLOGY PROGRAM PROJECTS |
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The Mine Waste Technology Program (MWTP) is an interagency agreement with the DOE and has partnerships with Universities, Forest Service, BLM, Industry and states. The mission of t...
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AN OVERVIEW: DECISION-MAKING FRAMEWORK FOR THE ANALYSIS OF ALTERNATIVES FOR THE LONG TERM MANAGEMENT OF MERCURY |
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Over the past decade, the Environmental Protection Agency (EPA) has promoted the use of alternatives to mercury because it is a persistent, bio-accumulative, and toxic (PBT) chemic...
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AN UPDATE ON MERCURY LOADINGS, TRANSPORT, AND FATE IN LAKE MICHIGAN |
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Mr. Rygwelski will present the results of a screening model to address the sources, transport, and fate of mercury from the Lake Michigan Mass Balance Study. The Lake Michigan Mass...
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ANALYSES OF ORGANIC AND INORGANIC MERCURY BY ATOMIC FLUORESCENCE SPECTROMETRY USING A SEMIAUTOMATIC ANALYTICAL SYSTEM |
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The present work describes an improved method for the determination of total and organic mercury by decreasing analysis time (use of a dual circuit), sample size, and handling proc...
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ANALYSIS OF ALTERNATIVES FOR THE LONG TERM MANAGEMENT OF EXCESS MERCURY |
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This paper describes a systematic method for comparing options for the long-term management of surplus elemental mercury in the U.S., using the Analytic Hierarchy Process (AHP) as ...
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ANALYSIS OF MERCURY IN VERMONT AND NEW HAMPSHIRE LAKES: EVALUATION OF THE REGIONAL MERCURY CYCLING MODEL |
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An evaluation of the Regional Mercury Cycling Model (R-MCM, a steady-state fate and transport model used to simulate mercury concentrations in lakes) is presented based on its appl...
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ANALYSIS OF SELECTED SAMPLES FOR METALS UPTAKE |
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Grass samples were collected from the Contrary Creek/D. Boyd Smith reclamation project of the Virginia Water Quality Control Board and the Anvil Points mine treatment experimental ...
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ANNUAL AND SEASONAL TRENDS IN MERCURY DEPOSITION IN MARYLAND. (R825245) |
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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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ANNUAL EMISSIONS OF MERCURY TO THE ATMOSPHERE FROM NATURAL SOURCES IN NEVADA AND CALIFORNIA. (R827634) |
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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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ANODIC STRIPPING VOLTAMMETRY AT A MERCURY FILM ELECTRODE: BASELINE CONCENTRATIONS OF CADMIUM, LEAD, AND COPPER IN SELECTED NATURAL WATERS |
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A simple, rapid, and inexpensive anodic stripping voltammetric method with a mercury thin film electrode is reported for the establishment of baseline concentrations of cadmium, le...
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ANTHROPOGENIC COPPER INVENTORIES AND MERCURY PROFILES FROM LAKE SUPERIOR: EVIDENCE FOR MINING IMPACTS |
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During the past 150 years, the mining indstry discharged more than a billion tons of tailings along Lake Superior shorelines and constructed numerous smelters in the watershed. Giv...
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APOPTOSIS DURING DEVELOPMENT AND AGING AND IN RESPONSE TO MERCURY EXPOSURE. |
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In the central nervous system from embryogenesis through senescence, cell number is regulated, in part, by apoptosis. Each region of the nervous system has a characteristic te...
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APPENDIX C. PRELIMINARY ESTIMATES OF COSTS OF MERCURY EMISSION CONTROL TECHNOLOGIES FOR ELECTRIC UTILITY BOILERS |
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This appendix describes the development of a preliminary assessment of the performance and cost of mercury emission control technologies for utility boilers. It is to supplement an...
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APPLICATION OF A LABORATORY GAS EXCHANGE CHAMBER FOR ASSESSMENT OF IN SITU MERCURY EMISSIONS. (R825249) |
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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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APPLICATION OF COLD VAPOR ATOMIC ABSORPTION SPECTROSCOPY TO THE MEASUREMENT OF MERCURY SPECIATION IN SUBSTRATE. (R825249) |
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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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APPLICATION OF ENVIRONMENTAL GROUNDWATER TRACERS AT THE SULPHUR BANK MERCURY MINE, CALIFORNIA, USA |
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This paper reports on boron, chloride, sulfate, δD, δ18O, and 3H concentrations in surface water and groundwater samples from the Sulphur Bank Mercury Mine, California (SBMM) to ex...
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APPLICATION OF THE ANALYTIC HIERARCHY PROCESS TO COMPARE ALTERNATIVES FOR THE LONG-TERM MANAGEMENT OF SURPLUS MERCURY |
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This paper describes a systematic method for comparing options for the long-term management of surplus elemental mercury in the U.S., using the Analytic Hierarchy Process (AHP) as ...
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APPLICATIONS ANALYSIS REPORT: CAV-OX CAVITATION OXIDATION PROCESS |
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The CAV-OX process was developed by magnum Water Technology to destroy organic The process uses hydrodynamic cavitation, ultraviolet (UV) peroxide to oxidize organic compounds pres...
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APPROACHES TO ECOSYSTEM AND HUMAN EXPOSURE TO MERCURY FOR SENSITIVE POPULATIONS |
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Both human and ecosystem exposure studies evaluate exposure of sensitive and vulnerable populations. We will discuss how ecosystem exposure modeling studies completed for input int...
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APPROACHES TO LINK INFORMATION ABOUT MERCURY EXPOSURE WITH WILDLIFE POPULATION EFFECTS |
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As part of the Office of Research and Development, National Health and Environmental Effects Research Laboratory of the US Environmental Protection Agency (EPA), the Atlantic Eco...
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AQUEOUS AND VAPOR PHASE MERCURY SORPTION BY INORGANIC OXIDE MATERIALS FUNCTIONALIZED WITH THIOLS AND POLY-THIOLS |
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The objective of the study is the development of sorbents where the sorption sites are highly accessible for the capture of mercury from aqueous and vapor streams. Only a small fra...
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AQUEOUS REDUCTION OF HG2+ TO HG0 BY HO2 IN THE CMAQ-MODEL |
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Numerical models of atmospheric mercury are formulated based on the current understanding of mercury chemistry in air and in atmospheric water. Recent evidence that significant r...
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ARE AIRBORNE CONTAMINANTS A RISK FACTOR TO AQUATIC ECOSYSTEMS IN REMOTE WESTERN NATIONAL PARKS (USA) |
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The Western Airborne Contaminants Assessment Project (WACAP) was initiated in 2002 by the National Park Service to determine if airborne contaminants were having an impact on remot...
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ARSENIC AND MERCURY WORKSHOP ON REMOVAL, RECOVERY, TREATMENT AND DISPOSAL |
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A workshop on removal, recovery, treatment, and disposal of arsenic and mercury wastes was held in Alexandria, Virginia on August 17 through 20, 1992. The goals of the workshop wer...
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ARSENIC DETERMINATION BY THE SILVER DIETHYLDITHIOCARBAMATE METHOD AND THE ELIMINATION OF METAL ION INTERFERENCE |
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The interference of metals with the determination of arsenic by the silver diethyldithiocarbamate (SDDC) Method was investigated. Low recoveries of arsenic are obtained when cobalt...
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ARTIFICIAL INTELLIGENCE-BASED ESTIMATION OF MERCURY SPECIATION IN COMBUSTION FLUE GASES. (R827649) |
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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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ASPECTS OF BIOAVAILABILITY OF MERCURY FOR METHYLATION IN PURE CULTURES OF DESULFOBULBUS PROPIONICUS (1PR3). (R827631,R827653) |
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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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ASSESSING AND MANAGING MERCURY FROM HISTORIC AND CURRENT MINING ACTIVITIES |
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In order for ORD to address uncertainties resulting from past or historical mining practices a technology transfer workshop was conducted in November, 2000 in San Francisco, CA. Tw...
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ASSESSING AND MANAGING MERCURY FROM HISTORIC AND CURRENT MINING ACTIVITIES |
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Mining activities in the US (not counting coal) produce between one and two billion tons of mine waste annually. Since many of the ore mines involve sulfide minerals, the productio...
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ASSESSING AND MANAGING MERCURY FROM HISTORIC AND CURRENT MINING ACTIVITIES (PROGRAM FLYER) |
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The conference is designed to achieve three primary goals:
Convey public, non-profit and priva sector perspectives on the assessment and management of mercury associated wit...
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ASSESSING AND MANAGING MERCURY FROM HISTORIC AND CURRENT MINING ACTIVITIES, FIELD TRIP GUIDE TO THE SULPHUR BANK MERCURY MINE, CLEAR LAKE, CALIFORNIA |
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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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ASSESSING AS, HG AND SE SPECIATION AND TRANSPORT IN FLUE GAS DESULPHURIZATION MATERIAL AND DRYWALL |
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The risk associated with the reuse of flue gas desulphurization (FGD) material in drywall manufacture is largely determined by the distribution or mineralogical fractionation of me...
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ASSESSING FISH TISSUE CONTAMINATION ON A REGIONAL SCALE |
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The selection of target fish species for assessing the extent of fish tissue contaminants is a critical consideration in regional stream surveys such as the Environmental Monitorin...
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ASSESSING SPECIATION AND RELEASE OF HEAVY METALS FROM COAL COMBUSTION PRODUCTS |
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In this study, the speciation of heavy metals such as arsenic, selenium, lead, zinc and mercury in coal combustion products (CCPs) was evaluated using sequential extraction procedu...
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ASSESSING THE CONTRIBUTION OF NATURAL SOURCES TO REGIONAL ATMOSPHERIC MERCURY BUDGETS. (R827634) |
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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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ASSESSING THE ECOLOGICAL CONDITION OF STREAMS AND RIVERS IN OREGON FROM PROBABILITY SURVEY DATA |
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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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ASSESSING THE RISK ASSOCIATED WITH MERCURY: USING REVA'S WEBTOOL TO COMPARE DATA, ASSUMPTIONS, AND MODELS |
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The problem of assessing risk from mercury across the nation is extremely complex involving integration of I) our understanding of the methylation process in ecosystems, 2) the ide...
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ASSESSING THE SOURCE OF MERCURY IN FOLIAR TISSUE OF QUAKING ASPEN. (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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ASSESSMENT AND MANAGEMENT OF TOXICS IN THE WATERSHED |
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The demand for water is beginning to outstrip the available supply of water. The truly insidious insult to freshwater supplies comes from anthropogenic impacts that pollute freshw...
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ASSESSMENT OF MERCURY POLLUTION TO THE IRTYSH RIVER IN PAVLODAR, KAZAKHSTAN |
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The threat of polluting the river Irtysh by mercury was caused by high losses of Hg during 1975-1993 during chlor-alkali production at the former PO "Khimprom", Pavlodar, North-Eas...
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ATMOSPHERIC CHEMISTRY AND THE RELATIVE IMPORTANCE OF MERCURY SOURCES |
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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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ATMOSPHERIC MERCURY BEHAVIOR AT DIFFERENT ALTITUDES AT NY-ALESUND DURING SPRING 2003 |
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Intensive field measurements of atmospheric mercury and related species were carried out in Ny Alesund, Spitsbergen during the spring of 2003 at two altitudes. Measurements were ma...
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ATMOSPHERIC MERCURY DEPOSITION TO LAKE MICHIGAN DURING THE LAKE MICHIGAN MASS BALANCE STUDY |
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Wet and dry mercury (Hg) deposition were calculated to Lake Michigan using a hybrid receptor modeling framework. The model utilized mercury monitoring data collected during the ...
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ATMOSPHERIC MERCURY IN THE LAKE MICHIGAN BASIN: INFLUENCE OF THE CHICAGO/GARY URBAN AREA |
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The relative importance of the Chicago/Gay urban area was investigated to determine its impact on atmospheric mercury (Hg) concentrations and wet deposition in the Lake Michigan ...
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ATMOSPHERIC MERCURY MEASUREMENTS: RECENT OBSERVATION IN THE GREAT LAKES BASIN |
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In order to characterize ambient levels of vapor phase and particle mercury at source and receptor locations in the Great Lakes Basin, and to diagnose source regions of atmospheric...
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ATMOSPHERIC MERCURY SCIENCE PROGRAMS BEING UNDERTAKEN IN NORTH AMERICA |
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National and international concern about the health effects and continued use of mercury (Hg) as well as other metals has defined the need for estimates of the long term risks to e...
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ATMOSPHERIC MERCURY SIMULATION USING THE CMAQ MODEL: FORMULATION DESCRIPTION AND ANALYSIS OF WET DEPOSITION RESULTS |
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The Community Multiscale Air Quality (CMAQ) modeling system has recently been adapted to simulate the emission, transport, transformation and deposition of atmospheric mercury in t...
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ATMOSPHERIC MERCURY TRANSPORT AND DEPOSITION |
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The current state of our scientific understanding the mercury cycle tells us that most of the mercury getting into fish comes from atmospheric deposition, but methylation of that m...
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AUTOMATED MEASUREMENTS OF INFRARED SPECTRA OF CHROMATOGRAPHICALLY SEPARATED FRACTIONS |
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The rapid identification of trace organic pollutants in water presents one of the more severe problems for environmental analytical chemists today. Spectroscopic identifications of...
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AUTOMATIC INTERFACING SYSTEM FOR SAMPLING TOTAL MERCURY IN STATIONARY SOURCE EMISSIONS |
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An interfacing system to sample total mercury emissions in source streams and suitably condition, dilute, and transport the sample to a mercury measuring instrument was designed, f...
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Assessment of Caudal Fin Clips as a Non-lethal Technique for Predicting Muscle Tissue Mercury Concentrations in Largeouth Bass |
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The statistical relationship between total mercury (Hg) concentration in clips from the caudal fin and muscle tissue of largemouth bass (Micropterus salmoides) from 26 freshwater s...
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Atmospheric Deposition of Mercury |
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With the advent of the industrial era, the amount of mercury entering the global environment increased dramatically. Releases of mercury in its elemental form from gold mines and c...
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BACTERIA USED TO PRECIPITATE MERCURY IN CONTAMINATED GROUNDWATER OF PAVLODAR, KAZAKHSTAN |
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Abstract for poster presentation: A number of regions in Kazakhstan are contaminated with soluble mercury originating from industrial sources. A chlor-alkali plant that operated fr...
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BEHAVIOR OF MERCURY, CHROMIUM, AND CADMIUM IN AQUATIC SYSTEMS |
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This report is concerned with determining the fate and possible transformations of mercury, cadmium, and chromium in freshwater sediment-water environments. Mercury and cadmium sho...
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BENCH-SCALE INVESTIGATION OF MECHANISMS OF ELEMENTAL MERCURY CAPTURE BY ACTIVATED CARBON |
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The paper gives results of an investigation of the sorption and desorption of gaseous elemental mercury by activated carbon sorbents. wo sorbents were chosen for the study, one (PC...
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BIOACCUMULATION AND AQUATIC SYSTEM SIMULATOR (BASS) USER'S MANUAL BETA TEST VERSION 2.1 |
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BASS (Bioaccumulation and Aquatic System Simulator) is a Fortran 95 simulation program that predicts the population and bioaccumulation dynamics of age-structured fish assemblages ...
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BIOACCUMULATION OF MERCURY AND METHYLMERCURY. (R824778) |
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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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BIOACCUMULATION PATTERNS AND TEMPORAL TRENDS OF MERCURY EXPOSURE IN WISCONSIN COMMON LOONS. (R829085) |
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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 MERCURY IN SEDIMENTS FROM A FLOOD CONTROL RESERVOIR TO HYALELLA AZTECA |
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In the last three years, mercury contamination in North Mississippi flood control reservoirs has become a growing concern. Previous data indicate that three flood control reservoir...
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BIOAVAILABILITY OF MERCURY IN SEDIMENTS FROM A FLOOD CONTROL RESERVOIR TO HYALELLA AZTECA (POSTER SESSION) |
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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 METHYL MERCURY TO SACRAMENTO BLACKFISH (ORTHODON MICROLEPIDOTUS): DISSOLVED ORGANIC CARBON (DOC) EFFECTS. (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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BIOGEOCHEMISTRY OF MERCURY IN VERMONT AND NEW HAMPSHIRE LAKES: AN ASSESSMENT OF MERCURY IN WATER, SEDIMENT, AND BIOTA OF VERMONT AND NEW HAMPSHIRE LAKES - COMPREHENSIVE FINAL PROJECT REPORT |
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This report summarizes findings of a three-year field study of mercury in freshwater lakes of Vermont and New Hampshire. The study was undertaken jointly by the Vermont Department ...
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BIOLOGICAL MONITORING OF TOXIC TRACE METALS. VOLUME 1. BIOLOGICAL MONITORING AND SURVEILLANCE |
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The needs and priorities in using biological accumulator organisms for monitoring toxic trace metals in plants and animals are analyzed. The toxic trace metals selected for study a...
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BIOLOGICAL MONITORING OF TOXIC TRACE METALS. VOLUME 2. TOXIC TRACE METALS IN PLANTS AND ANIMALS OF THE WORLD. PART I |
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The needs and priorities in using biological accumulator organisms for monitoring toxic trace metals in plants and animals are analyzed. The toxic trace metals selected for study a...
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BIOLOGICAL MONITORING OF TOXIC TRACE METALS. VOLUME 2. TOXIC TRACE METALS IN PLANTS AND ANIMALS OF THE WORLD. PART II |
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The needs and priorities in using biological accumulator organisms for monitoring toxic trace metals in plants and animals are analyzed. The toxic trace metals selected for study a...
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BIOLOGICAL MONITORING OF TOXIC TRACE METALS. VOLUME 2. TOXIC TRACE METALS IN PLANTS AND ANIMALS OF THE WORLD. PART III |
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The needs and priorities in using biological accumulator organisms for monitoring toxic trace metals in plants and animals are analyzed. The toxic trace metals selected for study a...
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BIOLOGICAL SIGNIFICANCE OF SOME METALS AS AIR POLLUTANTS. PART II. MERCURY |
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The study was undertaken in order to elucidate the association between low atmospheric mercury levels and changes in some biological parameters likely to react to such exposures. T...
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BIOLOGICALLY BASED DOSE-RESPONSE (BBDR) MODELS FOR MERCURY AS A MECHANISTIC FRAMEWORK FOR ORGANIZING THE EXTANT LITERATURE AND DATA |
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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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BIOLUMINESCENT SENSORS FOR DETECTION OF BIOAVAILABLE HG(II) IN THE ENVIRONMENT |
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Biosensors for the detection of pollutants in the environment can complement analytical methods by distinguishing bioavailable from inert unavailable forms of the contaminants. y u...
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BIOMETHYLATION AND ENVIRONMENTAL TRANSPORT OF METALS |
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This biological methylation of metals and their transport in the Environment are discussed. he methylating agents are methycobalamin and methyl iodide. Methyl metals are more volat...
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BOUNDS ON SUBSURFACE MERCURY FLUX FROM THE SULPHUR BANK MERCURY MINE, LAKE COUNTY, CALIFORNIA |
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The Sulphur Bank Mercury Mine (SBMM) in Lake County, California has been identified as a significant source of mercury to Clear Lake. The mine was operated from the 1860s through ...
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Binding of Vapour-Phase Mercury (Hg0) on Chemically Treated Bauxite Residues (Red Mud) |
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In this study, Hg capture using red mud, seawater-neutralized red mud, and acid-treated red mud is evaluated and compared to other, more conventional sorbent materials. Red mud (al...
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CALCULATION OF SOIL-WATER AND BENTHIC SEDIMENT PARTITION COEFFICIENTS FOR MERCURY |
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To accurately model mercury transport to water bodies, an assessment of this pollutant's behavior in the watershed is critical. Partition coefficients, defined as an estimate of th...
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CALIBRATION AND EVALUATION OF A MERCURY MODEL FOR A WESTERN STREAM AND CONSTRUCTED WETLAND |
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Numerous studies have shown that Steamboat Creek in Nevada is highly contaminated with mercury, with aqueous mercury concentrations more than two orders of magnitude greater than n...
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CAPSULE REPORT: AQUEOUS MERCURY TREATMENT |
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This report describes established technologies and identifies evolving methods for treating aqueous mercury. The information provided encompasses full-, pilot- and bench-scale trea...
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CAPTURE OF MERCURY IN COMBUSTION SYSTEMS BY IN SITU-GENERATED TITANIA PARTICLES WITH UV IRRADIATION |
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In-situ-generated sorbent titania particles with ultraviolet (UV) irradiation have been shown to be effective in capture of mercury in combustor exhausts. Results of experiments co...
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CARBON-13 NUCLEAR MAGNETIC RESONANCE. 13C CHEMICAL SHIFTS AND 13C-199HG COUPLING CONSTANTS FOR SOME ORGANOMERCURY COMPOUNDS |
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The (13)C shieldings and (13)C-(199)Hg coupling constants of fourteen phenyl- and seven alkyl- and alkenyl-mercury compounds have been obtained. Substituent effects on the (13)C sh...
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CARPET AS A FUEL IN CEMENT KILNS |
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The use of carpet in cement kilns is a potential mechanism to build infrastructure for carpet recycling at a large scale. The objectives of this presentation is to describe trials...
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CASE STUDY. MERCURY POLLUTION NEAR A CHEMICAL PLANT IN NORTHERN KAZAKHSTAN |
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In northern Kazakhstan, there is a serious case of mercury pollution near Pavlodar City from an old mercury cell chlor-alkali plant. The soil, sediment, and water are contaminated ...
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CATALYTIC EFFECTS OF CARBON SORBENTS FOR MERCURY CAPTURE. (R827649C001) |
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Activated carbon sorbents have the potential to be an effective means of mercury control in combustion systems. Reactions of activated carbons in flow systems with mercury and g...
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CAV-OX CAVITATION OXIDIATION PROCESS - MAGNUM WATER TECHNOLOGY, INC. - APPLICATIONS ANALYSIS REPORT |
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This report evaluates the ability of the CAV-OX cavitation oxidation process to remove volatile organic compounds (VOC) present in aqueous wastes. This report also presents economi...
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CELL-SURFACE DISPLAY OF SYNTHETIC PHYTOCHELATINS USING ICE NUCLEATION PROTEIN FOR ENHANCED HEAVY-METAL BIOACCUMULATION. (R827227) |
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Synthetic phytochelatins (ECs) composed of (Glu–Cys)nGly are protein analogs of phytochelatin that exhibit improved metal-binding capacity over metallothionein...
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CHALLENGES AND OPPORTUNITIES FOR EMISSION REDUCTIONS FROM THE COAL-FIRED POWER SECTOR IN GROWING ECONOMIES: THE CASE OF COAL-FIRED ELECTRIC UTILITY PLANTS IN RUSSIA |
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China, Russia and India together contribute over one-fourth of the total global greenhouse gas emissions from the combustion of fossil-fuels. This paper focuses on the Russian coal...
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CHALLENGES AND SUCCESSES MODELING THE INFLUENCES OF LAND USE CHANGES ON MERCURY DYNAMICS |
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Linked sets of atmospheric, watershed, water body, and food web models and supporting data are required to evaluate the effectiveness of proposals to regulate atmospheric mercury e...
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CHARACTERISTICS OF MERCURY DESORPTION FROM SORBENTS AT ELEVATED TEMPERATURES. (R822721C697) |
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This study investigated the dynamic desorption characteristics of mercury during the thermal treatment of mercury-loaded sorbents at elevated temperatures under fixed-bed operat...
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CHARACTERISTICS OF MERCURY DESORPTION FROM SORBENTS AT ELEVATED TEMPERATURES. (R826694C697) |
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This study investigated the dynamic desorption characteristics of mercury during the thermal treatment of mercury-loaded sorbents at elevated temperatures under fixed-bed operat...
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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 EH/PH-BASED LEACHING TESTS OF MERCURY-CONTAINING MINING WASTES FROM THE SULFUR BANK MERCURY MINE, LAKE COUNTY, CALIFORNIA |
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Mine waste rock and roaster tailings were collected from the Sulfur Bank Mercury Mine (SBMM) located in Clearlake Oaks, California. The site has been under investigation as a Compr...
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CHARACTERIZATION AND MANAGEMENT OF RESIDUES FROM COAL-FIRED POWER PLANTS |
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The U.S. Environmental Protection Agency (EPA) determined on December 15, 2000, that regulations are needed to control the risks of mercury air emissions from coal-fired power plan...
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CHARACTERIZATION AND PH/EH-BASED LEACHING TESTS OF MINING WASTES CONTAINING MERCURY |
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This study was undertaken as a part of developing treatment alternatives for waste materials, primarily waste rock and roaster tailings, from sites contaminated with mercury (Hg) m...
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CHARACTERIZATION AND PH/EH-BASED LEACHING TESTS OF MINING WASTES CONTAINING MERCURY |
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This study was undertaken as a part of developing treatment alternatives for waste materials, primarily waste rock and roaster tailings, from sites contaminated with Mercury (Hg) m...
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CHARACTERIZATION AND SPECIATION OF MERCURY-BEARING MINE WASTES USING X-RAY ABSORPTION SPECTROSCOPY (XAS). (R827634) |
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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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CHARACTERIZATION OF ACTIVATED CARBONS' PHYSICAL AND CHEMICAL PROPERTIES IN RELATION TO THEIR MERCURY ADSORPTION |
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The paper gives results of a characterization of the physical and chemical properties of the activated carbons used for elemental mercury (Hgo) adsorption, in order to understand t...
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CHARACTERIZATION OF ACTIVATED CARBONS' PHYSICAL AND CHEMICAL PROPERTIES IN RELATION TO THEIR MERCURY ADSORPTION: SYMPOSIUM/CONFERENCE |
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SYMPOS/CONF NRMRL-RTP-P-597 Li*, Y.H., Lee*, C.W., and Gullett*, B.K. Characterization of Activated Carbons' Physical and Chemical Properties in Relation to their Mercury Adsorpti...
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CHARACTERIZATION OF FUGITIVE MERCURY EMISSIONS FROM THE CELL BUILDING AT A U.S. CHLOR-ALKALI PLANT |
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The paper discusses an extensive measurement campaign that was conducted of the fugitive (non-ducted) airborne elemental mercury [Hg(0)] emissions from the cell building of a chlor...
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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 MERCURY EMISSIONS AT A CHLOR-ALKALI PLANT, VOLUME I. REPORT AND APPENDICES A-E |
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The report gives results of a characterization of mercury (Hg) emissions at a chlor-alkali plant. Up to 160 short tons (146 Mg) of Hg is consumed by the chlor-alkali industry each ...
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CHARACTERIZATION OF MERCURY EMISSIONS AT A CHLOR-ALKALI PLANT, VOLUME I. REPORT AND APPENDICES A-E: PROJECT REPORT/SUMMARY |
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NRMRL-RTP-236a Kinsey*, J.S. Characterization of Mercury Emissions at a Chlor-alkali Plant, Volume I. Report and Appendices A-E. 01/28/2002
The report gives results of a charact...
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CHARACTERIZATION OF MERCURY EMISSIONS AT A CHLOR-ALKALI PLANT, VOLUME II. APPENDICES F-J |
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The report gives results of a characterization of mercury (Hg) emissions at a chlor-alkali plant. Up to 160 short tons (146 Mg) of Hg is consumed by the chlor-alkali industry each ...
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CHARACTERIZATION OF MERCURY EMISSIONS AT A CHLOR-ALKALI PLANT, VOLUME II. APPENDICES F-J: PROJECT REPORT/SUMMARY |
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NRMRL-RTP-236b Kinsey*, J.S. Characterization of Mercury Emissions at a Chlor-alkali Plant, Volume II. Appendices F-J. 01/28/2002
The report gives results of a characterizatio...
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CHARACTERIZATION OF MERCURY EMISSIONS AT A CHLOR-ALKALI PLANT: STUDY ORGANIZATION AND IMPLEMENTATION |
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The paper describes the organization and implementation of a detailed emissions measurement campaign conducted over a 2-week period at the Olin Corporation's mercury chlor-alkali p...
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CHARACTERIZATION OF MERCURY-ENRICHED COAL COMBUSTION RESIDUES FROM ELECTRIC UTILITIES USING ENHANCED SORBENTS FOR MERCURY CONTROL |
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Leaching of mercury and other constituents of potential concern during land disposal or beneficial use of coal combustion residues (CCRs) is the environmental impact pathway evalua...
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CHARACTERIZATION OF PRIORITY POLLUTANTS FROM A SECONDARY LEAD AND BATTERY MANUFACTURING FACILITY |
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A plant site at which secondary lead is produced from old batteries was sampled utilizing the U.S. EPA protocol for the priority pollutants. The waste treatment plant at this site ...
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CHARACTERIZATION OF RISKS POSED BY COMBUSTOR EMISSIONS |
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Risk characterization is the final step of the risk assessment process as practiced in the U.S. EPA. In risk characterization, the major scientific evidence and "bottom-line" resul...
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CHARACTERIZATION OF THE FUGITIVE MERCURY EMISSIONS AT A CHLOR-ALKALI PLANT. OVERALL STUDY DESIGN |
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The paper discusses a detailed emissions measurement campaign that was conducted over a 9-day period within a mercury (Hg) cell chlor-alkali plant in the southeastern United States...
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CHARACTERIZING CONTAINERIZED MIXED LOW-LEVEL WASTE FOR TREATMENT - A WORKSHOP PROCEEDINGS |
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This report is the product of a technical workshop held in May 1993 in Las Vegas, Nevada addressing Mixed Low-Level Waste (MLLW). he workshop was conducted by the Environmental Pro...
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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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CHEMICAL CONTAMINANTS IN NONOCCUPATIONALLY EXPOSED U.S. RESIDENTS |
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The report reviews the manner in which chemical contaminants found in nonoccupationally exposed U.S. residents enter the environment and subsequently human tissue. Approximately 10...
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CHEMICAL CONTAMINATION AND TOXICITY ASSOCIATED WITH A COASTAL GOLF COURSE COMPLEX |
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The increasing density of golf courses represents a potential source of contamination to nearby coastal areas, the chemical and biological magnitude of which is almost unknown. Th...
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CHEMICAL MIXTURES: CONSEQUENCES FOR WATER QUALITY |
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Chemicals have the potential to occur as mixtures in sediment, as well as bioaccumulate in aquatic organisms, sometimes resulting in adverse toxicological effects. Presently, asses...
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CHLORINE ABSORPTION IN S(IV) SOLUTIONS |
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The rate of chlorine (Cl2) absorption into aqueous sulfite/bisulfite [S(IV)] solutions was measured at ambient temperature using a highly characterized stirred cell reactor. The re...
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CHLORINE ABSORPTION IN S(IV) SOLUTIONS |
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The report gives results of measurements of the rate of Chlorine (Cl2) absorption into aqueous sulfite/bisulfite -- S(IV) -- solutions at ambient temperature using a highly charact...
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CHLORINE ABSORPTION IN S(IV) SOLUTIONS: PROJECT REPORT/SUMMARY |
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24.) PROJ RPT/SUM NRMRL-RTP-220 Roy, S., and Rochelle, G.T. Chlorine Absorption in S(IV) Solutions, EPA-600/R-01/054. U.S. Environmental Protection Agency. 07/19/2001
The rep...
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CHROMIUM ELECTROANALYSIS AT SCREEN PRINTED ELECTRODE MODIFIED BY THIN FILMS OF NICKEL |
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A rapid and potentially cost-effective electrochemical method is reported for analysis of chromium (VI) and Chromium(III) using a nickel modified screen printed carbon ink ele...
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CHRONIC EFFECTS OF INORGANIC AND ORGANIC MERCURY ON 'DAPHNIA MAGNA': TOXICITY, ACCUMULATION, AND LOSS |
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The present study with Daphnia magna determined the chronic effects of one inorganic and two organic mercury compounds on survival and reproduction; plus the determination of the r...
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CHRONIC TOXICITY AND BIOACCUMULATION OF MERCURIC CHLORIDE IN THE FATHEAD MINNOW ('PIMEPHALES PROMELAS') |
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The present study was conducted to determine the acute and chronic (life cycle) toxicity of inorganic mercury (as mercuric chloride) to the fathead minnow (Pimephales promelas Rafi...
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CLEANING OF MUNICIPAL WASTE INCINERATOR FLUE GAS IN EUROPE |
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The paper gives an overview of a substantial ongoing air pollution control program in West Germany, as it relates to emission of acid gases and other pollutants from municipal refu...
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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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COLLECTION EFFICIENCY EVALUATION OF MERCURY-TRAPPING MEDIA FOR THE SASS TRAIN IMPINGER SYSTEM |
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The report gives results of an investigation of the collection efficiencies of the popularly used media in the SASS train impinger assembly. A simple mercury-vapor generator system...
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COMMENT ON "MERCURY CONCENTRATIONS IN COASTAL CALIFORNIA PRECIPITATION: EVIDENCE OF LOCAL AND TRANS-PACIFIC FLUXES OF MERCURY TO NORTH AMERICA" BY D.J. STEDING AND A.R. FLEGAL. (R829797) |
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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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COMMENTS ON "ATMOSPHERIC MERCURY SPECIES IN THE EUROPEAN ARCTIC: MEASUREMENTS AND MODELING, BY BERG ET AL. ATMOSPHERIC ENVIRONMENT 14 (2001), 2569-2582 |
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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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COMMENTS ON "MEASUREMENTS OF ATMOSPHERIC MERCURY SPECIES AT A COASTAL SITE IN THE ANTARCTIC AND OVER THE SOUTH ATLANTIC OCEAN DURING POLAR SUMMER" |
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Attached comment submitted to Environmental Science and Technology entitled, Comments on "Measurements of Atmospheric Mercury Species at a Costal Site in the Antarctic and over the...
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COMMENTS ON "MERCURY CONCENTRATIONS IN COASTAL CALIFORNIA PRECIPITATION: EVIDENCE OF LOCAL AND TRANS-PACIFIC FLUXES OF MERCURY TO NORTH AMERICA" BY STEDING AND FLEGAL (2002) |
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In a paper by Steding and Flegal [2002], the authors claim to identify Hg in rain from trans-Pacific sources. However, we disagree with this conclusion. Our disagreement derive...
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COMMUNICATING RISKS OF PERSISTANT BIOACCUMULATING TOXICS IN FOODS |
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The primary route of exposure to many persistant bioaccumulating toxins (PBT) such as methyl mercury, PCDs or Dioxins is though foods. Many people, but particularly subsistence fis...
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COMMUNICATING THE RISKS OF FISH CONSUMPTION |
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The primary route of exposure to many persistant bioaccumulating toxins (PBT) such as methyl mercury, PCDs or Dioxins is though foods. Many people, but particularly subsistence fis...
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COMPARATIVE DISINFECTION EFFICIENCY OF PULSED AND CONTINUOUS-WAVE UV IRRADIATION TECHNOLOGIES |
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Pulsed UV (PUV) is novel UV irradiation system that is a non-mercury lamp based alternative to currently used continuous-wave systems for water disinfection. To compare the polych...
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COMPARING FIELD PERFORMANCES OF DENUDER TECHNIQUES IN THE HIGH ARCTIC |
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A field evaluation between two annular denuder system configurations was conducted during the spring of 2003 in the marine Arctic (Ny-Ã…lesund, Svalbard). The IIA annular denuder sy...
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COMPARISON OF DATA FROM SYNTHETIC LEACHATE AND DIRECT SAMPLING OF ACID DRAINAGE FROM MINE WASTES: IMPLICATIONS FOR MERCURY TRANSPORT AND WASTE MANAGEMENT |
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The Sulphur Bank Mercury Mine (SBMM) in Lake County, California operated from the 1860s through the 1950's. Mining for sulfur started with surface operations and progressed to sha...
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COMPARISON OF MEDIUM CONCENTRATION VS. ACTUAL TISSUE DOSE IN IN VITRO NEUROTOXICANT MODELS. |
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In vitro methods have long been used to model the effects of toxicants on the nervous system. Generally, it is assumed that concentrations of toxicant present in the medium surroun...
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COMPARISON OF MERCURY CAPTURE EFFICIENCIES OF THREE DIFFERENT IN SITU GENERATED SORBENTS |
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Three different sorbent materials (Ti, Si and Ca based) were compared for their mercury capture efficiencies in an entrained flow reactor. Agglomerated particles with a high specif...
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COMPARISON OF TWO NON-LETHAL TECHNIQUES TO PREDICT MERCURY(HG) IN THE TISSUES OF LARGE MOUTH BASS (MICROTERUS SALMOIDES) |
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Poster Presentation at a scientific meeting...
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COMPONENTS IDENTIFIED IN ENERGY-RELATED WASTES AND EFFLUENTS |
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A state-of-the-art review of the characterization of solid wastes and aqueous effluents generated by energy-related processes was conducted. The reliability of these data was evalu...
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COMPOSITION OF AUTOMOBILE EVAPORATIVE AND TAILPIPE HYDROCARBON EMISSIONS |
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Mathematical modeling of ambient air photochemistry requires comprehensive mobile source hydrocarbon emissions speciation. Passenger car tailpipe and evaporative hydrocarbon emissi...
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COMPUTATIONAL CHEMISTRY: AN EMERGING TECHNOLOGY FOR SOLVING PROBLEMS IN ATMOSPHERIC CHEMISTRY |
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Over the past three decades, atmospheric chemistry has served as an important component in developing strategies for reducing ambient concentrations of air pollutants. Laborator...
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CONDITION OF ESTUARIES AND BAYS OF HAWAII FOR 2002: A STATISTICAL SUMMARY |
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The National Coastal Assessment (NCA) of US EPA conducted the first probabilistic assessment of the condition of estuarine resources of the main islands of Hawaii in 2002. The stu...
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CONDITION OF ESTUARIES OF CALIFORNIA FOR 1999: A STATISTICAL SUMMARY |
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As a part of the National Coastal Assessment (NCA), the Western Pilot Study under the Environmental Monitoring and Assessment Program (EMAP) initiated a five year Coastal component...
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CONDITION OF ESTUARIES OF THE WESTERN UNITED STATES FOR 1999: A STATISTICAL SUMMARY |
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As a part of the National Coastal Assessment, the Environmental Monitoring and Assessment Program (EMAP) initiated a five-year Western Coastal component in 1999. The objectives of...
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CONDITIONING COAL GAS WITH REFRIGERATED METHANOL IN A SYSTEM OF PACKED COLUMNS |
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The paper discusses potential difficulties in the operation of acid gas removal systems gases produced from coal, based on experience with pilot-scale unit operation. The pilot pla...
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CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: FOUNDATIONS FOR CALIBRATION, QUANTITATION AND SPECTROSCOPY |
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The confocal laser-scanning microscope (CLSM) has enormous potential in many biological fields. The goal of a CLSM is to acquire and quantify fluorescence and in some instruments a...
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CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: FOUNDATIONS FOR MEASUREMENTS, QUANTITATION AND SPECTROSCOPY |
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The confocal laser-scanning microscopy (CLSM) has enormous potential in many biological fields. The goal of a CLSM is to acquire and quantify fluorescence and in some instruments a...
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CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: FOUNDATIONS FOR QUANTIFYING CYTOMETRIC APPLICATIONS WITH SPECTROSCOPIC INSTRUMENTS |
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The confocal laser-scanning microscopy (CLSM) has enormous potential in many biological fields. The goal of a CLSM is to acquire and quantify fluorescence and in some instruments a...
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CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: QA TESTS, QUANTITATION AND SPECTROSCOPY |
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Confocal Microscopy System Performance: QA tests, Quantitation and Spectroscopy.
Robert M. Zucker 1 and Jeremy M. Lerner 2,
1Reproductive Toxicology Division, National H...
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CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: SPECTROSCOPY |
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The confocal laser-scanning microscope (CLSM) has enormous potential in many biological fields. The goal of a CLSM is to acquire and quantify fluorescence and in some instruments a...
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CONFOCAL MICROSCOPY SYSTEM PERFORMANCE: SPECTROSCOPY AND FOUNDATIONS FOR QUANTITATION |
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The confocal laser-scanning microscope (CLSM) has enormous potential in many biological fields. The reliability of the CLSM to obtain specific measurements and quantify fluorescenc...
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CONJUGAL GENE TRANSFER IN AQUATIC MICROBIAL COMMUNITIES DETECTED BY THE EVOLUTION OF A NEW PHENOTYPE |
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An experienced approach based on the assembly of genes of a catabolic pathway was used to detect transconjugants in aquatic communities. esistance to phenylmercury acetate was esta...
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CONSTANTS FOR MERCURY BINDING BY DISSOLVED ORGANIC MATTER ISOLATES FROM THE FLORIDA EVERGLADES. (R827653) |
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Dissolved organic matter (DOM) has been implicated as an important complexing agent for Hg that can affect its mobility and bioavailability in aquatic ecosystems. However, bindi...
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CONTAMINANT LEVELS IN HARBOR SEALS FROM THE NORTHEASTERN UNITED STATES |
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The concentrations of polychlorinated biphenyls (PCBs), organochlorine pesticides, polycyclic aromatic hydrocarbons (PAHs), polychlorinated dibenzofurans (PCDF), polychlorinated di...
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CONTAMINANT LEVELS OF TOTAL MERCURY IN SELECTED FINFISH AND SHELLFISH IN THE ATLANTIC AND GULF OF MEXICO ESTUARIES OF THE UNITED STATES |
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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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CONTAMINANTS AND REMEDIAL OPTIONS AT SELECTED METAL-CONTAMINATED SITES |
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This document provides information that facilitates characterization of the site and selection of treatment technologies at metals-contaminated sites that would be capable of meeti...
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CONTAMINANTS IN FISH |
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The objective of this study was to determine inorganic and organic contaminant concentrations in edible tissue of fish collected from eight coastal areas receiving wastewater disc...
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CONTAMINATION OF FISH IN STREAMS OF THE MID-ATLANTIC REGION: AN APPROACH TO REGIONAL INDICATOR SELECTION AND WILDLIFE ASSESSMENT |
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The extent of contamination of fish in the Mid-Atlantic Region was evaluated as part of the U.S. Environmental Protection Agency's Monitoring and Assessment Program's regional asse...
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CONTROL OF AIR POLLUTION EMISSIONS FROM MUNICIPAL WASTE INCINERATORS IN THE U.S.A. |
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The paper summarizes EPA's municipal waste combustor (MWC) regulations, proposed in September 1994. he paper identifies the technologies on which they are based and discusses accum...
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CONTROL OF MERCURY EMISSIONS FROM COAL-FIRED ELECTRIC UTILITY BOILERS: INTERIM REPORT |
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The report provides additional information on mercury (Hg) emissions control following the release of "Study of Hazardous Air Pollutant Emissions from Electric Utility Steam G...
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CONTROL OF MERCURY EMISSIONS FROM COAL-FIRED ELECTRIC UTILITY BOILERS: INTERIM REPORT (EPA/600/R-01/109) |
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In December 2000, the U.S. Environmental Protection Agency (USEPA) announced its intent to regulate mercury emissions from coal-fired electric utility steam generating plants. This...
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CONTROL OF MERCURY EMISSIONS FROM COAL-FIRED ELECTRIC UTILITY BOILERS: INTERIM REPORT (EPA/600/SR-01/109) |
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The report provides additional information on mercury (Hg) emissions control, following release of Study of Hazardous Air Pollutant Emissions from Electric Utility Steam Generating...
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CONTROL OF MERCURY EMISSIONS FROM COAL-FIRED ELECTRIC UTILITY BOILERS: INTERIM REPORT: PROJECT REPORT/SUMMARY |
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NRMRL-RTP-237 Kilgroe*, J.D., Sedman*, C.B., Srivastava*, R.K., Ryan*, J.V., and Thorneloe*, S. Control of Mercury Emissions from Coal-Fired Electric Utility Boilers: Interim Repo...
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CONTROLLING EMISSIONS FROM FUEL AND WASTE COMBUSTION |
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Control of emissions from combustion of fuels and wastes has been a traditional focus of air pollution regulations. Significant technology developments of the '50s and '60s have be...
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CONTROLLING MULTIPLE EMISSIONS FROM COAL-FIRED POWER PLANTS |
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The paper presents and analyzes nine existing and novel control technologies designed to achieve multipollutant emissions reductions. It provides an evaluation of multipollutant em...
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CONTROLLING SO2 EMISSIONS: A REVIEW OF TECHNOLOGIES |
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The report describes flue gas desulfurization (FGD) technologies, assesses their applications, and characterizes their performance. Additionally, it describes some of the advanceme...
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CONTROLLING SO2 EMISSIONS: A REVIEW OF TECHNOLOGIES (EPA/600/R-00/093) |
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Sulfur dioxide (SO2) scrubbers may be used by electricity generating units to meet the requirements of Phase II of the Acid Rain SO2 Reduction Program.
Additionally, the use of sc...
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COPLANAR PCB AND METAL RESIDUES IN DOLPHINS FROM THE U.S. ATLANTIC COAST INCLUDING THE BOTTLENOSE DOLPHIN OBTAINED DURING THE 1987/88 MASS MORTALITY |
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Bottlenose dolphins (Tursiops truncatus) collected during the 1987/88 mass mortality event along the Atlantic coast of the United States have been analyzed for coplanar PCBs #77, 1...
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COUPLING MERCURY METHYLATION RATES TO SULFATE REDUCTION IN MARINE SEDIMENTS. (R825513C012) |
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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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CREATION OF A GEOGRAPHIC INFORMATION SYSTEM TO IDENTIFY AT-RISK POPULATIONS IN NEW JERSEY AND NEW YORK FOR CONSUMPTION OF CONTAMINATED FISH AND SEAFOOD |
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Project Objective:
To identify at-risk populations, particularly women of child bearing years and young children, for consumption of contaminated fish and seafood via the use of g...
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CRYOGENIC TRAPPING OF OXIDIZED MERCURY SPECIES FROM COMBUSTION FLUE GAS. (R827649) |
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To further understand the speciation and partitioning of mercury species in combustion systems, it is necessary to be able to identify and quantitate the various forms of oxidiz...
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CURRENT METHODS AND RESEARCH STRATEGIES FOR MODELING ATMOSPHERIC MERCURY |
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The atmospheric pathway of the global mercury cycle is known to be the primary source of mercury contamination to most threatened aquatic ecosystems. Current efforts toward numeri...
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CYCLING OF DISSOLVED ELEMENTAL MERCURY IN ARCTIC ALASKAN LAKES. (R829796) |
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Aqueous production and water-air exchange of elemental mercury (Hg0) are important features of the environmental cycling of Hg. We investigated Hg0 cycling...
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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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DATA BASE FOR INFLUENT HEAVY METALS IN PUBLICLY OWNED TREATMENT WORKS |
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Results are presented of a 2-year study involving the identification and assembly of a data base existing within the Publicly Owned Treatment Works (POTW) of the U.S. on influent h...
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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: PEROX-PURE CHEMICAL OXIDATION TREATMENT |
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Technology Description: The perox-pure™ chemical oxidation treatment technology was developed by Peroxidation Systems, Inc. (PSI), to destroy dissolved organic contaminants ...
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DEPOSITION AND EMISSION OF GASEOUS MERCURY TO AND FROM LAKE MICHIGAN DURING THE LAKE MICHIGAN MASS BALANCE STUDY (JULY, 1994 - OCTOBER, 1995) |
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This paper presents measurements of dissolved gaseous mercury (DGM) concentrations in Lake Michigan and the application of a mechanistic approach to estimate deposition and emiss...
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DEPTH PROFILE OF SULFATE-REDUCING BACTERIAL RIBOSOMAL RNA AND MERCURY METHYLATION IN AN ESTUARINE SEDIMENT |
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NO ABSTRACT PROVIDED...
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DERIVATION OF WILDLIFE VALUES FOR MERCURY |
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See the published paper for the abstract....
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DERIVATION OF WILDLIFE VALUES FOR MERCURY |
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A procedure has been developed to estimate surface water concentrations of toxicants that will protect the viability of wildlife populations associated with aquatic resources. This...
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DESCRIPTION AND EVALUATION OF ATMOSPHERIC MERCURY SIMULATION USING THE CMAQ MODEL |
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The Community Multiscale Air Quality (CMAQ) modeling system has recently been adapted to simulate the emission, transport, transformation and deposition of atmospheric mercury in t...
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DETECTION OF MERCURIC BROMIDE IN A GAS PHASE FLOW CELL BY LASER PHOTOFRAGMENT FLUORESCENCE SPECTROSCOPY. (R825380) |
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Photofragment fluorescence (PFF) spectroscopy offers real-time monitoring
capability with high-analytical sensitivity and selectivity for volatile mercury
compounds foun...
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DETECTION OF MERCURY COMPOUNDS IN THE GAS PHASE BY LASER PHOTO-FRAGMENTATION/EMISSION SPECTROSCOPY. (R825380) |
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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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DETERMINATION OF HEAVY METALS AND PESTICIDES IN GINSENG PRODUCTS |
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Medicinal plants may carry residuals of environmentally persistent pesticides or assimilate heavy metals in varying degrees. Several factors may influence contaminant accumulation...
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DETERMINATION OF THE MERCURY COMPLEXATION CHARACTERISTICS OF DISSOLVED ORGANIC MATTER IN NATURAL WATERS WITH "REDUCIBLE HG" TITRATIONS. (R827635) |
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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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DETERMINATION OF TOTAL MERCURY IN FISH TISSUES USING PYROLYSIS ATOMIC ABSORPTION SPECTROMETRY WITH GOLD AMALGAMATION |
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A simple and rapid procedure for measuring total mercury in fish tissues is evaluated and
compared with conventional techniques. Using an automated instrument incorporating co...
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DEVELOPMENT AND APPLICATION OF A TOOL FOR EVALUATING WILDLIFE EXPOSURE RISK ASSOCIATED WITH MERCURY-CONTAMINATED SEDIMENTS |
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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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DEVELOPMENT AND CHARACTERIZATION OF AN ANNULAR DENUDER METHODOLOGY FOR THE MEASUREMENT OF DIVALENT INORGANIC REACTIVE GASEOUS MERCURY IN AMBIENT AIR |
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Atmospheric mercury is predominantly present in the gaseous elemental form (Hg0). However, anthropogenic emissions (e.g. incineration, fossil fuel combustion) emit and natural p...
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DEVELOPMENT AND EVALUATION OF MERCURY CEMS FOR COMBUSTION EMISSIONS MONITORING |
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Continuous emission montiroing systems (CEMS) for mercury (Hg) are receiving increased attention and focus. Their potential use as a compiance assurance tool is of particular inter...
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DEVELOPMENT AND EVALUATION OF MERCURY CEMS FOR COMBUSTION EMISSIONS MONITORING: SYMPOSIUM/CONFERENCE |
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NRMRL-RTP-P-625 Ryan*, J.V. Development and Evaluation of Mercury CEMS for Combustion Emissions Monitoring. 17th Annual Waste and Quality Assurance Symp., Arlington, VA, 08/12/01...
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DEVELOPMENT AND FIELD VALIDATION OF A MICROCOSM TO SIMULATE THE MERCURY CYCLE IN A CONTAMINATED POND |
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A microcosm (consisting of water, sediment and air compartments) was used to simulate mercury geochemical cycling in a mercury contaminated (ug L-1) stream-pond system at Oak Ridge...
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DEVELOPMENT AND TEST APPLICATION A SCREENING-LEVEL MERCURY FATE MODEL AND TOOL FOR EVALUATING WILDLIFE EXPOSURE RISK FOR SURFACE WATERS WITH MERCURY-CONTAMINATED SEDIMENTS (SERAFM) |
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Complex chemical cycling of mercury in aquatic ecosystems means that tracing the linkage between anthropogenic and natural loadings of mercury to watersheds and water bodies and as...
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DEVELOPMENT OF A CL-IMPREGNATED ACTIVATED CARBON FOR ENTRAINED-FLOW CAPTURE OF ELEMENTAL MERCURY |
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Efforts to discern the role of an activated carbon's surface functional groups on the adsorption of elemental mercury [Hg(0)] and mercuric chloride demonstrated that chlorine (Cl) ...
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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 ADRENERGIC RECEPTOR BINDING SITES IN BRAIN REGIONS OF THE NEONATAL RAT: EFFECTS OF PRENATAL OR POSTNATAL EXPOSURE TO METHYLMERCURY |
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In order to understand the effects of developmental exposure to methyl/mercury on the ontogeny of synaptic function, the impact of prenatal or postnatal exposure on acquisition of ...
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DEVELOPMENT OF AN OPTICAL MONITOR FOR TOXIC ORGANIC COMPOUNDS IN AIR |
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The objectives of the study were: (a) to design, construct, and deliver a prototype atomic line molecular spectrometer (ALMS) benzene monitor and (b) to locate matches of atomic li...
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DEVELOPMENT OF COST-EFFECTIVE NONCARBON SORBENTS FOR HG0 REMOVAL FROM COAL-FIRED POWER PLANTS |
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Noncarbon materials or mineral oxides (silica gel, alumina, molecular sieves, zeolites, and montmorillonite) were modified with various functional groups such as amine, amide, thio...
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DEVELOPMENT OF LAND DISPOSAL DECISIONS FOR METALS USING MINTEQ SENSITIVITY ANALYSES |
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Procedures were developed for estimating the impacts of metal speciation reactions on the potential transport of metals through groundwater to a measurement point directly down gra...
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DEVELOPMENT OF NONCARBON SORBENTS FOR HG0 REMOVAL FROM COAL-FIRED POWER PLANTS |
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Noncarbon materials or mineral oxides (silica gel, alumina, molecular sieves, zeolites, and montmorillonite) were modified with various functional groups, such as amine, amide, thi...
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DEVELOPMENT OF REAL-TIME MONITORS FOR GASEOUS FORMALDEHYDE |
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Two new methods for real-time measurement of gaseous formaldehyde have been developed. ne is a spectroscopic method based on direct fluorescence detection of gaseous formaldehyde f...
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DEVELOPMENT OF TOOLS TO ASSESS THE EFFECTS OF INDIVIDUAL, POPULATION, AND SPATIAL LEVELS: INTEGRATED ASSESSMENT OF MULTIPLE STRESSORS ON PISCIVOROUS BIRDS |
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The goal of the US Environmental Protection Agency's National Health and Environmental Research Laboratory's Wildlife Risk Assessment program is to develop scientifically valid met...
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DEVELOPMENT, EVALUATION AND APPLICATION OF AN AUTOMATED EVENT PRECIPITATION SAMPLER FOR NETWORK OPERATION |
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In 1993, the University of Michigan Air Quality Laboratory (UMAQL) designed a new wet-only precipitation collection system that was utilized in the Lake Michigan Loading Study. Th...
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DIEL TEMPERATURE EFFECTS ON THE EXCHANGE OF ELEMENTAL MERCURY BETWEEN THE ATMOSPHERE AND UNDERLYING WATERS |
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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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DIETARY METHYL MERCURY EXPOSURE IN AMERICAN KESTRELS; PILOT STUDY |
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Anthropogenic mercury emissions have increased atmospheric mercury levels about threefold since the advent of industrial activity. Atmospheric deposition is the primary source of m...
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DIFFERENTIAL MERCURY VOLATILIZATION BY TOBACCO ORGANS EXPRESSING A MODIFIED BACTERIAL MERA GENE. (R827612E02) |
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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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DIFFUSION AND PERCEPTION OF MERCURY RISK INFORMATION |
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Approximately 8% of American women have blood Mercury levels exceeding the EPA reference dose (a dose below which symptoms would be unlikely). The children of these women are at ri...
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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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DIRECT DETERMINATION OF CHELONS AT TRACE LEVELS BY ONE-DROP SQUARE-WAVE POLAROGRAPHY |
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The direct anodic oxidation of mercury in the presence of chelons can be used for determination of the chelons at trace levels. One-drop square-wave polarography proved superior to...
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DIRECT MERCURY ANALYSIS IN ENVIRONMENTAL SOLIDS BY ICPMS WITH ON-LINE SAMPLE ASHING AND MERCURY PRE-CONCENTRATION USING THE DIRECT MERCURY ANALYZER |
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A Direct Mercury Analyzer based on sample combustion and mercury concentration by gold amalgamation, followed by atomic absorption determination, was interfaced with a quad...
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DIRECT MERCURY ANALYSIS IN ENVIRONMENTAL SOLIDS BY ICPMS WITH ON-LINE SAMPLE ASHING AND MERCURY PRECONCENTRATION USING A DIRECT MERCURY ANALYZER |
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Mercury is a persistent, mobile, and highly toxic pollutant. It's biogeochemistry is probably the most complex of any metal. For these reasons, the U.S. Environmental Protection A...
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DISEASES, PARASITES, AND TOXIC RESPONSES OF COMMERCIAL PENAEID SHRIMPS OF THE GULF OF MEXICO AND SOUTH ATLANTIC COASTS OF NORTH AMERICA |
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A reference work and review of both infectious and noninfectious diseases of commercial penaeid shrimps of the Gulf and South Atlantic region of the United States is presented. Dis...
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DISPOSITION OF INHALED MERCURY VAPOR IN PREGNANT RATS: MATERNAL TOXICITY AND EFFECTS ON DEVELOPMENTAL OUTCOME. |
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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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DISSOLVED ELEMENTAL MERCURY INVESTIGATIONS IN LONG ISLAND SOUND USING ON-LINE AU AMALGAMATION-FLOW INJECTION ANALYSIS. (R827635) |
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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 TRANSFORMATION OF ELEMENTAL MERCURY IN THE ST. LAWRENCE RIVER AND LAKE ONTARIO. (R827915) |
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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 MERCURY IN THE TISSUES OF FIVE SPECIES OF FRESHWATER FISH FROM LAKE MEAD, USA |
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Total mercury (Hg) concentrations were determined in seven tissues (skeletal muscle, liver,
blood, gonad, brain, gill, and heart) of 59 striped bass and four tissues (muscle, l...
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DISTRIBUTION OF MERCURY IN USEPA REGION IX R-EMAP STUDY AREAS |
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Mercury distribution within U .S. EP A Region IX Regional Environmental Monitoring and Assessment Program (R-EMAP) study units is associated with geology and land-use practices. St...
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DISTRIBUTION OF SEDIMENT MERCURY CONCENTRATIONS IN THE HUMBOLDT RIVER WATERSHED |
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In 1998 the United States Environmental Protection Agency (USEPA) required the mining industry to list all releases to the environment exceeding the Toxic Release Inventory...
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DIVALENT INORGANIC REACTIVE GASEOUS MERCURY EMISSIONS FROM A MERCURY CELL CHLOR-ALKALI PLANT AND ITS IMPACT ON NEAR FIELD ATMOSPHERIC DRY DEPOSITION |
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The emission of inorganic divalent reactive gaseous mercury (RGM) from a mercury cell chlor-alkali plant (MCCAP) cell building and the impact on near field (100 km) dry depositio...
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DOCUMENTATION FOR THE GRIDDED HOURLY ATRAZINE EMISSIONS DATA SET FOR THE LAKE MICHIGAN MASS BALANCE STUDY: A FINAL CONTRACT REPORT |
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In order to develop effective strategies for toxics management, the Great Lakes National Program Office (GLNPO) of the United States Environmental Protection Agency (U.S. EPA), i...
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DREDGING IMPACT ON AN URBANIZED FLORIDA BAYOU: EFFECTS ON BENTHOS AND ALGAL-PERIPHYTON. |
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Environmental effects of dredging events have been uncommonly reported for shallow, residential estuaries characteristic of the Gulf of Mexico region. The objective of this study ...
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DRINKING WATER CRITERIA DOCUMENT FOR MERCURY (FINAL DRAFT) |
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The Office of Drinking Water (ODW), U.S. Environmental Protection Agency has prepared a Drinking Water Criteria Document on mercury. The Criteria Document is an extensive review of...
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DRY FLUE GAS CLEANING PROCESSES FOR ACHIEVING AIR POLLUTANT EMISSIONS REQUIREMENTS |
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The paper discusses both municipal waste combustor (MWC) rules and basic dry flue gas cleaning (FCC) processes, and compares the performance of the latter using field test data. Me...
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DYNAMIC OXIDATION OF GASEOUS MERCURY IN THE ARCTIC TROPOSPHERE AT POLAR SUNRISE |
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Gaseous elemental mercury (Hg0) is a globally distributed air toxin with a long atmospheric residence time. Any process that reduces it atmospheric lifetime increases its potent...
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Developmental neurotoxicity testing: Past, present and future. |
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Adverse effects on the nervous system following exposure to environmental contaminants during development have been well documented. Indeed, in a number of cases (e.g., lead, meth...
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ECOLOGICAL ASSESSMENT OF ARIZONA'S STREAMS AND RIVERS, 2000-2004 |
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The State of Arizona participated in a U.S. Environmental Protection Agency (EPA) ecological assessment of Western streams. One goal of the assessment was to report on the ecologi...
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ECONOMIC AND ENVIRONMENTAL ANALYSIS OF TECHNOLOGIES TO TREAT MERCURY AND DISPOSE IN A MONOFILL |
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If all of the chlor alkali plants in the world shut down, it is estimated that 25-30,000 metric tons of mercury would be available worldwide. This presentation is intended to descr...
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ECONOMIC AND ENVIRONMENTAL ANALYSIS OF TECHNOLOGIES TO TREAT MERCURY AND DISPOSE IN A WASTE CONTAINMENT FACILITY |
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This report is intended to describe an economic and environmental analysis of a number of technologies for the treatment and disposal of elemental mercury. The analysis considers t...
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EFFECT OF DIFFERENT POLLUTANTS ON ECOLOGICALLY IMPORTANT POLYCHAETE WORMS |
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The procedures for culturing marine polychaetous annelids from egg to egg under laboratory conditions were described. A manual was prepared detailing the procedures used in culturi...
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EFFECT OF METHYL MERCURY CHLORIDE EXPOSURE ON PC12 CELL INTEGRIN EXPRESSION AND FUNCTION. |
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Integrins are heterodimeric transmembrane cell adhesion proteins composed of a and b protein subunits. They are important during brain development in a number of critical function...
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EFFECT OF MOISTURE ON ADSORPTION OF ELEMENTAL MERCURY BY ACTIVATED CARBON |
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The paper discusses experiments using activated carbon to capture elemental mercury (Hgo), and a bench-scale dixed-bed reactor and a flow reactor to determine the role of surface m...
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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 SCR CATALYST ON MERCURY SPECIATION |
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A pilot-scale research study was conducted to investigate the effect of selective catalytic reduction (SCR) on elemental mercury speciation in bituminous and subbituminous coal com...
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EFFECT OF SUBLETHAL METAL POLLUTANTS ON THE FIDDLER CRAB 'UCA PUGILATOR' |
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Studies have been carried out on the synergistic effects of sublethal concentrations of mercury (Hg) and/or cadmium (Cd) in conjunction with temperature and salinity stress on larv...
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EFFECT OF WATER POLLUTANTS AND OTHER CHEMICALS UPON RIBONUCLEASE ACTIVITY IN VITRO |
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Ribonuclease was treated in vitro with 73 chemicals, many of which are environmental pollutants, including inorganic, organic, and metal-organic chemicals, pesticides, and other bi...
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EFFECTS OF A COASTAL GOLF COMPLEX ON WATER QUALITY, PERIPHYTON, AND SEAGRASS. |
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The objective of this study was to determine the effects of a golf course complex on water quality, colonized periphyton and seagrass meadows in adjacent freshwater, near-coastal a...
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EFFECTS OF CADMIUM AND MERCURY ON THE BEHAVIORAL RESPONSES AND DEVELOPMENT OF 'EURYPANOPEUS DEPRESSUS' LARVAE |
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Larval stages of the estuarine mud crab Eurypanopeus depressus were exposed to either 10 ppb cadmium or 1.8 ppb mercury in a flow-through rearing system. Development time from the ...
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EFFECTS OF CHLORIDE ION CONCENTRATION ON MERCURY(I) CHLORIDE FORMATION DURING EX SITU AND IN SITU MERCURY DEPOSITION WITH SELECTED ELECTRODE SUBSTRATES AND ELECTROLYTES. (R825511C022) |
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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 COMMONLY USED COOKING PRACTICES ON TOTAL MERCURY CONCENTRATION IN FISH AND THEIR IMPACT ON EXPOSURE ASSESSMENTS |
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The effects of cooking practices commonly used by Native Americans on total mercury concentrations in fish were investigated. A preparation factor relating mercury concentrations i...
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EFFECTS OF COMMONLY USED COOKING PRACTICES ON TOTAL MERCURY CONCENTRATIONS IN FISH AND THEIR IMPACT ON EXPOSURE ASSESSMENT. |
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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 FLUE GAS CONSTITUENTS ON MERCURY SPECIATION. (R827649) |
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Beginning with the 1990 Clean Air Act Amendments, there has been considerable interest in mercury emissions from coal-fired power plants. This past year, the U.S. Environmental ...
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EFFECTS OF FLUE GAS HCL/SO2 RATIO AND FLY ASH TRANSITION METAL CONTENT ON MERCURY SPECIATION IN WASTE COMBUSTION PROCESSES |
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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 FLY ASH TRANSITION METAL CONTENT AND FLUE GAS HCL/SO2 RATIO ON MERCURY SPECIATION IN WASTE COMBUSTION |
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The paper presents results of research on the effect of sulfur dioxide (SO2):HCI ratio on heterogeneous Hg0 oxidation. The addition of SO2 to moist flue gas at high SO2:HCI ratios ...
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EFFECTS OF FLY ASH TRANSITION METAL CONTENT AND FLUE GAS HCL/SO2 RATIO ON MERCURY SPECIATION IN WASTE COMBUSTION |
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The paper presents results of research on the effect of sulfur dioxide (SO2):HCI ratio on heterogeneous Hg0 oxidation. The addition of SO2 to moist flue gas at high SO2:HCI ratios ...
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EFFECTS OF IRON CONTENT IN COAL COMBUSTION FLY ASHES ON SPECIATION OF MERCURY |
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The paper discusses the effects of iron content in coal combustion fly ashes on speciation of mercury. (NOTE: The chemical form of mercury species in combustion flue gases is an im...
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EFFECTS OF MERCURY ELECTRODEPOSITION ON THE SURFACE OF MICROLITHOGRAPHICALLY FABRICATED IR ULTRAMICROELECTRODES. (R825511C022) |
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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 MERCURY VAPOR AND GENDER ON SUSTAINED ATTENTION IN 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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EFFECTS OF METHYL MERCURY EXPOSURE ON THE GROWTH OF JUVENILE COMMON LOONS. (R829085) |
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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 METHYL MERCURY ON REPRODUCTION IN AMERICAN KESTRELS |
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This paper contains results of a study of the impact of methyl mercury on reproduction of American kestrels....
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EFFECTS OF METHYL MERCURY ON REPRODUCTION IN AMERICAN KESTRELS |
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This presentation contains results of a study of the impact of methyl mercury on reproduction of American kestrels. Egg production, incubation performance, and the number of eggs h...
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EFFECTS OF METHYLMERCURY ON REPRODUCTION IN AMERICAN KESTRELS AND COMPARISON TO EFFECTS OBSERVED IN OTHER AVIAN SPECIES |
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A study of the effects of methylmercury on reproduction in American kestrels was conducted in conjunction with the USGS Patuxent Wildlife Research Center as part of a larger projec...
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EFFECTS OF NOX, A-FE2O3, LAMDA-FE2O3, AND HCL ON MERCURY TRANSFORMATIONS IN A 7-KW COAL COMBUSTION SYSTEM. (R827649) |
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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 SEVERAL METALS ON SMOLTING OF COHO SALMON |
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Exposure to sublethal levels of copper in freshwater reduces Na,K-activated gill ATP'ase in coho salmon and results in latent effects such as poor migration and poor survival in se...
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EFFECTS OF SOME TRACE ELEMENTS ON THE BLOOD OF KUWAIT MULLETS 'LIZA MACROLEPS' (SMITH) |
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Haemopathological changes attributed to heavy metal poisoning observed in blood smears of Liza macrolepis (Smith) taken after exposures of 96 h to graded doses (mg/l) of copper (0....
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EFFECTS OF SPATIAL EXTENT ON LANDSCAPE STRUCTURE AND SEDIMENT METAL CONCENTRATION RELATIONSHIPS IN SMALL ESTUARINE SYSTEMS OF THE US MID-ATLANTIC COAST |
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Prior studies exploring the quantitative relationship between landscape structure metrics and the ecological condition of receiving waters have used a variety of sampling units (e....
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ELECTROCHEMICAL DETECTION OF IONIC MERCURY AT BORON-DOPED DIAMOND ELECTRODES. (R829410E02) |
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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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ELECTROCHEMICAL REMEDIATION TECHNOLOGIES (ECRTS) - IN SITU REMEDIATION OF CONTAMINATED MARINE SEDIMENTS |
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This Innovative Technology Evaulation Report summarizes the results of the evaluation of the Electrochemical Remediation Technologies (ECRTs) process, developed by P2-Soil Remediat...
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ELECTROCHEMICAL REMEDIATION TECHNOLOGIES (ECRTS) DEMONSTRATION BULLETIN |
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The ElectroChemical Remediation Technologies (ECRTs) process was developed by P2-Soil Remediation, Inc. P-2 Soil Remediation, Inc. formed a partnership with Weiss Associates and El...
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ELEMENTAL MERCURY ADSORPTION BY ACTIVATED CARBON TREATED WITH SULFURIC ACID |
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The paper gives results of a study of the adsorption of elemental mercury at 125 C by a sulfuric-acid (H2S04, 50% w/w/ solution)-treated carbon for the removal of mercury from flue...
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ELEMENTAL MERCURY CAPTURE BY ACTIVATED CARBON IN A FLOW REACTOR |
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The paper gives results of bench-scale experiments in a flow reactor to simulate the entrained-flow capture of elemental mercury (Hgo) using solid sorbents. Adsorption of Hgo ...
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ELEMENTAL MERCURY IN COPPER, SILVER, AND GOLD ORES: AN UNEXPECTED CONTRIBUTION TO LAKE SUPERIOR SEDIMENTS WITH GLOBAL IMPLICATIONS |
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Mercury and copper inventories are low in central Lake Superior and increase markedly towards the Keweenaw Peninsula...where copper, mercury, and silver inventories are elevated an...
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EMERGING TECHNOLOGY BULLETIN: DEVELOPMENT OF A PHOTOTHERMAL DETOXIFICATION UNIT - ENVIRONMENTAL SCIENCE AND ENGINEERING GROUP - UNIVERSITY OF DAYTON RESEARCH INSTITUTE |
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The University of Dayton Research Institute has developed a novel photochemical process embodied in a device called a Photothermal Detoxification Unit (PDU) which offers an efficie...
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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: DESTRUCTION OF ORGANIC CONTAMINANTS IN AIR USING ADVANCED ULTRAVIOLET FLASHLAMPS |
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This paper describes a new process for photo-oxidation of volatile organic compounds (VOCs) in air using an advanced ultraviolet source, a Purus xenon flashlamp. The flashlamps hav...
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EMERGING TECHNOLOGY SUMMARY: REMOVAL AND RECOVERY OF METAL IONS FROM GROUNDWATER |
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A series of bench-scale tests and an onsite pilot scale demonstration
of Bio-Recovery Systems' AlgaSORB® technology for the removal and
recovery of mercury-contaminated groundw...
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EMISSION RATES OF MERCURY FROM LATEX PAINTS |
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The paper gives results of tests of latex paints containing organic mercury additives in small environmental test chambers to determine the emission rates of mercury. Five paints w...
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EMISSION TEST REPORT - FIELD TEST OF CARBON INJECTION FOR MERCURY CONTROL - CAMDEN COUNTY MUNICIPAL WASTE COMBUSTOR |
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The report gives results of parametric test to evaluate the injection powdered activated carbon to control volatile pollutants in municipal waste combustor (MWC) flue gas. he tests...
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EMISSION TEST REPORT, OMSS FIELD TEST ON CARBON INJECTION FOR MERCURY CONTROL |
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The report discusses results of a parametric evaluation of powdered activated carbon for control of mercury (Hg) emission from a municipal waste cornbustor (MWC) equipped with a li...
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EMISSION TEST REPORT, OMSS FIELD TEST ON CARBON INJECTION FOR MERCURY CONTROL |
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The report discusses results of a parametric evaluation of powdered activated carbon for control of mercury (Hg) emission from a municipal waste combustion (MWC) equipped with a li...
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EMISSION TEST REPORT- FIELD TEST OF CARBON INJECTION FOR MERCURY CONTROL, CAMDEN COUNTY MUNICIPAL WASTE COMBUSTOR |
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The report gives results of parametric test to evaluate the injection powdered activated carbon to control volatile pollutants in municipal waste combustor (MWC) flue gas. he tests...
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EMPIRICAL RELATIONSHIPS BETWEEN LAND USE/COVER AND ESTUARINE CONDITION IN THE NORTHEASTERN UNITED STATES |
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Land–water interactions were examined in three regions in the Virginian Biogeographic Province; the southern shore of Cape Cod, Massachusetts; the Hudson/Raritan region of New York...
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ENGINEERING AND ECONOMIC FACTORS AFFECTING THE INSTALLATION OF CONTROL TECHNOLOGIES FOR MULTIPOLLUTANT STRATEGIES |
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The report evaluates the engineering and economic factors associated with installing air pollution control technologies to meet the requirements of strategies to control sulfur dio...
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ENTRAINED-FLOW ADSORPTION OF MERCURY USING ACTIVATED CARBON |
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Bench-scale experiments were conducted in a flow reactor to simulate entrained-flow capture of elemental mercury (Hg) by activated carbon. Adsorption of Hg by several commercial ac...
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ENVIRONMENTAL CHAMBER STUDIES OF MERCURY REACTIONS IN THE ATMOSPHERE |
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Mercury is released into the environment through both natural and anthropogenic pathways. The cycling and fate of mercury in atmospheric, soil, and water ecosystems is impacted by...
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ENVIRONMENTAL CONSIDERATIONS OF SELECTED ENERGY CONSERVING MANUFACTURING PROCESS OPTIONS: VOLUME XII. CHLOR-ALKALI INDUSTRY REPORT |
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This study assesses the likelihood of new process technology and new practices being introduced by energy intensive industries and explores the environmental impacts of such change...
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ENVIRONMENTAL CONTAMINATION AND DEVELOPMENTAL ABNORMALITIES IN EGGS AND HATCHLINGS OF THE COMMON SNAPPING TURTLE (CHELYDRA SERPENTINA SERPENTINA) FROM THE GREAT LAKES-ST. LAWRENCE RIVER BASIN (1989-91). (R827102) |
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AbstractDuring 1989-91, we assessed developmental abnormalities in embryos and hatchlings from eggs of the common snapping turtle (Chelydra serpentina serpentina...
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ENVIRONMENTAL CONTROL OF TOXIC METAL AIR EMISSIONS FROM THE COMBUSTION OF COAL AND WASTES |
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The paper is concerned with the partitioning of toxic metals (e.g., arsenic, selenium, mercury, chromium, lead, and cadmium) during combustion, and with the mitigation of their eff...
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ENVIRONMENTAL EFFECTS OF A GOLF COMPLEX ON COASTAL WETLANDS IN THE GULF OF MEXICO |
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The increasing density of golf courses represents a potential source of contamination to nearby coastal wetlands and other near-shore areas. The chemical and biological magnitude o...
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ENVIRONMENTAL EFFECTS OF OIL SHALE MINING AND PROCESSING. PART III - THE WATER QUALITY OF PICEANCE CREEK, COLORADO, PRIOR TO OIL SHALE PROCESSING |
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Water quality data have been collected at seven sites along Piceance Creek and at one site each along Stewart, Black Sulphur, and Yellow Creeks in the Piceance Basin, Colorado, dur...
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ENVIRONMENTAL EFFECTS OF WESTERN COAL COMBUSTION. PART III. THE WATER QUALITY OF ROSEBUD CREEK, MONTANA |
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The results of a study on Rosebud Creek, Montana, designed to assess the impacts on water quality of surface coal mining and/or coal combustion at Colstrip are summarized herein. A...
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ENVIRONMENTAL FACTORS ASSOCIATED WITH MENTAL RETARDATION AND DEVELOPMENT DISABILITY |
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Abstract
A number of environmental agents have been shown to demonstrate neurotoxic effects either in human or laboratory animal studies. Critical windows of vulnerability ...
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ENVIRONMENTAL PERFORMANCE AND COSTS ASSOCIATED WITH THE TREATMENT AND DISPOSAL OF ELEMENTAL MERCURY IN A MONOFILL |
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It has been predicted that there will be a worldwide glut of mercury. The magnitude and timing depends on when the chlor-alkali industry switches from Hg cell technology. Mercury c...
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ENVIRONMENTAL RESEARCH BRIEF: WASTE MINIMIZATION ASSESSMENT FOR A PAINT MANUFACTURING PLANT |
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The U.S. Environmental Protection Agency (EPA) has funded a pilot project to assist small- and medium- size manufacturers who want to minimize their generation of hazardous waste b...
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ENVIRONMENTAL SCIENCES IN THE 21ST CENTURY: PARADIGMS, OPPORTUNITIES, AND CHALLENGES |
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In: Environmental Sciences in the 21st Century: Paradigms, Opportunities, and Challenges: Abstract Book: SETAC 21st Annual Meeting, 12-16 November 2000, Nashville, TN.. Society of...
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ENVIRONMENTAL SCREENING MODELING OF MERCURY IN THE UPPER EVERGLADES OF SOUTH FLORIDA |
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This screening modeling analysis examines mercury sources and fate in the upper canals of the South Florida Everglades. Mass balance modeling techniques are applied along with avai...
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ENVIRONMENTAL SIGNIFICANCE OF THE POTENTIAL FOR MER(TN21) MEDIATED REDUCTION OF HG2 TO HG0 IN NATURAL |
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The role of 1) in adaptation of aquatic microbial communities to Hg2+ was investigated. Elemental mercury was the sole product of Hg2+ volatilization by freshwater and saline micro...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT REMOVAL OF MERCURY FROM DENTAL OFFICE WASTEWATER |
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Verification testing of the DRNA Mercury Recovery Unit (MRU) was conducted during a seven-week period, at a dental office in Michigan that had three operatory rooms and two hygiene...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION: JOINT (NSF-EPA) VERIFICATION STATEMENT AND REPORT FOR THE REMOVAL OF MERCURY FROM DENTAL OFFICE WASTEWATER, DENTAL RECYCLING OF NORTH AMERICA (DRNA) MERCURY REMOVAL UNIT (MRU). - NSF 02/01/EPAWQPC-SWP |
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Verification testing of the Dental Recycling North America (DRNA) Mercury Removal Unit (MRU) was conducted over a seven week period, at a dental office in Michigan that had three o...
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ENVIRONMENTAL TECHNOLOGY VERIFICATION: JOINT (NSF-EPA) VERIFICATION STATEMENT AND REPORT; UV DISINFECTION FOR REUSE APPLICATION, AQUIONICS, INC. BERSONINLINE 4250 UV SYSTEM |
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Verification testing of the Aquionics, Inc. bersonInLine® 4250 UV System to develop the UV delivered dose flow relationship was conducted at the Parsippany-Troy Hills Wastewater Tr...
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EPA DETERMINATION STUDIES ON THE CONTROL OF TOXIC AIR POLLUTION EMISSIONS FROM ELECTRIC UTILITY BOILERS |
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The U. S. Environmental Protection Agency (EPA) is to determine whether the regulation of hazardous air pollution (HAP) emissions from electric utility generating plants is necessa...
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EPA LABORATORIES IMPLEMENT EMS PROGRAM |
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This paper highlights the breadth and magnitude of carrying out an effective Environmental Management System (EMS) program at the U.S. EPA's research and development laboratories. ...
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EPA METHOD STUDY 8, TOTAL MERCURY IN WATER |
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The Environmental Monitoring and Support Laboratory-Cincinnati of EPA conducts EPA's quality assurance program for the water laboratories and assists EPA laboratories in the choice...
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EPA PERSPECTIVE ON MERCURY TREATMENT AND DISPOSAL PRACTICES IN THE US |
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Mercury wastes are difficult to effectively and cheaply treat and remediate. Many of its special challenges are due to its complex chemistry, its multiple valence states and its te...
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EPA'S FIELD DEMONSTRATION OF INNOVATIVE CAPPING TECHNOLOGIES FOR THE RISK MANAGEMENT OF CONTAMINATED SEDIMENTS |
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Research on capping technologies is directed at assessing the effectiveness of innovative capping materials, factors that control contaminant release at the sediment-water interfac...
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EPA'S OFFICE OF RESEARCH AND DEVELOPMENT PERSPECTIVE ON THE LONG-TERM MANAGEMENT OF EXCESS MERCURY |
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The Agency is discussing the issues of the long-tem management and retirement of excess mercury. The concept of mercury "retirement" or the long-term management of excess mercury i...
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EPA/ORD WORKSHOP ON SOURCE EMISSION AND AMBIENT AIR MONITORING OF MERCURY. OPENING & CLOSING REMARKS AND OVERVIEW |
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The Mercury Monitoring Workshop was developed because mercury contamination, both nationally and internationally, has long been recognized as a growing problem for both humans and ...
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ESTABLISHING MERCURY TOXICITY THRESHOLDS FOR CRITICAL LIFE STAGES OF COMMON LOONS - IN OVO EXPOSURE |
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Survival of common loon embryos through hatch was assessed in untreated eggs and in eggs injected with varying amounts of mercury....
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ESTIMATING RESIDENTIAL EXPOSURE TO DRINKING WATER ARSENIC IN INNER MONGOLIA, CHINA FOR EPIDEMIOLOGIC STUDIES |
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ESTIMATING RESIDENTIAL EXPOSURE TO DRINKING WATER ARSENIC IN INNER MONGOLIA, CHINA FOR EPIDEMIOLOGIC STUDIES
Richard Kwok1, Pauline Mendola1 Zhixiong Ning2, Zhiyi Liu2 and J...
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ETHYLMERCURY: FORMATION IN PLANT TISSUES AND RELATION TO METHYLMERCURY FORMATION |
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Seedlings of the common dwarf garden pea, Pisum sativum, cv. Little Marvel, exposed to elemental mercury vapor formed both methylmercury and ethylmercury in all parts of the plant....
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ETV REPORT: REMOVAL OF CHEMICAL CONTAMINANTS IN DRINKING WATER — ECOWATER SYSTEMS, INC. ERO-R450E WATER TREATMENT SYSTEM |
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The EcoWater Systems ERO-R450E POU drinking water treatment system was tested for removal of aldicarb, benzene, cadmium, carbofuran, cesium, chloroform, dichlorvos, dicrotophos, fe...
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ETV REPORT: REMOVAL OF CHEMICAL CONTAMINANTS IN DRINKING WATER — PALL/KINETICO PUREFECTA DRINKING WATER TREATMENT SYSTEM |
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The Pall/Kinetico Purefecta™ POU drinking water treatment system was tested for removal of aldicarb, benzene, cadmium, carbofuran, cesium, chloroform, dichlorvos, dicrotophos,...
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ETV REPORT: REMOVAL OF CHEMICAL CONTAMINANTS IN DRINKING WATER – WATTS PREMIER INC. WP-4V DRINKING WATER TREATMENT SYSTEM |
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The Watts Premier WP-4V POU drinking water treatment system was tested for removal of aldicarb, benzene, cadmium, carbofuran, cesium, chloroform, dichlorvos, dicrotophos, fenamipho...
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EVALUATING MERCURY TRANSFORMATION MECHANISMS IN A LABORATORY-SCALE COMBUSTION SYSTEM. (R827649) |
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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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EVALUATING PREDICTIVE ERRORS OF A COMPLEX ENVIRONMENTAL MODEL USING A GENERAL LINEAR MODEL AND LEAST SQUARE MEANS |
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A General Linear Model (GLM) was used to evaluate the deviation of predicted values from expected values for a complex environmental model. For this demonstration, we used the def...
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EVALUATING REGIONAL PREDICTIVE CAPACITY OF A PROCESS-BASED MERCURY EXPOSURE MODEL, REGIONAL-MERCURY CYCLING MODEL (R-MCM), APPLIED TO 91 VERMONT AND NEW HAMPSHIRE LAKES AND PONDS, USA |
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Regulatory agencies must develop fish consumption advisories for many lakes and rivers with limited resources. Process-based mathematical models are potentially valuable tools for...
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EVALUATING THE REGIONAL PREDICTIVE CAPACITY OF A PROCESS-BASED MERCURY EXPOSURE MODEL (R-MCM) FOR LAKES ACROSS VERMONT AND NEW HAMPSHIRE, USA |
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Regulatory agencies are confronted with a daunting task of developing fish consumption advisories for a large number of lakes and rivers with little resources. A feasible mechanism...
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EVALUATION AND USE OF STAND-ALONE COMMERCIAL PHOTOLYTIC CONVERTERS FOR CONVERSION OF NO2 AND NO |
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Two types of stand-alone photolytic converters of nitrogen dioxide (NO2) to nitric oxide (NO) are now commercially available for use with NO, ozone (O3) chemiluminescence detecto...
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EVALUATION OF A COASTAL GOLF COMPLEX AS A LOCAL AND WATERSHED SOURCE OF BIOAVAILABLE |
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Lewis, Michael A., Robert L. Quarles, Darrin D. Dantin and James C. Moore. 2004. Evaluation of a Coastal Golf Complex as a Local and Watershed Source of Bioavailable Contaminants. ...
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EVALUATION OF A NON-LETHAL SAMPLING TECHNIQUE FOR THE MEASUREMENT OF MERCURY (HG) CONCENTRATIONS AND STABLE-NITROGEN (15N/14N) ISOTOPE RATIOS IN LARGE MOUTH BASS (MICROPTERUS SALMOIDES) |
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Contaminant bioaccumulation studies often rely on fish muscle filets as the tissue of choice for the measurement of nitrogen stable isotope ratios ( 15N) and mercury (Hg). Lethal ...
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EVALUATION OF BASIS SETS AND THEORETICAL METHODS FOR ESTIMATING RATE CONSTANTS OF MERCURY OXIDATION REACTIONS INVOLVING CHLORINE. (R828168) |
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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 BENTHIC MACROINVERTEBRATE BIOMASS METHODOLOGY. PART 1. LABORATORY ANALYTICAL METHODS |
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Evaluation of analytical methods employed for wet weight (live or preserved samples) of benthic marcoinvertebrates reveals that centrifugation at 140 x gravity for one minute yield...
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EVALUATION OF CHEMICALLY BONDED PHOSPHATE CERAMICS FOR MERCURY STABILIZATION OF A MIXED SYNTHETIC WASTE |
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This experimental study was conducted to evaluate the stabilization and encapsulation technique developed by Argonne National Laboratory, called the Chemically Bonded Phosphate Cer...
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EVALUATION OF DITHIOCARBAMATES AND BETA-DIKETONES AS CHELATING AGENTS IN SUPERCRITICAL FLUID EXTRACTION OF CADMIUM, LEAD, AND MERCURY FROM SOLID 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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EVALUATION OF MER-SPECIFIED REDUCTION OF IONIC MERCURY AS A REMEDIALTOOL OF A MERCURY-CONTAMINATED FRESHWATER POND |
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The potential for mer-mediated reduction/volatilization of ionic mercury as a tool in the decontamination of a freshwater pond was evaluated using laboratory incubations and a micr...
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EVALUATION OF MERCURY SPECIATION AT POWER PLANTS USING SCR AND SNCR CONTROL TECHNOLOGIES |
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The paper describes the impact that selective catalytic reduction (SCR), selective noncatalytic reduction (SNCR), and flue gas-conditioning systems have on total mercury emissions ...
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EVALUATION OF MERCURY SPECIATION AT POWER PLANTS USING SCR AND SNCR NOX CONTROL TECHNOLOGIES |
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The paper describes the impact that selective catalytic reduction (SCR), selective noncatalytic reduction (SNCR), and flue gas-conditioning systems have on total mercury emissions ...
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EVALUATION OF POSSIBLE BIASES IN THE U.S. EPA'S METHOD 101A-MERCURY EMISSIONS FROM STATIONARY SOURCES |
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The U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, has a program to evaluate and standardize source testing methods for hazardous pollutants in...
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EVALUATION OF PROTOCOLS FOR PESTICIDES AND PCB'S IN RAW WASTEWATER |
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The general EPA protocol for screening industrial effluents for priority pollutants (Federal Register 38, No. 75, Part II), has been tested for its applicability to the analysis of...
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EVALUATION OF SENSORY EVOKED POTENTIALS IN LONG EVANS RATS GESTATIONALLY EXPOSED TO MERCURY (HGO) VAPOR. |
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Human exposure to mercury vapor (Hg0) has been reported to result in sensory disturbances. Developmental exposure to toxicants may result in long-lasting changes in neural function...
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EVALUATION OF SENSORY EVOKED POTENTIALS IN LONG-EVANS RATS GESTATIONALLY EXPOSED TO MERCURY (HG) VAPOR |
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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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EVALUATION OF THE EFFECT OF SCR ON MERCURY SPECIATION AND EMISSIONS |
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The paper presents the results of an investigation on the impact that selective catalytic reduction (SCR) has on both the total emissions and the speciation of mercury (Hg). SCR sy...
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EVALUATION OF TRACE ELEMENT RELEASE FROM FLUIDIZED-BED COMBUSTION SYSTEMS |
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The report gives results of an investigation of four trace elements: lead, beryllium, mercury, and fluorine. The chemical fate of minor and trace elements is important in assessing...
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EVALUATION OF TRACE-ELEMENT INTERACTIONS USING CULTURED ALVEOLAR MACROPHAGES |
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It is important to consider the interactions of toxic trace elements in an evaluation of the toxicity of environmental pollutants. The in vitro toxicity screening system, using the...
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EVIDENCE OF AIRBORNE CONTAMINATION OF WESTERN NORTH AMERICAN MOUNTAIN ECOSYSTEMS |
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There is emerging evidence that mountain ecosystems in the western USA are receiving deposition of persistent bioaccumulative toxicants with origins in North America and elsewhere ...
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EXCRETION OF CADMIUM AND MERCURY IN RAT SALIVA |
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The excretion of cadium and mercury in saliva was studied in urethane-anesthetized male rats given single intravenous injections of 109CdCl2 or 203HgCl2 (0.1 or 1.0 mg divalent cat...
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EXPERIMENTAL INVESTIGATION OF MERCURY TRANSFORMATIONS IN PILOT-SCALE COMBUSTION SYSTEMS AND A BENCH-SCALE ENTRAINED FLOW REACTOR. (R827649) |
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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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EXPOSURE ASSESSMENT IMPLICATIONS FOR THE DESIGN AND IMPLEMENTATION OF THE NATIONAL CHILDREN'S STUDY |
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Examining the influence of environmental exposures on various health indices is a critical component of the planned National Children¿s Study (NCS). An ideal strategy for the expos...
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EXTRACTION OF MERCURY FROM GROUNDWATER USING IMMOBILIZED ALGAE |
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Bio-recovery Systems, Inc. conducted a project under the Emerging Technology portion of the United States Environmental Protection Agency's (EPAs) Superfund Innovative Technology E...
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EXTRAPOLATION FROM IN VITRO MECHANISMS TO IN VIVO EFFECTS FOR DEVELOPMENTAL NEUROTOXICOLOGY. |
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Processes that are critical to development of the nervous system can be altered by both genetic and epigenetic factors. Developmental exposure to neurotoxicants can alter these p...
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Evaluation of the Impact of Chlorine on Mercury Oxidation in a Pilot-Scale Coal Combustion--The Effect of Coal Blending |
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Coal-fired power plants are a major source of mercury (Hg) released into the environment and the utility industry is currently investigating options to reduce Hg emissions. The EPA...
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FACTORS AFFECTING COLORED DISSOLVED ORGANIC MATTER IN AQUATIC ENVIRONMENTS OF THE SOUTHEASTERN UNITED STATES |
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The sunlight-absorbing (colored) component of dissolved organic matter (CDOM) in aquatic environments is widely distributed in freshwaters and coastal regions where it influences t...
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FACTORS AFFECTING ENHANCED MERCURY BIOACCUMULATION IN INLAND LAKES OF ISLE ROYALE NATIONAL PARK, USA |
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We investigated factors causing mercury (Hg) concentrations in northern pike to exceed the consumption advisory level in some inland lakes of Isle Royale National Park. Using Hg-cl...
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FACTORS AFFECTING ENHANCED MERCURY BIOACCUMULATION IN INLAND LAKES OF ISLE ROYALE NATIONAL PARK, USA |
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Recent results have shown that 6 of the 43 inland lakes of Isle Royale National Park, the largest island in Lake Superior, contain northen pike with mercury concentrations exceedin...
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FACTORS INFLUENCING MERCURY CONTAMINATION OF WALLEYES IN NORTHERN WISCONSIN LAKES |
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We examined relations between mercury concentrations in walleyes Stizostedion vitreum and the characteristics of clear-water Wisconsin lakes, which spanned a broad range of pH valu...
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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 BIOLOGICAL EFFECTS OF MERCURY INTRODUCED INTO ARTIFICIAL STREAMS |
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Mercuric ion was continuously input to artificial stream channels to provide water concentrations of 0.01, 1.0, and 5.0 micrograms/l. Channel components were periodically sampled f...
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FATE OF TRACE AND MINOR CONSTITUENTS OF COAL DURING GASIFICATION |
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The report gives results of a study of the fate of selected minor and trace elements of Montana lignite and Illinois No. 6 bituminous coals during development of the HYGAS process....
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FIELD ACTIVITIES AND PRELIMINARY RESULTS FROM THE INVESTIGATION OF WESTERN AIRBORNE CONTAMINANTS IN TWO HIGH ELEVATION WATERSHEDS OF ROCKY MOUNTAIN NATIONAL PARK |
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The National Park Service initiated the Western Airborne Contaminants Assessment Project (WACAP) in 2002 to determine if airborne contaminants from long-range transport and/or regi...
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FIELD DEMONSTRATION AND QUALITY ASSURANCE PROJECT PLAN |
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The Demonstration of innovative field devices for the measurement of mercury in soil and sediment is being conducted under the EPA's SITE Program in February 2003 at the United Sta...
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FIELD MEASUREMENT TECHNOLOGY FOR MERCURY IN SOIL AND SEDIMENT METOREX'S X-MET 2000 X-RAY FLUORESENCE TECHNOLOGY |
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Metorex's X-MET 2000 X-ray fluorescence analyzer was demonstrated under the U.S. Environmental Protection Agency Superfund Innovative Technology Evaluation Program in May 2003, at ...
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FIELD MEASUREMENT TECHNOLOGY FOR MERCURY IN SOIL AND SEDIMENT MILESTONE INC.'S DIRECT MERCURY ANALYZER (DMA)-80 |
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Milestone's Direct Mercury Analyzer (DMA-80) was demonstrated under the U.S. Environmental Protection Agency Superfund Innovative Technology Evaluation Program in May 2003 at the O...
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FIELD MEASUREMENT TECHNOLOGY FOR MERCURY IN SOIL AND SEDIMENT MTI INC'S PDV 6000 STRIPPING VOLTAMMETRY |
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Monitoring Technologies International Pty. Ltd. (MTI) has developed a Portable Digital Voltammeter (PDV) designed to identify and measure the concentration of heavy metal ions. MTI...
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FIELD MEASUREMENT TECHNOLOGY FOR MERCURY IN SOIL AND SEDIMENT NITON'S XLI/XLT 700 SERIES X-RAY FLUORESCENCE ANALYZER |
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NITON's XL-700 Series X-ray fluorescence analyzers were demonstrated under the U.S. Environmental Protection Agency Superfund Innovative Technology Evaluation Program in May 2003 a...
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FIELD MEASUREMENT TECHNOLOGY FOR MERCURY IN SOIL AND SEDIMENT OHIO LUMEX'S RA-915+/RP-91C MERCURY ANALYZER |
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Ohio Lumex's RA915+/91 C mercury analyzer was demonstrated under the U.S. Environmental Protection Agency Superfund Innovative Technology Evaluation Program in May 2003, at the Oak...
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FISH TISSUE QUALITY IN NEAR-COASTAL AREAS OF THE GULF OF MEXICO RECEIVING POINT SOURCE DISCHARGES |
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The objective of this study was to determine inorganic and organic contaminant concentrations in edible tissue of fish collected from eight coastal areas receiving wastewater disch...
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FISH TISSUE RESIDUE-BASED TOXICITY REFERENCE VALUES FOR CHLORDANE, DDT, DIELDRIN, ENDRIN, HEXACHLOROBENZENE, MERCURY, AND PCBS FOR PISCIVOROUS WILDLIFE |
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Species-specific toxicity reference values (TRVs)...
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FISH TISSUE RESIDUE-BASED WILDLIFE VALUES FOR PISCIVOUOUS WILDLIFE: CHLORDANE, DDT, DIELDRIN, HEXACHLOROBENZENE |
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Fish tissue residue-based wildlife values were derived for chlordane, DDT, dieldrin, endrin, hexachlorobenzene, mercury and PCBs. Piscivorous wildlife for which these benchmarks we...
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FLAVOR AVERSIONS INDUCED BY CHLORDIMEFORM |
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Chlordimeform is a member of the formamidine class of insecticide/acaricide with many diverse pharmacological actions. Little is known, however, about its behavioral actions, altho...
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FLUE GAS DESULFURIZATION: THE STATE OF THE ART |
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The paper gives results of a review of commercially available flue gas desulfurization (FGD) technologies that have an established record of full-scale performance. (NOTE: Sulfur ...
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FLUE GAS EFFECTS ON A CARBON-BASED MERCURY SORBENT. (R827649) |
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Coal is now the primary source of anthropogenic mercury emissions in the United States, accounting for 46%, or 72 tons/year, of the total U.S. Environmental Protection Agency (E...
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FOAM FLOTATION TREATMENT OF HEAVY METALS AND FLUORIDE-BEARING INDUSTRIAL WASTEWATERS |
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Laboratory studies demonstrated that the floc foam flotation techniques are effective in removing lead, cadmium, mercury, copper, zinc, arsenic, and fluoride from dilute wastewater...
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FOLIAR EXCHANGE OF MERCURY AS FUNCTION OF SOIL AND AIR CONCENTRATION. (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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FORMATION OF REACTIVE GASEOUS MERCURY IN THE ARCTIC: EVIDENCE OF OXIDATION OF HG0 TO GAS-PHASE HG-II COMPOUNDS AFTER ARCTIC SUNRISE |
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We have measured total gaseous mercury concentrations (Hgo) at Point Barrow, Alaska since September 1998 in an effort to determine the geographic extent and reaction mechanism of...
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FUNDAMENTAL SCIENCE AND ENGINEERING OF MERCURY CONTROL IN COAL-FIRED POWER PLANTS |
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The paper discusses the existing knowledge base applicable to mercury (Hg) control in coal-fired boilers and outlines the gaps in knowledge that can be filled by experimentation an...
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GASEOUS ELEMENTAL MERCURY IN THE MARINE BOUNDARY LAYER: EVIDENCE FOR RAPID REMOVAL IN ANTHROPOGENIC POLLUTION |
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In this study, gas-phase elemental mercury (Hg0) and related species (including inorganic reactive gaseous mercury (RGM) and particulate mercury (PHg)) were measured at Cheeka Pe...
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GASEOUS ELEMENTAL MERCURY IN THE MARINE BOUNDARY LAYER: EVIDENCE FOR RAPID REMOVAL IN ANTHROPOGENIC POLLUTION. (R829797) |
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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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GENE-TOX CARCINOGENS AND NON-CARCINOGENS: AN ANALYSIS OF SHORT-TERM BIOASSAYS IN GENETIC TOXICOLOGY |
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The Gene-Tox Carcinogen Data Base is an evaluated source of cancer data on 506 chemicals selected in part for their previous assessment in genetic toxicology bioassays. The data ba...
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GENETIC ENGINEERING OF ESCHERICHIA COLI FOR ENHANCED BIOACCUMULATION OF MERCURY. (R827227) |
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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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GEOCHEMICAL EVOLUTION OF GROUND WATER AND TRANSPORT OF MERCURY AT THE SULPHUR BANK MERCURY MINE SUPERFUND SITE IN NORTHERN CALIFORNIA, USA |
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The Sulphur Bank Mercury Mine, located on the shore of Clear Lake, Lake County, California, is a potential source for a modern-day mercury flux into the local aquatic ecosystem. S...
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GEOCHEMICAL EVOLUTION OF GROUND WATER AND TRANSPORT OF MERCURY AT THE SULPHUR BANK MERCURY SUPERFULD SITE IN NORTHERN CALIFORNIA |
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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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GEOCHEMICAL FACTORS GOVERNING METHYL MERCURY PRODUCTION IN MERCURY CONTAMINATED SEDIMENTS |
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Bench scale experiments were conducted to improve our understanding of aquatic mercury transformation processes (biotic and abiotic), specifically those factors which govern the pr...
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GEOCHEMICAL FEATURES OF WATER-ROCK INTERACTIONS AT THE SULPHUR BANK MERCURY MINE, LAKE COUNTY, CALIFORNIA |
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The Sulphur Bank Mercury Mine on the eastern shore of Clear Lake is the source of poor quality acid mine drainage seeping into Clear Lake. Lateral and vertical geochemical trends ...
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GEOGRAPHICAL DISTRIBUTION AND SOURCE TYPE ANALYSIS OF TOXIC METAL EMISSIONS |
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An interim toxic emission inventory has been developed for the conterminous United States. even toxic metals found in lake and coastal waters are included: rsenic, cadmium, chromiu...
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GEOLOGICAL AND ANTHROPOGENIC FACTORS INFLUENCING MERCURY SPECIATION IN MINE WASTES. (R827634) |
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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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GEOSAFE CORPORATION IN SITU VITRIFICATION: INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the findings associated with a Demonstration of the Geosafe Corporation (Geosafe) In Situ Vitrification (ISV) Process. The Geosafe ISV Technology was evaluat...
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GEOSAFE CORPORATION IN SITU VITRIFICATION: INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the findings associated with a Demonstration of the Geosafe Corporation (Geosafe) In Situ Vitrification (ISV) Process. he Geosafe ISV Technology was evaluate...
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GESTATIONAL MERCURY VAPOR EXPOSURE AND DIET CONTRIBUTE TO MERCURY ACCUMULATION IN NEONATAL RATS. |
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Exposure of pregnant Long-Evans rats to elemental mercury (Hg0) vapor resulted in a significant
accumulation of Hg in tissues of neonates. Because elevated Hg in neonatal t...
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GOLF COURSES AS A SOURCE OF COASTAL CONTAMINATION AND TOXICITY: A FLORIDA EXPERIENCE |
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The chemical and biological impacts of two coastal golf courses that receive wastewater spray irrigation were determined during a two-year period. A variety of techniques were used...
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GROUND-WATER FLOW AND WATER-ROCK INTERACTIONS INFLUENCING MERCURY FATE AND TRANSPORT AT THE SULPHUR BANK MERCURY MINE SUPERFUND SITE, CLEARLAKE, CA |
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The U.S. EPA has been conducting a variety of investigations to better understand mercury fate and transport at the Sulphur Bank Mercury Mine (SBMM) Superfund Site, Clear Lake, Cal...
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GUIDELINES FOR MERCURY MEASUREMENTS FROM STATIONARY SOURCES: QUALITY ASSURANCE HANDBOOK, SECTION 3.19 |
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Method 101A (M101A) is similar to Method 101 for the determination of mercury (Hg) from stationary sources. n M101A, however, acidic potassium permanganate solution is used for sam...
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Groundwater Modeling of Mercury Pollution at a Former Mercury Cell Chlor Alkali Facility in Pavlodar City, Kazakhstan |
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In northern Kazakhstan, there is a serious case of mercury pollution near the city of Pavlodar from an old mercury cell chlor-alkali plant. The soil, sediment, and water is severe...
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HEALTH EFFECTS ASSESSMENT FOR MERCURY |
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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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HEALTH EFFECTS OF CHRONIC EXPOSURE TO ARSENIC VIA DRINKING WATER IN INNER MONGOLIA: IV. DISTRIBUTION OF ARSENIC CONCENTRATIONS IN WELLS |
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HEALTH EFFECTS OF CHRONIC EXPOSURE TO ARSENIC VIA DRINKING WATER IN INNER MONGOLIA:
IV. DISTRIBUTION OF ARSENIC CONCENTRATIONS IN WELLS
Zhixiong Ning, B.S., Zhiyi Liu,B....
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HEALTH EFFECTS OF CHRONIC EXPOSURE TO ARSENIC VIA DRINKING WATER IN INNER MONGOLIA: VI. DEVELOPMENTAL EFFECTS. |
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HEALTH EFFECTS OF CHRONIC EXPOSURE TO ARSENIC VIA DRINKING WATER IN INNER MONGOLIA:
VI. DEVELOPMENTAL EFFECTS
Richard K. Kwok, M.S.P.H., Judy L. Mumford, Ph.D., Pauline ...
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HEALTHCARE ENVIRONMENTAL ASSISTANCE RESOURCES: POLLUTION PREVENTION AND COMPLIANCE ASSISTANCE FOR HEALTHCARE FACILITIES |
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This CD ROM is a result of several healthcare guidance documents coming into existence around the same time and the need for one tool where healthcare facilities could have access ...
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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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HOLISTIC APPROACH FOR ASSESSING THE PRESENCE AND POTENTIAL IMPACTS OF WATERBORNE ENVIRONMENTAL CONTAMINANTS |
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As an integral part of our continuing research in environmental quality assessment approaches, we have developed a variety of passive integrative sampling devices widely applicable...
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HOMOGENIZING SLUDGE PRODUCES UNEXPECTED MERCURY RESULTS |
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A method to homogenize sewage sludge prior to analysis for mercury and other trace elements is described....
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HORIZONTAL AND VERTICAL DISTRIBUTIONS OF MERCURY IN 1983 LAKE SUPERIOR SEDIMENTS WITH ESTIMATES OF MERCURY STORAGE AND FLUX |
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Lake Superior sediments have mercury concentrations above background levels at all sites sampled. For those cores which pentetrated the sediment deep enough (the majority of the c...
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HUMAN HEALTH IMPACTS OF EXPOSURE TO POPS |
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The Stockholm Convention on persistent organic pollutants (POPs) was adopted in 2001 to protect human health and the environment from chemicals that are highly toxic, persistent, b...
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HUMAN SCALP HAIR: AN ENVIRONMENTAL EXPOSURE INDEX FOR TRACE ELEMENTS. I. FIFTEEN TRACE ELEMENTS IN NEW YORK, N.Y. (1971-72) |
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Previous studies have revealed that hair trace element concentrations can reflect exposure in cases of frank poisoning and deficiency. Correlations have been found also in some pop...
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HUMAN SCALP HAIR: AN ENVIRONMENTAL EXPOSURE INDEX FOR TRACE ELEMENTS. II. SEVENTEEN TRACE ELEMENTS IN FOUR NEW JERSEY COMMUNITIES (1972) |
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Seventeen trace elements - arsenic (As), barium (Ba), boron (B), cadmium (Cd), chromium (Cr), copper (Cu), Iron (Fe), lead (Pb), lithium (Li), manganese (Mn), mercury (Hg), nickle ...
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HUMAN SCALP HAIR: AN ENVIRONMENTAL EXPOSURE INDEX FOR TRACE ELEMENTS. III. SEVENTEEN TRACE ELEMENTS IN BIRMINGHAM, ALABAMA AND CHARLOTTE, NORTH CAROLINA (1972) |
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Seventeen trace elements - arsenic (As), barium (Ba), boron, (B), cadmium, (Cd), chromium (Cr), copper (Cu), Iron (Fe), lead (Pb), lithium (Li), manganese (Mn), mercury (Hg), nicke...
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HUMAN-ECOSYSTEM INTERACTIONS: THE CASE OF MERCURY |
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Human and ecosystem exposure studies evaluate exposure of sensitive and vulnerable populations. We will discuss how ecosystem exposure modeling studies completed for input into the...
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HYDROGEOLOGICAL AND GEOCHEMICAL FACTORS INFLUENCING MERCURY FATE AND TRANSPORT AT THE SULPHUR BANK MERCURY MINE, LAKE COUNTY, CALIFORNIA |
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Clear Lake, located approximately 150 km north of San Francisco in Lake County, is one of the largest fresh water lakes in the California. Elevated mercury levels were first identi...
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Human - Ecosystem Interactions: The Case of Mercury |
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Human and ecosystem exposure studies evaluate exposure of sensitive and vulnerable populations. We will discuss how ecosystem exposure modeling studies completed for input into the...
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IDENTIFICATION AND DISTRIBUTION OF INORGANIC COMPONENTS IN WATER: WHAT TO MEASURE |
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The chemical forms of inorganic components in water are widely varied and range from simple aquo complexes in solution to complicated silicate minerals in suspension. A variety of ...
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IDENTIFICATION OF COMPONENTS OF ENERGY-RELATED WASTES AND EFFLUENTS |
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A state-of-the-art review on the characterization of organic and elemental substances in energy-related liquid and solid effluents was conducted. Previous and on-going research pro...
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IMMUNOASSAY FIELD SCREENING FOR MERCURY IN SOIL |
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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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IMPACTS OF HISTORIC AND CURRENT-USE CHEMICALS IN WESTERN NATIONAL PARKS |
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The Western Airborne Contaminants Assessment Project (WACAP) is an interagency effort to determine if airborne contaminants such as semi-volatile organic compounds (sacs) and metal...
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IMPACTS OF LAND USE AND PHYSICOCHEMICAL SETTINGS ON AQUEOUS METHYL MERCURY LEVELS IN THE MOBILE-ALABAMA RIVER SYSTEM. (R827168) |
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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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IMPACTS OF MERCURY EXPOSURE ON FREE-RANGING POST-FLEDGED PISCIVOROUS BIRDS |
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Mercury is one of the priority pollutants of concern for several EPA programs, other federal agencies, and state governments. The concern is especially focused on methyl mercury be...
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IMPINGER SOLUTIONS FOR THE EFFICIENT CAPTURE OF GASEOUS MERCURY SPECIES USING DIRECT INJECTION NEBULIZATION INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (DIN-ICP/MS) ANALYSIS |
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Currently there are no EPA reference sampling mehtods that have been promulgated for measuring Hg from coal combustion sources. EPA Method 29 is most commonly applied. The ASTM Ont...
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IMPORTANCE OF ACTIVATED CARBON'S OXYGEN SURFACE FUNCTIONAL GROUPS ON ELEMENTAL MERCURY ADSORPTION |
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The effect of varying physical and chemical properties of activated carbons on adsorption of elemental mercury [Hg(0)] was studied by treating two activated carbons to modify their...
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IMPROVED METHOD FOR RECOVERY OF MRNA FROM AQUATIC SAMPLES AND ITS APPLICATION TO DETECTION OF MER EXPRESSION |
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Previously described methods for extraction of mRNA from environmental samples may preclude detecting transcripts from genes that were present in low abundance in aquatic bacterial...
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IMPROVED PROCEDURE FOR DETERMINING MERCURY EMISSIONS FROM MERCURY CELL CHLOR-ALKALI PLANTS |
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An analytical procedure for determining the mercury emissions from mercury cell-chlor-alkali plants is described. This procedure was developed to correct problems in an analytical ...
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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 HIGH TEMPORAL RESOLUTION ANALYSIS OF ELEMENTAL MERCURY IN NATURAL WATER (R827915) |
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AbstractVolatilization of elemental Hg represents an important Hg flux for many aquatic systems. In order to model this flux accurately, it is necessary to measure elem...
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IN-FLIGHT CAPTURE OF ELEMENTAL MERCURY BY A CHLORINE-IMPREGNATED ACTIVATED CARBON |
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The paper discusses the in-flight capture of elemental mercury (Hgo) by a chlorine (C1)-impregnated activated carbon. Efforts to develop sorbents for the control of Hg emissions ha...
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INDICATORS OF ECOLOGICAL STRESS AND THEIR EXTENT IN THE POPULATION OF NORTHEASTERN LAKES |
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The Environmental Monitoring and Assessment Program (EMAP) surveyed 345 northeastern lakes, during 1991-1996, in the first regional-scale survey to use a probability-based sampling...
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INDICATORS OF ECOLOGICAL STRESS AND THEIR EXTENT IN THE POPULATION OF NORTHEASTERN LAKES: A REGIONAL-SCALE ASSESSMENT |
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One of the Environmental Monitoring and Assessment Program's first projects was a survey of 345 lakes in the eight states of the Northeast, during summers of 1991-1996. This surv...
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INDICATORY FATE STUDY |
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This report is concerned with media disposition of specific priority pollutants. Composite samples were obtained from the influent, effluent, residuals, and air from 12 industrial ...
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INFLUENCE OF PH AND OXIDATION-REDUCTION (EH) POTENTIAL ON THE DISSOLUTION OF MERCURY-CONTAINING MINE WASTES FROM THE SULFUR BANK MERCURY MINE |
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Mine waste rock and roaster tailings were collected from the Sulfur Bank Mercury Mine (SBMM) located in Clearlake Oaks, California. The site has been under investigation as a Compr...
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INFLUENCE OF PH AND OXIDATION-REDUCTION POTENTIAL (EH) ON THE DISSOLUTION OF MERCURY-CONTAINING MINE WASTES FROM THE SULFUR BANK MERCURY MINE |
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This study was undertaken as a part of developing treatment alternatives for waste materials, primarily waste rock and roaster tailings, from sites contaminated with mercury (Hg) m...
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INITIATIVES AND TREATMENT OF MERCURY IN ABANDONED MINES |
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This presentation discusses EPA's research activities and mitigation activities for mercury contaminated mine sites at the International meeting on mercury and artisanal gold minin...
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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 OXFORD X-MTE 3000TX XRF ANALYZER |
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The Elvatech, Ltd. ElvaX (ElvaX) x-ray fluorescence (XRF) analyzer distributed in the United States by Xcalibur XRF Services (Xcalibur), was demonstrated under the U.S. Environment...
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INNOVATIVE TECHNOLOGY VERIFICATION REPORT XRF TECHNOLOGIES FOR MEASURING TRACE ELEMENTS IN SOIL AND SEDIMENT RIGAKU ZSX MINI 11 XRF ANALYZER |
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The Rigaku ZSX Mini II (ZSX Mini II) XRF Services x-ray fluorescence (XRF) analyzer was demon-strated under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Tech...
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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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INNOVATIVE TECHNOLOGY VERIFICATION REPORT XRF TECHNOLOGIES FOR MEASURING TRACE ELEMENTS IN SOIL AND SEDIMENT XCALIBUR ELVAX XRF ANALYZER |
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The Innov-X XT400 Series (XT400) x-ray fluorescence (XRF) analyzer was demonstrated under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation...
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INORGANIC SPECIES IN WATER: ECOLOGICAL SIGNIFICANCE AND ANALYTICAL NEEDS. A LITERATURE REVIEW |
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Representative studies of the environmental significance of inorganic species (as opposed to total-element content) in water are reviewed. The effects of chemical forms on human he...
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INTEGRATED RISK ANALYSIS IN COASTAL ECOSYSTEMS: THE EXAMPLE OF MERCURY |
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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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INTENSIVE ATMOSPHERIC MERCURY MEASUREMENTS AT TERRA NOVA BAY IN ANTARCTICA DURING NOVEMBER AND DECEMBER 2000 |
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It is well known that due to its long atmospheric residence time, mercury is distributed on a global scale and aeolian transport is believed to be the major contributor to mercur...
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INTERACTION BETWEEN METHYL MERCURY AND RADIATION EFFECTS ON NERVOUS SYSTEMS |
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The interaction between methyl mercury and ionizing radiation was investigated in a series of experiments using rats, hamsters, and squirrel monkeys to study the effects produced a...
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INTERACTION OF INORGANIC MERCURY SALTS WITH MODEL AND RED CELL MEMBRANES: IMPORTANCE OF LIPID BINDING SALTS |
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The effect induced by two mercury salts, HgCl2 and Hg(NO3)2, on the thermotropic properties of PS model membranes (multilamellar vesicles) and rat red cell membranes was investigat...
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INTERACTIONS OF CHLORPYRIFOS AND METHYL MERCURY: A MECHANISTIC APPROACH TO ASSESS CHEMICAL MIXTURES |
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The mechanism of interaction between chlorpyrifos, an organophosphate insecticide, and methyl mercury was assessed utilizing the amphipod, Hyalella azteca. Previous studies have d...
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INTERACTIONS OF SOLAR ULTRAVIOLET RADIATION AND DISSOLVED ORGANIC MATTER IN FRESHWATER AND MARINE ENVIRONMENTS |
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Solar radiation provides the primary driving force for the biogeochemical cycles upon which life and climate depend. Recent studies have demonstrated that the absorption of solar r...
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INTERCOMPARISON OF DPASV AND ISE FOR THE MEASUREMENT OF CU COMPLEXATION CHARACTERISTICS OF NOM IN FRESHWATER. (R825395) |
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Complexation by dissolved humic substances has an important influence on
trace metal behavior in natural systems. Unfortunately, few analytical
techniques are available ...
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INTERCOMPARISON STUDY OF ATMOSPHERIC MERCURY MODELS: 1. COMPARISON OF MODELS WITH SHORT-TERM MEASUREMENTS |
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Five regional scale models with a horizontal domain covering the European continent and its surrounding seas, one hemispheric and one global scale model participated in an atmosphe...
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INTERCOMPARISON STUDY OF ATMOSPHERIC MERCURY MODELS: 2. MODELING RESULTS VS. LONG-TERM OBSERVATIONS AND COMPARISON OF COUNTRY ATMOSPHERIC BALANCES |
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Five regional scale models with a horizontal domain covering the European continent and its surrounding seas, two hemispheric and one global scale model participated in the atmosph...
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INTERLABORATORY EVALUATION OF SW-846 METHODS 7470 AND 7471 FOR THE DETERMINATION OF MERCURY IN ENVIRONMENTAL SAMPLES |
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The EPA protocols for SW-846 Methods 7470 and 7471 are cold-vapor atomic absorption spectrometric (CV-AAS) methods for the determination of mercury in aqueous and solid environment...
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INTERLABORATORY STUDY OF THE COLD VAPOR TECHNIQUE FOR TOTAL MERCURY IN WATER |
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The American Society for Testing and Materials (ASTM) and the U.S. Environmental Protection Agency (EPA) conducted a joint study of the cold vapor technique for total mercury in wa...
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INTERNATIONAL APPROACHES TO DEVELOPING STANDARDS FOR NONCRITERIA POLLUTANTS |
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Much of the initial interest in the control of pollutants, both in the United States and abroad, focused on such "traditional" pollutants as sulfur dioxide, particulate matter, Tot...
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INVENTORY OF COMMON LOON, GAVIA IMMER, AND MERCURY DATA COLLECTED IN NEW ENGLAND: A GEOGRAPHIC INFORMATION SYSTEM ANALYSIS |
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The common loon, Gavia immer. suffers adverse health effects following exposure to mercury. This contaminant enters the environment from industrial air emissions, travels through t...
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INVESTIGATING OXIDATION MECHANISMS OF HG0 IN THE FREE TROPOSPHERE AND ITS INFLUENCE ON LONG RANGE MERCURY TRANSPORT |
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In 2000, the US EPA Office of Research and Development (ORD) initiated a study to evaluate the magnitude of long-range transport of mercury through the marine free troposphere to S...
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INVESTIGATING OXIDATION MECHANISMS OF HGO IN THE FREE TROPOSPHERE AND ITS INFLUENCE ON LONG RANGE MERCURY TRANSPORT |
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ORD initiated automated speciated mercury measurements at the NOAA Mauna Loa Observatory (MLO), a high altitude research station (~11,500 feet) in 2001. Mercury monitoring at MLO w...
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INVESTIGATING THE INFLUENCE OF LONG RANGE TRANSPORT ON MERCURY DEPOSITION IN SOUTH FLORIDA |
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In 1999, the US EPA National Exposure Research Laboratory (NERL) through a Regional Applied Research Effort initiated a study to evaluate the magnitude of long-range transport of...
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INVESTIGATION OF SELECTIVE CATALYTIC REDUCTION IMPACT ON MERCURY SPECIATION UNDER SIMULATED NOX EMISSION CONTROL CONDITIONS |
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Selective catalytic reduction (SCR) technology is being increasingly applied for controlling emissions of nitrogen oxides (NOx) from coal-fired boilers. Some recent field and pilot...
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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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IODIDE AEROSOL SORBENTS FOR MERCURY CAPTURE IN COMBUSTION EXHAUSTS |
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Several sorbent processes are being studied for their feasibility for mercury capture. Mercury is different from the other heavy metals as it is not as chemically reactive (due to...
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IRIS TOXICOLOGICAL REVIEW AND SUMMARY DOCUMENTS FOR THALLIUM AND COMPOUNDS |
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Thallium compounds are used in the semiconductor industry, the manufacture of optic lenses and low-melting glass, low-temperature thermometers, alloys, electronic devices, mercury ...
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IRON-REDUCING BACTERIA, NOVEL METHYLATORS OF MERCURY IN PURE CULTURE AND POSSIBLE ACTIVITY IN MERCURY MINE-IMPACTED SEDIMENTS. (R828676C003) |
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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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ISSUES IN MODELING ELEMENTAL MERCURY AIR/WATER EXCHANGE |
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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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ISSUES IN SIMULATING ELEMENTAL MERCURY AIR/WATER EXCHANGE AND AQUEOUS MONOMETHYLMERCURY SPECIATION |
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This presentation focuses on two areas relevant to assessing the global fate and bioavailability of mercury: elemental mercury air/water exchange and aqueous environmental monometh...
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ISSUES RELATED TO SOLUTION CHEMISTRY IN MERCURY SAMPLING IMPINGERS |
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Analysis of mercury (Hg) speciation in combustion flue gases is often accomplished in standardized sampling trains in which the sample is passed sequentially through a series of aq...
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Improved Leach Testing for Evaluating Fate of Mercury and Other Metals from Management of Coal Combustion Residues |
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Coal-fired power plants, the largest domestic source of atmospheric mercury emissions in the U.S., are also a major emission source of nitrogen oxides (NOx), sulfur dioxide (S02), ...
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KINETIC STUDY OF ADSORPTION AND TRANSFORMATION OF MERCURY ON FLY ASH PARTICLES IN AN ENTRAINED FLOW REACTOR |
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Experimental studies were performed to investigate the interactions of elemental mercury vapor with entrained fly ash particles from coal combustion in a flow reactor. The rate of ...
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KINETICS OF HETEROGENEOUS MERCURY REACTIONS WITH TIO2 SORBENT PARTICLES: IN SITU MERCURY CAPTURE METHODOLOGIES |
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A system consisting of a photochemical reaction was used to evaluate the kinetic parameters, such as reaction order and rate constant for the elemental mercury uptake by TiO2 in th...
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KINETICS OF INTRAVENOUSLY ADMINISTERED METHYLMERCURY IN MAN |
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This report describes the results of kinetic studies in human subjects after a single parental administration of tracer doses of methylmercury. The analysis of data suggest that th...
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LABORATORY EVALUATION OF TUNABLE ATOMIC LINE MOLECULAR SPECTROMETERS FOR BENZENE ANALYSIS |
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Tunable Atomic Line Molecular Spectroscopy (TALMS) is a high resolution, differential absorption technique used in the ultraviolet region. Under Interagency Agreements EPA-80-D-X10...
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LAGRANGIAN MODELING OF MERCURY AIR EMISSION, TRANSPORT AND DEPOSITION: AN ANALYSIS OF MODEL SENSITIVITY TO EMISSIONS UNCERTAINTY |
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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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LAKE MICHIGAN 1994-1996 SURFICIAL SEDIMENT MERCURY |
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See the published paper for the abstract....
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LAKE MICHIGAN 1994-1996 SURFICIAL SEDIMENT MERCURY |
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Regional atmospheric fluxes account for roughly 50 percent of the total mercury flux....
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LAKE MICHIGAN MASS BALANCE STUDY: PROGNOSIS FOR PCBS |
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The Lake Michigan Mass Balance Study was conducted to measure and model nutrients, atrazine, PCBs, trans-nonachlor, and mercury to gain a better understanding of the transport and ...
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LAKE MICHIGAN URBAN AIR TOXICS STUDY DESIGN AND OVERVIEW |
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During the summer of 1991, an air toxics monitoring program was conducted in the lower Lake Michigan area. his study was designed to take advantage of the extensive meteorological ...
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LAND REBORN: TOOLS FOR THE 21ST CENTURY/NATIONAL ASSOCIATION OF ABANDONED MINE LAND PROGRAMS |
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Mining activities in the US (not counting coal) produce 1-2 billion tons of mine waste annually. Since many of the ore mines involve sulfide minerals, the production of acid mine d...
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LEVEL AND EXTENT OF MERCURY CONTAMINATION IN OREGON LOTIC FISH |
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As part of the U.S. EPA's EMAP Oregon Pilot project, we conducted a probability survey of 154 Oregon streams and rivers to assess the spatial extent of mercury (Hg) contamination i...
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LEVEL AND EXTENT OF MERCURY CONTAMINATION IN OREGON, USA, LOTIC FISH |
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Because of growing concern with widespread mercury contamination of fish tissue, we sampled 154 streams and rivers throughout Oregon using a probability design. To maximize the sam...
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LIGHT ENHANCEMENT OF MERCURY EMISSIONS: IN SITU OCCURRENCE. (R825249) |
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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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LIGHT ENHANCEMENT OF MERCURY EMISSIONS: IN SITU OCCURRENCE. (R825249) |
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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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LIMNOLOGY OF MICHIGAN'S NEARSHORE WATERS OF LAKES SUPERIOR AND HURON |
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Limnological assessments, including water and sediment chemistry, bacterial densities, zoo- and phyto-plankton and benthic macroinvertebrate community structure, and fish contamina...
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LINKING BIOACCUMULATED MERCURY AND WILDLIFE POPULATION EFFECTS |
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As part of the Office of Research and Development, National Health and Environmental Effects Research Laboratory of the US Environmental Protection Agency (EPA), the Atlantic Ecolo...
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LINKING GREAT WATERSHEDS AND RIVERS TO FORECAST THE IMPACT OF CONTAMINANT STRESSORS ON LARGE RECEIVING WATERS |
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Contaminated sediments are pervasive within the waters of the nation. A number of contaminants are bioaccumulative and are an unacceptable risk to the ecosystem, including humans. ...
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LINKING GREAT WATERSHEDS WITH LAKE MICHIGAN: THE LAKE MICHIGAN MASS BALANCE STUDY |
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An overview of the Lake Michigan Mass Balance Study -- which is focusing on atrazine, PCBs, nutrients, suspended solids, trans-nonachlor, and mercury. The relative contribution of ...
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LP/LIF STUDY OF THE FORMATION AND CONSUMPTION OF MERCURY (I) CHLORIDE: KINETICS OF MERCURY CHLORINATION |
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The laser photolysis/laser induced flourescence (LP/LIF) technique has been applied to studies of gas-phase mercury (Hg) chlorination. Mercury (I) chloride (HgCl) has been detected...
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MACROSCOPIC AND MICROSCOPIC OBSERVATIONS OF PARTICLE-FACILITATED MERCURY TRANSPORT FROM NEW IDRIA AND SULPHUR BANK MERCURY MINE TAILINGS (R827634) |
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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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MANUAL SPECIATION METHODS FOR MEASURING ATMOSPHERIC MERCURY: APPLICATIONS/IMPLEMENTATION |
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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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MATERNAL-FETAL TISSUE LEVELS OF SIXTEEN TRACE ELEMENTS IN EIGHT COMMUNITIES |
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The developing fetus probably represents one of the most vulnerable subgroups of the general population to the toxic effects of trace elements. There have been numerous reports of ...
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MEASUREMENT AND MODELING OF ATMOSPHERIC MERCURY SPECIES AND RELATED POLLUTANTS IN SOUTH FLORIDA FROM 2000-2005 |
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In 2000, Florida DEP, USEPA, and Broward EPD located an atmospheric mercury monitoring site adjacent to the Everglades in southeast Florida for the purposes of field testing the Te...
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MEASUREMENT OF FUGITIVE EMISSIONS AT A BIOREACTOR LANDFILL |
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This report focuses on three field campaigns performed in 2002 and 2003 to measure fugitive emissions at a bioreactor landfill in Louisville, KY, using an open-path Fourier transfo...
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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 MERCURY IN CHINESE UTILITY COAL |
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The paper gives results of analyzing representative samples of 20 Chinese utility coals for mercury content, and proximate, ultimate, and heating values. The data for these bitumi...
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MEASUREMENT OF MERCURY IN SOLID ENVIRONMENTAL SAMPLES BY ICPMS WITH ON-LINE SAMPLE ASHING AND HG CONCENTRATION USING AN AUTOMATIC MERCURY ANALYZER (TM) |
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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 MERCURY SPECIATION IN SUBSTRATE. (R825249) |
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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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MEASUREMENT OF TOTAL SITE MERCURY EMISSIONS FROM A CHLOR-ALKALI PLANT USING OPEN-PATH UV-DOAS |
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In December 2003, the EPA promulgated the National Emission Standard for Hazardous Air Pollutants for mercury cell chlor-alkali plants. In February 2004, the Natural Resources Def...
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MEASURING METAL SULFIDE COMPLEXES IN OXIC RIVER WATERS WITH SQUARE WAVE VOLTAMMETRY. (R825395) |
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A sulfide identification protocol was developed to quantify specific metal
sulfides that could exist in river water. Using a series of acid additions,
nitrogen purges, a...
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MERCURIC CHLORIDE CAPTURE BY ALKALINE SORBENTS |
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The paper gives results of bench-scale mechanistic studies of mercury/sorbent reactions that showed that mercuric chloride (HgC12) is readily adsorbed by alkaline sorbents, which m...
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MERCURY ACCUMULATION IN SNAPPING TURTLES |
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Poster presentation at a scientific meeting...
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MERCURY AND NITROGEN STABLE ISOTOPES IN MINK |
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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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MERCURY AND STABLE ISOTOPE IN MINK |
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Examination of aquatic dependent wildlife has been used to assess the extent of environmental contamination by pesticides, metals and industrial compounds. In northeastern United S...
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MERCURY AND STABLE ISOTPOES OF CARBON AND NITROGEN IN MINK |
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The total mercury concentrations, δ15N and δ13C in tissues of mink (Mustela vison) captured in Rhode Island during winters of the years 1999-2004 showed samples to be statisticall...
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MERCURY BINDING CONSTANTS FOR DISSOLVED ORGANIC CARBON ISOLATES FROM THE FLORIDA EVERGLADES. (R827631) |
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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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MERCURY BIOMAGNIFICATION IN SOUTH DAKOTA LIVESTOCK PONDS ON THE CHEYENNE RIVER SIOUX RESERVATION |
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Portions of the data presented here is in the March 2005 Mercury Ruling published by USEPA air program. It is raw data that was plugged into models completed by USEPA ORD scientis...
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MERCURY BIOTRANSFORMATIONS AND THEIR POTENTIAL FOR REMEDIATION OF MERCURY CONTAMINATION |
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Bacterially mediated ionic mercury reduction to volatile Hg was shown to play an important role in the geochemical cycling of mercury in a contaminated freshwater pond. his process...
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MERCURY CAPTURE ON COAL COMBUSTION FLY ASH. (R827649) |
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A study was performed at the Energy and Environmental Research Center (EERC) to test the hypotheses that (1) different carbon types contained in coal combustion fly ash have var...
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MERCURY CEMS: TECHNOLOGY UPDATE |
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The paper reviews the technologies involved with continuous emission monitors (CEMs) for mercury (Hg) which are receiving incresed attention and focus. Their potential use as a com...
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MERCURY CEMS: TECHNOLOGY UPDATE EPA/600/A-01/036 |
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The paper reviews the technologies involved with continuous emission monitors (CEMs) for mercury (Hg) which are receiving incresed attention and focus. Their potential use as a com...
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MERCURY CONCENTRATION IN FISH FROM STREAMS AND RIVERS THROUGHOUT THE WESTERN UNITED STATES |
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We collected and analyzed 2,707 large fish from 626 stream/river sites in 12 western U.S. states using a probability design to assess the regional distribution of whole fish mercur...
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MERCURY CONCENTRATION IN FISH FROM STREAMS/RIVERS THROUGHOUT THE WESTERN UNITED STATES |
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We collected 2,707 fish from 626 stream/river sites in 12 western USA states using a probability design to assess the spatial extent of whole fish mercury (Hg) concentrations. In a...
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MERCURY CONCENTRATION IN FISH TISSUE THROUGHOUT 12 WESTERN STATES IN THE USA |
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abstract/abstract...
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MERCURY CONCENTRATION IN FROZEN WHOLE-FISH HOMOGENATES IS INSENSITIVE TO HOLDING TIME |
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Current recommended holding times for the analysis of total mercury (Hg) in fish tissue ranges from 28 to 180 days. In 2006, we evaluated the effect of an extended holding time on ...
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MERCURY CONCENTRATION IN LOTIC FISH TISSUE ACROSS THE WESTERN UNITED STATES |
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abstract/abstract...
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MERCURY CONCENTRATIONS IN DATED LAKE MICHIGAN SEDIMENT CORES |
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This presentation will include a discussion of total mercury concentrations in dated sediment cores from Lake Michigan....
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MERCURY CONCENTRATIONS IN MUSCLE OF GAMEFISH FROM LAKE MEAD |
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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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MERCURY CONCENTRATIONS IN SALMONIDS FROM WESTERN U.S. NATIONAL PARKS AND RELATIONSHIPS WITH AGE AND MACROPHAGE AGGREGATES |
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Mercury accumulation in aquatic foodwebs and its effects on aquatic biota are of growing concern both for the health of the fish and the piscivores that prey upon them. This is of ...
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MERCURY CONCENTRATIONS IN SEDIMENT, WATER AND BIOTA COLLECTED FROM NEAR-COASTAL AREAS IMPACTED BY COMMON ESTUARINE STRESSORS |
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Mercury concentrations in non-commercial organisms indigenous to the Gulf of Mexico are not well characterized particularly when compared to potential sources. In response to this ...
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MERCURY CONCENTRATIONS IN SKELETAL MUSCLE OF FISH FROM LAKE MEAD, USA, RELATED TO FISH SIZE, CONDITION, TROPHIC LEVEL, LOCATION, AND CONSUMPTION RISK |
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In this first large-scale study of mercury (Hg) in Lake Mead, USA, the nation's largest man-
made reservoir, total-Hg concentrations were determined in the skeletal muscle of 3...
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MERCURY CONTAMINATION ASSESSMENT AND TESTS FOR MITIGATION OF CONTAMINATED RESERVOIR SEDIMENTS IN THE LOWER ST. LOUIS RIVER |
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Observatioins of mercury contaminated fish in the St. Louis River estuary and knowledge of past mercury discharges into the St. Louis River which occurred upstream (at Cloquet, MN)...
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MERCURY CONTAMINATION OF SUBSISTENCE FISHERIES ON TRIBAL LANDS: A PARTNERSHIP OF ORD, REGION 8 AND CHEYENNE RIVER SIOUX RESERVATION |
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In a prior collaborative 3 year study with the Cheyenne River Sioux Tribe Department of Environmental Protection (CRST DEP), and the Agencies' Environmental Response Team, RegionVI...
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MERCURY CONTAMINATION OF THE LOWER ST. LOUIS RIVER: WAYS AND MEANS FOR MITIGATION |
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Observations of mercury-contaminated fish in the St. Louis River Estuary and knowledge of past mercury discharges into the river which occurred upstream (mainly at Cloquet, MN), pr...
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MERCURY CONTAMINATION STANDARDS FOR MARINE ENVIRONMENTS |
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Selected technical literature on biological and ecological effects of mercury compounds on marine and estuarine biota is reviewed. Potential and actual hazards to public health thr...
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MERCURY CONTENT AND SPECIATION IN THE PLANKTON AND BENTHOS OF LAKE SUPERIOR. (R827629) |
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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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MERCURY CONTRIBUTIONS TO THE ENVIRONMENT FROM HISTORIC MINING PRACTICES |
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Significant quantities of mercury have been released to the environment as a result of historic precious metal mining. Many gold and silver deposits are enriched in mercury, whic...
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MERCURY CONTROL FOR COAL-FIRED POWER PLANTS |
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There are many sources of natural and anthropogenic mercury emissions, but combustion of coal is known to be the major anthropogenic source of mercury (Hg) emissions in the U.S. an...
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MERCURY CONTROL TECHNOLOGY--A REVIEW |
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The U.S. Environmental Protection Agency has promulgated the Clean Air Mercury Rule (CAMR) to permanently cap and reduce mercury emissions in the U.S. This rule makes the U.S. the...
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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 DEPOSITIOIN AND WATER QUALITY TRENDS IN THE UPPER MIDWEST, USA |
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Total wet mercur deposition was monitored weekly at six Upper-Midwest USA sites for a period of six years, 1990-95, to assess temporal and spatial pattern, and contributions to sur...
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MERCURY DEPOSITION AND LAKE QUALITY TRENDS |
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Watershed factors influence the differing trends in mercury residue levels. Fish mercury concentrations show positive correlations with water color, methylmercury concentrations, ...
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MERCURY DEPOSITION AND LAKE QUALITY TRENDS IN MINNESOTA |
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Mercury wet deposition was monitored at six Upper Midwest sites for a period of six years, 1990-1995. The three northern-most sites had significantly less mercury deposition than ...
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MERCURY DEPOSITION AND WATER QUALITY IN THE UPPER MIDWEST, USA |
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Total wet mercury deposition was monitored weekly at six Upper-Midwest, USA sites for a period of six years, 1990-195, to assess temporal and spatial patterns, and contributions to...
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MERCURY DEPOSITION AND WATER QUALITY TRENDS IN THE UPPER MIDWEST, USA |
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Watershed factors influence the differing trends in mercury residue levels. Fish mercury concentrations show positive correlations with water color, methylmercury concentrations, ...
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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 EMISSIONS FROM A HAZARDOUS WASTE INCINERATOR EQUIPPED WITH A STATE-OF-THE-ART WET SCRUBBER |
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Over a six-week period, 11 tests were performed at the U.S. EPA Incineration Research Facility (IRF) in Jefferson, Arkansas to evaluate the fate of trace metals fed to a rotary kil...
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MERCURY EMISSIONS FROM BRAKE WEAR ASSOCIATED WITH ON-ROAD VEHICLES |
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This paper will focus on brake wear emissions of mercury and trace metals collected from 16 in-use light-duty vehicles (14 gasoline and 2 diesel) on a chassis dynamometer over the ...
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MERCURY EMISSIONS FROM GASOLINE AND DIESEL POWERED ON-ROAD VEHICLES |
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Measurements of elemental gaseous mercury (Hg0), divalent reactive gaseous mercury (RGM), and particulate phase mercury (Hg(p)) were made from 14 gasoline and 2 diesel powered in-u...
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MERCURY EMISSIONS. (R827649) |
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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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MERCURY FATE AND TRANSPORT IN GROUND WATER AT AN ABANDONED MINE |
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Clear Lake, one of California's largest freshwater lakes located approximately 150 km north of San Francisco, is an important natural, economic, and cultural resource for the surro...
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MERCURY FIN CLIPS AS AN ASSESSMENT METHOD FOR PREDICTING MUSCLE TISSUE CONCENTRATIONS IN LARGE MOUTH BASS |
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Poster presentation at a scientific meeting...
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MERCURY HEALTH EFFECTS UPDATE: HEALTH ISSUE ASSESSMENT |
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This report reviews and evaluates the scientific information on the potential health effects from mercury exposure, with emphasis on those effects associated with human chronic inh...
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MERCURY IN 1987-1990 GREEN BAY, LAKE MICHIGAN SURFICIAL SEDIMENTS |
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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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MERCURY IN AN INSECTIVOROUS BIRD SPECIES |
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Mercury distributions within ecosystems must be examined to determine exposure and risk to wildlife in specific areas. In the current study, we examined exposure and uptake of mer...
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MERCURY IN AND FLUXES TO LAKE MICHIGAN SURFICIAL SEDIMENTS |
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Sediment samples were collected from Lake Michigan between 1994 and 1996. One purpose of the coring was to define the horizontal distribution of mercury in the surficial 1 cm of se...
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MERCURY IN AND FLUXES TO LAKE MICHIGAN SURFICIAL SEDIMENTS |
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Sediment samples were collected from Lake Michigan between 1994 and 1996. Mercury concentrations in surficial sediment ranged between 2 and 260 ng/g with a mean and median of 78 an...
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MERCURY IN CRUDE OIL PROCESSED IN THE UNITED STATES (2004) |
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The mean and range of concentrations of mercury in crude oil processed in the U.S. were investigated using two analytical methods. The sample ensemble consisted of 329 samples fro...
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MERCURY IN FIN CLIPS AS AN ASSESSMENT METHOD FOR PREDICTING MUSCLE TISSUE MERCURY CONCENTRATIONS IN LARGEMOUTH BASS |
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Poster Presentation at a scientific conference...
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MERCURY IN FISH TISSUE ACROSS THE WESTERN UNITED STATES: IMPLICATIONS OF SELENIUM INTERACTIONS |
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We collected 2,707 fish from 626 stream/river sites in 12 western USA states using a probability design to assess the spatial extent of whole fish mercury (Hg) concentrations. In a...
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MERCURY IN LAKE MEAD FISH: A SUMMARY |
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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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MERCURY IN LAKE MICHIGAN ECOSYSTEM COMPONENTS |
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Mercury is a toxic bioaccumulative substance in aquatic ecosystems. National fish advisories for mercury increased 115% from 1993 to 2001 and fish consumption is now a major health...
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MERCURY IN METAL ORE DEPOSITS: AN UNRECOGNIZED, WIDESPREAD SOURCE TO LAKE SUPERIOR SEDIMENTS, CONTRIBUTION #1072 |
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Mining operations have worked the rich mineral resources of the Lake Superior Basin for over 150 years, leaving industrially impacted regions with tailing piles and smelters. In La...
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MERCURY IN MINK IN RHODE ISLAND |
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Tissues of mink (Mustela vison) collected from Rhode Island sites during winters of 1999-2002 were analyzed for mercury and stable isotopes of nitrogen and carbon to determine the ...
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MERCURY IN PETROLEUM AND NATURAL GAS: ESTIMATION OF EMISSIONS FROM PRODUCTION PROCESSING, AND COMBUSTION: PROJECT REPORT/SUMMARY |
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NRMRL-RTP-221 Wilhelm, S.M. Mercury in Petroleum and Natural Gas: Estimation of Emissions from Production Processing, and Combustion. 07/19/2001
The report gives results of an...
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MERCURY IN PETROLEUM AND NATURAL GAS: ESTIMATION OF EMISSIONS FROM PRODUCTION, PROCESSING, AND COMBUSTION |
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Mercury is a trace component of all fossil fuels including natural gas, gas condensates, crude oil, coal, tar sands and other bitumens. The use of fossil hydrocarbons as fuels prov...
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MERCURY IN PETROLEUM AND NATURAL GAS: ESTIMATION OF EMISSIONS FROM PRODUCTION, PROCESSING, AND COMBUSTION |
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The report gives results of an examination of mercury (Hg) in liquid and gaseous hydrocarbons that are produced and/or processed in the U.S. The Hg associated with petroleum and na...
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MERCURY IN SCALES AS AN ASSESSMENT METHOD FOR PREDICITING MUSCLE TISSUE CONCENTRATIONS IN LARGE MOUTH BASS |
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Poster Presentation at a scientific meeting...
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MERCURY IN SEDIMENT AND FISH FROM NORTH MISSISSIPPI LAKES. |
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Sediments and/or fish were collected from Sardis, Enid and Grenada Lakes, which are located in three different watersheds in North Mississippi, in order to assess mercury contamina...
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MERCURY IN SEDIMENTS AND FISH FROM NORTH MISSISSIPPI LAKES AND SUBSEQUENT HUMAN HAZARD EVALUATION |
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Sediments and/or fish were collected from Sardis, Enid and Grenada Lakes, which are located in three different watersheds in North Mississippi, in order to assess mercury contamina...
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MERCURY IN SEDIMENTS AND FISH FROM NORTH MISSISSIPPI LAKES AND SUBSEQUENT HUMAN HAZARD EVALUATION (POSTER SESSION) |
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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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MERCURY IN STAMP SAND DISCHARGES: IMPLICATIONS FOR LAKE SUPERIOR MERCURY CYCLING |
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Approximately a half billion tons of waste rock from the extraction of native copper and silver ores was discharged into the Lake Superior basin. Stamping was the method of choice...
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MERCURY IN THE CHESAPEAKE BAY. (R825245) |
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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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MERCURY IN THE ENVIRONMENT |
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This presentation was a general overview of mercury in the environment presented to the Georgia Science Teachers Association Conference which was held in Athens, GA, in February 20...
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MERCURY IN THE ENVIRONMENT: SOURCES, PATHWAYS, AND FATES. (R827168) |
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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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MERCURY IN THE ST. LOUIS RIVER, MISSISSIPPI RIVER, CRANE LAKE, AND SAND POINT LAKE: CYCLING, DISTRIBUTION AND SOURCES |
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Recent surveys of mercury contamination in fish have led to an increasing awareness of the problem and have prompted widespread fish consumption advisories in 26 states (including ...
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MERCURY IN VEGETATION AND LAKE SEDIMENTS FROM THE U.S. ARCTIC |
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Global atmospheric concentrations of mercury (Hg) appear to be increasing and with it the potential for ecosystem exposure and ecological effects. rom 1990 to 1993 the authors exam...
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MERCURY LEVELS IN FISH FROM THE UPPER PENINSULA OF MICHIGAN (ELS SUBREGION 2B) IN RELATION TO LAKE ACIDITY |
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The accumulation of mercury by fish and the potential human health effects of eating mercury-contaminated fish have been well documented. owever, elevated mercury concentrations in...
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MERCURY MASS BALANCES: A CASE STUDY OF TWO NORTH DAKOTA POWER PLANTS. (R827649) |
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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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MERCURY MASS DISTRIBUTION DURING LABORATORY AND SIMULATED IN-SITU OIL SHALE RETORTING |
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Total mercury mass in oil shale retort offgas was quantified in a series of laboratory retorting experiments and in a simulated modified in-situ (MIS) retorting experiment. Accurat...
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MERCURY MEASUREMENTS FOR SOLIDS MADE RAPIDLY, SIMPLY, AND INEXPENSIVELY |
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While traditional methods for determining mercury in solid samples involve the use of aggressive chemicals to dissolve the matrix and the use of other chemicals to properly reduce ...
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MERCURY MEASUREMENTS FOR SOLIDS MADE RAPIDLY, SIMPLY, AND INEXPENSIVELY |
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While traditional methods for determining mercury in solid samples involve the use of aggressive chemicals to dissolve the matrix and the use of other chemicals to properly reduce ...
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MERCURY MEASUREMENTS USING DIRECT-ANALYZER METHODOLOGY |
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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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MERCURY MEASUREMENTS USING DIRECT-ANALYZER METHODOLOGY |
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Under EPA's Water Quality Research Program, exposure studies are needed to determine how well control strategies and guidance are working. Consequently, reliable and convenient tec...
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MERCURY METHYLATION BY DESULFOVIBRIO DESULFURICANS ND132 IN THE PRESENCE OF POLYSULFIDES. (R824778) |
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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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MERCURY MODELING AND MEASUREMENTS AND THEIR SOURCE CONTROL IMPLICATIONS |
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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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MERCURY MULTI-YEAR PLAN |
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A 1997 EPA Mercury Study Report to Congress discussed the magnitude of mercury emissions in the United States, and concluded that a plausible link exists between human activities t...
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MERCURY OXIDATION PROMOTED BY A SELECTIVE CATALYTIC REDUCTION CATALYST UNDER SIMULATED POWDER RIVER BASIN COAL COMBUSTION CONDITIONS |
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A bench-scale reactor consisting of a natural gas burner and an electrically heated reactor housing a selective catalytic reduction (SCR) catalyst was constructed for studying elem...
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MERCURY PARTITIONING, DEPOSITION, AND SOURCES IN LAKES OF THE UPPER GREAT LAKES |
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Mercury concentrations and depositions for northeastern Minnesota were measured in precipitation to investigate depositional trends, relationships, with major cations and anions, a...
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MERCURY REACTIONS IN THE PRESENCE OF CHLORINE SPECIES: HOMOGENOUS GAS PHASE AND HETEROGENOUS GAS-SOLID PHASE |
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The kinetics of mercury chlorination (with HC1) were studied using a flow reactor system with an on-line Hg analyzer and spciation sampling using a set of impingers. Kinetic param...
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MERCURY REDUCTION IN PRODUCTS AND PROCESSES: A REVIEW OF THE ELECTRICAL AND ELECTRONIC INDUSTRIES |
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The electrical and electronics industries have significantly reduced the amount of mercury from various products and processes. owever, the unique electromechanical and photoelectr...
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MERCURY RESEARCH STRATEGY |
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The U.S. Environmental Protection Agency's (EPA's) Office of Research and Development (ORD) is pleased to announce the availability of its Mercury Research Strategy. This strateg...
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MERCURY RESEARCH STRATEGY (WORKSHOP REVIEW DRAFT) |
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The Mercury Research Strategy describes a research program that provides information, methods, models, and data to address key scientific questions of greatest concern to EPA, redu...
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MERCURY RESEARCH STRATEGY. |
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The USEPA's ORD is pleased to announce the availability of its Mercury Research Strategy. This strategy guides ORD's mercury research program and covers the FY2001-2005 time frame....
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MERCURY RESIDUES IN SOIL AROUND A LARGE COAL-FIRED POWER PLANT |
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Seventy soil samples were collected on a radial grid around the Four Corners power plant. The soil samples were analyzed for total mercury using a Zeeman atomic absorption spectrop...
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MERCURY RISK MANAGEMENT IN LIVESTOCK PONDS ON THE CHEYENNE RIVER SIOUX RESERVATION |
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In a prior collaborative 3 year study with the Cheyenne River Sioux Tribe Department of Environmental Protection (CRST DEP), and the Agencies' Environmental Response Team, RegionVI...
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MERCURY SEPARATION FROM POLLUTANT WATER USING ZEOLITES |
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Arsenic is known to be a hazardous contaminant in drinking water that causes arsenical dermatitis and skin cancer. In the present work, the potential use of a variety of synthetic...
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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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MERCURY SPECIATION AND CAPTURE |
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In December 2000, the U.S. Environmental Protection Agency (USEPA) announced its intent to regulate mercury emissions from coal-fired electric utility steam generating plants. Maxi...
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MERCURY SPECIATION BY X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY AND SEQUENTIAL CHEMICAL EXTRACTIONS: A COMPARISON OF SPECIATION METHODS (R827634) |
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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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MERCURY SPECIATION IN COMBUSTION SYSTEMS: STUDIES WITH SIMULATED FLUE GASES AND MODEL FLY ASHES |
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The paper gives results of a bench-scale study of the effects of flue gas and fly ash parameters on the oxidation of elemental mercury in simulated flue gases containing hydrogen c...
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MERCURY SPECIATION IN FGD: ASSESSING TRANSPORT AND BIOAVAILABILITY RISK |
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This presentation will discuss the speciation of Hg in FGD materials relative to potential transport and risk issues....
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MERCURY SPECIATION IN THE PRESENCE OF POLYSULFIDES. (R824778,R827915) |
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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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MERCURY SPECIES MEASURED OFF THE ATLANTIC COAST OF SOUTH FLORIDA |
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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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MERCURY STUDY REPORT TO CONGRESS |
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This Mercury Study is a Report to Congress prepared by the U.S. Environmental Protection Agency. It fulfills the requirements of section 112(n)(1)(B) of the Clear Air Act, as amend...
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MERCURY STUDY REPORT TO CONGRESS - BOOK 1 OF 2 |
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Section 112(n)(1)(B) of the Clean Air Act, as amended in 1990, requires the U.S. Environmental Protection Agency to submit a study on atmospheric mercury emissions to Congress. he ...
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MERCURY STUDY REPORT TO CONGRESS - BOOK 2 OF 2 |
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Section 112(n)(1)(B) of the Clean Air Act, as amended in 1990, requires the U.S. Environmental Protection Agency to submit a study on atmospheric mercury emissions to Congress. he ...
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MERCURY TRANSFORMATIONS IN COAL COMBUSTION FLUE GAS. (R827649) |
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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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MERCURY USAGE AND ALTERNATING IN THE ELECTRICAL AND ELECTRONICS INDUSTRIES |
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Many industries have already found alternatives for mercury or have greatly decreased mercury use. owever, the unique electromechanical and photoelectric properties of mercury and ...
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MERCURY USAGE AND ALTERNATIVES IN THE ELECTRICAL AND ELECTRONICS INDUSTRIES |
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Many industries have already found alternatives for mercury or have greatly decreased mercury use. However, the unique electromechanical and photoelectric properties of mercury and...
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MERCURY(II) ADSORPTION FROM WASTEWATERS USING A THIOL FUNCTIONAL ADSORBENT |
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The removal of mercury(II) from wastewaters (coal-fired utility plant scrubber solutions) using a thiol functional organoceramic composite (SOL-AD-IV) is investigated. A simulant i...
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MERCURY(II) PARTITIONING FROM AQUEOUS SOLUTIONS WITH A NEW, HYDROPHOBIC ETHYLENE-GLYCOL FUNCTIONALIZED BIS(METHYLIMIDAZOLIUM) IONIC LIQUID. (R828257) |
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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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MERCURY, LEAD, ARSENIC, AND CADMIUM IN BIOLOGICAL TISSUE. THE NEED FOR ADEQUATE STANDARD REFERENCE MATERIALS |
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The present situation of standard reference materials consisting of plant and animal tissues is examined. A brief literature review presents a cross-section of published data on th...
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MERCURY-EXPOSURE MEASUREMENTS |
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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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METAL BEHAVIOR DURING MEDICAL WASTE INCINERATION |
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Medical waste contains toxic metals such as lead, cadmium, and mercury. onsequently, the incineration of medical waste may result in the emissions of trace metals into the environm...
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METAL BIOACCUMULATION IN FISHES AND AQUATIC INVERTEBRATES: A LITERATURE REVIEW |
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Literature concerning the bioaccumulation of metals by freshwater and marine fishes and invertebrates has been reviewed; metal residue levels are also reported for a few mammals an...
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METALS AND METALLOIDS IN TISSUES OF AMERICAN ALLIGATORS IN THREE FLORIDA LAKES |
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Concentrations of metals and selenium were examined in tissues of American alligators (Alligator mississippiensis) from three lakes in central Florida, in one of which alligators h...
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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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METHOD OF ESTIMATING THE TRAVEL TIME OF NONINTERACTING SOLUTES THROUGH COMPACTED SOIL MATERIAL |
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The pollutant travel time through compacted soil material (i.e., when a pollutant introduced at the top first appears at the bottom) cannot be accurately predicted from the permeab...
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METHYL MERCURY IN LAKE MICHIGAN SURFICIAL SEDIMENTS |
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Sediment samples were collected from Lake Michigan between 1994 and 1996. One purpose of the sampling was to define the horizontal distribution of methyl mercury in the surficial ...
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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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METHYLMERCURY BIOACCUMULATION DEPENDENCE ON NORTHERN PIKE AGE AND SIZE IN TWENTY MINNESOTA LAKES |
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Mercury accumulation in northern pike muscle tissue (fillets) was found to be directly related to fish age and size. Measurements were made on 173 individual northern pike specimen...
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METHYLMERCURY IN MOSQUITOES RELATED TO ATMOSPHERIC MERCURY DEPOSITION AND CONTAMINATION. (R829796) |
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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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METHYLMERCURY OXIDATIVE DEGRADATION POTENTIALS IN CONTAMINATED ANDPRISTINE SEDIMENTS OF THE CARSON RIVER, NEVADA |
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Sediments from mercury-contaminated and uncontaminated reaches of the Carson River, Nevada, were assayed for sulfate reduction, methanogenesis, denitrification, and monomethylmercu...
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MICROBIAL MERCURY TRANSFORMATION IN ANOXIC FRESHWATER SEDIMENTS UNDER IRON-REDUCING AND OTHER ELECTRON ACCEPTING CONDITIONS. (R827168) |
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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 REDUCTION OF IONIC MERCURY FOR THE REMOVAL OF MERCURY FROM CONTAMINATED ENVIRONMENTS |
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A mercury-contaminated freshwater pond, Reality Lake (RL), was investigated in the vicinity of Oak Ridge, Tennessee. he original source of contamination was a nuclear weapons plant...
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MICROBIAL SEQUESTRATION OF LEAD AND OTHER HEAVY METALS |
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Human activity resulting in heavy metal contamination is a worldwide concern. Lead is a potent neurotoxin that can cause heart problems, kidney damage, and mental retardation. Merc...
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MICROFABRICATED ELECTROCHEMICAL ANALYSIS SYSTEM FOR HEAVY METAL DETECTION. (R825511C047) |
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A low power, hand-held system has been developed for the measurement of heavy metal ions in aqueous solutions. The system consists of an electrode array sensor, a high performan...
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MICROWAVE PLASMA DETOXIFICATION PROCESS FOR HAZARDOUS WASTES. PHASE II. SYSTEMS APPLICATION EVALUATION |
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This preliminary report has revealed new information on several highly toxic substances which exist within the continental U.S. for which there is no satisfactory means of disposal...
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MINING IMPACTED PIT LAKES 2000 WORKSHOP PROCEEDINGS: A MULTIMEDIA CD PRESENTATION |
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Anthropogenic releases of mercury to air, water and land have adversely impacted human health and the environment for many years. The USEPA Program Offices including: OPPTS, OAR, O...
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MODELING AQUATIC FATE AND BIOACCUMULATION OF MERCURY IN WATERBODIES: APPLICATION OF THE BASS MODEL TO THE LAKE ONTARIO EXPOSURE FRAMEWORK |
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A modeling approach for waterbody fate and transformation of mercury species was developed for Lake Ontario. This framework includes the estimation of mercury inputs, including th...
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MODELING ASSESSMENT OF TRANSPORT AND DEPOSITION PATTERNS OF MERCURY AIR EMISSIONS FROM THE U.S. AND CANADA |
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In December 1997, the U.S. EPA submitted the Mercury Study Report to Congress which included a regional-scale modeling assessment of the transport and deposition of U.S. air emissi...
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MODELING ATMOSPHERIC MERCURY IN CONTINENTAL AIR MASSES |
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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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MODELING MERCURY BEHAVIOR IN A CONTAMINATED DESERT STREAM AND CONSTRUCTED WETLAND |
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The Steamboat Creek (SBC) watershed is highly contaminated with mercury and is considered the most polluted tributary of the Truckee River. Restoration is being considered at its ...
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MODELING MERCURY CONTROL WITH POWDERED ACTIVATED CARBON |
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This abstract concerns the modeling of a mercury control using powdered activated carbon. The full paper is EIMS number 64020.
For a PDF copy of this abstract, send an email...
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MODELING MERCURY CONTROL WITH POWDERED ACTIVATED CARBON |
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The paper presents a mathematical model of total mercury removed from the flue gas at coal-fired plants equipped with powdered activated carbon (PAC) injection for Mercury control....
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MODELING MERCURY DYNAMICS IN STREAM SYSTEMS WITH WASP7: CHARACTERIZING PROCESSES CONTROLLING SHORT AND LONG TERM RESPONSE |
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Mercury transport through stream ecosystems is driven by a complicated set of transport and transformation reactions operating on a variety of scales in the atmosphere, landscape, ...
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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 FATE IN VARIOUS WATER BODIES |
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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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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 MERCURY IN STREAM ECOSYSTEMS |
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Mercury is a classic multimedia pollutant. Natural and anthropogenic emissions are driven by a complicated set of transport and transformation reactions operating on a variety of s...
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MODELING PROCESSES CONTROLLING MERCURY FATE IN WATERSHEDS RECEIVING ATMOSPHERIC DEPOSITION - COMPARISON OF FIELD SCALE GLEAMS AND WATERSHED SCALE WCS-GBMM |
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Long-term simulations of mercury fate in watersheds are needed to support regulations such as TMDLs and to predict the effectiveness of regulatory proposals, such as the Clean Air ...
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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 THE ATMOSPHERE FORMATION OF REACTIVE MERCURY IN FLORIDA AND THE GREAT LAKES |
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Reactive mercury in the troposphere is affected by a complex mix of local emissions, global-scale transport, and gas and aqueous-phase chemistry. Here, we describe a modified versi...
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MODELING THE RESPONSE OF A VARIETY OF FRESHWATER ECOSYSTEMS TO CHANGES IN ATMOSPHERIC HG DEPOSITION ASSOCIATED WITH THE CLEAN AIR MERCURY RULE |
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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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MODELING TOOLS USED FOR MERCURY TMDLS IN GEORGIA RIVERS |
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The Clean Water Act and associated regulations require each State to identify waters not meeting water quality standards applicable to their designated uses. Total maximum daily l...
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MODELING TRANSPORT AND TRANSFORMATION OF HG COMPOUNDS IN CONTINENTAL AIR MASSES |
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The global mercury cycle involves both continental and marine environments. However, there are special considerations for modeling atmospheric mercury over continents. Most anthro...
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MODELLING QUALITY ASSURANCE PLAN FOR THE LAKE MICHIGAN MASS BALANCE PROJECT |
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With the ever increasing complexity and costs of ecosystem protection and remediation, the USEPA is placing more emphasis on ensuring the quality and credibility of scientific tool...
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MODERN AND HISTORIC ATMOSPHERIC MERCURY FLUXES IN NORTHERN ALASKA: GLOBAL SOURCES AND ARCTIC DEPLETION. (R829796) |
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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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MODIFIED VALVE SEAT FOR THE STATIC MERCURY DROP ELECTRODE |
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A modification in the design of the valve seat of the static mercury drop electrode is presented. The creation of a 'four-point' seal within the modified valve seat prevents the ca...
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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 CYCLICAL AIR-WATER ELEMENTAL MERCURY EXCHANGE |
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Previous experimental work has demonstrated that elemental mercury evasion from natural water displays a diel cycle; evasion rates during the day can be two to three times evasion ...
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MONITORING INTER-ANNUAL VARIABILITY REVEALS SOURCES OF MERCURY CONTAMINATION IN CLEAR LAKE, CALIFORNIA. (R825285) |
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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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MONITORING THE RESPONSE TO CHANGING MERCURY DEPOSITION |
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There is a crucial need to document the impact and effectiveness of regulation of anthropogenic mercury (Hg) emissions on human, wildlife and ecosystem health to ascertain the need...
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MOTOR FUNCTION IN RATS EXPOSED TO PCBS AND METHYL MERCURY DURING EARLY DEVELOPMENT. (R829390C001) |
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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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MOVEMENT OF HAZARDOUS SUBSTANCES IN SOIL: A BIBLIOGRAPHY. VOLUME 1. SELECTED METALS |
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This bibliography is intended for use by personnel concerned, either via research or management, with the disposal of hazardous wastes, other than sewage sludge, on land. It is the...
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MOVEMENT OF HAZARDOUS SUBSTANCES IN SOIL: A BIBLIOGRAPHY. VOLUME 2. PESTICIDES |
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This bibliography is intended for use by personnel concerned, either via research or management, with the disposal of hazardous wastes, other than sewage sludge, on land. It is the...
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MOVEMENT OF MERCURY IN RAT SUBMAXILLARY SLICES |
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The movement of HgCl2 was studied in slices of rat submaxillary gland. A steady-state distribution was reached within 60 min. N2 or metabolic inhibitors failed to decrease tissue u...
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MOVEMENT OF MERCURY IN THE NORTHEAST AIRSHED |
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This presentation package describes mercury in the Northeast airshed and traces the exposure pathway for mercury from emissions to human exposure....
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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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MULTIELEMENTAL ANALYTICAL TECHNIQUES FOR HAZARDOUS WASTE ANALYSIS: THE STATE-OF-THE-ART |
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Based on a comprehensive review of the literature, the multielemental techniques of inductively coupled plasma optical emission spectroscopy (ICP), x-ray fluorescence (XRF) and ins...
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MULTIPOLLUTANT EMISSION CONTROL TECHNOLOGY OPTIONS FOR COAL-FIRED POWER PLANTS |
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The report presents and analyzes various existing and novel control technologies designed to achieve multipollutant [sulfur dioxide (SO2), nitrogen oxide (NOX), and mercury (Hg)] e...
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MULTIPOLLUTANT EMISSION CONTROL TECHNOLOGY OPTIONS FOR COAL-FIRED POWER PLANTS |
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The report presents and analyzes various existing and novel control technologies designed to achieve multi-emission [sulfur dioxide (SO2), nitrogen oxide (NOX), and mercury (Hg)] r...
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MUNICIPAL SOLID WASTE (MSW) COMBUSTOR ASH DEMONSTRATION PROGRAM - "THE BOATHOUSE" |
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The report presents the results of a research program designed to examine the engineering and environmental acceptability of using municipal solid waste (MSW) combustor ash as an a...
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MUNICIPAL SOLID WASTE COMBUSTOR ASH DEMONSTRATION PROGRAM - "THE BOATHOUSE" |
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The report presents the results of a research program designed to examine the engineering and environmental acceptability of using municipal solid waste (MSW) combustor ash as an a...
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MUNICIPAL WASTE COMBUSTION MULTIPOLLUTANT STUDY EMISSION TEST REPORT, MAINE ENERGY RECOVERY COMPANY, RE- FUSE DERIVED FUEL FACILITY, BIDDEFORD, MAINE - VOLUME I: SUMMARY OF RESULTS |
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The report gives results of an emission test of a new municipal solid waste combustor, in Biddeford, ME, that burns refuse-derived fuel and is equipped with a lime spray dryer fabr...
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MUNICIPAL WASTE COMBUSTION, MULTIPOLLUTANT STUDY, EMISSION TEST REPORT, MAINE ENERGY RECOVERY COMPANY REFUSE DERIVED FUEL FACILITY, BIDDEFORD, MAINE - VOLUME I |
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The report gives results of an emission test of a new municipal solid waste combustor, in Biddeford, ME, that burns refuse-derived fuel and is equipped with a lime spray dryer fabr...
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MUNICIPAL WASTE COMBUSTION, MULTIPOLLUTANT STUDY, EMISSION TEST REPORT, MAINE ENERGY RECOVERY COMPANY REFUSE DERIVED FUEL FACILITY, BIDDEFORD, MAINE - VOLUME III: APENDICES G-N |
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The report gives results of an emission test of a new municipal solid waste combustor, in Biddeford, ME, that burns refuse-derived fuel and is equipped with a lime spray dryer fabr...
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MUNICIPAL WASTE COMSUTION, MULTIPOLLUTANT STUDY, EMISSION TEST REPORT, MAINE ENERGY RECOVERY COMPANY REFUSE DERIVED FUEL FACILITY, BIDDEFORD, MAINE - VOLUME II: APPENDICES A-F |
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The report gives results of an emission test of a new municipal solid waste combustor, in Biddeford, ME, that burns refuse-derived fuel and is equipped with a lime spray dryer fabr...
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Modeled Watershed Runoff Associated with Variations in Precipitation Data with Implications for Contaminant Fluxes |
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Watershed-scale fate and transport models are important tools for estimating the sources, transformation, and transport of contaminants to surface water systems. Precipitation is o...
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Modeled Watershed Runoff Associated with Variations in Precipitation Data, with Implications for Contaminant Fluxes: Initial Results |
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Precipitation is one of the primary forcing functions of hydrologic and watershed fate and transport models; however, in light of advances in precipitation estimates across watersh...
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Modeling Watershed Mercury Response to Atmospheric Loadings: Response Time and Challenges |
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The relationship between sources of mercury to watersheds and its fate in surface waters is invariably complex. Large scale monitoring studies, such as the METAALICUS project, have...
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Monitoring the Effectiveness of Measures to Contain the Primary Sources of Mercury Pollution on the Site of a Former Chlor-Akali Plant in Kazakhstan |
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An extensive sampling campaign was conducted in 2005-2007 to monitor the effectiveness of remedial measures to contain mercury pollution at the site of a former mercury cell chlor-...
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NATIONAL REPORT ON HUMAN EXPOSURE TO ENVIRONMENTAL CHEMICALS |
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The National Report on Human Exposure to Environmental Chemicals is a new publication that will provide an ongoing assessment of the U.S. population's exposure to environmental che...
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NATIONAL STUDY OF CHEMICAL RESIDUES IN FISH - III. STUDY RESULTS |
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Bottom feeding and game fish, from each of nearly 400 sites throughout the United States were analyzed for 15 PCDD/PCDFS, PCBS, 21 pesticides and herbicides, and 13 other organic c...
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NATIONAL STUDY OF MERCURY CONTAMINATION IN FISH - IV: ANALYTICAL METHODS AND RESULTS |
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The concentration of mercury has been determined in fish collected for a nation-wide survey of bioaccumulatable chemical contaminants. amples were prepared using standard digestion...
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NEUROBEHAVIORAL EFFECTS OF EXPOSURE TO ENVIRONMENTAL POLLUTANTS IN CZECH CHILDREN |
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Ambient levels of SO2, NOx, PAHs and heavy metals are elevated in Northern Bohemia as a result of intensive mining and combustion of brown coal. To assess the neurotoxicological...
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NEURODEVELOPMENTAL EFFECTS OF ENVIRONMENTAL EXPOSURES |
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Neurodevelopmental Effects of Environmental Exposures
Sherry G. Selevan, Pauline Mendola, Deborah C. Rice (US EPA, Washington,
DC)
The nervous system starts developm...
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NEW SOURCE IDENTIFICATION OF MERCURY CONTAMINATION IN THE GREAT LAKES |
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Mercury contamination of the fishery affects hundreds of lakes and rivers in the Upper Midwest and around the Great Lakes (1-4); see Figure 1. n Minnesota, fish consumption advisor...
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NORTH AMERICAN REGIONAL ACTION PLAN ON MERCURY |
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The North American Regional Action Plan (NARAP) on Mercury is one of a number of action plans that stem from the North American Agreement on Environmental Cooperation between the g...
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NORTHEAST LOON STUDY WORKING GROUP PARTNERSHIP TO ASSESS ENVIRONMENTAL RISK |
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The Northeast Loon Study Working Group (NELSWG) was formed in 1994 to proactively identify threats to one of the Northeast's most popular waterbirds, the common loon, Gavia immer. ...
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NOVEL ECONOMICAL HG(0) OXIDATION REAGENT FOR MERCURY EMISSIONS CONTROL FROM COAL-FIRED BOILERS |
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The authors have developed a novel economical additive for elemental mercury (Hg0) removal from coal-fired boilers. The oxidation reagent was rigorously tested in a lab-scale fixed...
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NOVEL MERCURY OXIDANT AND SORBENT FOR MERCURY EMISSIONS CONTROL FROM COAL-FIRED POWER PLANTS |
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The authors have successfully developed novel efficient and cost-effective sorbent and oxidant for removing mercury from power plant flue gases. These sorbent and oxidant offer gr...
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NOVEL OXIDANT FOR ELEMENTAL MERCURY CONTROL FROM FLUE GAS |
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The primary objective of this study is to develop and test advanced noncarbonaceous solid sorbent materials suitable for removing the elemental form of mercury from power plant emi...
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NOVEL OXIDANT FOR ELEMENTAL MERCURY CONTROL FROM FLUE GAS |
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A novel economical oxidant has been developed for elemental mercury (Hg(0)) removal from coal-fired boilers. The oxidant was rigorously tested in a lab-scale fixed-bed system with...
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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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ON THE MECHANISM CONTROLLING THE LIGHT ENHANCEMENT OF MERCURY EMISSIONS FROM SUBSTRATE. (R825249) |
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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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ON-LINE MEASUREMENT OF THE INFRARED SPECTRA OF GAS CHROMATOGRAPHIC ELUENTS |
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Techniques for increasing the sensitivity of the interface between a gas chromatograph and a rapid-scanning Fourier transform infrared spectrometer (GC-IR) have been developed. A s...
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ON-LINE ZEEMAN ATOMIC ABSORPTION SPECTROSCOPY FOR MERCURY ANALYSIS IN OIL SHALE GASES |
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This publication describes the development and initial testing of instrumentation for continuous on-line analytical measurement of mercury concentrations in complex gas streams or ...
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ON-SITE MERCURY ANALYSIS OF SOIL AT HAZARDOUS WASTE SITES BY IMMUNOASSAY AND ASV |
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Two field methods for Hg, immunoassay and anodic stripping voltammetry (ASV), that can provide onsite results for quick decisions at hazardous waste sites were evaluated. Each me...
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ONE FISH, TWO FISH, RED FISH, BLUE FISH: THE FISH QUALITY INDEX AS A RISK COMMUNICATION TOOL |
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Many people are at high risk for methyl mercury toxicity because of their consumption of contaminated fish. Often health risks of Persistent Bioaccumulative Toxicants (PT) such as ...
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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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OPTIMIZATION OF VOLTAMMETRIC METHODS FOR AN IN SITU DETERMINATION OF TOTAL SULFIDE IN ANOXIC POREWATER USING A MERCURY PLATED GOLD ELECTRODE |
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Voltammetric methods for determination of total sulfide concentrations in anoxic sediments utilizing a previously described [1] gold-based mercury amalgam microelectrode were optim...
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ORGANIC CONTAMINANTS IN COMMON AND ROSEATE TERN EGGS FROM THREE BREEDING COLONIES IN BUZZARDS BAY, MA |
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Poster presentation at a scienctific meeting...
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ORGANOCHLORINE, ORGANOBROMINE, METAL, AND SELENIUM RESIDUES IN BOTTLENOSE DOLPHINS (TURSIOPS TRUNCATUS) COLLECTED DURING AN UNUSUAL MORTALITY EVENT IN THE GULF OF MEXICO, 1990 |
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Polychlorinated biphenyls (PCBs), cis-chlordane, oxychlordane, heptachlor epoxide, mirex, hexachlorobenzene HCB), lindane, octachlorostyrene (OCS),p,p'-DDE,p,p'-DDT, dieldrin, trip...
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OVERVIEW OF EPA RESEARCH PROGRAM FOR HARD TO TREAT METALS - AS AND HG |
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The DOE and the USEPA have been investigating alternatives to incineration of metals such as mercury. The DOE has significant quantities of mixed waste containing mercury and is re...
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OVERVIEW OF MINE WASTE TECHNOLOGY PROGRAM |
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The Mine Waste Technology Program (MWTP) is an interagency agreement with the DOE and has partnerships with Universities, Forest Service, BLM, Industry and states. The mission of t...
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OVERVIEW OF NON-COMBUSTION MERCURY RESEARCH NRMRL - CINCINNATI, OH |
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This presentation provides an overview of the NRMRL-Cincinnati Mercury Non-Combustion Program....
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OVERVIEW OF SESSION GOALS WITH EXAMPLES OF THE EVOLUTION OF MULTI-MEDIA MODELING FOR INFORMING REGULATORY DECISIONS AT THE U.S. ENVIRONMENTAL PROTECTION AGENCY |
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The presence of high concentrations of mercury in fish tissue worldwide has resulted in increased concern of the exposure risks of fish-eating populations. To develop effective re...
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Organic Carbon as Inhibitor to SVOC and Metal Migration |
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The Safe Drinking Water Act (SDWA) authorizes the Underground Injection Control (UIC) program to protect underground drinking water (USDW) sources from contamination caused by unde...
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Organic Carbon as Inhibitor to SVOC and Metal Migration in Stormwater Drywells Discharging to the Subsurface-SLIDES |
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The Safe Drinking Water Act (SDWA) authorizes the Underground Injection Control (UIC) program to protect underground drinking water (USDW) sources from contamination caused by unde...
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PALEOLIMNOLOGICAL RECONSTRUCTION OF HISTORICAL ATMOSPHERIC LEAD AND MERCURY DEPOSITION AT LAKE TAHOE, CALIFORNIA-NEVADA. (R826282) |
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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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PARAMETRIC EVALUATION OF POWDERED ACTIVATED CARBON INJECTION FOR CONTROL OF MERCURY EMISSIONS FROM A MUNICIPAL WASTE COMBUSTOR |
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The paper gives results of a study at the Stanislaus County (California) municipal waste combustor (MWC) to determine the effects of carbon type, feed location, and feed rate on me...
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PARTICLE-FACILITATED MERCURY TRANSPORT FROM NEW IDRIA AND SULPHUR BANK MERCURY MINE TAILINGS. 2. MICROSCOPIC AND SPECTROSCOPIC ANALYSIS. (R827634) |
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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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PARTITIONING OF TOTAL MERCURY AND METHYLMERCURY TO THE COLLOIDAL PHASE IN FRESHWATERS. (R827629) |
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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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PATHOLOGICAL EFFECTS OF DIETARY METHYL MERCURY IN AMERICAN KESTRELS (FALCO SPARVERIIUS) |
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Methyl mercury in the aquatic food web poses significant health risks to both wildlife and humans. One primary source of mercury contamination for both the aquatic and terrestrial ...
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PATHOLOGICAL EFFECTS OF DIETARY METHYL MERCURY IN AMERICAN KESTRELS (FALCO SPARVERIUS) |
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This manuscript describes the development of ecological risk assessment methods to evaluate the relative and cumulative risks from toxic chemicals, with respect to risks from non-c...
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PATHOLOIGCAL EFFECTS OF DIETARY METHYL MERCURY IN AMERICAN KESTRELS ( FALCO SPARVERIUS) |
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Methyl mercury in aquatic food webs poses significant health risks to both wildlife and humans. One primary source of mercury contamination for both aquatic and terrestrial systems...
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PATTERNS AND CONSEQUENCES OF IN OVO EXPOSURE TO METHYLMERCURY IN COMMON LOONS |
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This presentation contains results of a pilot study of the impact of methyl mercury on the survival of common loon embryos through hatch...The study was done in low pH lakes in nor...
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PERCEPTION OF MERCURY RISK INFORMATION |
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Approximately 8% of American women have blood Mercury levels exceeding the EPA reference dose (a dose below which symptoms would be unlikely). The children of these women are at ri...
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PERFORMANCE AND COST OF MERCURY AND MULTIPOLLUTANT EMISSION CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS |
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The report presents estimates of the performance and cost of both powdered activated carbon (PAC) and multipollutant control technologies that may be useful in controlling mercury ...
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PERFORMANCE AND COST OF MERCURY EMISSION CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS |
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The report presents estimates of the performance and cost of powdered activated carbon (PAC) injection-based mercury control technologies and projections of costs for future applic...
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PERFORMANCE OF A NEW DIFFUSIVE SAMPLER FOR HG0 DETERMINATION IN THE TROPOSPHERE |
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Mercury behaves uniquely in the atmosphere due to its volatility and long lifetime. The existing methods for measuring atmospheric mercury are either expensive or labour intensive....
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PERFORMANCE VERIFICATION TESTING OF SOURCE WATER PROTECTION TECHNOLOGIES UNDER EPA'S ENVIRONMENTAL TECHNOLOGY VERIFICATION PROGRAM |
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This paper presents a brief overview of EPA's ETV program established in 1995 to overcome the numerous impediments to commercialization experienced by developers of innovative envi...
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PERIPHYTON AND SEDIMENT BIOASSESSMENT IN NORTH FLORIDA BAY |
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Periphyton colonization and sediment bioassessment were used in a survey to determine the relative environmental condition of multiple sampling sites located in Florida Bay and fou...
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PERIPHYTON AND SEDIMENT BIOASSESSMENT IN NORTH FLORIDA BAY |
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Periphyton colonization and sediment bioassessment were used in a survey to compare the relative environmental condition of sampling sites located in Florida Bay and four peripher...
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PEROXIDATION SYSTEMS, INC. - PEROX-PURE CHEMICAL OXIDATION TECHNOLOGY - APPLICATIONS ANALYSIS REPORT |
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This report evaluates the perox-pure chemical oxidation technology's ability to remove volatile organic compounds (VOC) and other organic contaminants present in liquid wastes. his...
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PERSISTENT CONTAMINANTS: NEW PRIORITIES, NEW CONCERNS |
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The Stockholm Convention on persistent organic pollutants (POPs) was adopted in 2001 to protect human health and the environment from chemicals that are highly toxic, persiste...
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PERSISTENT, BIOACCUMULATIVE, AND TOXIC POLLUTANTS (PBTS) |
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Article describes the class of compounds known as persistent, bioaccumulative, and toxic pollutants (known as PBTs), including the mechanisms responsible for ability to build up th...
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PFOS and PFOSA in Bottlenose Dolphins: An Investigation into Two Unusually High Mortality Epizootics |
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Along the Atlantic coast of the United States during 1987 and 1988, bottlenose dolphins (Tursiops truncatus) suffered one of this country's largest marine mammal mass mortality eve...
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PFOS and PFOSA in Bottlenose Dolphins: An Investigation into Two Unusually High Mortality Events |
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Along the Atlantic coast of the United States during 1987 and 1988, bottlenose dolphins (Tursiops truncatus) suffered one of this country's largest marine mammal mass mortality eve...
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PHARMACOLOGIC PROBING OF MERCURIC CHLORIDE-INDUCED RENAL DYSFUNCTION IN THE NEONATAL RAT |
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Acetazolamide, furosemide, chlorothiazide and amiloride are pharmacologic agents that act in the proximal tubule, loop of Henle, early distal tubule and late distal tubule, respect...
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PHOTOREACTIONS IN SURFACE WATERS AND THEIR ROLE IN BIOGEOCHEMICAL CYCLES |
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During the past decade significant interest has developed in the influence of photochemical reactions on biogeochemical cycles in surface waters of lakes and the sea. A major port...
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PHOTOTHERMAL DESTRUCTION OF THE VAPOR OF ORGANIC COMPOUNDS |
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The results of thermal and photothermal destruction of the vapors of organic compounds were compared by conducting tests in a photothermal detoxification unit. enon are lamp was us...
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PILOT PLANT TESTING OF ELEMENTAL MERCURY RE-EMISSION FROM WET SCRUBBERS |
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A pilot-scale wet lime/limestone flue gas desulfurization scrubber system was designed to conduct mercury emission control research. The first tests focused on investigating the ph...
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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 STUDY PROTOCOL: APPLICATION OF MEASURES OF SPONTANEOUS MOTOR ACTIVITY FOR BEHAVORIAL ASSESSMENT IN HUMAN INFANTS |
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As a participant in planning the National Childrens Study (NCS), EPA is interested in the investigation of key developmental disorders that may be associated with environmental exp...
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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 STUDY OF THE EFFECT OF SELECTIVE CATALYTIC REDUCTION CATALYST ON MERCURY SPECIATION IN ILLINOIS AND POWDER RIVER BASIN COAL COMBUSTION FLUE GASES |
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A study was conducted to investigate the effect of selective catalytic reduction (SCR) catalyst on mercury (Hg) speciation in bituminous and subbituminous coal combustion flue gase...
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POLLUTANTS FROM SYNTHETIC FUELS PRODUCTION: SAMPLING AND ANALYSIS METHODS FOR COAL GASIFICATION |
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The report describes sampling and analysis methods involving a laboratory-scale coal gasification facility used to study the generation, sampling, chemical analysis, process evalua...
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POLYTHIOL-FUNCTIONALIZED ALUMINA MEMBRANES FOR MERCURY CAPTURE |
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Various materials (particles, resins etc.) for Hg2+ sorption from aqueous streams have been reported in literature. Conventional sorbents are relatively inefficient beca...
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POPULATION MODELS FOR ASSESSING RISKS OF MULTIPLE STRESSORS TO THE COMMON LOON |
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As part of a demonstration project focusing on the Common Loon (Gavia immer), the U.S. Environmental Protection Agency's National Health and Environmental Effects Research Laborato...
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POPULATION-LEVEL RESPONSE OF THE COMMON LOON TO MERCURY IN TWO CANADIAN PROVINCES: A MATRIX MODELING APPROACH |
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We used data collected from Common Loon Gavia immer populations in two Canadian provinces to demonstrate a matrix population modeling approach for evaluating population-level respo...
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POSSIBLE RAMIFICATIONS OF HIGHER MERCURY CONCENTRATIONS IN FILLET TISSUE OF SKINNIER FISH |
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Mercury concentrations were found to be statistically higher in the fillet tissue of the skinnier individuals of a fish species (striped bass) that was experiencing starvation when...
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POSSIBLE USE OF 'ALCALIGENES PARADOXUS' AS A BIOLOGICAL MONITOR |
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A tritium (3H2)-oxidizing soil isolate was identified as Alcaligenes paradoxus, a gram-negative, rod-shaped bacterium. This organism belongs to a group of facultative autotrophs re...
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POSTER TITLE: UNDERSTANDING MERCURY FATE AND TRANSPORT FROM SOURCES TO DEPOSITION |
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ORD's atmospheric mercury research produces information to improve the understanding of mercury transport and fate from the point of emission into the atmosphere to its deposition ...
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POSTNATAL METHYL MERCURY EXPOSURE: EFFECTS ON ONTOGENY OF RENAL AND HEPATIC ORNITHINE DECARBOXYLASE RESPONSES TO TROPHIC STIMULI |
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The effects of postnatal methylmercury exposure on the ongoteny of kidney and liver responsiveness to trophic stimuli were examined. Increased ornithine decarboxylase (ODC) activit...
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POTENTIAL FOR MERCURY RELEASE FROM COAL COMBUSTION BY-PRODUCTS. (R827649) |
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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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POWER PLANT EVALUATION OF THE EFFECT OF SCR TECHNOLOGY ON MERCURY |
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The paper presents results of research on the impact that selective catalytic reduction (SCR) systems have on speciation and total emissions of mercury. Although SCR systems are de...
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PRACTICAL APPLICATIONS FROM OBSERVATIONS OF MERCURY OXIDATION AND BINDING MECHANISMS |
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This paper describes a bench-scale program at the U.S. EPA. The goals of this program are to (a) isolate individual mechanisms of elemental mercury oxidation and oxidized mercury ...
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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 ESTUARINE SEDIMENT METAL CONCENTRATIONS AND INFERRED ECOLOGICAL CONDITIONS: AN INFORMATION THEORETIC APPROACH |
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Empirically derived values associating sediment metal concentrations with degraded ecological conditions provide important information to assess estuarine condition. However, reso...
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PREDICTING WILDLIFE POPULATION EFFECTS FROM MERCURY AND OTHER STRESSORS |
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Describes development of ecosystem toxicity risk assessment methods....
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PREDICTING WILDLIFE POPULATION EFFECTS FROM MULTIPLE STRESSORS |
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The U.S. Environmental Protection Agency's National Health and Environmental Effects Research Laboratory (NHEERL) is developing tools for predicting risks of multiple stressors to ...
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PRELIMINARY ANALYSIS OF COMMON LOON GENETIC STRUCTURE IN NORTH AMERICA BASED ON FIVE MICROSATELLITE LOCI |
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This study seeks to determine fine-scale genetic structure of Common Loon breeding populations in order to link wintering birds with their breeding regions. Common Loons are large...
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PRELIMINARY ANNOUNCEMENT AND CALL FOR ABSTRACTS - WORKSHOP ON THE FATE, TRANSPORT, AND TRANSFORMATION OF MERCURY IN AQUATIC AND TERRESTRIAL ENVIRONMENTS |
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This publication is a preliminary announcement and call-for-abstracts for the 5/2001 Workshop on the Fate, Transport, and Transformation of Mercury in Aquatic and Terrestrial Envir...
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PRELIMINARY ESTIMATES OF PERFORMANCE AND COST OF MERCURY CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS |
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Under the Clean Air Act Amendments of 1990, the Environmental Protection Agency has determined that regulation of mercury emissions from coal-fired power plants is appropriate and ...
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PRELIMINARY ESTIMATES OF PERFORMANCE AND COST OF MERCURY CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS: JOURNAL ARTICLE |
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NRMRL-RTP-P- 574 Srivastava*, R.K., Sedman*, C.B., Kilgroe*, J.D., Smith D., and Renninger, S. Preliminary Estimates of Performance and Cost of Mercury Control Technology Applicat...
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PRELIMINARY ESTIMATES OF PERFORMANCE AND COST OF MERCURY EMISSION CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS: AN UPDATE |
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The paper presents estimates of performance levels and related costs associated with controlling mercury (Hg) emissions from coal-fired power plants using either powdered activated...
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PRELIMINARY ESTIMATES OF PERFORMANCE AND COST OF MERCURY EMISSION CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS: AN UPDATE |
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The paper presents estimates of performance levels and related costs associated with controlling mercury (Hg) emissions from coal-fired power plants using either powdered activated...
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PRELIMINARY PERFORMANCE AND COST ESTIMATES OF MERCURY EMISSION CONTROL OPTIONS FOR ELECTRIC UTILITY BOILERS |
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The paper discusses preliminary performance and cost estimates of mercury emission control options for electric utility boilers. Under the Clean Air Act Amendments of 1990, EP...
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PRELIMINARY RESULTS FROM THE US EPA MERCURY SPECIATION NETWORK AND AIRCRAFT MEASUREMENT CAMPAIGNS |
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Since EPA measured high concentrations of reactive gaseous mercury (RGM) in emissions from municipal and hospital waste incinerators in 1995, we have been working to elucidat...
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PRELIMINARY RESULTS FROM THE USEPA MERCURY SPECIATION NETWORK AND AIRCRAFT MEASUREMENT CAMPAIGNS |
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Since EPA measured high concentrations of reactive gaseous mercury (RGM) in emissions from municipal and hospital waste incinerators in 1995, we have been working to elucidate th...
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PREPARATION AND EVALUATION OF MODIFIED LIME AND SILICA-LIME SORBENTS FOR MERCURY VAPOR EMISSIONS CONTROL |
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The paper discusses current efforts to improve the uptake of mercury species by increasing active sites and adding oxidative species to the sorbent. (NOTE: Previous work showed th...
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PRESENTED 04/05/2006: MERCURY MEASUREMENTS FOR SOLIDS MADE RAPIDLY, SIMPLY, AND INEXPENSIVELY |
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While traditional methods for determining mercury in solid samples involve the use of aggressive chemicals to dissolve the matrix and the use of other chemicals to properly reduce ...
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PRESENTED MAY 10, 2005, MERCURY MEASUREMENTS FOR SOLIDS MADE RAPIDLY, SIMPLY, AND INEXPENSIVELY |
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While traditional methods for determining mercury in solid samples involve the use of aggressive chemicals to dissolve the matrix and the use of other chemicals to properly reduce ...
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PREVENTION OF ELEMENTAL MERCURY REEMISSIONS FROM ILLINOIS COAL WET SCRUBBERS |
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This research conducted pilot plant tests to investigate techniques for controlling and reducing Hg0 re-emissions. A pilot-scale (0.01MW) wet scrubber was designed to si...
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PRIORITY POLLUTANT REMOVAL FROM MINE DRAINAGE |
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A study of the removal of selected priority pollutants from acid mine drainage was conducted at EPA's Crown, West Virginia, site. The pollutants studied were the volatiles benzene,...
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PROCEEDINGS AND SUMMARY REPORT: WORKSHOP ON THE FATE, TRANSPORT, AND TRANSFORMATION OF MERCURY IN AQUATIC AND TERRESTRIAL ENVIRONMENTS, MAY 8-10, 2001, WEST PALM BEACH, FLORIDA |
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The Workshop on the Fate, Transport, and Transformation of Mercury in Aquatic and Terrestrial Environments was held on May 8-10, 2001 in West Palm Beach, Florida. The workshop was ...
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PROCEEDINGS OF INTERNATIONAL SYMPOSIUM ON RECENT ADVANCES IN THE ASSESSMENT OF THE HEALTH EFFECTS OF ENVIRONMENTAL POLLUTION, HELD AT PARIS (FRANCE) ON 24-28 JUNE 1974. VOLUME I |
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;Partial contents: The effect of environmental factors on health - methods for population studies; Relationship of air pollution to prevalance of lower respiratory illness and lung...
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PROCEEDINGS OF INTERNATIONAL SYMPOSIUM ON RECENT ADVANCES IN THE ASSESSMENT OF THE HEALTH EFFECTS OF ENVIRONMENTAL POLLUTION, HELD AT PARIS (FRANCE) ON 24-28 JUNE 1974. VOLUME III |
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;Partial contents: The incidence of elevated blood lead values in an asymptomatic pediatric population residing in a major American industrial state; Method for the identification ...
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PROCEEDINGS OF INTERNATIONAL SYMPOSIUM ON RECENT ADVANCES IN THE ASSESSMENT OF THE HEALTH EFFECTS OF ENVIRONMENTAL POLLUTION, HELD AT PARIS (FRANCE) ON 24-28 JUNE 1974. VOLUME IV |
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;Partial contents: The state of the art regarding the experimental investigations of the effects of pollutants; The assessment of environmental carcinogen risks in terms of life sh...
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PROCEEDINGS OF THE AIR QUALITY: MERCURY, TRACE ELEMENTS, AND PARTICULATE MATTER CONFERENCE, MCLEAN, VA, DECEMBER 1-4, 1998. (R827649) |
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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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PROCEEDINGS OF: WORKSHOP ON MERCURY IN PRODUCTS, PROCESSES, WASTE AND THE ENVIRONMENT: ELIMINATING, REDUCING AND MANAGING RISKS FROM NON-COMBUSTION SOURCES |
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This workshop was held on March 22-23, 2000, in Baltimore, Maryland. To facilitate discussions of this issue, the workshop combined a series of presentations at plenary sessions, m...
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PROCEEDINGS: 1991 INTERNATIONAL CONFERENCE ON MUNICIPAL WASTE COMBUSTION, VOLUME 1. SESSIONS P, 0, 1A, 2A, 3A, 4A, 6A, 6B, 9C, AND 10B |
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The three-volumes document 82 presentations by authors from 15 countries at the Second International Conference on Municipal Waste Combustion (MWC) in Tampa, Florida, April 16-19, ...
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PROCEEDINGS: 1991 INTERNATIONAL CONFERENCE ON MUNICIPAL WASTE COMBUSTION, VOLUME 2. SESSIONS 1B, 2B, 3B, 4B, 7A/B, 8A/B, AND 9B |
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The three-volumes document 82 presentations by authors from 15 countries at the Second International Conference on Municipal Waste Combustion (MWC) in Tampa, Florida, April 16-19, ...
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PROCEEDINGS: 1991 INTERNATIONAL CONFERENCE ON MUNICIPAL WASTE COMBUSTION, VOLUME 3. SESSIONS 1C, 2C, 3C, 4C, 6C, 7C, 8C, 9A, AND 10A/C |
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The three-volumes document 82 presentations by authors from 15 countries at the Second International Conference on Municipal Waste Combustion (MWC) in Tampa, Florida, April 16-19, ...
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PROCEEDINGS: MULTIPOLLUTANT SORBENT REACTIVITY WORKSHOP |
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The report is a compilation of technical papers and visual aids presented by representatives of industry, academia, and government agencies at a workshop on multipollutant sorbent ...
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PRODUCTION AND LOSS OF DISSOLVED GASEOUS MERCURY IN COASTAL SEAWATER (R824778) |
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The formation of dissolved gaseous mercury (DGM, mainly
composed of elemental mercury, Hg0) in the surface
ocean
and its subsequent removal through volatiliz...
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PROJECT SUMMARY: CONTROLLING SO2 EMISSIONS: A REVIEW OF TECHNOLOGIES (EPA/600/SR-00/093) |
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Sulfur dioxide (SO2) scrubbers may be used by electricity generating units to meet the requirements of Phase II of the Acid Rain SO2
Reduction Program. Additionally, the use of scr...
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PROTECTING HUMAN HEALTH AND THE ENVIRONMENT ON SIOUX TRIBAL LANDS: A PARTNERSHIP OF EPA AND TRIBAL EPD |
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Through environmental sampling performed by EPA and Cheyenne River Sioux Tribe Environmental Protection Division personnel, mercury contamination in managed pond systems in South D...
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PSYCHROPHILIC PSEUDOMONAS SP. RESISTANT TO MERCURY FROM PAVLODAR, KAZAKHSTAN |
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As mercury circulates and deposits globally, the remediation of extensive mercury contamination surrounding a chloralkali plant in Pavlodar, Kazakhstan is critical. High-levels of ...
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Pilot Plant Testing of Elemental Mercury Reemission from a Wet Scrubber (2) |
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This paper discusses the recent observations of elemental mercury (HgO) reemissions from a pilot-scale limestone wet scrubber. Simulated flue gas was generated by burning natural g...
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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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QUANTIFYING NATURAL SOURCE MERCURY EMISSIONS FROM THE IVANHOE MINING DISTRICT, NORTH-CENTRAL NEVADA, USA. (R827634) |
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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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RANA CATESBEIANA (AMERICAN BULLFROG) DIET |
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RANA CATESBELANA (American Bullfrog). DIET. Data were obtained opportunistically
from 28 adult (M = 14; F = 14) bullftogs collected in April 2001 from the Meadow Valley Wash |
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RECA EXPRESSION IN RESPONSE TO SOLAR UVR IN THE MARINE BACTERIUM VIBRIO NATRIEGENS. |
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Medicinal plants may carry residuals of environmentally persistent pesticides or assimilate heavy metals in varying degrees. Several factors may influence contaminant accumulation,...
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RECENT GEOCHEMICAL SAMPLING AND MERCURY SOURCES AT SULPHUR BANK MERCURY MINE, LAKE COUNTY, CA |
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The Sulphur Bank Mercury Mine (SBMM), located on the shore of Clear Lake in Lake County, California, has been identified as a significant source of mercury to the lake. Sulphur Ba...
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REDISTRIBUTION OF MERCURY FROM CONTAMINATED LAKE SEDIMENTS OF CLEAR LAKE, CALIFORNIA. (R825285) |
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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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REDISTRIBUTION OF MERCURY FROM CONTAMINATED LAKE SEDIMENTS OF CLEAR LAKE, CALIFORNIA. (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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REDUCING MERCURY EMISSION FROM MUNICIPAL WASTE COMBUSTION WITH CARBON INJECTION INTO FLUE GAS |
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The paper gives results of tests (to aid in developing emission rules) in July and August 1991 on a 360-tonne/day mass burn municipal waste combustor (MWC) at the Ogden Martin Syst...
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REDUCTION OF COAL-BASED METAL EMISSIONS BY FURNACE SORBENT INJECTION |
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The paper gives results of research of the ability of sorbent injection technology to reduce the potential for trace metal emissions from coal combustion. ilot-scale tests of high-...
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REDUCTION OF COAL-BASED METAL EMISSIONS BY FURNACE SORBENT INJECTION |
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The ability of sorbent injection technology to reduce the potential for trace metal emissions from coal combustion was researched. Pilot scale tests of high-temperature furnace sor...
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REFERENCE DOSE FOR METHYLMERCURY (EXTERNAL REVIEW DRAFT) |
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In 1997, U.S. EPA issued the Mercury Study Report to Congress (MSRC). Among the assessments in the MSRC was a state-of-the-science evaluation of the health effects of methylmerc...
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REGIONAL AIR POLLUTION STUDY, NON-CRITERIA POLLUTANT INVENTORY |
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In conjunction with the Regional Air Pollution Study (RAPS) being conducted in the St. Louis Air Quality Control Region (AQCR), an inventory of non-criteria pollutants was assemble...
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REGIONAL PATTERNS OF WET MERCURY DEPOSITION |
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Most of the mercury contamination in lakes and streams of nonindustrialized regions of the United States and Canada is derived from atmospheric deposition. In order to determine th...
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REGIONAL-SCALE ATMOSPHERIC MERCURY MODELING |
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This PowerPoint presentation gives a short synopsis of the state of the science of atmospheric mercury modeling, including a description of recent publications of model codes by EP...
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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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RELATIONSHIPS OF HG(II) VOLATILIZATION FROM A FRESHWATER POND TO ABUNDANCE OF MER GENES IN THE GENE POOL OF THE INDIGENOUS MICROBIAL COMMUNITY |
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The role of biological activities in the reduction and volatilization of Hg(II) from a polluted pond was investigated. lemental mercury was evolved from pond water immediately foll...
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RELATIVE ABUNDANCE OF TOTAL AND METHYL MERCURY IN 1994-5 LAKE MICHIGAN FORAGE FISH |
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As part of the Lake Michigan Mass Balance Project, forage fish samples were collected in 1994-5 from three regions within Lake Michigan: Saugatuck, Michigan and Port Washington and...
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RELEASE OF MERCURY FROM MINE RESIDUES INTO LAKE SUPERIOR |
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Using recent compilations of mine production and discharge rates, we will demonstrate that the cumulative Hg inputs to Lake Superior from mining activities are much higher than fro...
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RELEASE OF MERCURY VAPOR FROM COAL COMBUSTION ASH. (R827649) |
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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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RELIABILITY STUDY OF THE U.S. EPA'S METHODS 101A - DETERMINATION OF PARTICULATE AND GASEOUS MERCURY EMISSIONS |
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EPA Method 101A applies to the determination of particulate and gaseous mercury missions from sewage sludge incinerators and other sources. oncern has been expressed hat ammonia or...
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REMOVAL OF CHEMICAL AND MICROBIAL CONTAMINANTS IN DRINKING WATER - WATTS PREMIER M-2400 POINT-OF-ENTRY REVERSE OSMOSIS DRINKINGWATER TREATMENT SYSTEM |
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The Watts Premier M-2400 POE RO Drinking Water Treatment System was tested at the NSF Drinking Water Treatment Systems Laboratory for removal of the viruses fr and MS2, the bacteri...
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REMOVAL OF TRACE ELEMENTS FROM ACID MINE DRAINAGE |
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Lime neutralization, reverse osmosis, and ion exchange were studied for their effectiveness in removing mg/l levels of ten specific trace elements from spiked acid mine drainage un...
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REPRODUCTIVE TOXICITY OF CHLORPYRIFOS, DIELDRIN, AND METHYL MERCURY MIXTURES TO THE AMPHIPOD, HYALELLA AZTECA |
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Toxicological interactions were assessed on the reproduction of the amphipod Hyalella azteca throughout a chronic exposure to methyl mercury (0.9, 4.7, 23.3 nM), chlorpyrifos (0.01...
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RESIDENTIAL EXPOSURE TO DRINKING WATER ARSENIC IN INNER MONGOLIA, CHINA |
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Residential exposure to drinking water arsenic in Inner Mongolia, China
Zhixiong Ning1, Richard K. Kwok2, Zhiyi Liu1, Shiying Zhang1, Chenglong Ma1, Danelle T. Lobdell2, Michael...
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RESPONSE OF SALT MARSH FUNGI TO THE PRESENCE OF MERCURY AND POLYCHLORINATED BIPHENYLS AT A SUPERFUND SITE. (R825147) |
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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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RESPONSE OF SALTMARSH FUNGI TO PRESENCE OF MERCURY AND POLYCHLORINATED BIPHENYLS AT A SUPERFUND SITE. (R825147) |
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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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RESPONSE OF SALTMARSH FUNGI TO THE PRESENCE OF MERCURY AND POLYCHLORINATED BIPHENYLS AT A SUPERFUND SITE. (R825147) |
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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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RESULTS FROM THE NORTH AMERICAN MERCURY MODEL INTER-COMPARISON STUDY (NAMMIS) |
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A North American Mercury Model Intercomparison Study (NAMMIS) has been conducted to build upon the findings from previous mercury model intercomparison in Europe. In the absence o...
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RESULTS OF THE LAKE MICHIGAN MASS BALANCE STUDY: MERCURY DATA REPORT |
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Global releases of mercury to the environment come from both natural and anthropogenic (caused by human activity) sources. Many of these sources are the result of releasing geologi...
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RETROSPECTIVE AND CURRENT RISKS OF MERCURY TO PANTHERS IN THE FLORIDA EVERGLADES |
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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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REVIEW OF HISTORICAL AND RECENT MERCURY CONCENTRATIONS IN GREAT LAKES SEDIMENTS |
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Sediments of the Great Lakes have been impacted by inputs of mercury to the lakes. The first measurements of mercury concentrations in Great Lakes sediments were for samples colle...
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REVIEW OF SIMULATION METHODS FOR SPATIALLY EXPLICIT POPULATION-LEVEL RISK ASSESSMENT |
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Poster Presentation at EPA Science Forum...
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REVIEW OF SIMULATION METHODS FOR SPATIALLY-EXPLICIT POPULATION-LEVEL RISK ASSESSMENT |
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Factors that significantly impact population dynamics, such as resource availability and exposure to stressors, frequently vary over space and thereby determine the heterogeneous s...
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REVIEW OF TREATMENT FOR METAL HAZARDOUS WASTESTREAMS |
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This publication will examine some of the practices being used or considered for use at on-site or commercial hazardous waste treatment, storage and disposal facilities (TSDF). pti...
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RISK CHARACTERIZATION OF PERSISTENT NEUROTOXIC CONTAMINANTS |
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Neurotoxicity is an adverse change in structure or function of the central and/or peripheral nervous system following exposure to a chemical, physical, or biological agent. Thousa...
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RISK COMMUNICATION IN ACTION: CASE STUDIES IN FISH ADVISORIES |
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This Handbook provides both general and specific information on how to enhance mercury risk communication activities and their associated outreach efforts. Additionally, it provide...
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RISK COMMUNICATION TOOLS FOR FISH CONSUMPTION ADVISORIES |
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In EPA's Mercury Report to Congress an important finding ws that certain populations of subsistence fishermen are at high risk for methyl mercury toxicity because of their high con...
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RISK PERCEPTION AND DIFFUSION OF MERCURY RISK INFORMATION |
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The most recent NHANES data reveals that approximately 8% of American women have blood Mercury levels exceeding the EPA reference dose (a dose below which symptoms would be unlikel...
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ROLE OF HCL IN ADSORPTION OF ELEMENTAL MERCURY VAPOR BY CALCIUM-BASED SORBENTS |
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The paper gives results of a study to identify active sites and surface functional groups that may contribute to the adsorption of elemental mercury (Hg?) by relatively inexpensive...
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ROLE OF HUMIC SUBSTANCES ON THE PHOTOCHEMICAL REDUCTION OF MERCURY |
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Solutions containing mercury and fulvic acids (isolated from the Florida Everglades) were exposed to simulated sunlight from a 1000-W Xenon lamp. In the ensuing reaction, ionic me...
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ROLE OF NA+ IN TRANSPORT OF HG2+ AND INDUCTION OF THE TN21 "MER" OPERON |
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The effects of sodium ions on the uptake of Hg 2 + and induction of the TN21 mer operon were studied using E. coli HMS174 harboring the reporter plasmids pRB28 and pOS14. lasmid pR...
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ROLE OF ORGANIC ACIDS IN PROMOTING COLLOIDAL TRANSPORT OF MERCURY FROM MINE TAILINGS. (R827634) |
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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 SURFACE FUNCTIONAL GROUPS IN THE CAPTURE OF ELEMENTAL MERCURY AND MERCURIC CHLORIDE BY ACTIVATED CARBONS |
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The paper discusses using a laboratory-scale, fixed bed apparatus to study the role of surface functional groups (SFGs) in the capture of mercuric chloride (HgC12) and elemental me...
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SAMPLING AND ANALYSIS OF MERCURY IN CRUDE OIL |
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Sampling and analytical procedures used to determine total mercury content in crude oils were examined. Three analytical methods were compared with respect to accuracy, precision ...
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SCIENTIFIC UNCERTAINTIES IN ATMOSPHERIC MERCURY MODELS II: SENSITIVITY ANALYSIS IN THE CONUS DOMAIN |
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In this study, we present the response of model results to different scientific treatments in an effort to quantify the uncertainties caused by the incomplete understanding of merc...
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SCIENTIFIC UNCERTAINTIES IN ATMOSPHERIC MERCURY MODELS III: BOUNDARY AND INITIAL CONDITIONS, MODEL GRID RESOLUTION, AND HG(II) REDUCTION MECHANISMS |
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In this study we investigate the CMAQ model response in terms of simulated mercury concentration and deposition to boundary/initial conditions (BC/IC), model grid resolution (12- v...
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SEASONAL VARIATIONS OF DISSOLVED MERCURY CONCENTRATIONS AT THE SULPHUR BANK MERCURY MINE, CLEAR LAKE, CALIFORNIA: IMPLICATIONS FOR MINE DRAINAGE MONITORING |
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The Sulphur Bank Mercury Mine in Lake County, California (SBMM) was operated from the 1860s through the 1950s. Mining for sulfur started with surface operations and then progresse...
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SEDIMENT CHEMICAL CONTAMINATION AND TOXICITY ASSOCIATED WITH A COASTAL GOLF COURSE COMPLEX. |
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The increasing density of golf courses represents a potential source of sediment contamination to nearby coastal areas, the chemical and biological magnitude of which is almost unk...
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SEDIMENT MICROBIAL COMMUNITY STRUCTURE AND MERCURY METHYLATION IN MERCURY-POLLUTED CLEAR LAKE, CALIFORNIA. (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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SEDIMENT TOXICOLOGY TESTING, ISSUES AND METHODS |
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The significant role that sediments play in aquatic ecosystems is well known. They serve as both a sink and a source of organic and inorganic materials, where critical cycling proc...
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SELECTED WATER DECONTAMINATION RESEARCH PROJECT |
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The Water Environment Federation (WEF), through funding from the U.S. Environmental Protection Agency (EPA) and the Agency's Office of Research and Development (ORD), will host the...
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SELECTIVE CATALYTIC REDUCTION MERCURY FIELD SAMPLING PROJECT |
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The report details an investigation on the effect of selective catalytic reduction (SCR), selective noncatalytic reduction (SNCR), and flue gas conditioning on the speciation and ...
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SENSITIVITY OF THE CMAQ MERCURY MODEL TO GAS-PHASE OXIDATION CHEMISTRY |
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Simulations of the Community Multi-scale Air Quality (CMAQ) model for mercury have shown the vast majority of the mercury deposited in the United States to be in the form of oxidiz...
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SEPARATIONS RESEARCH AT THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY - TOWARDS RECOVERY OF VOCS AND METALS USING MEMBRANES AND ADSORPTION PROCESSES |
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The USEPA's National Risk Management Research Laboratory is investigating new separations materials and processes for removal and recovery of volatile organic compounds (VOCs) and ...
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SERAFM: AN ECOLOGICAL RISK ASSESSMENT TOOL FOR EVALUATING WILDLIFE EXPOSURE RISK ASSOCIATED WITH MERCURY-CONTAMINATED SEDIMENT IN LAKE AND RIVER SYSTEMS |
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A spreadsheet model, SERAFM, Spreadsheet-based Ecological Risk Assessment for the Fate of Mercury, was developed that can be used as a risk assessment tool for mercury contaminated...
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SEVERAL MECHANISMS OF MERCURY RESISTANCE FOUND IN SOIL ISOLATES FROM PAVLODAR, KAZAKHSTAN |
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Abdrashitova, Svetlava A., M.A. Ilyushchenko, A. Yu Kalmykv, S.A. Aitkeldieva, Wendy J. Davis-Hoover and Richard Devereux. In press. Several Mechanisms of Mercury Resistance Found ...
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SIMULATION AND EVALUATION OF ELEMENTAL MERCURY CONCENTRATION INCREASE IN FLUE GAS ACROSS A WET SCRUBBER |
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Experimental data from a laboratory scale wet scrubber simulator confirmed that oxidized mercury can be reduced by aqueous speciesand results in elemental mercury emissions under t...
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SIMULTANEOUS CONTROL OF HG(0), SO2, AND NOX BY NOVEL OXIDIZED CALCIUM-BASED SORBENTS |
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The paper gives results of an investigation of two classes of calcium (Ca)-based sorbents (hydrated limes and silicate compounds). {NOTE: Efforts to develop multipollutant control ...
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SIMULTANEOUS CONTROL OF HG(0), SO2, AND NOX BY NOVEL OXIDIZED CALCIUM-BASED SORBENTS: JOURNAL ARTICLE |
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NRMRL-RTP-P-593a Ghorishi, S.B., Singer, C., Jozewicz, W., Sedman*, C.B., and Srivastava*, R.K. Simultaneous Control of Hg(0), SO2, and NOx by Novel Oxidized Calcium-Based Sorbent...
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SIMULTANEOUS CONTROL OF HGO, SO2, AND NOX BY NOVEL OXIDIZED CALCIUM-BASED SORBENTS |
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The paper gives results of an investigation of two classes of calcium (Ca)-based sorbents (hydrated limes and silicate compounds). (NOTE: Efforts to develop multipollutant control...
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SIMULTANEOUS CONTROL OF SO2, NOX, AND MERCURY EMISSIONS FROM COAL-FIRED BOILERS |
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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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SINGLE-LABORATORY EVALUATION AND MODIFICATION OF U.S. EPA (ENVIRONMENTAL PROTECTION AGENCY) METHODS 7470 AND 7471 FOR THE DETERMINATION OF MERCURY IN AQUEOUS AND SOLID HAZARDOUS WASTES (JOURNAL VERSION) |
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The current U.S. Environmental Protection Agency (U.S. EPA) protocols for mercury determinations in aqueous and solid waste samples (SW-846 Methods 7470 and 7471) using recirculati...
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SITE - EMERGING TECHNOLOGY: REMOVAL AND RECOVERY OF METAL IONS FROM GROUNDWATER |
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A series of laboratory tests and an on-site pilot scale demonstration of Bio-Recovery Systems' AlgaSORB technology for the removal and recovery of mercury-contaminated groundwater ...
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SITE - EMERGING TECHNOLOGY: REMOVAL AND RECOVERY OF METAL IONS FROM GROUNDWATER - APPENDICES |
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A series of laboratory tests and an on-site pilot scale demonstration of Bio-Recovery Systems' AlgaSORB technology for the removal and recovery of mercury-contaminated groundwater ...
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SIX-YEAR TREND (1990-1995) OF WET MERCURY DEPOSITION IN THE UPPER MIDWEST, USA |
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Precipitation maxima occurences in the Upper Midwest in 1993 significantly affected total mercury concentrations and deposition as compared with 1990-92, 1994, and 1995. Methylmerc...
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SIX-YEAR TREND (1990-1995) OF WET MERCURY DEPOSITION IN THE UPPER MIDWEST, USA |
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See the published paper for the abstract....
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SIZE-SEGREGATED PARTICULATE MERCURY MEASUREMENTS IN STEUBENVILLE, OH AND DETROIT, MI, USA |
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This poster presents data on size-segregated particulate-phase mercury made during field intensive measurements in Steubenville, OH and Detroit, MI in 2004. The goal was to obtain...
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SMALL-CHAMBER DETERMINATIONS OF THE EMISSION RATES OF MERCURY FROM LATEX PAINTS |
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The paper gives results of testing five latex paints, containing organic mercury additives, in small environmental test chambers to determine the emission rates of mercury. wo of t...
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SO2 SCRUBBING TECHNOLOGIES: A REVIEW |
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Electricity generating units may use sulfur dioxide (SO2) scrubbers to meet the requirements of Phase II of the Acid Rain S02 Reduction Program. Additionally, the use of scrubbers ...
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SO2 SCRUBBING TECHNOLOGIES: A REVIEW: JOURNAL ARTICLE |
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NRMRL-RTP-P-585 Srivastava*, R.K., Jozewicz, W., and Singer, C. SO2 Scrubbing Technologies: a Review. Environmental Progress 20 (4):219-227 (2001). EPA/600/J-02/022, Availabl...
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SOLAR UV RADIATION AND AQUATIC BIOGEOCHEMISTRY |
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During the past decade significant interest has developed in the influence of solar UV radiation on biogeochemical cycles in surface waters of lakes and the sea. A major portion o...
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SORPTION OF ELEMENTAL MERCURY BY ACTIVATED CARBONS |
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The paper gives results of a study of the mechanisms and rate of elemental mercury (Hg) capture by activated carbons, using a bench-scale apparatus. hree types of activated carbons...
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SOURCE ASSESSMENT: COAL REFUSE PILES, ABANDONED MINES AND OUTCROPS, STATE-OF-THE-ART |
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This report describes a study of atmospheric emissions from coal refuse piles, abandoned mines, and outcrops. The potential environmental effect of the source was evaluated using s...
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SOURCES OF MERCURY WET DEPOSITION IN EASTERN OHIO, USA |
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In the fall of 2002, an enhanced air monitoring site was established in Steubenville, Ohio as part of a multi-year comprehensive mercury monitoring and source apportionment study t...
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SOURCES OF MERCURY WET DEPOSITION IN STEUBENVILLE, OHIO |
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This paper will present wet deposition data and source apportionment modeling results from daily event precipitation samples collected during the calendar years 2003-2004....
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SOUTH FLORIDA ECOSYSTEM ASSESSMENT PROJECT: FINAL TECHNICAL REPORT - PHASE I |
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The South Florida Ecosystem Assessment Project is an innovative, large-scale monitoring and assessment program designed to measure current and changing conditions of ecological res...
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SOUTH FLORIDA MERCURY MONITORING AND MODELING PILOT STUDY |
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In 1995, the South Florida Atmospheric Mercury Monitoring Study was established to investigate several likely sources of Hg, as well as transport and deposition mechanisms. Fiel...
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SPATIAL AND TEMPORAL PATTERNS IN MERCURY CONTAMINATION IN SEDIMENTS OF THE LAURENTIAL GREAT LAKES |
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Data from recent sediment surveys have been collated and mapped in order to determine the spatial distribution of mercury in sediments across the entire Great Lakes basin. Informat...
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SPATIAL EXPLICIT POPULATION MODELS FOR RISK ASSESSMENT: COMMON LOONS AND MERCURY AS A CASE STUDY |
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Factors that significantly impact population dynamics, such as resource availability and exposure to stressors, frequently vary over space and thereby determine the heterogeneous s...
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SPECIATION AND CAPTURE OF MERCURY IN INCINERATORS AND WASTE-TO-ENERGY PLANTS |
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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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SPECIATION OF MERCURY IN THE PRESENCE OF COAL AND WASTE COMBUSTION FLY ASHES |
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The paper gives results of a study that focused on the oxidation of elemental mercury (Hgo) in the presence of both complex, four-component, model fly ashes, and actual coal combus...
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STABILIZATION AND TESTING OF MERCURY CONTAINING WASTES: BORDEN CATALYST |
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This report was submitted by the University of Cincinnati (UC) in fulfillment of Contract No. 68-C7-0057 under the sponsorship of the U.S. Environmental Protection Agency (EPA). ...
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STABILIZATION AND TESTING OF MERCURY CONTAINING WASTES: BORDEN SLUDGE |
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This report details the stability assessment of a mercury containing sulfide treatment sludge. Information contained in this report will consist of background data submitted by the...
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STABILIZATION AND TESTING OF MERCURY CONTAINING WASTES: BORDEN SLUDGE |
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This report details the stability assessment of a mercury containing sulfide treatment sludge. Information contained in this report will consist of background data submitted by th...
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STABILIZATION OF MERCURY IN WASTE MATERIAL FROM THE SULFUR BANK MERCURY MINE, INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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Three innovative technologies for stabilization of mercury were demonstrated in a treatability study performed on two waste rock materials from the Sulfur Bank Mercury Mine, a Supe...
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STANDARDIZED AUTOMATED AND MANUAL METHODS TO SPECIATE MERCURY: FIELD AND LABORATORY STUDIES |
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The urban atmosphere contains a large number of air pollutants including mercury. Atmospheric mercury is predominantly present in the elemental form (Hg0). However emissions fr...
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STANDARDIZED AUTOMATED AND MANUAL METHODS TO SPECIATE MERCURY: FIELD AND LABORATORY STUDIES |
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The urban atmosphere contains a large number of air pollutants including mercury. Atmospheric mercury is predominantly present in the elemental form (Hg0). However emissions fr...
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STATE REVIEW OF MERCURY CONTROL OPTIONS FOR COAL-FIRED POWER PLANTS. (R827649) |
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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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STATUS ASSESSMENT OF TOXIC CHEMICALS: MERCURY |
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This report lists the properties, production sources, amounts, and uses of mercury. Mercury pollution figures, sources, health effects, environmental significance, and control tech...
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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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STATUS OF RESEARCH ON AIR QUALITY: MERCURY, TRACE ELEMENTS, AND PARTICULATE MATTER. (R827649) |
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The Air Quality Conference reviewed the state of science and policy on the pollutants mercury, trace elements, and particulate matter (PM) in the environment. Critical issues de...
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STATUS OF SO2 SCRUBBING TECHNOLOGIES |
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The paper presents the extent of current sulfur dioxide (SO2) scrubber applications on electricity generating units in the U.S. and abroad. The technical performance of recent SO2...
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STRUCTURES OF THE REDUCED AND MERCURY-BOUND FORMS OF MERP, THE PERIPLASMIC PROTEIN FROM THE BACTERIAL MERCURY DETOXIFICATION SYSTEM. (R823576) |
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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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STUDIES ON THE DEPURATION OF CADMIUM AND COPPER BY THE AMERICAN OYSTER 'CRASSOSTREA VIRGINICA' |
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Few studies concerned with the accumulation of trace metals by the oyster have dealt with depuration. Depuration, or a loss of metal, has been observed during gametogenesis. Spawni...
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STUDY OF MERCURY OXIDATION BY SCR CATALYST IN AN ENTRAINED-FLOW REACTOR UNDER SIMULATED PRB CONDITIONS |
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A bench-scale entrained-flow reactor system was constructed for studying elemental mercury oxidation under selective catalytic reduction (SCR) reaction conditions. Simulated flue g...
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STUDY OF SPECIATION OF MERCURY UNDER SIMULATED SCR NOX EMISSION CONTROL CONDITIONS |
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The paper focuses on the impact of SCR on elemental mercury (Hg0) oxidation. It describes the results of bench-scale experiments conducted to investigate Hg0 oxidation in the prese...
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STUDY OF THE EFFECT OF CHLORINE ADDITION ON MERCURY OXIDATION BY SCR CATALYST UNDER SIMULATED SUBBITUMINOUS COAL FLUE GAS |
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An entrained flow reactor is used to study the effect of addition of chlorine-containing species on the oxidation of elemental mercury (Hgo)by a selective catalytic reduction (SCR)...
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STUDY OF THE FUNDAMENTALS OF MERCURY SPECIATION IN COAL-FIRED BOILERS UNDER SIMULATED POST-COMBUSTION CONDITIONS |
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The report discusses a continuation of the study on mercury speciation initiated in the fiscal year 1997 (FY97). The previous study found that cupric oxide (CuO) and ferric oxide (...
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SULFATE-REDUCING BACTERIA METHYLATE MERCURY AT VARIABLE RATES IN PURE CULTURE AND IN MARINE SEDIMENTS. (R825513C025) |
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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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SUMMARY REVIEW OF HEALTH EFFECTS ASSOCIATED WITH MERCURIC CHLORIDE: HEALTH ISSUE ASSESSMENT |
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Mercuric chloride (HgCl2) is a white crystalline substance that is currently used as a catalyst or reagent in various chemical reactions, and to a lesser extent as a disinfectant o...
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SUMMER FISH COMMUNITY OF THE COASTAL NORTHERN GULF OF MEXICO: CHARACTGERIZATION OF A LARGE-SCALE TRAWL SURVEY |
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This paper summarizes the trawled fish assemblage collected during 1992 - 1994 at 119 locations in the northern Gulf of Mexico. The 367 collection sites were located adjacent to fi...
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SUNLIGHT AND IRON(III)-INDUCED PHOTOCHEMICAL PRODUCTION OF DISSOLVED GASEOUS MERCURY IN FRESHWATER. (R827632) |
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Mechanistic understanding of sunlight-induced natural processes for
production of dissolved gaseous mercury (DGM) in freshwaters has remained
limited, and few direct fie...
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Seeking More Effective Management of Freshwater Pollution |
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The atmosphere contains airborne pollutants such as mercury, nitrogen
oxides, and sulfur oxides released from automobiles, factories, and power plants. Similarly, land surfaces su...
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Simulating Runoff from a Grid Based Mercury Model: Flow Comparisons |
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Several mercury cycling models, including general mass balance approaches, mixed-batch reactors in streams or lakes, or regional process-based models, exist to assess the ecologica...
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Speciation, Characterization, And Mobility Of As, Se and Hg In Flue Gas Desulphurization Residues |
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Flue gas from coal combustion contains significant amounts of volatile toxic trace elements such as arsenic (As), selenium (Se) and mercury (Hg). The capture of these elements in t...
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Speciation, Characterization, And Mobility Of As, Se, and Hg In Flue Gas Desulphurization Residues |
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Flue gas from coal combustion contains significant amounts of volatile elements, such as arsenic (As), selenium (Se) and mercury (Hg), which could lead to serious environmental hea...
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Sulfur and Nitrogen Deposition on Ecosystems in the United States |
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The ecological impacts of atmospheric sulfur and nitrogen deposition first gained attention in the United States in the early 1970s with reports of "acid rain" falling to earth, ca...
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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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TECHNIQUES FOR COLLECTION AND ANALYSIS OF BIOTA AND SEDIMENT FOR MERCURY |
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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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TECHNOLOGY EVALUATION REPORT: MAGNUM WATER TECHNOLOGY CAV-OX CAVITATION OXIDATION PROCESS |
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This report evaluates the CAV-OX cavitation oxidation process's ability to remove volatile organic compounds (VOC) present in aqueous wastes. he CAV-OX process was developed by Mag...
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TECHNOLOGY EVALUATION REPORT: PEROX-PURE CHEMICAL OXIDATION TECHNOLOGY |
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This report evaluates the perox-pure chemical oxidation technology's ability to remove volatile organic compounds (VOC) and other organic contaminants present in liquid wastes. his...
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TELEPHONIC PRESENTATION: MERCURY MEASUREMENTS FOR SOLIDS MADE RAPIDLY, SIMPLY, AND INEXPENSIVELY |
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While traditional methods for determining mercury in solid samples involve the use of aggressive chemicals to dissolve the matrix and the use of other chemicals to properly reduce ...
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TEST METHODS TO DETERMINE THE MERCURY EMISSIONS FROM SLUDGE INCINERATION PLANTS |
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Two test methods for mercury are described along with the laboratory and field studies done in developing and validating them. One method describes how to homogenize and analyze la...
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TESTING FOR DEVELOPMENTAL NEUROTOXICITY: CURRENT APPROACHES AND FUTURE NEEDS. |
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There are many adverse effects on the nervous system following exposure to environmental chemicals during development. In a number of cases (e.g., lead, methyl mercury) the deve...
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TESTING LANDSCAPE INDICATORS FOR STREAM CONDITION RELATED TO PESTICIDES AND NUTRIENTS: LANDSCAPE INDICATORS FOR PESTICIDES STUDY FOR MID-ATLANTIC COASTAL STREAMS (LIPS-MACS) |
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This research plan for the Landscape Indicators for Pesticides Study ? Mid-Atlantic Coastal Streams (LIPS-MACS) describes the rational and approach of developing a research projec...
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THE 2006 CMAQ RELEASE AND PLANS FOR 2007 |
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The 2006 release of the Community Multiscale Air Quality (CMAQ) model (Version 4.6) includes upgrades to several model components as well as new modules for gas-phase chemistry and...
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THE ADVANTAGE OF ILLINOIS COAL FOR FGD REMOVAL OF MERCURY |
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The paper gives results of an investigation conducted to characterize and modify mercury (Hg) speciation in Illinois coal combustion flue gas so that a Hg control strategy can be i...
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THE ATMOSPHERIC CYCLING AND AIR-SEA EXCHANGE OF MERCURY SPECIES IN THE SOUTH AND EQUATORIAL ATLANTIC OCEAN. (R829796) |
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Measurements of gas-, particle- and precipitation-phases of atmospheric mercury
(Hg) were made in the South and equatorial Atlantic Ocean as part of the 1996
IOC Trace...
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THE BEHAVIOR OF MICROORGANISMS RESISTANT TO MERCURY FROM PAVLODAR, KAZAKHSTAN |
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There is extensive mercury contamination surrounding a chloralkali plant in Pavlodar, Kazakhstan that operated from 1970 to 1990. High-level mercury contamination exists within the...
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THE CHEMICAL CYCLE AND BIOACCUMULATION OF MERCURY. (R824778) |
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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 DETERMINATION OF MERCURY SPECIES AND MULTIPLE METALS IN COAL COMBUSTION EMISSIONS USING IODINE-BASED IMPINGERS AND DIRECT INJECTION NEBULIZATION - INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY ANALYSIS |
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Mercury (Hg) emissions from coal utilities are difficult to control. Hg eludes capture by most air pollution control devices (APCDs). To determine the gaseous Hg species in stack...
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THE DEVELOPMENT OF A PREDICTIVE TOLL USING LARGEMOUTH BASS (MICROPTERUS SALMOIDES) SCALES TO ESTIMATE MERCURY (HG) CONCENTRATIONS AND STABLE-NITROGEN (15N/14N) ISOTOPE RATIOS IN FISH MUSCLE TISSUE |
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Knowledge of the trophic structure of biota in aquatic sites offers potential for the construction of models to allow the prediction of contaminant bioaccumulation. Measurements of...
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THE DEVELOPMENT OF IODINE BASED IMPINGER SOLUTIONS FOR THE EFFICIENT CAPTURE OF HG USING DIRECT INJECTION NEBULIZATION - INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY ANALYSIS |
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Inductively coupled plasma mass spectrometry (ICP/MS) with direct injection nebulization (DIN) was used to evaluate novel impinger solution compositions capable of capturing elemen...
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THE DISTRIBUTION OF CADMIUM AND OTHER METALS IN HUMAN TISSUES |
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The study investigates the relationship between cadmium, lead, zinc and mercury burdens and age in five different autopsy tissues. Approximately 30 autopsy cases in each of five ag...
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THE DRY DEPOSITION OF SPECIATED MERCURY TO THE FLORIDA EVERGLADES: MEASUREMENTS AND MODELING |
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The Florida Everglades Dry-Deposition Study (FEDDS) was designed to test the viability of using new and existing measurement techniques in the estimation of the dry-depositional lo...
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THE EFFECT OF ACTIVATED CARBON SURFACE MOISTURE ON LOW TEMPERATURE MERCURY ADSORPTION |
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Experiments with elemental mercury (Hg0) adsorption by activated carbons were performed using a bench-scale fixed-bed reactor at room temperature (27 degrees C) to determine the ro...
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THE EFFECT OF ENVIRONMENTAL CHEMICALS ON HUMAN HEALTH |
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Humans and animals have always been exposed to chemicals in our environments - natural products in foods, smoke from cooking fires, sewage in drinking water, pesticides from plants...
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THE EFFECT OF ENVIRONMENTAL CHEMICALS ON HUMAN HEALTH -- USCF |
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Humans and animals have always been exposed to chemicals in our environment - natural products in foods, smoke from cooking fires, sewage in drinking water, pesticides from plants....
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THE EFFECT OF GESTATIONAL MERCURY VAPOR EXPOSURE ON RAT BRAIN A-SYNUCLEIN EXPRESSION. |
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Alpha-synuclein is a highly conserved protein that localizes to pre-synaptic terminals and is thought to play a role in neuronal plasticity. It is upregulated developmentally and ...
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THE EFFECT OF MERCURY AND PCB'S ON ORGANISMS FROM LOWER TROPHIC LEVELS OF A GEORGIA SALT MARSH. (R825147) |
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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 EFFECT OF MERCURY AND PCBS ON ORGANISMS FROM LOWER TROPHIC LEVELS OF A GEORGIA SALT MARSH. (R825147) |
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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 EFFECT OF SALINITY ON RATES OF ELEMENTAL MERCURY AIR/WATER EXCHANGE |
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The U.S. EPA laboratory in Athens, Georgia i spursuing the goal of developing a model for describing toxicant vapor phase air/water exchange under all relevant environmental condit...
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THE EFFECT OF WATER (VAPOR-PHASE) AND CARBON ON ELEMENTAL MERCURY REMOVAL IN A FLOW REACTOR |
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The paper gives results of studying the effect of vapor-phase moisture on elemental mercury (Hgo) removal by activated carbon (AC) in a flow reactor. tests involved injecting AC in...
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THE EFFECTS OF MERCURY ON DEVELOPING LARVAE OF 'RHITHROPANOPEUS HARRISII' (GOULD). I. INTERACTIONS OF TEMPERATURE, SALINITY AND MERCURY ON LARVAL DEVELOPMENT |
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Larvae of the estuarine xanthid crab Rhithropanopeus harrisii were reared in the laboratory from hatch through completion of metamorphosis to postlarva in 64 combinations of temper...
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THE EFFECTS OF THE COASTAL ENVIRONMENT ON THE ATMOSPHERIC MERCURY CYCLE |
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Atmospheric mercury (Hg) species were investigated on the East Coast of Florida during June 2000. The site was impacted by air mass transport from the Atlantic Ocean and Souther...
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THE EPA/DOE MINE WASTE TECHNOLOGY PROGRAM |
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Mining activities in the US (not counting coal) produce between 1-2B tons of mine waste annually. Since many of the ore mines involve sulfide minerals, the production of acid mine ...
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THE HERMAN PIT AND ITS ROLE IN MERCURY TRANSPORT AT THE SULPHUR BANK MERCURY MINE SUPERFUND SITE, CLEAR LAKE, CALIFORNIA |
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The Sulphur Bank Mercury Mine (SBMM) is an abandoned sulphur and cinnabar mine located on the eastern shore of the Oaks Arm of Clear Lake, Lake County, California. SBMM was one of...
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THE IMPORTANCE OF CONCURRENT MONITORING AND MODELING FOR UNDERSTANDING MERCURY EXPOSURE IN THE ENVIRONMENT |
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Understanding the cycling processes governing mercury exposure in the environment requires sufficient process-based modeling and monitoring data. Monitoring provides ambient concen...
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THE IMPORTANCE OF EMISSIONS SPECIATION TO THE ATMOSPHERIC TRANSPORT AND DEPOSITION OF MERCURY |
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The atmospheric pathway of the global mercury cycle is believed to be the main source of mercury contamination to aquatic eco-systems throughout the United States and in most other...
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THE INFLUENCE OF SULFIDE ON MERCURY BIOAVAILABILITY FOR METHYLATION BY PURE CULTURES OF DESULFOBULBUS PROPRIONICUS. (R827653) |
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To help understand the mechanism and control of Hg
uptake in Hg-methylating bacteria, we investigated the effect
of sulfide on Hg methylation by pure cultures of the sulfa...
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THE INFLUENCE OF SULFIDE ON SOLID-PHASE MERCURY BIOAVAILABILITY FOR METHYLATION BY PURE CULTURES OF DESULFOBULBUS PROPIONICUS (1PR3). (R827631) |
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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 SULFIDE ON SOLID-PHASE MERCURY BIOAVAILABILITY FOR METHYLATION BY PURE CULTURES OF DESULFOBULBUS PROPIONICUS (1PR3). (R827653) |
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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 MODELING OF REGIONAL-SCALE ATMOSPHERIC MERCURY TRANSPORT AND DEPOSITION USING RELMAP |
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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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THE MONITORING AND MODELING OF MERCURY SPECIES IN SUPPORT OF LOCAL, REGIONAL, AND GLOBAL MODELING |
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Cyrill Brosset, as early as 1979, recognized through research on the chemical forms of mercury in rain and in the air in Sweden and the Baltic States that (i) coal fired utility ...
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THE NORTH AMERICAN MERCURY MODEL INTER-COMPARISON STUDY (NAMMIS) |
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This paper describes the North American Mercury Model Inter-comparison Study (NAMMIS). The NAMMIS is an effort to apply atmospheric Hg models in a tightly constrained testing envir...
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THE ONTARIO HYDRO METHOD FOR SPECIATED MERCURY MEASUREMENTS: ISSUES AND CONSIDERATIONS |
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The Ontario Hydro (OH) method has been developed for the measurement of total and speciated mercury emissions from coal-fired combustion sources. The OH method was initially develo...
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THE RELEASE OF IRON FROM DIFFERENT ASBESTOS STRUCTURES BY HYDROGEN PEROXIDE WITH CONCOMITANT O2 GENERATION |
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With the single exception of mercury, all metals in the atmosphere are associated with particles. The lungs are subsequently exposed to metals present in air pollution particles on...
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THE ROLE OF APOPTOSIS IN NEUROTOXICOLOGY. |
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The role of apoptosis in neurodegeneration in developing animals and in adults has become increasingly apparent in the past ten years. Normal apoptosis occurs in the CNS from the e...
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THE ROLE OF AQUEOUS THIN FILM EVAPORATIVE COOLING ON RATES OF ELEMENTAL MERCURY AIR-WATER EXCHANGE UNDER TEMPERATURE DISEQUILIBRIUM CONDITIONS |
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The technical conununity has only recently addressed the role of atmospheric temperature variations on rates of air-water vapor phase toxicant exchange. The technical literature ha...
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THE ROLE OF COAL PROPERTIES AND COMBUSTION CONDITIONS IN THE CAPTURE OF MERCURY BY FLY ASH AND SORBENTS |
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The U. S. fleet of coal-fired power plants, with generating capacity of just over 300 GW, is known to be the major anthropogenic source of domestic mercury (Hg) emissions. As such...
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THE ROLE OF MICROORGANISMS IN ELEMENTAL MERCURY FORMATION IN NATURAL WATERS. (R824778) |
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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 ROLE OF TEMPERATURE DISEQUILIBRIUM IN MONITORING LOW VOLATILITY CONTAMINANT MIGRATION |
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Temperature disequilibrium is a common phenomenon within and among envirornnental media at local regional continental and global scales. The significance of temperature disequilibr...
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THE SOURCE OF THE ANOMALOUS CATHODIC PEAK DURING ASV WITH IN SITU MERCURY FILM FORMATION IN CHLORIDE SOLUTIONS. (R825511C022) |
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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 US MERCURY EMISSION INVENTORY FOR THE ARCTIC COUNCIL ACTION PLAN |
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The Arctic Council, having agreed to act to reduce exposures to a number of priority pollutants in the Arctic region, has initiated a mercury project via the Arctic Council Plan ...
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THE US MERCURY EMISSION INVENTORY FOR THE ARCTIC COUNCIL ACTION PLAN |
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The Arctic Council, having agreed to act to reduce exposures to a number of priority pollutants in the Arctic region, has initiated a mercury project via the Arctic Council Action ...
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THE USE OF LOCAL MERCURY DEPOSITION MEASUREMENTS IN MODELING THE FATE, TRANSPORT AND BIOACCUMULATION OF METHYLMERCURY ON THE CHEYENNE RIVER SIOUX TRIBAL LANDS |
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Managed farm ponds on Sioux Tribal lands were monitored as a part of a two year study to address the variation in methylmercury bioaccumulation in fishes from 2003-2004. Initial t...
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THEORETICAL INVESTIGATION OF SELECTED TRACE ELEMENTS IN COAL GASIFICATION PLANTS |
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The report gives results of a theoretical investigation of the disposition of five volatile trace elements (arsenic, boron, lead, selenium, and mercury) in SNG-producing coal gasif...
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THERMODYNAMIC REACTION CONSTANTS FOR MODELING AQUEOUS ENVIRONMENTAL MERCURY SPECIATION |
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Unacceptably high fish tissue mercury residues are responsible for the majority of fish consumption advisories issued in 48 states of the United States of America. Mercury also ha...
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THREE NEW TECHNIQUES FOR FLOATING POLLUTANT SPILL CONTROL AND RECOVERY |
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Hazardous material (HM) spills pose serious problems in terms of the very poor visibility often attending such situations. No operational capability exists at night or other period...
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TISSUE MERCURY CONCENTRATIONS AND POTENTIAL NEUROGPATHOLOGICAL CHANGES IN COMMON LOONS (GAVIA IMMER) |
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Common loons (Gavia immer) in New England are exposed to high levels of mercury through their diet. Mercury bioaccumulates through the food chain as methylmercury, a neurotoxin whi...
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TISSUE UPTAKE AND SUBCELLULAR DISTRIBUTION OF MERCURY |
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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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TOTAL AND METHYL MERCURY CONCENTRATIONS IN 1994-5 LAKE MICHIGAN FORAGE FISH |
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Forage fish samples were collected between 1194 and 1995 by the USGS Great Lakes Science Center in Ann Arbor, MI. Samples of bloater, slimy sculpin, deep water sculpin, alewife, an...
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TOTAL MERCURY IN WATERS OF THE TRENTON CHANNEL, DETROIT RIVER |
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Not available, just the overheads...
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TOXIC EFFECT OF WATER SOLUBLE POLLUTANTS ON FRESHWATER FISH |
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Studies of the effect of inorganic and organic mercury on trout indicated that uptake was primarily via the gills in non-feeding fish. Organic mercury entered fish at a faster rate...
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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 POLLUTANTS IN URBAN WET-WEATHER FLOWS: AN OVERVIEW OF THE MULTI-MEDIA TRANSPORT, IMPACTS, AND CONTROL MEASURES |
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This paper presents an overview of the transport of toxic pollutants through multiple media and drainage systems in the urban watershed during wet-weather periods. It includes the ...
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TOXIC TRACE METALS IN MAMMALIAN HAIR AND NAILS |
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Data have been compiled from the available world literature on the accumulation and bioconcentration of selected toxic trace metals in human hair and nails and other mammalian hair...
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TOXICITY OF MERCURIC CHLORIDE TO THE DEVELOPING RAT KIDNEY. 3. DISTRIBUTION AND ELIMINATION OF MERCURY DURING POSTNATAL MATURATION |
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Mercuric chloride is a potent nephrotoxin in the adult rat, but has little effect on newborns. Nephrotoxicity increases with postnatal maturation. The study assesses the changes in...
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TOXICITY OF SELECTED PRIORITY POLLUTANTS TO VARIOUS AQUATIC ORGANISMS |
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Toxicity tests were conducted with selected compounds listed by the United States Environmental Protection Agency (EPA) as priority pollutants. Acute toxicity information was deter...
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TOXICOKINETIC INTERACTIONS AND SURVIVAL OF HYALELLA AZTECA EXPOSED TO BINARY MIXTURES OF CHLORPYRIFOS, DIELDRIN, AND METHYL MERCURY |
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Chemical mixture interactions of chlorpyrifos, dieldrin, and methyl mercury were evaluated in Hyalella azteca. Survival of adult and juvenile organisms was evaluated following exp...
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TOXICOLOGICAL COMPARISON OF NATURAL AND CULTURED POPULATIONS OF ARACTIA TONSA TO CADMIUM, COPPER, AND MERCURY |
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Cultured Acartia tonsa manifested a reproducible toxicological response through six generations. There were no statistically significant differences in the responses of F1 and F6 g...
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TOXICOLOGICAL HIGHLIGHT (REDOX REDUX: A CLOSER LOOK AT CONCEPTAL LOW MOLECULAR WEIGHT THIOLS) |
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Glutathione (GSH) is present as the most abundant low molecular weight thiol (LMWT) in virtually all mitochondria-bearing eucaryotic cells, often at millimolar concentrations (Meis...
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TOXICOLOGICAL INTERACTIONS OF CHLORPYRIFOS AND METHYL MERCURY IN THE AMPHIPOD, HYALELLA AZTECA |
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The mechanism of interaction between chlorpyrifos, an organo-phosphate insecticide, and methyl mercury, an organometal, was assessed utilizing the amphipod, Hyalella azteca. Previo...
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TOXICOLOGY OF METALS. VOLUME II |
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The report on metal toxicology contains reviews on twenty-three metals. These have been written for inclusion in a Handbook on the Toxicology of Metals: Environmental and Occupatio...
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TRACE METAL AVAILABILITY TO PERIPHYTON COLONIZED BELOW NEAR-COASTAL WASTEWATER DISCHARGES IN THE GULF OF MEXICO |
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The significance of the many wastewater discharges in the Gulf of Mexico region as sources of trace metal contamination to indigenous biota in nearby coastal areas is relatively u...
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TRACE METAL TRANSFORMATION MECHANISMS DURING COAL COMBUSTION |
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The article reviews mechanisms governing the fate of trace metals during coal combustion and presents new theoretical results that interpret existing data. Emphasis is on predictin...
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TRACE METAL TRANSFORMATION MECHANISMS DURING COAL COMBUSTION |
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The article reviews mechanisms governing the fate of trace metals during coal combustion and presents new theoretical results that interpret existing data. mphasis is on predicting...
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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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TREATMENT TECHNOLOGY TO MEET THE INTERIM PRIMARY DRINKING WATER REGULATIONS FOR INORGANICS |
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The EPA established drinking water regulations for ten inorganic substances and radionuclides that became effective on June 24, 1977. As a result of these regulations, many communi...
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TREATMENT TECHNOLOGY TO MEET THE INTERIM PRIMARY DRINKING WATER REGULATIONS FOR INORGANICS: PART 4 |
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EPA established drinking water regulations for ten inorganic substances and radionuclides that became effective on June 24, 1977. As a result of these new regulations, many communi...
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TROPHIC ACCUMULATION AND DEPURATION OF MERCURY BY BLUE CRABS (CALLINECTES SAPIDUS) AND PINK SHRIMP (PENAEUS DUORARUM). |
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Mercury concentrations in blue crabs (Callinectes sapidus) collected from an area of mercury-contaminated sediments in Lavaca Bay, TX, USA, are more than an order of magnitude gre...
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TWO NO-LETHAL SAMPLING TECHNIQUES FOR THE PREDICTION OF HG IN LARGEMOUTH BASS |
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Platform presentation at a scientific conference...
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The Effect of Environmental Chemicals on Human Health -- CJA |
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Humans and animals have always been exposed to chemicals in our environment - natural products in foods, smoke from cooking fires, sewage in drinking water, pesticides from plants....
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The Effect of Lateral Boundary Values on Atmospheric Mercury Simulations with the CMAQ Model |
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Simulation results from three global-scale models of atmospheric mercury have been used to define three sets of initial condition and boundary condition (IC/BC) data for regional-s...
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The North American Mercury Model Intercomparison Study (NAMMIS). Study Description and Model-to-Model Comparison |
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This manuscript provides a description of the North American Mercury Model Intercomparison Study (NAMMIS) and results obtained from that study. The NAMMIS was conducted by EPA/NER...
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The Occurrence of Contaminant Accumulation in Lead Pipe Scales from Domestic Drinking Water Distribution Systems-ABSTRACT |
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Previous work has shown that contaminants such as Al, As and Ra, can accumulate in drinking water distribution system solids. The release of accumulated contaminants back into the ...
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U.S. ARMY CORPS OF ENGINEERS ABANDONED MINE LAND REMEDIATION WORKSHOP |
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Mining activities in the US (not counting coal) produce 1-2 billion tons of mine waste annually. Since many of the ore mines involve sulfide minerals, the production of acid mine d...
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U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA) ENVIRONMENTAL TECHNOLOGY VERIFICATION (ETV) PROGRAM: MERCURY CONTINUOUS EMISSION MONITORS |
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The U.S. Environmental Protection Agency (EPA) Environmental Technology Verification (ETV) program evaluates the performance of innovative air, water, pollution prevention and moni...
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U.S. EPA MODELS-3/CMAQ - STATUS AND APPLICATIONS |
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An advanced third-generation air quality modeling system has been developed by the Atmospheric Modeling Division of the U.S. EPA. The air quality simulation model at the heart o...
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U.S. MERCURY RECYCLERS PROVIDE EXPANDED PROCESS CAPABILITIES |
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This article summarizes the treatment capabilities of U.S. plants recovering mercury from a variety of secondaries. here are six non-captive U.S. operations that accept various typ...
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U.S.-MEXICO BORDER PROGRAM ARIZONA BORDER STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF HUMAN HAIR (UA-F-26.0) |
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The purpose of this SOP is to describe how to collect, store, and ship human hair for analysis of mercury. This SOP provides a brief description of the sample containers, collecti...
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U.S.-MEXICO BORDER PROGRAM ARIZONA BORDER STUDY--STANDARD OPERATING PROCEDURE FOR LABORATORY ANALYSIS OF HAIR SAMPLES FOR MERCURY (RTI-L-1.0) |
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The purpose of this protocol is to provide guidelines for the analysis of hair samples for total mercury by cold vapor atomic fluorescence (CVAFS) spectrometry. This protocol desc...
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ULTRAVIOLET DISINFECTION OF WATER FOR SMALL WATER SUPPLIES |
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In the study ultraviolet radiation was considered as an alternative means of disinfection of small drinking water supplies. A major impetus for the study was the large increase in ...
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UNDERSTANDING MERCURY FATE AND TRANSPORT FROM SOURCES TO DEPOSITION |
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ORD's atmospheric mercury research produces information to improve the understanding of mercury transport and fate from the point of emission into the atmosphere to its deposition ...
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UNDERSTANDING THE IMPACT OF ENVIRONMENTAL VARIABLES ON THE LEACHING OF MERCURY-CONTAMINATED MINE WASTES FROM THE SULFUR BANK MERCURY MINE, CLEAR LAKE, CA |
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For nearly a century, Clear Lake in northern California has received inputs of mercury (Hg) mining wastes trom the Sulfur Bank Mercury Mine (SBMM). About 1.2 million tons of Hg-con...
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UNIQUE CHEMISTRY SOLUTIONS TO REGIONAL ISSUES |
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Many of ORD's research projects relate to broad scientific themes, such as biological and chemical indicators or computational toxicology .Others are discrete studies resulting fro...
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UPPER GREAT LAKES CONNECTING CHANNELS STUDY: DETROIT RIVER SYSTEM MASS BALANCE (UGLCCS ACTIVITIES C.1 AND F.4) |
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The report describes results of a study of water quality budgets in the Lake St. Clair - Detroit River system. In two water quality surveys profiles of contaminants and other chemi...
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UPTAKE, TOXICITY, AND TROPHIC TRANSFER OF MERCURY IN A COASTAL DIATOM. (R824778) |
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The primary mechanisms controlling the accumulation of methylmercury and
inorganic mercury in aquatic food chains are not sufficiently understood.
Differences in lipid s...
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USE AND RELEASE OF MERCURY IN THE UNITED STATES |
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Although mercury use is decreasing in the U.S., mercury continues to pose a serious risk to human health and the environment. This report presents the results of a two-year effort...
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USE OF CITIZEN BIRD POPULATION MONITORING DATA FOR ECOLOGICAL RISK ASSESSMENT |
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Birds are among the most conspicuous and easily monitored indicators of environmental health and change. Although volunteer avian monitoring ('citizen science') programs provide u...
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USE OF ENVIRONMENTAL ISOTOPES TO DIFFERENTIATE WATER SOURCES AND CONSTRAIN THE WATER BUDGET AT THE SULPHUR BANK MERCURY MINE, CLEAR LAKE, CALIFORNIA |
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The Sulphur Bank Mercury Mine (SBMM) is a 65 ha site located on the eastern shore of the Oaks Arm of Clear Lake, Lake County, California. Between 1864 and 1957, SBMM was the site ...
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USE OF INDICATORS IN ECOLOGICAL RISK ASSESSMENTS FOR PERSISTENT BIOACCUMULATING TOXICANTS |
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This paper synthesizes several presentations on the use of indicators in elological risk assessments for persistent, bioaccumulative toxicants (PBTs). The presentations were organi...
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USE OF LIFE-TABLES FOR EVALUATING THE CHRONIC TOXICITY OF POLLUTANTS TO 'MYSIDOPSIS BAHIA' |
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This study examines the application of population statistics to laboratory-derived toxicological data for the purpose of developing a predictive model that assesses the population ...
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USE OF REVA'S WEB-BASED ENVIRONMENTAL DECISION TOOLKIT (EDT) TO ASSESS VULNERABILITY TO MERCURY ACROSS THE UNITED STATES |
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The problem of assessing risk from mercury across the nation is extremely complex involving integration of 1) our understanding of the methylation process in ecosystems, 2) the ide...
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USE OF REVA'S WEB-BASED ENVIRONMENTAL DECISION TOOLKIT (EDT) TO ASSESS VULNERABILITY TO MERCURY ACROSS THE UNITED STATES |
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The problem of assessing risk from mercury across the nation is extremely complex involving integration of 1) our understanding of the methylation process in ecosystems, 2) the ide...
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USE OF THE GEOGRAPHIC INFORMATION SYSTEM TO INVESTIGATE MERCURY LEVELS IN CORRELATION WITH POSTMORTEM FINDINGS OF ASPERGILLUS INDUCED LESIONS IN THE COMMON LOON (GAVIA IMMER) IN THE NORTHEASTERN USA |
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This study employed the Geographic Information System (GIS) to correlate total mercury levels in liver tissue with post-mortem findings of aspergillosis in common loons (Gavia imme...
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USEPA OFFICE OF RESERCH AND DEVELOPMENT TECHNOLOGY TRANSFER ACTIVITIES ON MERCURY RESEARCH |
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Two meet USEP A mercury research strategy goals, five mercury workshops were held in the U.S. The two overall objectives governing the proceedings of these workshops were:
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USEPA ORD TECHNOLOGY TRANSFER ACTIVITES ON MERCURY RESEARCH |
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Key scientific questions have compelled ORD, in support of the Agency's mission, to develop a Mercury Research Strategy (1999). This strategy was to enable ORD to take a more proac...
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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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USEPA'S RESEARCH PROGRAMS ON REMEDIATION OF HARD-TO-TREAT METALS AND ORGANICS |
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USEPA's NRMRL is responsible for planning and implementing R&D programs with respect to a variety of environmental areas. Research areas that have been given increased emphasis in ...
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USEPA'S RESEARCH PROGRAMS ON REMEDIATION OF HARD-TO-TREAT METALS AND ORGANICS |
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USEPA's NRMRL is responsible for planning and implementing R&D programs with respect to a variety of environmental areas. Research areas that have been given increased emphasis in ...
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USING A DEMOGRAPHIC MATRIX MODEL TO INCORPORATE LABORATORY AND FIELD STUDIES OF DIETARY METHYMERCURY EFFECTS INTO A POPULATION-LEVEL RISK ASSESSMENT FOR THE COMMON LOON |
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Platform presentation at a scientific meeting...
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USING LAKE SEDIMENT MERCURY FLUX RATIOS TO EVALUATE THE REGIONAL AND CONTINENTAL DIMENSIONS OF MERCURY DEPOSITION IN ARCTIC AND BOREAL ECOSYSTEMS |
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Anthropogenically elevated Hg deposition in arctic and subarctic ecosystems is potentially a serious environmental problem, particularly in northern Europe and North America. To de...
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UTILITY OF EXAFS IN CHARACTERIZATION AND SPECIATION OF MERCURY-BEARING MINE WASTES. (R827634) |
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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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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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VAPOR PHASE MERCURY SORPTION BY ORGANIC SULFIDE MODIFIED BIMETALLIC IRON-COPPER NANOPARTICLE AGGREGATES |
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Novel organic sulfide modified bimetallic iron-copper nanoparticle aggregate sorbent materials have been synthesized for removing elemental mercury from vapor streams at elevated t...
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VAPOR PHASE MERCURY SORPTION BY ORGANIC-SULFIDE COATED BIMETALLIC IRON-COPPER NANOPARTICLE AGGREGATES |
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Tetra sulfide silane coated iron-copper nano-particle aggregates are found to be potentially very high capacity sorbents for vapor phase mercury capture. High equilibrium capacitie...
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VIBROTACTILE THRESHOLD AND PIN-PRICK SENSITIVITY AS INDICATORS OF SUBCLINICAL CHANGES IN SOMATOSENSORY FUNCTION: EFFECTS OF ENVIRONMENTAL EXPOSURE TO ARSENIC IN DRINKING WATER. |
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Peripheral neuropathy is a classical symptom of arsenic poisoning. Nerve conduction velocity (NCV) is the preferred measure for clinical assessment of peripheral neuropathy, but...
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VISUAL CONTRAST SENSITIVITY: A SENSITIVE INDICATOR OF NEUROTOXICITY FOR RISK ASSESSMENT AND CLINICAL APPLICATIONS. |
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Both human-health risk assessments of adverse effects from chronic, environmental exposures to neurotoxics and clinical practice are in need of objective indicators sensitive to th...
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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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VOLTAMMETRIC DETERMINATION OF ACROLEIN |
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A differential pulse polarographic method was developed for acrolein. It is based on electrochemical reduction of acrolein at the dropping mercury electrode. With this method, acro...
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VOLTAMMETRIC METHODS FOR DETERMINATION OF METAL BINDING BY FULVIC ACID |
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The use of anodic stripping voltammetry (ASV) and differential pulse polarography (DPP) for the measurement of the concentrations of aquo ions in the presence of fulvic acid, and t...
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WASTE MINIMIZATION AUDIT REPORT: CASE STUDIES OF MINIMIZATION OF MERCURY-BEARING WASTES AT A MERCURY CELL CHLORALKALI PLANT |
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The report documents the results of waste minimization audits carried out at two mercury cell chloralkali plants in 1987. The audit addressed to waste streams, K-071-brine purifica...
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WATER QUALITY CRITERIA DOCUMENTS |
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Background
Water quality standards and criteria are the foundation for a wide range of programs under the Clean Water Act. Specifically, under section 304(a...
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WATER-ROCK INTERACTIONS INFLUENCING MERCURY FATE AND TRANSPORT FROM AN ABANDONED MINE SITE TO AN ADJACENT AQUATIC ECOSYSTEM |
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Clear Lake, located 150 km north of San Francisco, is one of the largest fresh water lakes in California and is an important economic resource for the region. Elevated mercury lev...
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WATER-ROCK INTERACTIONS INFLUENCING MERCURY FATE AND TRANSPORT FROM AN ABANDONED MINE SITE TO AN ADJACENT AQUATIC ECOSYSTEM: ABSTRACT |
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NRMRL-ADA-01319
Jewett*, D.G., Manges, E., Reller, G.J., Engle, and Bauman. Water-Rock Interactions Influencing
Mercury Fate and Transport From An Abandoned Mine Site To An Adjace...
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WATERSHED INFLUENCES ON MERCURY TRANSPORT TO LAKE SUPERIOR. (R827629) |
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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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WED Research Update Spring 2008 |
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Synopsis of research at the Western Ecology Division....
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WESTERN AIRBORNE CONTAMINANTS ASSESSMENT PROJECT (WACAP): ASSESSING DEPOSITION AND IMPACTS OF PERSISTENT ORGANIC POLLUTANTS AND METALS IN SEVEN NATIONAL PARKS IN THE WESTERN UNITED STATES |
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Airborne contaminants, especially those that biomagnify in the food chain, can pose serious health threats to wildlife and humans. Biological effects of airborne contaminants incl...
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WESTERN AIRBORNE CONTAMINANTS ASSESSMENT PROJECT RESEARCH PLAN |
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The goal of the Western Airborne Contaminants Assessment Project (WACAP) is to assess the deposition of airborne contaminants in Western National Parks, providing regional and loca...
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WESTERN ECOLOGY DIVISION RESEARCH UPDATE - JUNE 2003 |
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This is a "newsletter" of science findings and a feature article...
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WHICH AIRBORNE CONTAMINANTS POSE THE GREATEST RISK TO WESTERN NATIONAL PARKS (USA)? |
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The Western Airborne Contaminants Assessment Project (WACAP) was initiated in 2002 by the National Park Service to determine if airborne contaminants where having an impact on remo...
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WHY DOES FLUE GAS ELEMENTAL MERCURY CONCENTRATION INCREASE ACROSS A WET SCRUBBER? |
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The paper describes the results of research investigating the potential reduction of oxidized mercury (Hg2+) to elemental mercury (Hg0) and subsequent emission of Hg0 from wet scru...
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WILDLIFE RISK ASSESSMENT: DEVELOPMENT OF METHODS TO ASSESS THE EFFECTS OF MERCURY AND HABITAT ALTERATION ON POPULATIONS OF AQUATIC-DEPENDENT WILDLIFE |
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NHEERL is conducting a demonstration project to develop tools and approaches for assessing the risks of multiple stressors to populations of piscivorous wildlife, leading to the ...
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WIND TUNNEL EVALUATION OF AN AIRCRAFT-BORNE SAMPLING SYSTEM |
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The US Environmental Protection Agency (EPA), the Florida Department of Environmental Protection (FLDEP), and Texas A&M University collaborated in the design, construction, and tes...
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WORKSHOP ON MERCURY IN PRODUCTS, PROCESSES, WASTE AND THE ENVIRONMENT: ELIMINATING, REDUCING AND MANAGING RISKS FROM NON-COMBUSTION SOURCES (PROGRAM FLYER) |
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The Workshop is designed to achieve three goals:
1. Convey public and private sector perspectives on the management of mercury in products, processes, and wastes;
2. Present ...
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WORKSHOP ON SOURCE EMISSION AND AMBIENT AIR MONITORING OF MERCURY |
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AN EPA/ORD Workshop on Source Emission and Ambient Air Monitoring of Mercury was held on 9/13-14/99, Bloomington, Minnesota. The purpose of the workshop was to discuss the state-of...
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X-RAY PHOTOELECTRON SPECTROSCOPY ANALYSIS OF MERCURY SORBENT SURFACE CHEMISTRY. (R827649) |
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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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XAS AND XPS CHARACTERIZATION OF MERCURY BINDING ON BROMINATED ACTIVATED CARBON |
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Brominated powdered activated carbon sorbents have been shown to e quite effective for mercury capture when injected into the flue gas duct at coal-fired power plants and are espec...
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