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A BRIEF HISTORY OF THE DEVELOPMENT OF EXPOSURE ASSESSMENT METHODS AT US EPA/NERL USING ALVEOLAR BREATH AS THE BIOLOGICAL MEDIUM |
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Historically, ambient air (and perhaps water, soil, food, etc.) measurements were used to estimate the potential for human exposure to environmental pollutants based on various d...
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A COMPOSITE HOLLOW FIBER MEMBRANE-BASED PERVAPORATION PROCESS FOR SEPARATION OF VOCS FROM AQUEOUS SURFACTANT SOLUTIONS. (R825511C027) |
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The separation and recovery of VOCs from surfactant-containing aqueous solutions by a composite hollow fiber membrane-based pervaporation process has been studied. The process e...
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A HOLLOW FIBER MEMBRANE BIOREACTOR FOR THE REMOVAL OF TRICHLOROETHYLENE FROM THE VAPOR PHASE. (R822721C630) |
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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 HOLLOW FIBER MEMBRANE BIOREACTOR FOR THE REMOVAL OF TRICHLOROETHYLENE FROM THE VAPOR PHASE. (R826694C630) |
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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 KINETIC STUDY OF AEROBIC PROPANE UPTAKE AND COMETABOLIC DEGRADATION OF CHLOROFORM, CIS-DICHLOROETHYLENE AND TRICHLOROETHYLENE IN MICROCOSMS WITH GROUNDWATER/AQUIFER SOLIDS. (R828772) |
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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 NOVEL LABORATORY SYSTEM FOR EVALUATION THE FATE OF TRICHLOROETHYLENE IN PLANTS. (R825549C006) |
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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 PHYSIOLOGICALLY-BASED PHARMACOKINETIC MODEL FOR TRICHLOROETHYLENE IN THE MALE LONG-EVANS RAT |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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A PHYSIOLOGICALLY-BASED PHARMACOKINETIC MODEL FOR TRICHLOROETHYLENE WITH SPECIFICITY FOR THE LONG EVANS RAT |
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A PBPK model for TCE with specificity for the male LE rat that accurately predicts TCE tissue time-course data has not been developed, although other PBPK models for TCE exist. Dev...
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A POLYMER-CERAMIC COMPOSITE MEMBRANE FOR RECOVERING VOLATILE ORGANIC COMPOUNDS FROM WASTEWATERS BY PERVAPORATION |
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A composite membrane was constructed on a porous ceramic support from a block copolymer of styrene and butadiene (SBS). It was tested in a laboratory pervaporation apparatus for re...
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A RADIAL REACTOR FOR TRICHLOROETHYLENE STEAM REFORMING. (R822721C633) |
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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 RADIAL REACTOR FOR TRICHLOROETHYLENE STEAM REFORMING. (R826694C633) |
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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 SEARCH FOR RESIDUAL BEHAVIORAL EFFECTS OF TRICHLOROETHYLENE (TCE) IN RATS EXPOSED AS YOUNG ADULTS |
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Trichloroethylene (TCE) is a solvent of concern to the EPA due to its extensive use in industry, its prevalence in urban air, and its appearance in water supplies. Human clinical s...
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A SPECIALIZED COMPARTMENTAL MODEL FOR THE DISPOSITION OF FAT-ACCUMULATING XENOBIOTICS IN ADIPOSE TISSUE: APPLICATION TO A SYSTEMIC PBPK MODEL FOR TRICHLOROETHYLENE (TCE) |
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There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the person listed under Contact field....
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A SURVEY ON RESEARCH NEEDS ON PERSONAL SAMPLERS FOR TOXIC ORGANIC COMPOUNDS |
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A survey is presented on the research and development needs for personal monitoring devices for toxic organic compounds in the ambient atmosphere. This survey includes a descriptio...
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ABIOTIC DEGRADATION OF TRICHLOROETHYLENE UNDER THERMAL REMEDIATION CONDITIONS |
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The degradation of TCE (C2HCl3) to carbon dioxide (CO2) and chloride (Cl-) has been reported to occur during thermal remediation of subs...
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ABIOTIC REACTIONS MAY BE THE MOST IMPORTANT MECHANISM IN NATURAL ATTENUATION OF CHLORINATED SOLVENTS |
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The EPA Technical Protocol for Evaluating Natural Attenuation of Chlorinated Solvents in Ground Water was developed with the assumption that natural biological reductive dechlori...
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ACUTE AND REPEATED INHALATION OF TOLUENE BY RATS PERFORMING A SIGNAL DETECTION TASK LEADS TO BEHAVIORAL TOLERANCE ON SOME PERFORMANCE MEASURES. |
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Previous work showed that trichloroethylene (TCE) impairs accuracy and latency in a signal detection task (SDT) in rats, and that these effects abate during repeated exposures if r...
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ACUTE BEHAVIORAL EFFECTS OF INHALED PERCHLOROETHYLENE IN RATS ARE DIRECTLY RELATED TO ITS CONCENTRATION IN THE BRAIN. |
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Perchloroethylene (PCE) is a volatile organic compound (VOC), frequently used in dry cleaning processes, that is currently being assessed by EPA for its risk to human health. Many ...
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ACUTE NEUROTOXIC EFFECTS OF INHALED PERCHLOROETHYLENE ON PATTERN VISUAL EVOKED POTENTIALS AS A FUNCTION OF EXPOSURE AND ESTIMATED BLOOD AND BRAIN CONCENTRATION. |
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Previous experiments have shown the effects of acute inhalation exposure to trichloroethylene (TCE) and toluene are related to the target tissue concentration at the time of testin...
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ACUTE NEUROTOXIC EFFECTS OF INHALED TRICHLOROETHYLENE (TCE): LINKING APPLIED DOSE, ABSORBED DOSE (BLOOD), TARGET TISSUE DOSE (BRAIN) AND OUTCOME MEASURES |
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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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ADSORPTION AND CATALYTIC DESTRUCTION OF TRICHLOROETHYLENE IN HYDROPHOBIC ZEOLITES |
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Several chromium exchanged ZSM-5 zeolites of varying SiO2/Al2O3 ratio were prepared and investigated for ambient (23 ?C) adsorption and subsequent oxidative destruction (250-400 ?C...
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ADVANCED OXIDATION PROCESSES - TEST OF A KINETIC MODEL FOR THE OXIDATION OF ORGANIC COMPOUNDS WITH OZONE AND HYDROGEN IN A SEMIBATCH REACTOR |
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Experimental data are presented to test a kinetic model of the O3/H2O2 process in a semibatch reactor. he effect of bicarbonate and carbonate ions is measured and found to be in co...
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ADVANCED OXIDATION PROCESSES FOR TREATING GROUNDWATER CONTAMINATED WITH TCE (TRICHLOROETHYLENE) AND PCE (TETRACHLOROETHYLENE): LABORATORY STUDIES (JOURNAL VERSION) |
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Oxidation of trichloroethylene (TCE) and tetrachloroethylene (PCE) with various dosages of ozone or ozone plus hydrogen peroxide was studied in laboratory experiments. The results ...
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AEROBIC METABOLISM OF TRICHLOROETHYLENE BY A BACTERIAL ISOLATE |
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A number of soil and water samples were screened for the biological capacity to metabolize trichloroethylene. One water sample was found to contain this capacity, and a gram-negati...
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AGE-DEPENDENT DIFFERENCES IN THE PHARMACOKINETICS OF VOLATILE ORGANIC COMPOUNDS UTILIZING PHYSIOLOGICALLY-BASED PHARMACOKINETIC MODELING OF RAT. |
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The goal of this modeling will be to predict age-appropriate dosimetry applicable to toxicity studies involving different lifestages, which are potentially critical studies for hum...
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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 EVALUATION OF THE SECONDARY EFFECTS OF AIRSTRIPPING |
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At a 2.9 million gallon per day well contaminated with several volatile organic compounds (VOCs), principally trichloroethylene (TCE), a packed tower aerator (PTA) was pilot tested...
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AN EXAMPLE OF MODEL STRUCTURE DIFFERENCES USING SENSITIVITY ANALYSES IN PHYSIOLOGICALLY BASED PHARMACOKINETIC MODELS OF TRICHLOROETHYLENE IN HUMANS |
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Abstract
Trichloroethylene (TCE) is an industrial chemical and an environmental contaminant. TCE and its metabolites may be carcinogenic and affect human health. Physiologically ...
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AN IN SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF HEXAVALENT CHROMIUM AND TRICHLOROETHYLENE IN GROUNDWATER:VOLUME 2 PERFORMANCE MONITORING |
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A 46 m long, 7.3 m deep, and 0.6 m wide permeable subsurface reactive wall was installed at the U.S. Coast Guard (USCG) Support Center, near Elizabeth City, North Carolina, in June...
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AN IN SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF HEXAVALENT CHROMIUM AND TRICHLOROETHYLENE IN GROUNDWATER:VOLUME 2 PERFORMANCE MONITORING (EPA/600/R-99/095B) |
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A 46 meter long, 7.3 meter deep and 0.6 meter wide reactive barrier was installed at the U.S. Coast Guard Support Center (USCG) in Elizabeth City, North Carolina, in June 1996. The...
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AN IN-SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF HEXAVALENT CHROMIUM AND TRICHLOROETHYLENE IN GROUND WATER: VOLUME 1 DESIGN AND INSTALLATION |
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A 46 m long, 7.3 m deep, and 0.6 m wide permeable subsurface reactive wall was installed at the U.S. Coast Guard (USCG) Support Center, near Elizabeth City, North Carolina, in June...
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AN IN-SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF HEXAVALENT CHROMIUM AND TRICHLOROETHYLENE IN GROUNDWATER: VOLUME 3 MULTICOMPONENT REACTIVE TRANSPORT MODELING |
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Reactive transport modeling has been conducted to describe the performance of the permeable reactive barrier at the Coast Guard Support Center near Elizabeth City, NC. The reactiv...
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AN IN-SITU PERMEABLE REACTIVE BARRIER FOR THE TREATMENT OF HEXAVALENT CHROMIUM AND TRICHLOROETHYLENE IN GROUNDWATER: VOLUME 3 MULTICOMPONENT REACTIVE TRANSPORT MODELING (EPA/600/R-99/095C) |
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Reactive transport modeling has been conducted to describe the performance of the permeable reactive barrier at the U.S. Coast Guard Support Center near Elizabeth City, N.C. The re...
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ANAEROBIC BIOTRANSFORMATIONS OF POLLUTANT CHEMICALS IN AQUIFERS (JOURNAL VERSION) |
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Anaerobic microbial communities sampled from either a methanogenic or sulfate-reducing aquifer site have been tested for their ability to degrade a variety of groundwater pollutant...
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ANALYSES OF VOLATILE C2 HALOETHANES AND HALOETHANES IN TISSUES: SAMPLE PREPARATION AND EXTRACTION |
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Characterization of the pharmacokinetics of volatile organic compounds (VOCS) requires reliable analytical techniques for measuring tissue concentration. n extraction procedure was...
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ANIMAL MODELS FOR STUDYING MISCARRIAGE: ILLUSTRATION WITH STUDY OF DRINKING WATER DISINFECTION BY-PRODUCTS |
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Animal models for studying miscarriage: Illustration with study of drinking water disinfection by-products
Authors & affiliations:
Narotsky1, M.G. and S. Bielmeier Laffan2. |
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APPLICATION AND USE OF DOSE ESTIMATING EXPOSURE MODEL (DEEM) FOR DOSE COMPARISONS AFTER EXPOSURE TO TRICHLOROETHYLENE (TCE) |
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Route-to-route extrapolations are a crucial step in many risk assessments. Often the doses which result In toxicological end points in one route must be compared with doses resul...
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APPLICATION AND USE OF DOSE ESTIMATING EXPOSURE MODEL (DEEM) FOR ROUTE TO ROUTE DOSE COMPARISONS AFTER EXPOSURE TO TRICHLOROETHYLENE (TCE) |
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Route-to-route extrapolations are a crucial step in many risk assessments. Often the doses which result In toxicological end points in one route must be compared with doses resul...
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APPLICATION OF PHYSIOLOGICALLY-BASED PHARMACOKINETIC (PBPK) MODELING TO PREDICT THE DISTRIBUTION OF TRICHLOROETHYLENE IN DIFFERENT TISSUES OF YOUNG 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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APPLICATIONS ANALYSIS REPORT: AWD TECHNOLOGIES, INC AQUADETOX®/SVE TECHNOLOGY |
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In support of the U.S. Environmental Protection Agency’s (EPA) Superfund Innovative Technology Evaluation (SITE) Program, this report evaluates the AWD Technologies, Inc., integrat...
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APPLICATIONS OF DOSIMETRY MODELING TO ASSESSING NEUROTOXIC RISK. |
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Risk assessment procedures can be improved through better understanding and use of tissue dose information and linking tissue dose level to adverse outcomes. For volatile organic ...
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AQUIFER PROTIST RESPONSE AND THE POTENTIAL FOR TCE BIOREMEDIATION WITH BURKHOLDERIA CEPACIA G4 PR1 |
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The introduction of bacteria into the environment for bioremediation purposes (bioaugmentation) requires analysis and monitoring of the persistence and activity of microbial popula...
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ASSESSMENT OF ANIONIC SURFACTANT-TRICHLOROETHYLENE MICROEMULSION STABILITY DURING TRANSPORT THROUGH QUARTZ SEDIMENT. (R826650) |
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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 OF VAPOR INTRUSION USING INDOOR AND SUB-SLAB AIR SAMPLING |
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The objective of this investigation was to develop a method for evaluating vapor intrusion using indoor and sub-slab air measurement and at the same time directly assist EPA’s New ...
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ASSESSMENT OF VAPOR INTRUSION USING INDOOR AND SUB-SLAB AIR SAMPLING |
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The objective of this investigation was to develop a method for evaluating vapor intrusion using indoor and sub-slab air measurement and at the same time directly assist EPA’s New ...
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ATMOSPHERIC CHEMISTRY OF SEVERAL TOXIC COMPOUNDS |
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The hydroxyl radical initiated gas phase oxidation of several toxic compounds in nitrous acid, oxides of nitrogen, in air mixtures were investigated. The chemical species studied w...
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ATMOSPHERIC PERSISTENCE OF EIGHT AIR TOXICS |
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Atmospheric lifetimes were estimated for eight air toxic chemicals (i.e., methylene chloride, chloroform, carbon tetrachloride, ethylene dichloride, trichloroethylene, perchloroeth...
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ATMOSPHERIC REACTION PRODUCTS FROM HAZARDOUS AIR POLLUTANT DEGRADATION |
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This research project was undertaken to investigate the products of selected hazardous air pollutants (HAPs) as they react in the atmosphere. Many hazardous or potentially hazardou...
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BEHAVIORAL COMPONENTS OF TOLERANCE TO REPEATED INHALATION OF TRICHLOROETHYLENE (TCE) 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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BEHAVIORAL EFFECTS OF TRICHLOROETHYLENE (TCE): EXPOSURE VS. MODEL PREDICTIONS |
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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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BINARY DESORPTION ISOTHERMS OF TCE AND PCE FROM SILICA GEL AND NATURAL SOLIDS. (R822626) |
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Binary solute desorption isotherms of trichloroethylene (TCE) and tetrachloroethylene (PCE) at 100% relative humidity from silica gel and two well-characterized natural solids w...
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BIODEGRADATION OF TRICHLOROETHYLENE AND INVOLVEMENT OF AN AROMATIC BIODEGRADATIVE PATHWAY |
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Biodegradation of trichloroethylene (TCE) by the bacterial isolate strain G4 resulted in complete dechlorination of the compound as indicated by the production of inorganic chlorid...
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BIOLOGICAL WASTE AIR TREATMENT IN BIOTRICKLING FILTERS. (R825392) |
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AbstractRecent studies in the area of biological waste air treatment in biotrickling filters have addressed fundamental key issues, such as biofilm architecture, microb...
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BIOREMEDIATION OF CHLORINATED SOLVENTS IN THE VADOSE ZONE |
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Subsurface aeration can remove solvent spills by air stripping. he waste air streams that originate can be cleansed by sorption, combustion, or biodegradation. aboratory soil micro...
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BIOTRANSFORMATION OF CIS-1,2-DICHLOROETHYLENE IN AQUIFER MATERIAL FROM PICATINNY ARSENAL, MORRIS COUNTY, NEW JERSEY |
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Soil cores were collected within and adjacent to a trichloroethylene plume that had contaminated the shallow aquifer at Picatinny Arsenal, New Jersey, to study the rate of contamin...
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BIOTRANSFORMATION OF TRICHLOROETHYLENE IN SOIL |
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The organic contaminants that are most commonly detected in groundwater are low-molecular-weight, chlorinated aliphatic hydrocarbons such as trichloroethylene (TCE), tetrachloroeth...
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BIOTRANSFORMATIONS OF SELECTED ALKYLBENZENES AND HALOGENATED ALIPHATIC HYDROCARBONS IN METHANOGENIC AQUIFER MATERIAL: A MICROCOSM STUDY |
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Leachates from municipal landfills commonly contain a variety of organic contaminants of industrial origin. The behavior of these compounds in anaerobic, and particularly in methan...
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BIOVENTING OF CHLORINATED SOLVENTS FOR GROUND-WATER CLEANUP THROUGH BIOREMEDIATION |
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Chlorinated solvents such as tetrachloroethylene, trichloroethylene, carbon tetrachloride, chloroform, 1,2-dichloroethane, and dichloromethane (methylene chloride) can exist in con...
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CARCINOGENICITY OF TRICHLOROETHYLENE AND ITS METABOLITES, TRICHLOROACETIC ACID AND DICHLOROACETIC ACID, IN MOUSE LIVER |
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Trichloroethylene (TCE) has previously been shown to be carcinogenic in mouse liver when given by daily gavage in corn oil. The metabolism of TCE results, in part, in the formation...
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CATALYTIC STEAM REFORMING OF CHLOROCARBONS: CATALYST DEACTIVATION. (R826694C633) |
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Deactivation of 0.5 wt.% Pt/ -Al2O3 catalysts du...
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CATALYTIC STEAM REFORMING OF CHLOROCARBONS: METHLYCHLORIDE. (R822721C633) |
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The effective destruction of trichloroethane, trichloroethylene and perchloroethylene by steam reforming with a commercial nickel catalyst has been demonstrated. Conversion leve...
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CATALYTIC STEAM REFORMING OF CHLOROCARBONS: TRICHLOROETHANE, TRICHLOROETHYLENE AND PERCHLOROETHYLENE. (R822721C633) |
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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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CATALYTIC STEAM REFORMING OF CHLOROCARBONS: TRICHLOROETHANE, TRICHLOROETHYLENE AND PERCHLOROETHYLENE. (R826694C633) |
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The effective destruction of trichloroethane, trichloroethylene and perchloroethylene by steam reforming with a commercial nickel catalyst has been demonstrated. Conversion leve...
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CD4+ T CELL ACTIVATION AND INDUCTION OF AUTOIMMUNE HEPATITIS FOLLOWING TRICHLOROETHYLENE TREATMENT IN MRL+/+ MICE. (R826409) |
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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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CD4+ T-CELL ACTIVATION AND INDUCTION OF AUTOIMMUNE HEPATITIS FOLLOWING TRICHLOROETHYLENE TREATMENT IN MRL+/+ MICE. (R826409) |
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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 A METHANE-UTILIZING BACTERIUM FROM A BACTERIAL CONSORTIUM THAT RAPIDLY DEGRADES TRICHLOROETHYLENE AND CHLOROFORM. (R825689C041) |
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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 SOIL DISPOSAL SYSTEM LEACHATES |
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Ground water from a total of ten septic tank systems around the country has been sampled and analyzed for inorganic ions, bacteria, viruses, and chromatographable trace level organ...
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CHARACTERIZING THE MICROBIAL COMMUNITY IN SABRE LABORATORY STUDIES |
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The SABRE (Source Area BioREmediation) project will evaluate accelerated anaerobic bioremediation of chlorinated solvents in areas of high concentration, such as DNAPL source areas...
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CHARACTERIZING TOLERANCE TO TRICHLOROETHYLENE (TCE): EFFECTS OF REPEATED INHALATION OF TCE ON PERFORMANCE OF A SIGNAL DETECTION TASK 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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COMBINED EFFECTS OF SOLVENTS ON THE RAT'S AUDITORY SYSTEM: STYRENE AND TRICHLOROETHYLENE |
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Because exposures to toxic agents typically involve more than one substance, it is necessary to know if combined exposures pose different risks than those to single agents. any sol...
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COMPARISON OF GROUND-WATER SAMPLING DEVICES BASED ON EQUILIBRATION OF WATER QUALITY INDICATOR PARAMETERS |
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The sampling device selected when obtaining ground-water samples can have a significant impact on the representativeness and reproducibility of the sample. his study evaluated seve...
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COMPARISON OF MINERAL AND SOLUBLE IRON FENTON'S CATALYSTS FOR THE TREATMENT OF TRICHLOROETHYLENE. (R826163) |
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AbstractContaminant degradation, stoichiometry, and role of hydroxyl radicals (OH·) in four Fenton's systems were investigated using trichloroethy...
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COMPARISON OF TRICHLOROETHYLENE REDUCTIVE DEHALOGENATION BY MICROBIAL COMMUNITIES STIMULATED ON SILICON-BASED ORGANIC COMPOUNDS AS SLOW-RELEASE ANAEROBIC SUBSTRATES. (R828772C001) |
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Microcosm studies were conducted to demonstrate the effectiveness of tetrabutoxysilane (TBOS) as a slow-release anaerobic substrate to promote reductive dehalogenation of trichl...
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COMPARISON OF TWO FIELD SAMPLING PROCEDURES (EN CORE AND FIELD METHANOL EXTRACTION) FOR VOLATILE ORGANIC COMPOUNDS |
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In-situ Lasagna technology was recently evaluated at a contaminated site at Offutt Air Force Base. The site was contaminated with low levels (< 30 mg/kg) of volatile organic compo...
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COMPETITIVE ADSORPTION OF VOCS AND BOMOXIC AND ANOXIC ENVIRONMENTS |
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The effect of the presence of molecular oxygen on the adsorption of volatile organic compounds (VOCS) in distilled Milli-Q water and in water supplemented with background organic m...
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COMPLETE NATURAL ATTENUATION OF PCE AND TCE WITHOUT VINYL CHLORIDE AND ETHENE ACCUMULATION |
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A shallow aquifer at the Twin Cities Army Ammunition Plant (TCAAP) was contaminated with tetrachloroethylene (PCE) and trichloroethylene (TCE). Cisdichloroethylene (cis-DCE) is fo...
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CONCENTRATION OF TETRACHLOROETHYLENE IN INDOOR AIR AT A FORMER DRY CLEANER FACILITY AS A FUNCTION OF SUBSURFACE CONTAMINATION: A CASE STUDY |
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A field study was performed to evaluate indoor air concentrations and vapor intrusion (VI) of tetrachloroethylene (PCE) and other chlorinated solvents at a commercial retail site i...
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CONCENTRATION-TIME RELATIONSHIPS FOR THE EFFECTS OF INHALED TRICHLOROETHYLENE ON SIGNAL DETECTION BEHAVIOR IN RATS |
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NO ABSTRACT PROVIDED...
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CONSTITUTIVE DEGRADATION OF TRICHLOROETHYLENE BY AN ALTERED BACTERIUM IN A GAS-PHASE BIOREACTOR |
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Pseudomonas cepacia G4 expresses a unique toluene ortho-monooxygenase (Tom) that enables it to degrade toluene and trichloroethylene (TCE). ransposon mutants of G4 have been isolat...
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CONTROL OF VOLATILE ORGANIC CONTAMINANTS IN GROUNDWATER BY IN-WELL AERATION |
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At a 0.1 mgd well contaminated with several volatile organic compounds (VOCs), principally trichloroethylene (TCE), several in-well aeration schemes were evaluated as control techn...
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CORONA DISCHARGE REACTOR FOR SELECTIVE OXIDATION OF ALCOHOLS AND HYDROCARBONS USING OZONATION AND PHOTOXIDATION OF OVER TIO2 |
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We have developed a process that combines the use of surface corona for the production of ozone by passing air or oxygen through a high voltage electrical discharge and the emitted...
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CORONA-INDUCED OZONATION COUPLED WITH PHOTOOXIDATION: AN ENVIRONMENTALLY FRIENDLY AND COST-EFFECTIVE METHOD |
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We have developed a process that uses surface corona for the production of ozone by passing air or oxygen through a high voltage electrical discharge and the emitted ultraviolet li...
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COSOLVENCY OF PARTIALLY MISCIBLE ORGANIC SOLVENTS ON THE SOLUBILITY OF HYDROPHOBIC ORGANIC CHEMICALS |
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The cosolvency of completely miscible organic solvents (CMOSs) and partially miscible organic solvents (PMOSs) on the solubility of hydrophobic organic chemicals (HOCs) was examine...
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COUNTER-DIFFUSION OF ISOTOPICALLY LABELED TRICHLOROETHYLENE IN SILICA GEL AND GEOSORBENT MICROPORES: COLUMN RESULTS. (R822626) |
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To investigate counter-diffusion in microporous sorbents, the rate of
exchange between deuterated trichloroethylene (DTCE) in fast desorbing sites and
nondeuterated TCE ...
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COVALENT BINDING OF TRICHLOROETHYLENE TO PROTEINS IN HUMAN AND RAT HEPATOCYTES. (R826409) |
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The environmental contaminant and occupational solvent trichloroethylene is metabolized to a reactive intermediate that covalently binds to specific hepatic proteins in exposed ...
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CYP2E1 MEDIATED EXTRAHEPATIC METABOLISM IN PBPK MODELING OF LIPOPHILIC VOLATILE ORGANIC COMPOUNDS |
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Physiologically based pharmacokinetic (PBPK) models increasingly are available for environmental chemicals and applied in risk assessments. Often a simplified representation of a r...
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CYTOCHROME P450 1A1 AND STRESS PROTEIN INDUCTION IN EARLY LIFE STAGES OF MEDAKA (ORYZIAS LATIPES) EXPOSED TO TRICHLOROETHYLENE (TCE) SOOT AND DIFFERENT FRACTIONS. (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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CYTOCHROME P450 2E1 METABOLISM OF TRICHLOROETHYLENE ACCELERATES AN AUTOIMMUNE RESPONSE IN MRL+/+ MICE. (R826409) |
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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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CYTOTOXICITY ASSOCIATED WITH TRICHLOROETHYLENE OXIDATION IN BURKHOLDERIA CEPACIA G4. (R825689C027) |
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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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CYTOTOXICITY ASSOCIATED WITH TRICHLOROETHYLENE OXIDATION IN BURKHOLDERIA CEPACIA G4. (R828772) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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DECHLORINATION OF TRICHLOROETHYLENE USING ELECTROCHEMICAL METHODS |
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Electrochemical degradation (ECD) is used to decontaminate organic and inorganic contaminants through oxidative or reductive processes. The ECD of Trichloroethylene (TCE) dechlorin...
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DECHLORINATION OF TRICHLOROETHYLENE USING ELECTROCHEMICAL METHODS |
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Electrochemical degradation (ECD) is used to decontaminate organic and inorganic contaminants through oxidative or reductive processes. The ECD of Trichloroethylene (TCE) dechlorin...
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DEGRADATION OF HALOGENATED ALIPHATIC COMPOUNDS BY THE AMMONIA-OXIDIZING BACTERIUM NITROSOMAS EUROPEA |
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Suspensions of Nitrosomonas europaea catalyzed the ammonia-stimulated aerobic transformation of the halogenated aliphatic compounds dichloromethane, dibromomethane, trichloroethane...
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DEGRADATION OF TRICHLOROETHYLENE UNDER HIGH-TEMPERATURE THERMAL SOURCE-ZONE REMOVAL CONDITIONS (POSTER PRESENTATION) |
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Trichloroethylene (TCE) is a contaminant commonly found in the subsurface at industrial and military installations in the United States. Oxidation of TCE (C2HCl3 |
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DEGREASER SYSTEM POLLUTION PREVENTION EVALUATION |
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The report gives results of an investigation of the capability of various engineering changes to an existing vapor degreaser to reduce solvent emissions to the atmosphere while rem...
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DELTAMETHRIN AND PERMETHRIN DECREASE SPONTANEOUS NETWORK ACTIVITY IN VITRO. |
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ABSTRACT BODY: Pyrethroid insecticides alter inactivation of voltage-sensitive sodium channels, an action that underlies their insecticidal and neurotoxicological properties. How a...
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DEMONSTRATION BULLETIN: AQUADETOX®/ SVE SYSTEM and AWD Technologies, Inc. |
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The AWD technology simultaneously treats groundwater and soil-gas contaminated with volatile or ganic compounds (VOC), such as trichloroethylene (TCE) and tetrachloroethylene (P...
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DEMONSTRATION OF EFFICIENT TRICHLOROETHYLENE BIODEGRADATION IN A HOLLOW FIBER MEMBRANE BIOREACTOR. (R822721C630) |
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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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DEMONSTRATION OF EFFICIENT TRICHLOROETHYLENE BIODEGRADATION IN A HOLLOW FIBER MEMBRANE BIOREACTOR. (R826694C630) |
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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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DEMONSTRATION OF IN SITU DEHALOGENATION OF DNAPL THROUGH INJECTION OF EMULSIFIED ZERO-VALIENT IRON AT LAUNCH COMPLEX 34 IN CAPE CANAVERAL AIR FORCE STATION, FLORIDA |
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The purpose of this project was to evaluate the technical and cost performance of emulsified zero-valent iron (EZVI) technology when applied to DNAPL contaminants in the saturated ...
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DEMONSTRATION OF PILOT-SCALE PERVAPORATION SYSTEMS FOR VOLATILE ORGANIC COMPOUND REMOVAL FROM A SURFACTANT ENHANCED AQUIFER REMEDIATION FLUID. II. HOLLOW FIBER MEMBRANE MODULES |
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Pilot-scale demonstration of pervaporation-based removal of volatile organic compounds from a surfactant enhanced aquifer remediation (SEAR) fluid has been conducted at USEPA's Tes...
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DEMONSTRATION OF PILOT-SCALE PREVAPORATION SYSTEMS FOR VOLATILE ORGANIC COMPOUND REMOVAL FROM A SURFACTANT ENHANCED AQUIFER REMEDIATION FLUID. I. SPIRAL WOUND MEMBRANE MODULES |
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During the summer of 1996, a pilot-scale demonstration of a surfactant enhanced aquifer remediation (SEAR) process for removal of dense non-aqueous phase liquids (DNAPLs) from soil...
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DESIGN SCALE-UP SUITABILITY FOR AIR-STRIPPING COLUMNS (JOURNAL VERSION) |
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An investigation was conducted to determine the suitability of a design scale-up from pilot-scale to full-scale air-stripping columns used in the removal of volatile organic compou...
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DESORPTION OF TRICHLOROETHYLENE IN AQUIFER MATERIAL: RATE LIMITATION AT THE GRAIN SCALE. (R825689C039) |
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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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DEVELOPMENT AND EVALUATION OF SEMICONTINUOUS SLURRY MICROCOSMS TO SIMULATE IN SITU BIODEGRADATION OF TRICHLOROETHYLENE IN CONTAMINATED AQUIFERS. (R825689C066) |
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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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DEVELOPMENT OF A PHYSIOLOGICALLY BASED PHARMOKINETICS (PBPK) MODEL TO COMPARE DIFFERENCES IN DISPOSITION OF TRICHLOROETHYLENE (TCE) IN ADULT VERSUS ELDERLY RATS |
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Due to the increasing number of elderly in the American Population, the question as to whether the aged have different susceptibility to environmental contaminants needs to be addr...
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DEVELOPMENT OF AEROBIC BIOFILTER DESIGN CRITERIA FOR TREATING VOCS |
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This paper reports preliminary results on the use of trickle bed biofilters with monolithic ceramic channelized microbial support structures for the treatment of VOCs typical of la...
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DIFFERING HEPATOTOXICITY AND LETHALITY AFTER SUBACUTE TRICHLOROETHYLENE EXPOSURE IN AQUEOUS OR CORN OIL GAVAGE VEHICLES IN B6C3F1 MICE |
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Subacute toxicity of trichloroethylene (TCE) was evaluated in male and female B6C3F1 mice using corn oil or aqueous gavage vehicles. Mice received oral doses of TCE five times a we...
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DURATION ADJUSTMENT OF ACTUE EXPOSURE GUIDELINE LEVEL (AEGL) VALUES FOR TRICHLOROETHYLENE (TCE) USING A PHYSIOLOGICALLY-BASED PHARMACOKINETIC (PBPK) MODEL. |
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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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DURATION ADJUSTMENT OF ACUTE EXPOSURE GUIDELINE LEVEL (AGEL) VALUES FOR TRICHLOROETHYLENE (TCE)USING A PHYSIOLOGICALLY BASED PHARMACOLINETIC (PBPK) MODEL. |
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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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Demonstration of ISCO Treatment of a DNAPL Source Zone at Launch Complex 34 in Cape Canaveral Air Station, FL |
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The Interagency DNAPL Consortium (IDC) was formally established in 1999 by the U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (U.S. EPA), Department of Defen...
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EFFECT OF AGE ON THE DISPOSITION OF TRICHLOROETHYLENE (TCE) USING PHYSIOLOGICALLY BASED PHARMACOKINETIC (PBPK) MODELING: COMPARISON BETWEEN ALLOMETRIC EXTRAPOLATION AND PHYSIOLOGICAL 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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EFFECT OF INORGANIC IONS IN THE HETEROGENEOUS PHOTOCATALYSIS OF TRICHLOROETHYLENE. (R825370) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECT OF NATURAL DISSOLVED ORGANIC MATTER PRELOADING AND GRANULAR ACTIVATED CARBON SURFACE ACIDITY ON UPTAKE OF TRICHLOROETHYLENE. (R828157) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECT OF TRICHLOROETHYLENE AND ITS METABOLITES, DICHLOROACETIC ACID AND TRICHLOROACETIC ACID, ON THE METHYLATION AND EXPRESSION OF C-JUN AND C-MYC PROTOONCOGENES IN MOUSE LIVER: PREVENTION BY METHIONINE. (R825384) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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EFFECT OF TRICHLOROETHYLENE ON DNA METHYLATION AND EXPRESSION OF EARLY-INTERMEDIATE PROTOONCOGENES IN THE LIVER OF B6C3F1 MICE. (R825384) |
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Trichloroethylene (TCE) is a multimedia environmental pollution that is carcinogenic in mouse liver. The ability of TCE to modulate DNA methylation and the expression of immediate-...
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EFFECT OF TRICHLOROETHYLENE ON MALE SEXUAL BEHAVIOR: POSSIBLE OPIOID ROLE |
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Trichloroethylene (TCE) is a chlorinated hydrocarbon solvent which is widely used as an industrial degreasing agent. Workers exposed to TCE often exhibit symptoms similar to those ...
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EFFECT OF TRICHLOROETHYLENE ON THE EXPLORATORY AND LOCOMOTOR ACTIVITY OF RATS EXPOSED DURING DEVELOPMENT |
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Trichloroethylene (TCE) is a common contaminant of underground water supplies. To examine the effect of TCE on the developing central nervous system, rats were exposed to TCE throu...
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EFFECT OF WEIGHT MAINTENANCE AND ACTIVITY ON TISSUE LEVELS OF TRICHLOROETHYLENE IN MALE LONG EVANS 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 NATURAL ORGANIC MATTER, ANTHROPOGENIC SURFACTANTS, AND MODEL QUINONES ON THE REDUCTION OF CONTAMINANTS BY ZERO-VALENT IRON. (R827117) |
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Recent studies of contaminant reduction by zero-valent iron metal (Fe0) have highlighted the role of iron oxides at the metal–water interface and the effect th...
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EFFECTS OF ORAL EXPOSURE TO TRICHLOROETHYLENE ON FEMALE REPRODUCTIVE FUNCTION |
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In the present study, the distribution, metabolism and reproductive toxicity of trichloroethylene (TCE) administered by the oral route to female rats were examined. The distributio...
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EFFECTS OF PH ON DECHLORINATION OF TRICHLOROETHYLENE BY ZERO-VALENT IRON |
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The surface normalized reaction rate constants (ksa) of trichloroethylene (TCE) and zero-valent iron (ZVI) was quantified in batch reactors at pH values between 1.7 and 10. The ksa...
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EFFECTS OF PH ON DECHLORINATION OF TRICHLOROETHYLENE BY ZERO-VALENT IRON |
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The reduction rates of trichloroethylene (TCE) using zero-valent iron (ZVI) and the rates of iron hydrolysis were characterized at pH values of 5 to 10. The reduction of TCE by ZVI...
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EFFECTS OF REACTION PARAMETERS ON ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE RATE AND BY-PRODUCTS |
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Trichloroethylene (TCE) was electrochemically dechlorinated in aqueous environments using granular graphite cathode in a mixed reactor. Effects of pH, current, electrolyte type, an...
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EFFECTS OF REACTOR CONDITIONS ON ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODE |
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Trichloroethylene (TCE) was electrochemically dechlorinated in aqueous environments using granular graphite cathode in a mixed reactor. Effects of pH, current, electrolyte type, a...
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EFFECTS OF REACTOR CONDITIONS ON ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODE. |
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Trichloroethylene (TCE) was electrochemically dechlorinated in aqueous environments using granular graphite cathode in a mixed reactor. Effects of pH, current, electrolyte type, a...
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EFFECTS OF REVERSE OSMOSIS ISOLATION ON REACTIVITY OF NATURALLY OCCURRING DISSOLVED ORGANIC MATTER IN PHYSICOCHEMICAL PROCESSES. (R828045) |
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A field reverse osmosis system was used to isolate dissolved organic matter (DOM) from two lacustrine and two riverine surface water sources. The rejection of DOM was on the ord...
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EFFECTS OF SELECTED ORGANIC DRINKING WATER CONTAMINANTS ON MALE REPRODUCTION |
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Because of the recent increase in exposure of individuals to potentially harmful chemicals, it has become increasingly important to test the potential of environmental chemicals to...
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EFFECTS OF TEMPERATURE ON TRICHLOROETHYLENE DESORPTION FROM SILICA GEL AND NATURAL SEDIMENTS. 1. ISOTHERMS. (R822626) |
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Aqueous phase isotherms were calculated from vapor phase desorption isotherms
measured at 15, 30, and 60  C for
trichloroethylene on ...
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EFFECTS OF TEMPERATURE ON TRICHLOROETHYLENE DESORPTION FROM SILICA GEL AND NATURAL SEDIMENTS. 2. KINETICS. (R822626) |
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Isothermal desorption rates were measured at 15, 30, and 60 ![]()
src="/ncer/pubs/images/deg.gif">C for trichloroethylene (TCE) on a silica gel,
an aquifer sediment, a so...
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EFFECTS OF THERMAL TREATMENTS ON THE CHEMICAL REACTIVITY OF TRICHLOROETHYLENE |
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A series of experiments was completed to investigate abiotic degradation and reaction product formation of trichloroethylene (TCE) when heated. A quartz-tube apparatus was used to ...
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EFFECTS OF TOXICITY, AERATION, AND REDUCTANT SUPPLY ON TRICHLOROETHYLENE TRANSFORMATION BY A MIXED METHANOTROPHIC CULTURE. (R825689C041) |
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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 TRICHLOROETHYLENE AND ITS METABOLITES ON RODENT HEPATOCYTE INTERCELLULAR COMMUNICATION |
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Chronic exposure to trichloroethylene (TCE) results in hepatocellular cancer in mice but not rats. The induction of hepatic tumors by TCE appears to be mediated through nongenotoxi...
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EFFECTS OF TRICHLOROETHYLENE EXPOSURE ON MALE REPRODUCTIVE FUNCTION IN RATS |
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The present study was designed to evaluate the influences of trichloroethylene (TCE) on the reproductive system of male rats. In addition, information was obtained on the distribut...
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ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES |
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Electrochemical dechlorination of TCE was conducted in a glass column using granular graphite as electrodes. A constant voltage of 15 volt was applied resulting in 60-62 mA of curr...
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ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES |
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Electrochemical dechlorination of TCE ws conducted in a glass column using granular graphite as electrodes. A constant voltage of 15 volt was applied resulting in 60-62 mA of curre...
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ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES: IDENTIFICATION AND QUANTIFICATION OF DECHLORINATION PRODUCTS |
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Electrochemical degradation (ECD) utilizes high redox potential at the anode and low redox potential at the cathode to oxidize and/or reduce organic and inorganic contaminants. ECD...
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ELECTROCHEMICAL DEGRADATION OF ORGANIC CONTAMINANTS IN WATER AND SEDIMENTS |
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Electrochemical degradation (ECD) utilizes high redox potential at the anode and low redox potential at the cathode to oxidize and/or reduce organic and inorganic contaminants. EDC...
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ELECTROCHEMICAL DEGRADATION OF PERSISTANCE POLLUTANTS IN GROUNDWATER AND SEDIMENTS |
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Electrochemical Degradation (ECD) utilizes redox potential at the anode and the cathode to oxidize and/or reduce organic contaminants. ECD of environmentally persistence pollutants...
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ELECTROCHEMICAL DEGRADATION OF POLYCHLOROBIPHENYLS |
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Granular graphite is an ideal conductive material for electrochemical reduction technology applications in the field. Granular graphite was used to enhance the transfer of chlorina...
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ELECTROCHEMICAL DEGRADATION OF POLYCHLOROBIPHENYLS |
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Granular graphite is an ideal conductive material for electrochemical reduction technology applications in the field. Granular graphite was used to enhance the transfer of chlorina...
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ELECTROCHEMICAL DEGRADATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES: IDENTIFICATION AND QUALIFICATION OF DECHLORINATION PRODUCTS |
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TCE was successfully dechlorinated in aqueous solution using granular graphite as the cathode in a mixed electrochemical reactor. In experiments with an initial TCE concentration o...
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ELECTROCHEMICAL DEGRADATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES: IDENTIFICATION AND QUALIFICATION OF DECHLORINATION PRODUCTS |
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TCE was successfully dechlorinated in aqueous solution using granular graphite as the cathode in a mixed electrochemical reactor. In experiments with an initial TCE concentration o...
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EMERGING TECHNOLOGY BULLETIN - METHANOTROPHIC BIOREACTOR SYSTEM - BIOTROL, INC. |
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BioTrol's Methanotrophic Bioreactor is an above-ground remedial system for water contaminated with halogenated volatile organic compounds, including trichloroethylene (ICE) and rel...
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EMERGING TECHNOLOGY BULLETIN: TWO-ZONE PCE BIOREMEDIATION SYSTEM - ABB ENVIRONMENTAL SERVICES, INC. - U.S. ENVIRONMENTAL PROTECTION AGENCY |
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ABB Environmental Services, Inc.'s (ABB-ES), research has demonstrated that sequential anaerobic/aerobic biodegradation of tetrachloroethylene (PCE) is feasible if the proper condi...
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EMERGING TECHNOLOGY SUMMARY: PILOT-SCALE DEMONSTRATION OF A TWO-STAGE METHANOTROPHIC BIOREACTOR FOR BIODEGRADATION OF TRICHLOROETHENE IN GROUNDWATER |
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BioTrol, Inc., developed a two-stage, methanotrophic, bioreactor system for remediation of water contaminated with trichloroethylene (TCE) and other chlorinated, volatile, aliphati...
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EMISSIONS TESTING OF INDUSTRIAL PROCESSES BURNING HAZARDOUS WASTE MATERIALS |
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Hazardous waste incinerators are regulated under the Resource Conservation Recovery Act (RCRA). On the other hand processes that produce energy and only incidently burn hazardous w...
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ENGINEERING ASSESSMENT REPORT--HAZARDOUS WASTE COFIRING IN INDUSTRIAL BOILERS. VOLUME 2. DATA SUPPLEMENT |
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This report documents results of 42 hazardous waste combustion tests performed on 11 full-scale industrial boilers. The report discusses the boiler operating conditions, measured o...
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ENHANCED BIOREMEDIATION OF SOLVENTS IN A FRACTURED ROCK AQUIFER |
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This poster summarizes results of a technology evaluation that was conducted in conjunction with ITT Industries, Earth Tech, Inc., and the US EPA SITE program. The technology eva...
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ENHANCED SOURCE REMOVAL OF NONAQUEOUS PHASE LIQUID CONTAMINANTS BY CHEMICAL-BASED FLOODING |
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Nonaqueous phase liquids (NAPLs) such as gasoline and halogenated solvents (trichloroethylene (TCE) and teterachloroethylene (PCE), etc) enter the subsurface after a spill, or from...
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ENHANCEMENT OF TRICHLOROETHYLENE DEGRADATION IN AQUIFER MICROCOSMS BIOAUGMENTED WITH WILD TYPE AND GENETICALLY ALTERED BURKHOLDERIA (PSEUDOMONAS) CEPACIA G4 AND PR1 |
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NO ABSTRACT PROVIDED...
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ENVIRONMENTAL CARCINOGENS AND HUMAN CANCER: ESTIMATION OF EXPOSURE TO CARCINOGENS IN THE AMBIENT AIR |
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In this study, a methodology for ambient exposure analysis of carcinogens was developed based on a pilot study of the Detroit Metropolitan area. The specific aim of the analysis wa...
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ENVIRONMENTAL CHARACTERIZATION OF DISPOSAL OF WASTE OILS BY COMBUSTION IN SMALL COMMERCIAL BOILERS |
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In this project, air emission tests were conducted on seven boilers in the size range 0.4 to 15 x 10 to the 6th power Btu/hr while these boilers were firing waste oil. The main pur...
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EPA SCIENTISTS PARTICIPATE IN THE SRA 2005 ANNUAL MEETING |
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Several NCEA Scientists will be presenting at this years Society For Risk Analysis (SRA) Annual Meeting (see other sources for the SRA meeting agenda). The meet...
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EPA SITE DEMONSTRATION OF THE TERRA VAC IN SITU VACUUM EXTRACTION PROCESS IN GROVELAND, MASSACHUSETTS |
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This paper presents an EPA evaluation of the patented Terra Vac, Inc.'s in situ vacuum extraction process that was field-demonstrated on a trichloroethylene (TCE) contaminated soil...
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ESTABLISHING CHANGES IN METABOLISM OF CARBON TETRACHLORIDE IN THE PRESENCE OF TRICHLOROETHYLENE IN THE RAT THROUGH THE USE OF PHYSIOLOGICALLY BASED PHARMACOKINETIC (PBPK) MODELING |
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Toxicological interactions of chemicals can affect metabolism, often decreasing overall associated metabolic rates; and changes in metabolism can be evaluated through the use of ma...
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EVALUATING THE QUALITY OF WATER TREATED BY REDWOOD SLAT TOWER AERATORS |
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Over a two year period, the U.S. Environmental Protection Agency, Drinking Water Research Division (EPA-DWRD), and two New England water utilities evaluated the water quality from ...
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EVALUATION OF A PASSIVE MONITOR FOR VOLATILE ORGANICS |
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A laboratory investigation was conducted to determine the potential utility of a commercially available passive dosimeter for monitoring toxic volatile organic compounds at ambient...
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EVALUATION OF EMISSION TEST METHODS FOR HALOGENATED HYDROCARBONS. VOLUME I, CC14, C2H4C12, C2C14, AND C2HC13 |
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A test method for halogenated hydrocarbons has been evaluated and information is provided for the user. Four compounds were investigated, carbon tetrachloride, ethylene dichloride,...
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EVALUATION OF EXPOSURE MARKERS |
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The primary purpose of this research has been to determine the suitability of this single cell gel (SCG) assay technique for detecting DNA damage induced by enotoxic pollutants in ...
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EVALUATION OF GROUNDWATER FLOW PATTERNS AROUND A DUAL-SCREENED GROUNDWATER CIRCULATION WELL |
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Dual-screened groundwater circulation wells (GCWs) can be used to remove contaminant mass and to mix reagents in situ. GCWs are so named because they force water in a circular patt...
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EVALUATION OF MULTIPLE PHARMACOKINETIC MODELING STRUCTURES FOR TRICHLOROETHYLENE |
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A series of PBPK models were developed for trichloroethylene (TCE) to evaluate biological processes that may affect the absorption, distribution, metabolism and excretion (ADME) of...
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EVALUATION OF PARTS-PER-BILLION (PPB) ORGANIC CYLINDER GASES FOR USE AS AUDITS DURING HAZARDOUS WASTE TRIAL BURN TESTS |
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A repository of 14 gaseous organic compounds at parts-per-billion levels (7-430 ppb) in compressed gas cylinders has been established by the Environmental Protection Agency. This r...
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EVALUATION OF SELECTED GASEOUS HALOCARBONS FOR USE IN SOURCE TEST PERFORMANCE AUDITS |
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A repository of 38 gaseous organic compounds in compressed gas cylinders has been established by the U.S. Environmental Protection Agency. This repository was established to provid...
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EVALUATION OF THE MIDDAS SYSTEM FOR DESIGNING GAC ADSORBERS |
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The Micro-Diameter-Depth Adsorption System (MIDDAS) was evaluated for its usefulness in determining equilibrium parameters for adsorption in granular activated carbon (GAC) systems...
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EVALUATION OF THE MIDDAS SYSTEM FOR DESIGNING GAC ADSORBERS |
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The Micro-Diameter-Depth Adsorption System (MIDDAS) was evaluated for its usefulness in determining equilibrium parameters for adsorption in granular activated carbon (GAC) systems...
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EVALUATION OF THE PROTOCOL FOR NATURAL ATTENUATION OF CHLORINATED SOLVENTS: CASE STUDY AT THE TWIN CITIES ARMY AMMUNITION PLANT |
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At the request of staff in the EPA Regions, EPA's Office of Research and Development
carried out an independent evaluation of the Technical Protocol for Evaluating Natural Atten...
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EVALUATION OF THE PROTOCOL FOR THE NATURAL ATTENUATION OF CHLORINATED SOLVENTS: CASE STUDY AT THE TWIN CITIES ARMY AMMUNITION PLANT |
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At the request of staff in the EPA Regions, EPA?s Office of Research and Development carried out an independent evaluation of the Technical Protocol for Evaluating Natural Attenuat...
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EVALUATION OF THE PROTOCOL FOR THE NATURAL ATTENUATION OF CHLORINATED SOLVENTS: CASE STUDY AT THE TWIN CITIES ARMY AMMUNITION PLANT (EPA/600/R-01/025) |
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At the request of staff in the EPA Regions, EPAs Office of Research and Development carried out an independent evaluation of the Technical Protocol for Evaluating Natural Attenuati...
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EVALUATION OF THE ROLE OF DEHALOCOCCOIDES ORGANISMS IN THE NATURAL ATTENUATION OF CHLORINATED ETHYLENES IN GROUNDWATER |
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At most hazardous waste sites where monitored natural attenuation (MNA) of chlorinated solvents in ground water is successful as a remedy, the chlorinated solvents are biologically...
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EXPERIMENTAL STUDY OF COMPLETE DISSOLUTION OF A NONAQUEOUS PHASE LIQUID IN SATURATED POROUS MEDIA |
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The attenuation of gamma radiation was utilized to measure changing residual trichloroethylene (TCE) saturation in an otherwise water-saturated porous medium as clean water was flu...
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EXPOSURE DOSE REPONSE MODELING FOR THE EFFECTS OF HAZARDOUS AIR POLLUTANTS ON HEALTH: TRICHLOROETHYLENE |
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Trichloroethylene (TCE) is a neurotoxic volatile organic compound (VOC) that is produced in large quantities as a degreasing agent and general solvent, and it appears on the list o...
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EXPOSURE-DOSE-RESPONSE MODELING OF THE NEUROTOXIC EFFECTS OF ORGANIC SOLVENTS. |
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Risk assessments based on exposure to volatile organic compounds (VOCs) are hampered by the complexities of exposure scenarios, a lack of data regarding the mode of action of the V...
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FACTORS INFLUENCING RATES AND PRODUCTS IN THE TRANSFORMATION OF TRICHLOROETHYLENE BY IRON SULFIDE AND IRON METAL. (R825958) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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FATE AND TRANSPORT OF TRICHLOROETHYLENE IN A CHAMBER WITH ALFALFA PLANTS. (R825549C062) |
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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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FIELD APPLICATIONS OF CHEMICAL TIME-SERIES SAMPLING |
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Two municipal supply wells in Lakewood, Washington, were found to be contaminated with trichloroethylene, transdichloroethylene, and tetrachloroethylene. Sequential samples were ta...
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FIELD EVALUATION OF AERATION PROCESSES FOR ORGANIC CONTAMINANT REMOVAL FROM GROUNDWATER |
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The results of the pilot plant evaluation of aeration methods for the removal of volatile organic solvents from ground water are presented. The project took place at Glen Cove, Lon...
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FIELD EVALUATION OF IN SITU AEROBIC COMETABOLISM OF TRICHLOROETHYLENE AND THREE DICHLOROETHYLENE ISOMERS USING PHENOL AND TOLUENE AS THE PRIMARY SUBSTRATES. (R825689C050,R825689C066) |
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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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FIELD MEASUREMENT OF VAPOR INTRUSION RATES AT A PCE SITE |
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A field study was performed to evaluate vapor intrusion (VI) of tetrachloroethylene (PCE) and other chlorinated solvents at a commercial retail site in Dallas, TX. The building is ...
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FIELD SCALE EVALUATION OF TREATMENT OF TCE IN A BIOWALL AT THE OU-1 SITE |
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A passive reactive barrier (Biowall) was installed at the OU-1 site at Altus Air Force Base, Oklahoma to treat TCE contamination in ground water from a landfill. Depth to ground w...
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FIELD VALIDATION OF EPA (ENVIRONMENTAL PROTECTION AGENCY) REFERENCE METHOD 23 |
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The accuracy and precision of U.S. Environmental Protection Agency Reference Method 23 was evaluated at a trichloroethylene degreasing facility and an ethylene dichloride plant. Th...
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FORMATION AND CHARACTERIZATION OF SOOT DEPOSITS FROM NON-OPTIMUM COMBUSTION OF NO. 6 FUEL OIL WITH CHLORINATED ORGANIC COMPOUNDS IN AN INDUSTRIAL BOILER |
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During a full-scale hazardous waste combustion study performed for EPA, sampling and analysis was conducted on both stack gases and solid "soot" collected from a boiler's interior ...
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FORMATION PROCESSES AND CONSEQUENCES OF REACTIVE AND NON-REACTIVE MINERAL PRECIPITATES IN PERMEABLE REACTIVE BARRIERS |
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Mineral precipitates in zero-valent iron PRBs can be classified by formation processes into three groups: 1) those that result from changes in chemical conditions (i.e., change in ...
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FRACTIONATION OF STABLE CARBON ISOTOPES DURING ABIOTIC TRANSFORMATION OF TCE |
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At a Superfund Site in Minnesota, ground water is contaminated with trichloroethylene (TCE) with the contaminant plume stretching over five miles long. The ground water is iron an...
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FULL SCALE EVALUATION OF IN SITU COMETABOLIC DEGRADATION OF TRICHLOROETHYLENE IN GROUNDWATER THROUGH TOLUENE INJECTION. (R825689C067) |
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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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FULL-SCALE DEMONSTRATION OF IN SITU COMETABOLIC BIODEGRADATION OF TRICHLOROETHYLENE IN GROUNDWATER, 1: DYNAMICS OF A RECIRCULATING WELL SYSTEM. (R828772) |
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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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FULL-SCALE DEMONSTRATION OF IN SITU COMETABOLIC BIODEGRADATION OF TRICHLOROETHYLENE IN GROUNDWATER, 2: COMPREHENSIVE ANALYSIS OF FIELD DATA USING REACTIVE TRANSPORT MODELING. (R828772) |
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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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FULL-SCALE VIBRATING PERVAPORATION MEMBRANE UNIT: VOC REMOVAL FROM WATER AND SURFACTANT SOLUTIONS |
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A commercial-scale vibrating membrane system with 10 square meters of membrane area was evaluated for the separation of volatile organic compounds (VOCs) from aqueous solutions by ...
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GASEOUS BEHAVIOR OF TCE (TRICHLOROETHYLENE) OVERLYING A CONTAMINATED AQUIFER |
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Shallow soil gas (<2 meters deep) was collected and analyzed for trichloroethylene (TCE) to determine the relationship with ground-water contamination directly below. The gaseous T...
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GRAND PLAZA SITE INVESTIGATION USING THE TRIAD APPROACH AND EVALUATION OF VAPOR INTRUSION - (ITER) |
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This document provides a detailed report about a field study conducted by EQM/URS on behalf of EPA/NRMRL to characterize the subsurface contamination of volatile organic compounds ...
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GROUND WATER CONTAMINANTS AND THEIR SOURCES - A REVIEW OF STATE REPORTS |
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Pursuant to section 305(B) of the Clean Water Act of 1987, each state submits biennially a water quality report to the U.S. Environmental Protection Agency (EPA). his paper contain...
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GROUNDWATER AND SOIL REMEDIATION USING ELECTRICAL FIELD |
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Enhancements of contaminants removal and degradation in low permeability soils by electrical fields are achieved by the processes of electrical heating, electrokinetics, and electr...
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HARMONIZATION AND COMMUNICATION OF PBPK MODELS USING THE EXPOSURE RELATED DOSE ESTIMATION MODEL (ERDEM) SYSTEM: TRICHLOROETHYLENE |
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In support of the trichloroethylene (TCE) risk assessment for the Office of Air and Radiation, Office of Solid Waste and Emergency Response, and Office of Water, NERL and NCEA are ...
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HARMONIZATION AND COMMUNICATION OF PBPK MODELS USING THE EXPOSURE RELATED DOSE MODEL (ERDEM) SYSTEM: TRICHLOROETHYLENE |
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In support of the trichloroethylene (TCE) risk assessment for the Office of Air and Radiation, Office of Solid Waste and Emergency Response, and Office of Water, NERL and NCEA ar...
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HENRY'S LAW CONSTANTS AND MICELLAR PARTITIONING OF VOLATILE ORGANIC COMPOUNDS IN SURFACTANT SOLUTIONS |
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Partitioning of volatile organic compounds (VOCs) into surfactant micelles affects the apparent vapor-liquid equilibrium of VOCs in surfactant solutions. This partitioning will co...
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HETEROGENEOUS PHOTOCATALYTIC DECOMPOSITION OF POLY- AROMATIC HYDROCARBONS OVER TITANIUM DIOXIDE |
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The photocatalytic degradation of a mixture of 16 polyaromatic hydrocarbons (PAHs) was investigated in aqueous suspensions of high surface area TiO2 illuminated with 310...
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HUMAN ALPHA-7 NICOTINIC ACETYLCHOLINE RECEPTORS EXPRESSED IN XENOPUS OOCYTES ARE INHIBITED BY TRICHLOROETHYLENE. |
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Trichloroethylene (TCE) is a volatile organic solvent (VOC) that is used as a metal degreasing agent and in paints and glue. In addition to being a commonly abused inhalant, run-o...
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HYDROGEN CONCENTRATIONS IN SULFATE-REDUCING ESTUARINE SEDIMENTS DURING PCE DEHALOGENATION |
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Despite recent progress made evaluating the role of hydrogen (H2) as a key electron donor in the anaerobic remediation of chloroethenes, few studies have focused on the evaluation ...
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IDENTIFICATION OF CHLOROMETHANE FORMATION PATHS DURING ELECTROCHEMICAL DECHLORINATION OF TCE USING GRAPHITE ELECTRODES |
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The purpose of this research is to investigate the formation of chloromethane during TCE dechlorination in a mixed electrochemical reactor using graphite electrodes. Chloromethane ...
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IMMUNOMODULATION BY TRICHLOROETHYLENE IN THE AUTOIMMUNE PRONE MRL+/+ MICE. (R826409) |
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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 TRICHLOROETHYLENE AND TOLUENE ON NITROGEN CYCLING IN SOIL. (R825433) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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IN SITU DESTRUCTION OF CHLORINATED HYDROCARBON COMPOUNDS IN GROUNDWATER USING CATALYTIC REDUCTIVE REDUCTIVE DEHALOGENATION IN A REACTIVE WELL: TESTING AND OPERATIONAL EXPERIENCES. (R825421) |
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A groundwater treatment technology based on catalytic reductive
dehalogenation has been developed to efficiently destroy chlorinated
hydrocarbons in situ using a reactiv...
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IN SITU FLOW METERS AROUND A GROUNDWATER CIRCULATION WELL (ABSTRACT) |
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The primary benefit of groundwater circulation well (GCW) technology is the development of strong vertical flows surrounding the treatment well. The extent of significant vertical ...
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IN SITU FLOW METERS AROUND A GROUNDWATER CIRCULATION WELL (PAPER) |
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The primary benefit of groundwater circulation well (GCW) technology is the development of strong vertical flows surrounding the treatment well. The extent of significant vertical ...
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IN-PLACE REGENERATION OF GAC USING FENTON'S REAGENTS |
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This paper evaluates the feasibility of using Fenton’s reagents for in-place recovery of spent granular activated carbon (GAC). Fenton’s reagents are cycled through spent GAC to d...
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IN-PLACE REGENERATION OF SVE LOADED GAC USING FENTON'S REAGENTS |
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Ten out of the 25 most frequently detected groundwater contaminants at hazardous waste sites are chlorinated volatile organic compounds (VOCs) 1. Trichloroethylene (TCE) and tetra...
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IN-PLACE REGENERATION OF SVE LOADED GAC USING FENTON'S REAGENTS |
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Ten out of the 25 most frequently detected groundwater contaminants at hazardous waste sites are chlorinated volatile organic compounds (VOCs) 1 . Trichloroethylene (TCE) and tet...
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INDOOR AIR QUALITY DATA BASE FOR ORGANIC COMPOUNDS |
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The report gives results of the compilation of a data base for concentrations of organic compounds measured indoors. ased on a review of the literature from 1979 through 1990, the ...
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INFLUENCE OF ENDOGENOUS AND EXOGENOUS ELECTRON DONORS AND TRICHLOROETHYLENE OXIDATION TOXICITY ON TRICHLOROETHYLENE OXIDATION BY METHANOTROPHIC CULTURES FROM A GROUND WATER AQUIFER. (R825689C036) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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INFLUENCE OF THE ENDOGENOUS STORAGE LIPID POLY-B-HYDROXYBUTYRATE ON THE REDUCING POWER AVAILABILITY DURING COMETABOLISM OF TRICHLOROETHYLENE AND NAPTHALENE BY RESTING METHANOTROPHIC MIXED CULTURES. (R825689C036) |
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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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INFLUENCES OF PH AND CURRENT ON ELECTROLYTIC DECHLORINATION OF TRICHLOROETHYLENE AT A GRANULAR-GRAPHITE PACKED ELECTRODE |
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Electrolytic dechlorination using a granular-graphite packed cathode is an alternative method for the remediation of chlorinated organic compounds. Its effectiveness under various ...
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INHALATION EXPOSURE IN THE HOME TO VOLATILE ORGANIC CONTAMINANTS OF DRINKING WATER |
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The field studies show that indoor air concentrations of volatilized trichloroethylene (TCE) can be substantial when TCE-contaminated water is used domestically. Using a model show...
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INHIBITION OF CYP2E1 REVERSES CD4+ T CELL ALTERATIONS IN TRICHLOROETHYLENE-TREATED MRL+/+ MICE. (R826409) |
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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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INHIBITION OF HUMAN A7 NEURONAL NICOTINIC ACETYLCHOLINE RECEPTORS BY THE VOLATILE ORGANIC SOLVENT TRICHLOROETHYLENE. |
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Volatile organic compounds such as toleune, trichloroethylene and perchloroethylene are potent and reversible blockers of voltage-gated calcium current in nerve growth factor (NGF)...
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INHIBITION OF TRICHLOROETHYLENE OXIDATION BY THE TRANSFORMATION INTERMEDIATE CARBON MONOXIDE. (R825689C036) |
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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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INHIBITION, INACTIVATION, AND RECOVERY OF AMMONIA-OXIDIZING ACTIVITY IN COMETABOLISM OF TRICHLOROETHYLENE BY NITROSOMAS EUROPAEA. (R825689C009) |
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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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INTEGRATED PROBABILISTIC AND DETERMINISTIC MODELING TECHNIQUES IN ESTIMATING EXPOSURE TO WATER-BORNE CONTAMINANTS: PART 2 PHARMACOKINETIC MODELING |
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The Total Exposure Model (TEM) uses deterministic and stochastic methods to estimate the exposure of a person performing daily activities of eating, drinking, showering, and bath...
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INTEGRATION OF PHOTOCATALYTIC OXIDATION WITH AIR STRIPPING OF CONTAMINATED AQUIFERS |
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Bench scale laboratory studies and pilot scale studies in a simulated field-test situation were performed to evaluate the integration of gas-solid ultaviolet (UV) photocatalytic ox...
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INTERCOMPARISON OF SAMPLING TECHNIQUES FOR TOXIC ORGANIC COMPOUNDS IN INDOOR AIR |
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People spend a major fraction of their time indoors, and there is concern over exposure to volatile organic compounds present in indoor air. The study was initiated to compare seve...
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INTERIM REPORT ON PIC (PRODUCTS OF INCOMPLETE COMBUSTION) MINIMIZATION IN A RESEARCH COMBUSTOR |
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A series of five organic compounds (1,1,2,2-tetrachloroethane, trichloroethylene, Freon-113, carbon tetrachloride and chlorobenzene) were burned in heptane in a 100,000 Btu/hour wa...
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INTERINDIVIDUAL VARIANCE OF CYTOCHROME P450 FORMS IN HUMAN HEPATIC MICROSOMES: CORRELATION OF INDIVIDUAL FORMS WITH XENOBIOTIC METABOLISM AND IMPLICATIONS IN RISK ASSESSMENT |
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Differences in biotransformation activities may alter the bioavailability or efficacy of drugs, provide protection from certain xenobiotic and environmental agents, or increase tox...
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INTERNAL DOSE AND RESPONSE IN REAL-TIME. |
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Abstract: Rapid temporal fluctuations in exposure may occur in a number of situations such as accidents or other unexpected acute releases of airborne substances. Often risk asses...
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INVESTIGATION OF THE INDOOR AIR QUALITY OF THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES AT 3800 BARRETT DRIVE, RALEIGH, NC |
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A limited-scale indoor air quality investigation was conducted over a 4 day period at the North Carolina Department of Environment, Health, and Natural Resources' offices located a...
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IRIS TOXICOLOGICAL REVIEW AND SUMMARY DOCUMENTS FOR TRICHLOROETHYLENE |
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This assessment presents EPA's most current evaluation of the potential health risks from exposure to TCE (trichloroethylene). TCE exposure is associated with several adverse heal...
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IS THE INDUCTION OF MUTATION A KEY EVENT IN THE ETIOLOGY OF TRICHLOROETHYLENE-INDUCED TUMORS? |
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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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Increasing Confidence In Treatment Performance Assessment Using Geostatistical Methods |
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It is well established that the presence of dense non-aqueous phase liquids (DNAPLs) such as trichloroethylene (TCE) in aquifer systems represents a very long-term source of ground...
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KINETIC STUDIES OF THE REACTION OF HYDROXYL RADICALS WITH TRICHLOROETHYLENE AND TETRACHLOROETHYLENE. (R826169) |
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Rate coefficients are reported for the gas-phase reaction of the hydroxyl radical (OH) with C2HCl3 (k1) and C2Cl4 (...
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KINETICS OF THE TRANSFORMATION OF TRICHLOROETHYLENE AND TETRACHLOROETHYLENE BY IRON SULFIDE. (R825958) |
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The transformation of nine halogenated aliphatic compounds
by 10 g/L (0.5 m2/L) FeS at pH 8.3 was studied in batch
experiments. These compounds were as follows:...
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KINETICS OF TRICHLOROETHYLENE COMETABOLISM AND TOLUENE BIODEGRADATION: MODEL APPLICATION TO SOIL BATCH EXPERIMENTS. (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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LABORATORY AND FIELD EVALUATIONS OF METHODOLOGY FOR MEASURING EMISSIONS OF CHLORINATED SOLVENTS FROM STATIONARY SOURCES |
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An evaluation of the use of EPA Method 18 for sampling and analysis of chlorinated solvents was needed to support possible future regulations by the U.S. Environmental Protection A...
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LABORATORY EVALUATION OF COMMERCIALLY AVAILABLE PASSIVE ORGANIC PERSONAL MONITORS |
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A laboratory investigation was conducted to determine the potential utility and limitations for the use of commercially available passive dosimeters for monitoring volatile organic...
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LOSS/GAIN OF VOCS FROM TEDLAR BAGS AND OTHER SAMPLING EQUIPMENT |
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Soil gas samples are collected to evaluate human health risk from vapor intrusion into homes and other buildings. In order to meet risk assessment goals, the analytical reporting ...
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LOW-FLOW PURGING AND SAMPLING OF GROUND WATER MONITORING WELLS WITH DEDICATED SYSTEMS |
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A field study was conducted to assess purging requirements for dedicated sampling systems in conventional monitoring wells and for pumps encased in short screens and buried within ...
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MANAGING EXPOSURES TO NEUROTOXIC AIR POLLUTANTS. |
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Researchers at EPA's National Health and Environmental Effects Research Laboratory are developing a biologically-based dose-response model to describe the neurotoxic effects of exp...
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MEASUREMENT OF MASS TRANSFER RATES FOR SURFACTANT-ENHANCED SOLUBILIZATION OF NONAQUEOUS PHASE LIQUIDS. (R825405) |
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Surfactant-enhanced solubilization of residual, nonaqueous-phase liquid (NAPL) contaminants is an emerging, subsurface remediation technology. The potential for nonequilibrium cond...
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MEMBRANE-MODERATED STRIPPING PROCESS FOR REMOVING VOCS FROM WATER IN A COMPOSITE HOLLOW FIBER MODULE. (R825511C027) |
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The "stripmeation" process for removing volatile organic compounds (VOCs) from water has been introduced and studied. An aqueous solution of the VOC is passed through th...
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METABOLISM, TOXICITY AND CARCINOGENICITY OF TRICHLOROETHYLENE |
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Lifetime cancer or unit risk estimates for tichloroethylene (TRI) have been calculated on the basis of metabolized dose-tumor incidence relationships. reviously, it was common prac...
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METRICS OF PERFORMANCE FOR THE SABRE MICROCOSM STUDY |
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The SABRE (Source Area BioREmediation) project will evaluate accelerated anaerobic bioremediation of chlorinated solvents in areas of high concentration, such as DNAPL source areas...
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MICROBIAL REMOVAL OF HALOGENATED METHANES, ETHANES, AND ETHYLENES IN AN AEROBIC SOIL EXPOSED TO METHANE. (JOURNAL VERSION) |
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Contamination of ground water with halogenated aliphatic hydrocarbons threatens the source of drinking water. To study microbial processes that may enhance the removal of these com...
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MICROBIOLOGICAL AND GEOCHEMICAL CONSIDERATIONS |
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This presentation is a review of a number of separate topics related to in situ biodegradation of chlorinated organic compounds in ground water. The first section deals with the p...
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MICROCOSM AND IN SITU FIELD STUDIES OF ENHANCED BIOTRANSFORMATION OF TRICHLOROETHYLENE BY PHENOL-UTILIZING MICROORGANISMS |
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The ability of different aerobic groundwater microorganisms to cometabolically degrade trichloroethylene (TCE), 1,2-cis-dichloroethylene (c-DCE), and 1,2-trans-dichloroethylene (t-...
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MICROCOSM AND IN SITU FIELD STUDIES OF ENHANCED BIOTRANSFORMATION OF TRICHLOROETHYLENE BY PHENOL-UTILIZING MICROORGANISMS. (R825689C066) |
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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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MICROEMULSION FORMATION WITH CHLORINATED HYDROCARBONS OF DIFFERING POLARITY |
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Winsor Type I (o/w), Type II (w/o), and Type III (middle phase) microemulsions have been produced for water and CC14, water and trichloroethylene (TCE), and water and 1,2-dichlorob...
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MICROINJECTION OF FISH EMBRYOS AS A LABORATORY ASSAY FOR CHEMICAL CARCINOGENS |
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Techniques were developed for microinjection of chemicals into fish embryos for use in carcinogenicity assays. Eggs of the following were injected: gulf killifish (Fundulus grandis...
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MID-FREQUENCY HEARING LOSS IN RATS FOLLOWING INHALATION EXPOSURE TO TRICHLOROETHYLENE: EVIDENCE FROM REFLEX MODIFICATION AUDIOMETRY |
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The present experiments were undertaken in order to characterize the hearing loss associated with 1,1,2-trichloroethylene (TCE) exposure. dult male LE rats were exposed to TCE via ...
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MODEL DEVELOPMENT AND EVALUATION FOR TRICHLOROETHYLENE METABOLISM IN HUMANS |
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Trichloroethylene (TCE) is an industrial chemical and an environmental contaminant. TCE and its metabolites may be carcinogenic and affect human health. Physiologically based pha...
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MODEL FOR TREATMENT OF TRICHLOROETHYLENE BY METHANOTROPHIC BIOFILMS. (R825689C056) |
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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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MODEL FOR TREATMENT OF TRICHLOROETHYLENE BY METHANOTROPHIC BIOFILMS. (R826170) |
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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoi...
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MODELING THE ELECTROLYTIC DECHLORINATION OF TRICHLOROETHYLENE IN A GRANULAR GRAPHITE-PACKED REACTOR |
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A comprehensive reactor model was developed for the electrolytic dechlorination of trichloroethylene (TCE) at a granular-graphite cathode. The reactor model describes the dynamic p...
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MODELING VOLATILE ORGANIC COMPOUND PHARMACOKINETICS IN RAT PUPS |
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PBPK model predictions of internal dosimetry in young rats were compared to adult animals for benzene, chloroform (CHL), methylene chloride, methyl ethly ketone (MEK), perchloroeth...
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MOLECULAR AND CELLULAR FUNDAMENTALS OF AEROBIC COMETABOLISM OF TRICHLOROETHYLENE. (R825689C027) |
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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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MOLECULAR AND CELLULAR FUNDAMENTALS OF AEROBIC COMETABOLISM OF TRICHLOROETHYLENE. (R828772) |
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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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MOMENTARY BRAIN CONCENTRATION OF TRICHLOROETHYLENE PREDICTS THE EFFECTS ON RAT VISUAL FUNCTION. |
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This manuscript demonstrates that the level neurological impairment following acute reversible exposure to trichloroethylene, a volatile organic compound, is more accurately descri...
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MOVEMENT OF TRICHLOROETHYLENE IN CALICHE |
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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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MOVING FROM EXTERNAL EXPOSURE CONCENTRATION TO INTERNAL DOSE: DURATION EXTRAPOLATION BASED ON PHYSIOLOGICALLY-BASED PHARMACOKINETIC-MODEL DERIVED ESTIMATES OF INTERNAL DOSE |
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The potential human health risk(s) from exposure to chemicals under conditions for which adequate human or animal data are not available must frequently be assessed. Exposure scen...
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MULTIDISCIPLINARY APPROACH TO TOXICOLOGICAL SCREENING: I. SYSTEMIC TOXICITY |
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The toxicity of 10 chemicals (carbaryl, carbon tetrachloride, chlordane, ethylhexylphthalate, dichloromethane, heptachlor, phenol, tetrachloroethylene, triadimefon, and trichloroet...
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MULTIDISCIPLINARY APPROACH TO TOXICOLOGICAL SCREENING: II. DEVELOPMENTAL TOXICITY |
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As part of the validation of an integrated bioassay for systemic, neuro-, and developmental toxicity, we evaluated the responses of Fischer-344 rats to four pesticides, four chlori...
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MULTIDISCIPLINARY APPROACH TO TOXICOLOGICAL SCREENING: IV. COMPARISON OF RESULTS |
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Toxicity data collected under standardized test conditions may be of the utmost importance in health risk assessment, in which human exposure limits are often derived from laborato...
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MULTIVARIATE ANALYSIS ON LEVELS OF SELECTED METALS, PARTICULATE MATTER, VOC, AND HOUSEHOLD CHARACTERISTICS AND ACTIVITIES FROM THE MIDWESTERN STATES NHEXAS |
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Microenvironmental and biological/personal monitoring information were collected during the National Human Exposure Assessment Survey (NHEXAS), conducted in the six states compri...
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MUTAGENICITY OF SELECTED ORGANIC SOLVENTS |
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Mutagenicity of selected organic solvents. Scand J Work Environ Health 11 (1985): suppl 1, 75-82. For certain organic solvents, such as benzene, vinyl chloride, styrene, technical ...
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MUTAGENICITY OF TRICHLOROETHYLENE AND ITS METABOLITES: IMPLICATIONS FOR THE RISK ASSESSMENT OF TRICHLOROETHYLENE |
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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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MUTANTS OF PSEUDOMONAS CEPACIA G4 DEFECTIVE IN CATABOLISM OF AROMATIC COMPOUNDS AND TRICHLOROETHYLENE |
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Pseudomonas cepacia strain G4 possesses a novel pathway of toluene catabolism that is shown to be responsible for the degradation of trichloroethylene (TCE). his pathway involves c...
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NEUROBEHAVIORAL EVALUATIONS OF BINARY AND TERTIARY MIXTURES OF CHEMICALS: LESSIONS LEARNING. |
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The classical approach to the statistical analysis of binary chemical mixtures is to construct full dose-response curves for one compound in the presence of a range of doses of the...
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NEUROBEHAVIORAL EVALUATIONS OF MIXTURES OF TRICHLOROETHYLENE, HEPTACHLOR, AND DI-(2-ETHYLHEXYL)PHTHALATE IN A FULL-FACTORIAL DESIGN. |
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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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NEUROTOXIC AND PHARMACOKINETIC RESPONSES TO TRICHLOROETHYLENE AS A FUNCTION OF EXPOSURE SCENARIO |
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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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NEUROTOXICITY CHEMICAL MIXTURES: AN EXAMPLE OF OTOTOXICITY PRODUCED BY COMBINED SOLVENTS. |
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There are relatively few studies in the experimental literature examining the toxicity of combined exposure to environmental neurotoxicants. In the absence of experimental data, r...
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NHEXAS PHASE I ARIZONA STUDY--STANDARD OPERATING PROCEDURE FOR USE OF A PASSIVE SAMPLING DEVISE FOR THE COLLECTION OF AIRBORNE VOCS AT FIXED INDOOR AND OUTDOOR SITES (UA-F-12.0) |
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The purpose of this SOP is to describe the methods used to sample residential indoor and outdoor atmospheres for the presence of certain volatile organic compounds (VOCs) by means ...
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NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF DRINKING WATER SAMPLES FOR VOCS BY EPA METHOD 524.2 (RTI/ACS-AP-209-003) |
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This protocol describes the procedures for the collection, storage, and shipping of drinking water samples for volatile organic chemicals (VOCs) for analysis by EPA Method 524.2 (v...
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NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION/STORAGE/SHIPMENT OF SAMPLES FOR VOLATILE ORGANIC COMPOUNDS IN PERSONAL/INDOOR/OUTDOOR/OCCUPATIONAL AIR (RTI/ACS-AP-209-012) |
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This protocol describes the procedures for the collection of volatile organic compounds (VOCs) in air on passive charcoal badges, and the procedures for storing and shipping of the...
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NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF VOLATILE ORGANIC COMPOUNDS FROM CHARCOAL BADGES BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY (RTI/ACS-AP-209-112) |
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This protocol provides guidelines for determining volatile organic hydrocarbons (VOCs) in air samples by gas chromatography/mass spectrometry (GC/MS). This method is for the analys...
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NONADDITIVE DEVELOPMENTAL TOXICITY IN MIXTURES OF TRICHLOROETHYLENE, DI(2-ETHYLHEXYL) PHTHALATE, AND HEPTACHLOR IN A 5 X 5 X 5 DESIGN |
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NO ABSTRACT PROVIDED...
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NOVEL AND SIMPLE APPROACH TO ELIMINATION OF DILUTE TOXIC WASTES BASED ON PHOTOELECTROCHEMICAL SYSTEMS |
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This work investigated several basic parameters, important for extending photocatalytic purification of water contaminated with trichloroethylene (TCE), from the laboratory to the ...
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NOVEL PATHWAY OF TOLUENE CATABOLISM IN THE TRICHLOROETHYLENE DEGRADING BACTERIUM G4 |
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o-Cresol and 3-methylcatechol were identified as successive transitory intermediates of toluene catabolism by the trichloroethylene-degrading bacterium G4. he absence of a toluene ...
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OTOTOXICITY OF TRICHLOROETHYLENE: EXTRAPOLATION AND RELEVANCE OF HIGH-CONCENTRATION, SHORT-DURATION ANIMAL EXPOSURE DATA |
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NO ABSTRACT PROVIDED...
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OXIDATIVE STRESS AND ENDOTHELIAL CELL DAMAGE IN AUTOIMMUNE-PRONE MRL+/+ MICE FOLLOWING TRICHLOROETHYLENE TREATMENT. (R826409) |
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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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PD-CATALYZED TCE DECHLORINATION IN GROUNDWATER: SOLUTE EFFECTS, BIOLOGICAL CONTROL, AND OXIDATIVE CATALYST REGENERATION. (R825421) |
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The performance of a Pd-on-![]()
src="/ncer/pubs/images/gamma.gif">-Al2O3 catalyst for
dechlorination of trichloroethylene (TCE) was evalua...
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PERCHLOROETHYLENE (PERC) INHIBITS FUNCTION OF VOLTAGE-GATED CALCIUM CHANNELS IN PHEOCHROMOCYTOMA CELLS. |
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The industrial solvent perchloroethylene (PERC) is listed as a hazardous air pollutant in the 1990 Ammendments to Clean Air Act and is a known neurotoxicant. However, the mechanism...
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PERFORMANCE CHARACTERIZATION OF A MODEL BIOREACTOR FOR THE BIODEGRADATION OF TRICHLOROETHYLENE BY PSEUDOMONAS CEPACIA G4 |
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Pseudomonad cepacia G4 grown in chemostats with phenol demonstrated constant specific degradation rates for both phenol and TCE over a range of dilution rates. ashout of cells was ...
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PERFORMANCE OF LABORATORY FLOW-THROUGH COLUMN SYSTEMS SIMULATING DECHLORINATION OF TRICHLOROETHYLENE IN GROUND WATER BY A TREE MULCH BIOWALL |
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The U.S. Air Force has developed a novel remedial technology for treatment of ground water that is contaminated with chlorinated solvents. The contamination is treated in a reacti...
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PERTURBATION OF VOLTAGE-SENSITIVE CALCIUM FUNCTION IN PHEOCHROMOCYTOMA CELLS BY VOLATILE ORGANIC SOLVENTS. |
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Volatile organic solvents such as toluene (TOL) and trichloroethylene perturb nervous system function and share characteristic effects with other central nervous system depressants...
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PHENOL AND TRICHLOROETHYLENE DEGRADATION BY PSEUDOMONAS CEPACIA STRAIN G4: KINETICS AND INTERACTIONS BETWEEN COMETABOLITES |
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Intact cells of pseudomonas cepacia strain G4 completely degraded trichloroethylene (TCE) following growth with phenol. egradation kinetics were determined for both phenol, used to...
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PHOTOCATALYTIC TREATMENT OF AIR EMISSIONS RESULTING FROM GROUND-WATER TREATMENT, "GROUND WATER CURRENTS": NEWSLETTER |
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NEWSLETTER NRMRL-CIN-1727
Gallardo*, V. Photocatalytic Treatment of Air Emissions Resulting from Ground-water Treatment,
"Ground Water Currents" EPA/542-N-01-008, Issue 42. 2001. ...
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PHOTOCATALYTIC TREATMENT OF AIR EMISSIONS RESULTING FROM GROUND-WATER TREATMENT, "GROUND WATER CURRENTS" EPA/542-N-01-008, ISSUE 42 |
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A new system for treating off-gas from ground water remediation systems containing chlorinated organic compounds has been demosntrated under USEPA's Superfund Innovative Technical ...
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PHYSIOLOGICAL PHARMACOKINETIC MODELING OF INHALED TRICHLOROETHYLENE IN RATS |
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Development of physiologically-based pharmacokinetic models should increase the accuracy of high to low dose extrapolations and experimental animal to human extrapolations, resulti...
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PHYSIOLOGICALLY BASED PHARMACOKINEITC (PBPK) MODELING OF METABOLIC INHIBITION FOR INTERACTION BETWEEN TRICHLOROETHYLENE AND CHLOROFORM |
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Trichloroethylene (TCE) and chloroform (CHCl3) are two of the most common environmental contaminants found in water. PBPK models have been increasingly used to predict target dose ...
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PHYSIOLOGICALLY BASED PHARMACOKINETIC MODELS FOR THE TRANSPORT OF TRICHLOROETHYLENE IN ADIPOSE TISSUE |
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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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PHYTOREMEDIATION OF GROUNDWATER AT AIR FORCE PLANT 4, CARSWELL, TEXAS - INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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Over 600 Cottonwood trees were planted over a shallow groundwater plume in an attempt to detoxify the trichloroethylene (TCE) in a groundwater plume at a former Air Force facility....
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PILOT SCALE REACTOR FOR ELECTROCHEMICAL DECHLORINATION OF MODEL CHLORINATED CONTAMINANTS |
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Electrochemical degradation (ECD) is a promising technology for in-situ remediation of diversely contaminated submarine matrices, by the application of low level DC electric...
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PLANT MULCH TO TREAT TCE IN GROUND WATER IN A PRB |
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In the past ten years, passive reactive barriers (PRBs) have found widespread application to treat chlorinated solvent contamination in ground water. The traditional PRB commonly ...
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PREDICTING THE RISKS OF NEUROTOXIC VOLATILE ORGANIC COMPOUNDS BASED ON TARGET TISSUE DOSE. |
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Quantitative exposure-dose-response models relate the external exposure of a substance to the dose in the target tissue, and then relate the target tissue dose to production of adv...
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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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PRODUCT TOXICITY AND COMETABOLIC COMPETITIVE INHIBITION MODELING OF CHLOROFORM AND TRICHLOROETHYLENE BY METHANOTROPHIC RESTING CELLS. (R825689C041) |
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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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PRODUCTION OF CHLORINE ATOMS FROM THE REACTION OF OH WITH CHLORINATED HYDROCARBONS |
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Measurements from previous studies have shown that when hydroxyl radicals react with various chlorinated hydrocarbons under atmospheric conditions, free chlorine atoms can be produ...
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QUANTIFICATION OF PRODUCTS FROM ELECTROCHEMICAL DECHLORINATION OF TRICHLOROETHYLENE USING GRANULAR-GRAPHITE ELECTRODES |
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Electrochemical dechlorination of Trichloroethylene (TCE) in aqueous phase was studied using graphite as a cathode in a packed bed reactor in a closed system. TCE contaminated matr...
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RATE OF TCE DEGRADATION IN PASSIVE REACTIVE BARRIERS CONSTRUCTED WITH PLANT MULCH (BIOWALLS) |
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This presentation reviews a case study at Altus AFB on the extent of treatment of TCE in a passive reactive barrier constructed with plant mulch. It presents data from a tracer te...
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RECONSTRUCTING EXPOSURE SCENARIOS USING DOSE BIOMARKERS - AN APPLICATION OF BAYESIAN UNCERTAINTY ANALYSIS |
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We use Bayesian uncertainty analysis to explore how to estimate pollutant exposures from biomarker concentrations. The growing number of national databases with exposure data ma...
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RECONSTRUCTING POPULATION EXPOSURES FROM DOSE BIOMARKERS: INHALATION OF TRICHLOROETHYLENE (TCE) AS A CASE STUDY |
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Physiologically based pharmacokinetic (PBPK) modeling is a well-established toxicological tool designed to relate exposure to a target tissue dose. The emergence of federal and sta...
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RECOVERY OF PRINCIPAL ORGANIC HAZARDOUS CONSTITUENTS AND PRODUCTS OF INCOMPLETE COMBUSTION FROM A VOLATILE ORGANIC SAMPLING TRAIN |
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The report describes an investigation of the recovery efficiencies of selected principal organic hazardous constituents (POHCs) from the Volatile Organic Sampling Train (VOST) unde...
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REDUCTIVE DECHLORINATION OF TRICHLORETHYLENE IN ANOXIC AQUIFER MATERIAL FROM PICATINNY ARSENAL, NEW JERSEY |
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Ground water at Picatinny Arsenal, New Jersey, has been contaminated with chlorinated solvents released from the wastewater treatment systems of a metal plating shop and overflow f...
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RELATIONSHIP BETWEEN DEHALOCOCCOIDES DNA IN GROUND WATER AND RATES OF REDUCTIVE DECHLORINATION AT FIELD SCALE |
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Certain strains of Dehalococcodies bacteria can dechlorinate chlorinated ethylenes to harmless products. This study was conducted to determine if there is a valid association betwe...
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REMEDIATION FLUID RECYCLING - APPLICATION OF PERVAPORATION TECHNOLOGY TO MATERIAL RECOVERY AND REUSE |
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In an effort to aggressively remove NAPL source areas, agents such as surfactants and alcohols have been added to in situ flusing systems to enhance the solubility of the NAPL comp...
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REMEDIATION FLUID RECYCLING - APPLICATION OF PERVAPORATION TECHNOLOGY TO MATERIAL RECOVERY AND REUSEI |
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In an effort to aggressively remove NAPL source areas, agents such as surfactants and alcohols have been added to in situ flusing systems to enhance the solubility of the NAPL comp...
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REMEDIATION OF SITES CONTAMINATED WITH TCE |
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Widespread use of trichloroethylene (TCE) in the U.S. has resulted in its frequent detection in soil and groundwater. CE can become a health hazard after being processed in the hum...
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REMEDIATION OF TCE-CONTAMINATED GROUNDWATER BY A PERMEABLE REACTIVE BARRIER FILLED WITH PLANT MULCH (BIOWALL) |
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A pilot-scale permeable reactive barrier filled with plant mulch was installed at Altus Air Force Base (in Oklahoma, USA) to treat trichloroethylene (TCE) contamination in ground w...
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REMOVAL OF CHLORINATED ALKENE SOLVENTS FROM DRINKING WATER BY VARIOUS REVERSE OSMOSIS MEMBRANES |
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Historically, membranes have been used to desalinate water. As new membrane materials are developed, traditional water treatment schemes may incorporate membrane technologies, suc...
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REMOVAL OF ORGANIC CONTAMINANTS |
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This research program was performed with the overall objectives of obtaining relevant design parameters and capital and operating costs of both adsorption and various aeration tech...
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REMOVAL OF ORGANIC CONTAMINANTS FROM DRINKING WATER SUPPLY AT GLEN COVE, NEW YORK, PHASE II |
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This research program was initiated with the overall objective of obtaining relevant design parameters and capital and operating costs of both adsorption and aeration techniques fo...
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REMOVAL OF ORGANIC CONTAMINANTS FROM DRINKING WATER SUPPLY AT GLEN COVE, NEW YORK. PHASE I |
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This research program was initiated with the overall objective of obtaining relevant design parameters and capital and operating costs of both adsorption and aeration techniques fo...
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REMOVAL OF ZINC AND TRICHLOROETHYLENE FROM WATER BY COLUMN EXTRACTION WITH A CRUDE HUMIC ACID. (R828158) |
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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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REPEATED INHALATION OF TOLUENE BY RATS PERFORMING A SIGNAL DETECTION TASK LEADS TO BEHVIORAL TOLERANCE ON SOME PERFORMANCE MEASURES. |
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Previous work showed that trichloroethylene (TCE) impairs sustained attention as evidenced by a reduction in accuracy and elevation of response latencies in rats trained to perform...
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REPLACING SOLVENT CLEANING WITH AQUEOUS CLEANING |
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The report documents actions taken by Robert Bosch Corp., Charleston, SC, in replacing the cleaning solvents 1, 1, 2- trichloro-1, 2, 2-trifluoroethane (CFC-113) and trichloroethyl...
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REQUIREMENT OF DNA REPAIR MECHANISMS FOR SURVIVAL OF BURKHOLDERIA CEPACIA G4 UPON DEGRADATION OF TRICHLOROETHYLENE. (R828772) |
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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 EPA FUNDED RESEARCH PROGRAMS ON THE IMPORTANCE OF PURGE VOLUME, SAMPLE VOLUME, SAMPLE FLOW RATE AND TEMPORAL VARIATIONS ON SOIL GAS CONCENTRATIONS |
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Two research studies funded and overseen by EPA have been conducted since October 2006 on soil gas sampling methods and variations in shallow soil gas concentrations with the purpo...
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ROUTE-DEPENDENT EFFECTS OF TOLUENE ON SIGNAL DETECTION BEHAVIOR IN RATS. |
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The acute effects of toluene and other solvents on behavior are thought to depend upon their concentration in the brain. We have shown previously that inhaled toluene and trichloro...
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ROY F. WESTON, INC. AND IEG TECHNOLOGIES CORPORATION UNTERDRUCK-VERDAMPFER-BRUNNEN (UVB) TECHNOLOGY; INNOVATIVE TECHNOLOGY EVALUATION REPORT |
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This report summarizes the findings of an evaluation of the Unterdruck-Verdampfer-Brunnen (UVB) technology developed by IEG Technologies and demonstrated in association with Roy F....
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SAFE DRINKING WATER ACT COST IMPACTS ON SELECTED WATER SYSTEMS |
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Detailed site visits were made to eight U.S. water utilities to assess the capital and O and M costs of meeting the requirements of the Safe Drinking Water Act (SDWA). New treatmen...
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SAMPLING TUBING EFFECTS ON GROUNDWATER SAMPLES |
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Volatile organic compounds pose a challenge to groundwater sampling protocols, since they can be lost as a water sample degasses or lost due to sorption on tubing or pump materials...
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SELECTION OF A PSEUDOMONAS CEPACIA STRAIN CONSTITUTIVE FOR THE DEGRADATION OF TRICHLOROETHYLENE |
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Tn5 insertion mutants of pseudomonas cepacia G4 were produced and were unable to degrade trichloroethylene (TCE), toluene, or phenol or to transform m-trifluoromethyl phenol (TEMP)...
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SEPARATION OF VOLATILE ORGANIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY PERVAPORATION USING S-B-S BLOCK COPOLYMER MEMBRANES |
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Composite membranes of a block copolymer of styrene and butadiene (S-B-S) were cast on highly porous, hydrophobic thin films of PTFE and used for the separation and recovery of vol...
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SIMULATION MODELING OF GASTROINTESTINAL ABSORPTION |
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Mathematical dosimetry models incorporate mechanistic determinants of chemical disposition in a living organism to describe relationships between exposure concentration and the i...
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SITE EMERGING TECHNOLOGY SUMMARY: INTEGRATION OF PHOTOCATALYTIC OXIDATION WITH AIR STRIPPING OF CONTAMINATED AQUIFERS |
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In a recently completed test program, bench-scale laboratory studies at Arizona State University (ASU) in Tempe, AZ, and pilot-scale studies in a simulated field test situation at ...
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SOLVENT-INDUCED OTOTOXICITY IN RATS: AN ATYPICAL SELECTIVE MID-FREQUENCY HEARING DEFICIT |
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Most previous reports of ototoxicity following exposure to a variety of volatile organic solvents have restricted testing to the low- and mid-frequencies of the hearing range in th...
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SORPTION OF CARBON TETRACHLORIDE, ETHYLENE DIBROMIDE AND TRICHLOROETHYLENE ON SOIL AND CLAY |
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The sorption of carbon tetrachloride, ethylene dibromide, and trichloroethylene in two silty clay loam soils and aluminium Al(+3) or calcium Ca(+2) saturated montmorillonite clay w...
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SORPTION OF TRICHLOROETHYLENE ONTO A ZEOLITE, ACCOMPANIED BY METHANOTROPHIC BIOTRANSFORMATION. (R825689C041) |
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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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SPATIAL AND SOURCE TYPE DISTRIBUTION OF EMISSIONS OF SELECTED TOXIC VOLATILE ORGANIC COMPOUNDS IN THE UNITED STATES IN 1990 |
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The annual anthropogenic emission, principal contributing source types, and spatial distributions for selected toxic volatile organic compounds (VOCS) are presented for the United ...
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SPERMATID MICRONUCLEUS ANALYSES OF TRICHLOROETHYLENE AND CHLORAL HYDRATE EFFECTS IN MICE |
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Mice were exposed by inhalation to trichloroethylene (TCE), or by i.p. injection to the TCE metabolite, chloral hydrate (CH). arly spermatids were analyzed for micronucleus (MN) fr...
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STABILITY OF PARTS-PER-BILLION HAZARDOUS ORGANIC CYLINDER GASES AND PERFORMANCE AUDIT RESULTS OF SOURCE TEST AND AMBIENT AIR MEASUREMENT SYSTEMS. STATUS REPORT 1 |
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A repository of 14 gaseous organic compounds at parts-per-billion (ppb) levels in compressed gas cylinders has been established by the U.S. Environmental Protection Agency (EPA). T...
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STABILITY OF PARTS-PER-BILLION HAZARDOUS ORGANIC CYLINDER GASES AND PERFORMANCE AUDIT RESULTS OF SOURCE TEST AND AMBIENT AIR MEASUREMENT SYSTEMS. STATUS REPORT 2 |
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A repository of 22 gaseous organic compounds at parts-per-billion (ppb) levels in compressed gas cylinders has been established by the U.S. Environmental Protection Agency (EPA). T...
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STABILITY OF PPB HAZARDOUS ORGANIC CYLINDER GASES AND PERFORMANCE AUDIT RESULTS OF SOURCE TEST AND AMBIENT AIR MEASUREMENT SYSTEMS--STATUS REPORT #5 |
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An evaluation of 29 gaseous organic compounds at PPB levels incompressed gas cylinders was conducted by the U.S. Environmental Protection Agency (EPA). Primary objectives of this o...
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STATUS ASSESSMENT OF TOXIC CHEMICALS: TRICHLOROETHYLENE |
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The production processes, uses, and properties of trichloroethylene are revealed in this report. The sources and amounts of trichloroethylene pollution are identified as well as th...
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STRATEGIES FOR THE AEROBIC CO-METABOLISM OF CHLORINATED SOLVENTS. (R825689C019) |
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AbstractRecent field and laboratory studies have evaluated the potential for aerobic co-metabolism of chlorinated solvents. Different co-metabolic substrates and differ...
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SURFACTANT-ENHANCED SOLUBILIZATION OF TETRACHLOROETHYLENE AND DEGRADATION PRODUCTS IN PUMP AND TREAT REMEDIATION |
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Experiments were conducted to investigate the enhanced solubilization of tetrachloroethylene (PCE), trichloroethylene (TCE), and 1,2-dichloroethylene (DCE) in nonionic surfactant s...
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SYMPOSIUM ON NEW SCIENTIFIC RESEARCH RELATED TO THE HEALTH EFFECTS OF TRICHLOROETHYLENE |
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On February 26-27th, 2004, the National Center for Environmental Assessment (NCEA), a part of the U.S. Environmental Protection Agency's (EPA) Office of Research and Development, h...
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TARGET ORGAN TOXICOLOGY OF HALOCARBONS COMMONLY FOUND CONTAMINATING DRINKING WATER |
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Some of the most frequent drinking water contaminants are organic halocarbons. The paper will initially summarize the target organ effects of three halocarbons: 1,2-dichloroethane,...
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TCE REMOVAL FROM CONTAMINATED SOIL AND GROUND WATER |
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Widespread use of trichloroethylene (TEE) in the U.S. has resulted in its frequent detection in soil and groundwater. EE can become a health hazard after being processed in the hum...
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TECHNOLOGY EVALUATION REPORT SITE PROGRAM DEMONSTRATION TEST, TERRA VAC IN SITU VACUUM EXTRACTION SYSTEM, GROVELAND MASSACHUSETTS |
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An evaluation was made of the performance of Terra Vac Inc.'s vacuum extraction systerl during a 56-day demonstration test run at Valley Manufactured Product Conpany's site in Grov...
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TECHNOLOGY EVALUATION REPORT: SITE PROGRAM DEMONSTRATION TEST, TERRA VAC IN SITU VACUUM EXTRACTION SYSTEM, GROVELAND, MASSSACHUSETTS (VOLUME II) |
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An evaluation was made of the performance of Terra Vac Inc.'s vacuum extraction system during a 56-day demonstration test run at Valley Manufactured Product Conpany's site in Grove...
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THE APPLICATION OF PRB TECHNOLOGY AT TWO SITES: LESSONS LEARNED AFTER 7 YEARS OF PERFORMANCE MONITORING |
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In June of 1996, a 46 m long, 7.3 m deep, and 0.6 m wide permeable reactive barrier (continuous wall configuration) of zero-valent iron was installed at the USCG-SC site. The reac...
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THE ECOLOGICAL EFFECTS OF TRICHLORACETIC ACID (TCAA) IN THE ENVIRONMENT |
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Trichloroacetic acid (TCAA) is a member of the family of compounds known as chloroacetic acids, which includes mono-, di- and trichloroacetic acid. The significant property these ...
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THE EFFECT OF UNCERTAINTY FACTOR PLACEMENT IN A PHYSIOLOGICALLY-BASED PHARMACOKINETIC (PBPK) MODEL OF TRICHLOROETHYLENE (TCE) FOR ACUTE EXPOSURE GUIDELINE LEVELS (AEGL). |
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PBPK models may be used in risk assessment to reduce uncertainties associated with dosimetry; however, other considerations may still lead to incorporation of uncertainty factors (...
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THE EFFECT OF VOLTAGE ON ELECTROCHEMICAL DEGRADATION OF TRICHLOROETHYLENE |
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This study investigates electrochemical degradation of Trichloroethylene (TCE) using granular graphite as electrodes in a flow-through reactor system. The experiments were conducte...
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THE EFFECT OF VOLTAGE ON ELECTROCHEMICAL DEGRADATION OF TRICHLOROETHYLENE |
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This study investigates electrochemical degradation of Trichloroethylene (TCE) using granular graphite as electrodes in a flow-through reactor system. The experiments were conducte...
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THEORETICAL STUDY OF THE SNV REACTION OF TRICHLOROETHYLENE (TCE) AND CH3S- AS A MODEL FOR GLUTATHIONE CONJUGATION OF TCE |
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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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TIME COURSE OF TOLERANCE TO REPEATED INHALATION OF TRICHLOROETHYLENE (TCE) 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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TIME COURSE OF TOLERANCE TO REPEATED INHALATION OF TRICHLOROETHYLENE (TCE) 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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TOXICITY AND METABOLISM STUDIES WITH EPA (ENVIRONMENTAL PROTECTION AGENCY) PRIORITY POLLUTANTS AND RELATED CHEMICALS IN FRESHWATER ORGANISMS |
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Twenty-two chemicals from the EPA priority pollutant list were studied for their acute and/or chronic toxicity to selected freshwater organisms. Freshwater species tested included ...
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TOXICOLOGICAL DATA ON SELECTED HAZARDOUS CHEMICALS AND POSSIBLE EXTRAPOLATION TO MAN |
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The experimental evidence that chemicals commonly found in drinking water possess carcinogenic properties is reviewed. Three types of sources for chemicals in drinking water are ex...
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TRACE CHEMICAL IN THE 'CLEAN' TROPOSPHERE |
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Atmospheric measurements at Point Arena, California (39 N) are used to assess the burden as well as the growth rates of a large number of important atmospheric trace chemicals. In ...
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TRACKING THE RESPONSE OF BURKHOLDERIA CEPACIA G4 5223-PR1 IN AQUIFER MICROCOSMS |
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The introduction of bacteria into the environment for bioremediation purposes (bioaugmentation) requires analysis and monitoring of microbial population dynamics to define persiste...
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TRANSPORT OF TRICHLOROETHYLENE (TCE) IN NATURAL SOIL BY ELECTROOSMOSIS |
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Contamination in low permeability soils poses a significant technical challenge to in-situ remediation, primarily due to low mobilization of the contaminants and difficulty in unif...
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TRAPPING AND IDENTIFICATION OF THE DICHLOROACETATE RADICAL FROM THE REDUCTIVE DEHALOGENATION OF TRICHLOROACETATE BY MOUSE AND RAT LIVER MICROSOMES. (R825954) |
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A key question in the risk assessment of trichloroethylene (TRI) is the extent to which its carcinogenic effects might depend on the formation of dichloroacetate (DCA) as a meta...
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TREATMENT FOR THE CONTROL OF ORGANIC CHEMICAL CONTAMINATION OF DRINKING WATER: COST AND PERFORMANCE |
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There is growing concern over the quality of the nations ground water resources. Instances of ground water contamination from organic chemicals have created a need to identify alte...
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TREATMENT OF DRINKING WATER CONTAINING TRICHLOROETHYLENE AND RELATED INDUSTRIAL SOLVENTS |
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Volatile chlorinated and non-chlorinated compounds occur in both untreated and treated drinking water. Because volatilization is restricted, ground waters rather than surface water...
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TREATMENT OF PAHS AND PCBS USING SULFATE RADICAL-BASED OXIDATION PROCESSES |
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Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in aquatic systems pose serious threat to public health due to their toxicity and potential carcinogeni...
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TREATOGENIC ACTIVITY OF TRICHOLORACETIC ACID IN THE RATE |
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Trichloroacetic acid (TCA) is a by-product of the chlorine disinfection of water containing natural organic material. t is detectable in finished drinking water at levels comparabl...
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TRICHLOROACETATE TISSUE DOSIMETRY AND PPARA-MEDIATED LIVER CANCER INDUCTION BY TRICHLOROETHYLENE AND PERCHLOROETHYLENE |
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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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TRICHLOROETHYLENE (TCE) HEALTH RISK ASSESSMENT: OVERVIEW |
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ORDs National Center for Environmental Assessment is preparing a human health risk assessment on trichloroethylene (TCE). TCE is a solvent that has been widely used for vapor degr...
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TRICHLOROETHYLENE (TCE) ISSUE PAPERS |
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These issue papers are a part of EPA's effort to develop a trichloroethylene (TCE) human health risk assessment. These issue papers were developed by EPA to provide scientific and...
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TRICHLOROETHYLENE (TCE)-INDUCED PREGNANCY LOSS IN F344 RATS, AND PARTIAL RESCUE BY HUMAN CHORIONIC GONADOTROPHIN (HCG) |
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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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TRICHLOROETHYLENE ACCELERATES AN AUTOIMMUNE RESPONSE IN ASSOCIATION WITH TH1 T-CELL ACTIVATION IN MRL+/+ MICE. (R826409) |
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AbstractTrichloroethylene (1,1,2-trichloroethene) is a major environmental contaminant. There is increasing evidence relating exposure to trichloroethylene with autoimm...
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TRICHLOROETHYLENE ACTIVATES CD4+ T CELLS: POTENTIAL ROLE IN AN AUTOIMMUNE RESPONSE. (R826409) |
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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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TRICHLOROETHYLENE ADSORPTION BY ACTIVATED CARBON PRELOADED WITH HUMIC SUBSTANCES: EFFECTS OF SOLUTION CHEMISTRY. (R828157) |
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AbstractTrichloroethylene (TCE) adsorption by activated carbon previously loaded ("preloaded") with humic substances was found to decrease with increasing conce...
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TRICHLOROETHYLENE ADSORPTION BY FIBROUS AND GRANULAR ACTIVATED CARBONS: AQUEOUS PHASE, GAS PHASE AND WATER VAPOR ADSORPTION STUDIES. (R828157) |
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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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TRICHLOROETHYLENE CONCENTRATION EFFECTS ON PILOT FIELD SCALE IN-SITU GROUNDWATER BIOREMEDIATION BY PHENOL-OXIDIZING MICROORGANISMS. (R825689C066) |
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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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TRICHLOROETHYLENE DEGRADATION BY TOLUENE-OXIDIZING BACTERIA GROWN ON NON-AROMATIC SUBSTRATES. (R828772) |
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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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TRICHLOROETHYLENE HEALTH RISK ASSESSMENT: SYNTHESIS AND CHARACTERIZATION (EXTERNAL REVIEW DRAFT) |
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This assessment presents EPA's most current evaluation of the potential health risks from exposure to trichloroethylene (TCE). TCE exposure is associated with several adverse healt...
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TRICHLOROETHYLENE IHIBITS VOLTAGE-SENSITIVE CALCIUM CURRENTS IN DIFFERENTIATED PC 12 CELLS. |
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ABSTRACT BODY: It has been demonstrated recently that volatile organic compounds (VOCs)such as toluene, perchloroethylene and trichloroethylene inhibit function of voltage-sensitiv...
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TRICHLOROETHYLENE METABOLISM BY MICROORGANISMS THAT DEGRADE AROMATIC COMPOUNDS |
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Trichloroethylene (TCE) was metabolized by the natural microflora of three different environmental water samples when stimulated by the addition of either toluene or phenol. Two di...
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TRICHLOROETHYLENE REMOVAL FROM GROUNDWATER IN FLOW-THROUGH COLUMNS SIMULATING A PERMEABLE REACTIVE BARRIER CONSTRUCTED WITH PLANT MULCH |
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Ground water contaminated with TCE is commonly treated with a passive reactive barrier (PRB) constructed with zero-valence iron. The cost of iron as the reactive matrix has driven...
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Technology Demonstration Summary: Terra Vac In Situ Vacuum Extraction System, Groveland, Massachusetts |
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Terra Vac Inc's vacuum extraction system was demonstrated at the
Valley Manufactured Products Company, Inc., site in Groveland,
Massachusetts. The property is part of the Grove...
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U.S.-MEXICO BORDER PROGRAM ARIZONA BORDER STUDY--STANDARD OPERATING PROCEDURE FOR USE OF A PASSIVE SAMPLING DEVICE FOR THE COLLECTION OF AIRBORNE VOCS AT FIXED INDOOR AND OUTDOOR SITES (UA-F-12.1) |
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The purpose of this SOP is to describe the methods used to sample residential indoor and outdoor atmospheres for the presence of certain volatile organic compounds (VOCs) by means ...
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ULTRASOUND PRETREATMENT OF ELEMENTAL IRON: KINETIC STUDIES OF DEHALOGENATION REACTION ENHANCEMENT AND SURFACE EFFECTS. (R828598C743) |
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This work presents data showing the kinetic improvement afforded by ultrasound pretreatment and illustrates the physical and chemical changes that take place at the iron surface...
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UNCERTAINTY ANALYSIS OF TCE USING THE DOSE EXPOSURE ESTIMATING MODEL (DEEM) IN ACSL |
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The ACSL-based Dose Exposure Estimating Model(DEEM) under development by EPA is used to perform art uncertainty analysis of a physiologically based pharmacokinetic (PSPK) model o...
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UNDER WHAT CONDITIONS IS TRICHLOROETHYLENE LIKELY TO BE A CARCINOGEN IN HUMANS? |
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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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UNDERSTANDING THE DIVERSITY OF TRICHLOROETHYLENE CO-OXIDATIONS. (R825689C009) |
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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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UPTAKE OF TRICHLOROETHYLENE BY HYBRID POPLAR TREES GROWN HYDROPONICALLY IN FLOW-THROUGH PLANT GROWTH CHAMBERS. (R825549C006) |
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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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USE OF CARBON STABLE ISOTOPE FOR THE DECHLORINATION OF TRICHLOROETHYLENE ON GRANULAR-GRAPHITE PACKED ELECTRODES (PRESENTATION) |
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Trichloroethylene (TCE) is widely used as a solvent in metal processing and electronic manufacturing industries, but waste and spilled TCE often results in blocks of non-aqueous li...
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USE OF CARBON STABLE ISOTOPE TO INVESTIGATE CHLOROMETHANE FORMATION IN THE ELECTROLYTIC DECHLORINATION OF TRICHLOROETHYLENE |
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Carbon stable isotope trichloroethylene (13C TCE) was used to investigate the formation of chloromethane (CM) during the electrolytic dechlorination of trichloroethylene...
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USE OF GRANULAR GRAPHITE FOR ELECTROLYTIC DECHLORINATION OF TRICHLOROETHYLENE |
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Granular graphite is a potential electrode material for the electrochemical remediation of refractory chlorinated organic compounds such as trichloroethylene (TCE). However, the us...
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USE OF LETHALITY DATA DURING CATEGORICAL REGRESSION MODELING OF ACUTE REFERENCE EXPOSURES |
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Categorical regression is being considered by the U.S. EPA as an additional tool for derivation of acute reference exposures (AREs) to be used for human health risk assessment for ...
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USE OF PRETREATMENT ZONES AND ZERO-VALENT IRON FOR THE REMEDIATION OF CHLOROALKENES IN AN OXIC AQUIFER |
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Pre-treatment zones (PTZs) composed of sand, 10% zero-valent iron [Fe(0)]/sand, and 10% pyrite (FeS2)/sand were examined for their ability to prolong Fe(0) reactivity in abovegroun...
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USE OF SONOCHEMISTRY IN MONITORING CHLORINATED HYDROCARBONS IN WATER |
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The U.S. Environmental Protection Agency (EPA) has been examining the potential of combining sonication with available measurement technologies for monitoring chlorinated hydrocarb...
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USING ZERO-VALENT METAL NANOPARTICLES TO REMEDIATE ORGANIC CONTAMINANTS |
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The transport of organic contaminants down the soil profile constitutes a serious threat to the quality of ground water. Zero-valent metals are considered innocuous abiotic agen...
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VALIDATION OF CHEMICAL AND BIOLOGICAL TECHNIQUES FOR EVALUATION OF VAPORS IN AMBIENT AIR/MUTAGENICITY TESTING OF TWELVE (12) VAPOR-PHASE COMPOUNDS |
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The overall objective of this research was to further validate Ames mutagenicity preincubation system for detection of vapors in ambient air. Parametes for detection of vapors in t...
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VAPOR PHASE TREATMENT OF PCE IN A SOIL COLUMN BY LAB-SCALE ANAEROBIC BIOVENTING |
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Microbial destruction of highly chlorinated organic compounds must be initiated by anaerobic followed by aerobic dechlorination. In-situ dechlorination of vadose zone soil contamin...
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VIBRATING PERVAPORATION MODULES: EFFECT OF MODULE DESIGN ON PERFORMANCE |
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A third commercial-scale vibrating pervaporation membrane module was fabricated and evaluated for the separation of volatile organic compounds (VOCs) from aqueous solutions. Exper...
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VISUALIZATION-BASED ANALYSIS FOR A MIXED-INHIBITION BINARY PBPK MODEL: DETERMINATION OF INHIBITION MECHANISM |
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A physiologically-based pharmacokinetic (PBPK) model incorporating mixed enzyme inhibition was used to determine the mechanism of metabolic interactions occurring during simultaneo...
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VISUALIZATION-BASED ANALYSIS FOR A MIXED-INHIBITION BINARY PBPK MODEL: DETERMINATION OF INHIBITION MECHANISM |
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A physiologically-based pharmacokinetic (PBPK) model incorporating mixed enzyme inhibition was used to determine mechanism of the metabolic interactions occurring during simultan...
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VOCS (VOLATILE ORGANIC CHEMICALS) IN DRINKING WATER: COST OF REMOVAL |
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There is growing concern over the quality of the nations groundwater resources. Instances of ground water contamination from organic chemicals have been reported in virtually all s...
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VOLATILE ORGANIC CHEMICALS IN 10 PUBLIC-ACCESS BUILDINGS |
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The U.S. EPA carried out studies of indoor air quality in 10 buildings. Qualitative analysis identified over 200 aromatics, halogens, esters, alcohols, phenols, ethers, ketones, al...
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VOLATILE ORGANIC COMPOUNDS IN INDOOR AIR: A SURVEY OF VARIOUS STRUCTURES |
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Co-workers collected indoor air samples in their homes in SUMMA polished canisters. Upon receipt in the laboratory, the whole air samples were analyzed for volatile organic compoun...
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VOLATILE ORGANIC COMPOUNDS INHIBIT HUMAN AND RAT NEURONAL NICOTINIC ACETYLCHOLINE RECEPTORS EXPRESSED IN XENOPUS OOCYTES. |
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This manuscript provides evidence to indicate that rats and humans are equally sensitive at the pharmacodynamic level to effects of volatile organic compounds.
? This manus...
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WHY DO THE ACUTE BEHAVIORAL EFFECTS OT TOLUENE IN RATS DEPEND ON THE ROUTE OF EXPOSURE? |
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Despite evidence suggesting that the acute effects of organic solvents are related to their concentration in the brain, we have observed route-dependent differences in the acute be...
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XPERT DESIGN AND DIAGNOSTICS' (XDD) IN-SITU CHEMICAL OXIDATION PROCESS USING POTASSIUM PERMANGANATE (KMNO4) |
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Xpert Design and Diagnostic's (XDD)potassium permanganate in situ chemical oxidation (ISCO) process was evaluated under the EPA Superfund Innovative Technology Evaluation (SITE) Pr...
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ZENON ENVIRONMENTAL, INC.; CROSS-FLOW PERVAPORATION TECHNOLOGY; INNOVATIVE TECHNOLOGY EVALUATION REPORT (EPA/540/R-95/511) |
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A demonstration of the Zenon cross-flow pervaporation technology was conducted under the Superfund Innovative Technology Evaluation (SITE) program in February 1995 to determine the...
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