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United States Environmental Protection Agency
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Items Found: 5260
Showing: Items 151 - 200
Your Search: (SUBJECT=Concentration Composition)
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Acute Toxicities of Selected Heavy Metals to the Softshell Clam, 'Mya arenaria'.
Acute Toxicity and Behavioral Effects of Acrylates and Methacrylates to Juvenile Fathead Minnows (Journal Version).
Acute Toxicity and Bioconcentration of Endosulfan-Exposed Estuarine Animals.
Acute Toxicity and Sublethal Behavioral Effects of Copper on Barnacle Nauplii 'Balanus improvisus'.
Acute Toxicity of Ammonia and Nitrite to Cutthroat Trout Fry.
Acute Toxicity of Ammonia to Fathead Minnows.
Acute Toxicity of Kepone (Trademark) to Four Estuarine Animals.
Acute Toxicity of Organic Chemical Mixtures to the Fathead Minnow.
Acute Toxicity of Sediment from Eagle Harbor, Washington, to the Infaunal Amphipod 'Rhepoxynius abronius'.
Acute toxicity of selected organic compounds to fathead minnows /
Acute Toxicity of Ten Chlorinated Aliphatic Hydrocarbons to the Fathea Minnow (Pimephales promelas).
Acute Toxicity of Tetrachloroethylene and Tetrachloroethylene with Dimethylformamide to Rainbow Trout (Salmo gairdneri).
Acute Toxicity of Thiocyanate to Trout.
Adaptation of Gaussian plume model to incorporate multiple station data input.
Adaptation of Gaussian Plume Model to Incorporate Multiple Station Data Input. Volume II. Appendices.
Adaptation of Natural Microbial mmunities to Degradation of Xenobiotic Compounds: Effects of Concentration, Exposure Time, Inoculum, and Chemical Structure.
Adaptation of the Advanced Statistical Trajectory Regional Air Pollution (ASTRAP) Model to the EPA VAX Computer: Modifications and Testing.
Adaptation of the Polychaete 'Neanthes arenaceodentata' to Copper.
Addendum to PTPLU -- a single source gaussian dispersion algorithm /
Addendum to the user's guide for MPTER /
Addendum to user's guide for climatological dispersion model /
Addendum to: 'Environmental Assessment: Source Test and Evaluation Report--Chapman Low-Btu Gasification'.
Addendum/supplemental information for Valley, Crster, Isc.
Addendum/supplemental information to the user's manual for single source (CRSTER) model.
Addendum/supplemental information to the Valley model.
Additional Note Regarding Measurement of the Exposure of Workers to Pesticides.
Adequacy of Sampling Trains and Analytical Procedures Used for Fluoride.
Adipic Acid Enhanced Flue Gas Desulfurization Process for Industrial Boilers. Volume 1. Field Test Results.
Adsorption of trace metals by hydrous ferric oxide in seawater /
Adsorption, movement, and biological degradation of large concentrations of selected pesticides in soils /
Advanced Emission Speciation Methodologies for the Auto/Oil Air Quality Improvement Research Program. 1. Hydrocarbons and Ethers.
Advanced Methodologies for Sampling and Analysis of Toxic Organic Chemicals in Ambient Outdoor, Indoor, and Personal Respiratory Air.
Advanced oil processing/utilization environmental engineering : EPA program status report /
Advances in Particle Sampling and Measurement.
Advances in Treatment of Domestic Wastes.
Aerial Photographic Tracing of Pulp Mill Effluent in Marine Waters.
Aerobic Metabolism of Trichloroethylene by a Bacterial Isolate.
Aerosol characteristics and visibility /
Aerosol characteristics and visibility /
Aerosol formation from gas phase reactions of ozone and olefin in the presence of sulfur dioxide /
Aerosol Generation to Simulate Specific Industrial Fine Particle Effluents.
Aerosol Research Branch annual report FY 1976/76A : Federal Interagency Energy/Environment Research and Development Program /
Aerosol research branch, annual report : FY 1976/76A /
Aerosol sampling and analysis : Phoenix, Arizona /
Aerosol source characterization study in Miami, Florida : trace element analysis /
Aerosol source characterization study in St. Louis : trace element analysis /
Age and growth of walleyes and saugers in the Tongue River Reservoir, Montana, 1975-77 /
Age Dependent Model of PCB in a Lake Michigan Food Chain.
Aggregation of Clay Minerals and Marine Microalgal cells: Physicochemical Theory and Implications for Controlling Harmful Algal Blooms.
AHERA clearance at twenty abatement sites /
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