Search Results for the EPA National Library Catalog

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Occurrence of Barium in Drinking Water, Food and Air. 1984
Occurrence of Benzene in Drinking Water, Food and Air. 1983
Occurrence of carbon tetrachloride in drinking water, food and air / 1983
Occurrence of Chlorobenzene in Drinking Water, Food and Air. 1983
Occurrence of Dichlorobenzene in Drinking Water, Food and Air. 1982
Occurrence of Mercury in Drinking Water, Food and Air. 1984
Occurrence of Nitrate in Drinking Water, Food and Air. 1985
Occurrence of Tetrachloroethylene (Perchloroethylene) in Drinking Water, Food and Air. 1982
Occurrence of Trichloroethylene in Drinking Water, Food and Air. 1982
Occurrence of Vinyl Chloride in Drinking Water, Food and Air. 1982
Oil and Hazardous Materials Technical Assistance Data System, (OHM-TADS) Fields and Their Definitions. Users' Guide. 1992
Oil and Hazardous Materials, Technical Assistance Data System (OHM-TADS) (for Microcomputers). 1990
Oral toxicology studies with xylene isomers and mixed xylenes / 1988
Oregon, USA, ecological regions and subregions for water quality management / 1991
Overview of Case Studies on Recovery of Aquatic Systems from Disturbance. 1990
Overview of Phytoplankton Contaminant Problems. 1982
Overview of the health effects of selected munitions chemicals 1993
Overview of USEPA/Clear Lake Erie Sediment Oxygen Demand Investigations during 1979. 1987
Oxydemeton-Methyl PD-1: Initiation of Special Review. 1987
Oxyfuels information needs. 1996
Ozonation and biological stability of water in an operating water treatment plant. / 1990
Ozone Uptake in Awake Sprague-Dawley Rats. 1987
PANs in the Atmosphere. 1993
Partitioning of Polychlorinated Biphenyl Congeners in the Seawater of New Bedford Harbor, Massachusetts. 1993
PCBs : cancer dose-response assessment and application to environmental mixtures. 1996
PCBs : cancer dose-response assessment and application to environmental mixtures. 1996
Peer review workshop report on ecological risk assessment issue papers. 1994
Peer review, standards for the disposal of sewage sludge, U.S. EPA proposed rule 40 CFR parts 257 and 503 (February 6, 1989 Federal Register pp. 5746-5902) / 1989
Perspectives on the Concern for and Management of Prenatal Chemical Exposure and Postnatal Effects. 1990
Pesticide assessment guidelines : subdivision F : hazard evaluation : human and domestic animals : Series 85-3 Dermal Absorption of Pesticides 1994
Pesticide Assessment Guidelines: Subdivisions N, E, and K. Data Reporting Guideline for Environmental Chemistry Methods. 1995
Pesticide fact sheet : cydia pomonella granulosis virus. 2000
Pesticide registration (PR) notice 2000-2 : notice to manufacturers, producers, formulators and registrants of pesticide products. 2000
Photo-Oxidation of Automobile Emissions: Measurements of the Transformation Products and Their Mutagenic Activity. 1992
Physicochemical Factors Affecting Toxicity in Freshwater: Hardness, pH, and Temperature (Chapter 1). 1994
Pilot test of wetland condition indicators in the prairie pothole region of the United States / 1997
Pollutants of concern in Puget Sound 1991
Pollution Impacts at the Stand and Ecosystem Levels. 1992
Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans: Correlation between In vivo Structure-Activity Relationships (SARs). 1986
POTW's and water quality: in search of the big picture : appendices. 1988
Predicting Modes of Toxic Action from Chemical Structure: An Overview. 1994
Predicting subsurface contaminant transport and transformation : considerations for model selection and field validation / 1989
Prediction of Carboxyhemoglobin Formation Due to Transient Exposure to Carbon Monoxide. 1994
Prenatal alpha-Difluoromethylornithine Treatment: Effects on Postnatal Renal Growth and Function in the Rat. 1989
Principles of Developmental Toxicity Risk Assessment. 1995
Proceedings : U.S. Environmental Protection Agency's National Technical Workshop "PCBs in Fish Tissue" : May 10-11, 1993, Washington, DC. 1993
Proceedings of annual analytical symposium (7th) 1984
Proceedings of the Conference on MTBE and Other Oxygenates: A Research Update. Held in Falls Church, Virginia on July 26-28, 1993. 1995
Proceedings of the First National Workshop on Biological Criteria : held in Lincolnwood, Illinois, December 2-4, 1987 / 1988
Proceedings of the Kepone Seminar II / 1977
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