Search Results for the EPA National Library Catalog

Items Found: 968
Showing: Items 401 - 450
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Effects of Pollution on Freshwater Fish. 1978
Effects of Pollution on Freshwater Fish. 1981
Effects of Pollution on Freshwater Organisms. 1987
Effects of Pollution on Freshwater Organisms. 1984
Effects of Pollution on Freshwater Organisms. 1985
Effects of Pollution on Freshwater Organisms. Fate and Effects of Pollutants. 1986
Effects of Pollution, Especially from Feedlots, on Fishes in the Upper Neosho River Basin. 1971
Effects of Pulp and Paper Mill Effluents on Growth and Production of Fish. Phases I and II. 1972
Effects of Saline Waters Upon Survival of Fish Eggs and Larvae and Upon the Ecology of the Fathead Minnow in North Dakota. 1972
Effects of Section 404 Permitting on Freshwater Wetlands in Louisiana, Alabama, and Mississippi. 1992
Effects of selected pollutants on grazer utilization of Aufwuchs / 1980
Effects of Siltation and Coarser Sediments on Distribution and Abundance of Stream-Inhabiting Insects. 1971
Effects of Sodium Pentachlorophenate on Survival and Energy Metabolism of Embryonic and Larval Steelhead Trout. 1978
Effects of suspended solids and sediment on reproduction and early life of warmwater fishes : a review / 1979
Effects of Temperature and Redox Conditions on Degradation of Chlorinated Phenols in Freshwater Sediments. 1988
Effects of temperature on hatching success and survival of larvae in the white bass / 1977
Effects of Temperature on Hatching Success and Survival of Larvae in the White Bass. 1978
Effects of Temperature, pH, Salinity, and Inorganic Nitrogen on the Rate of Ammonium Oxidation by Nitrifiers Isolated from Wetland Environments. 1980
Effects of Toxic Organics on Photosynthetic Reoxygenation. 1967
Effects of Waste Discharges from Radford Army Ammunition Plant on the Biota of the New River, Virginia. 1973
Effects of Waste Oil on the Survival and Reproduction of the American Flagfish, 'Jordanella floridae'. 1980
Effects of wastewater and cooling water chlorination on aquatic life / 1976
Endosulfan : ambient water quality criteria. 1978
Endrin : ambient water quality criteria. 1978
Endrin and Malathion Toxicity to Flagfish (Jordanella floridae). 1977
Energetics of Natural Populations of Freshwater Macroconsumers. Progress Report. 1971
Entrainment at a once-through cooling system on western Lake Erie / 1978
Environmental and Molecular Characterization of Systems Which Affect Genome Alteration in 'Pseudomonas aerugirosa'. Chapter 25. 1990
Environmental effects of oil shale mining and processing : part I, fishes of Piceance Creek, Colorado, prior to oil shale processing. / 1978
Environmental effects of Western coal combustion. 1978
Environmental Gradients in Northwest Freshwater Wetlands. 1986
Environmental pathways of selected chemicals in freshwater systems / 1977
Environmental pathways of selected chemicals in freshwater systems : Part II. Laboratory studies. / 1978
Environmental requirements and pollution tolerance of common freshwater chironoidae / 1977
Environmental requirements and pollution tolerance of Plecoptera / 1978
Environmental requirements and pollution tolerance of trichoptera / 1978
Environmental Significance of the Potential for 'mer' (Tn21)-Mediated Reduction of Hg (2+) to Hg in Natural Waters. 1989
Environmental trace materials : computer coupled radioactivation analysis / 1975
Enzyme and Tissue Alterations in Fishes: A Measure of Water Quality. 1973
EPA (Environmental Protection Agency) Initiates Wetlands Research in the Pacific Northwest. 1987
EPA method study 8, total mercury in water / 1977
EPA Region 10 Climate Change and TMDL Pilot. Project Research Plan. 2013
Epidemiological Studies of Otitis Externa: Report of a Prospective and of a Retrospective Study of Otitis Externa Among Swimmers. 1981
Episodic Acidification and Associated Fish and Benthic Invertebrate Responses of Four Adirondack Headwater Streams. Methods Report. 1993
Episodic Acidification of Freshwater Systems in Canada: Physical and Geochemical Processes. 1993
Establishment and growth of selected freshwater and coastal marsh plants in relation to characteristics of dredged sediments : final report / 1977
Estimating toxicity of industrial chemicals to aquatic organisms using structure activity relationships / 1988
Estimation of Bioconcentration in Marine Species Using Structure-Activity Models. 1985
Estimation of Toxicity to Marine Species with Structure-Activity Models Developed to Estimate Toxicity to Freshwater Fish. 1985
Ethylbenzene : ambient water quality criteria. 1978
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