Search Results for the EPA National Library Catalog

Items Found: 764
Showing: Items 151 - 200
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Select Item Title Year Published
Ecologic Impact of the Interactions Among Microorganisms and Aquatic Contaminents in Lake Erie, Phase I and Phase II. 1971
Ecologic Simulation for Aquatic Environments. 1972
Ecological condition of streams in the coast range ecoregion of Oregon and Washington 2000
Ecological Factors Influencing Production of Algae in Northern Prairie Lakes. 1972
Ecological Studies of the Surface Waters of the Whitewater Creek Watershed, Walworth, Rock and Jefferson Counties, Wisconsin. 1973
Ecological study of an acid pond in the New Jersey Coastal Plain. 1980
Ecology of running waters 2001
Ecology of the Second Trophic Level of Lakes Superior, Michigan, and Huron. 1970
Economic Analysis of Phosphorous Control and Other Aspects of R76-1. 1978
Effect of Dredging on the Nutrient Levels and Biological Populations of a Lake. 1972
Effect of Pesticide Residues and Other Organo-Toxicants on the Quality of Surface and Ground Water Resources. 1970
Effect of pumped-storage reservoir operation on biological productivity and water quality 1969
Effect of salt runoff from street deicing on a small lake / 1969
Effect of Silt and Silt Removal in a Prairie Lake. 1973
Effect of Spectral Composition on Photosynthesis in Turbid Reservoirs. Photosynthetic Production in a Turbid Reservoir II. Details of an Incubation Model and Comments on the Effect of Light Quality on Photosynthesis. 1972
Effect of wastewater land treatment on eutrophication in Muskegon lakes 1981
Effects of Age and Water Fluctuations on the Limnological Factors of Impounded Waters. 1971
Effects of Chemical Variations in Aquatic Environments. Volume I. Biota and Chemistry of Piceance Creek 1973
Effects of Decreased Nutrient Loading on the Limnology of Diamond Lake, Oregon. Appendix. 1979
Effects of Development on Salinity and Limnology of the Lower Colorado River. 1973
Effects of diversion and alum application on two eutrophic lakes / 1978
Effects of exhaust from two-cycle outboard engines. 1974
Effects of limnological factors on water treatment : completion report / 1971
Effects of Suspended Stilts and Clays on Self-Purification in Natural Waters: Protein Adsorption. 1972
Effects of the San Joaquin Master Drain on Water Quality of the San Francisco Bay and Delta. Appendix Part C. Nutrients and Biological Response. Central Pacific Basins Comprehensive Water Pollution Control Project. 1968
Effects of urbanization on the water quality of lakes in Eagan, Minnesota 1980
Engineering approaches for lake management / 1983
Environmental changes in Lake Erie and their future impact on lake resources / 1973
Environmental chemistry of lakes and reservoirs / 1994
Environmental Control of Nitrogen Fixation in Lakes: I. In situ Nitrogen Fixation by Free Living Blue-Green Algae. II. Nitrogen Fixation by the Duck-Weed-Algal Association. 1974
Environmental Monitoring and Assessment Program : Project descriptions / 1993
Environmental requirements of blue-green algae; proceedings of a symposium jointly sponsored by University of Washington and Federal Water Pollution Control Administration, Pacific Northwest Water Laboratory, September 23-24, 1966. 1967
Estuarine Ecosystems and High Temperatures. 1972
Estuarine modeling: an assessment : capabilities and limitations for resource management and pollution control / 1971
Eufaula Reservoir Aeration Research - 1968. 1968
Eutrophic lake : Lake Mendota, Wisconsin / 1985
Eutrophication as a Problem in the Finger Lakes. 1972
Eutrophication Model of the White River Basin above Beaver Reservoir in Northwest Arkansas. 1973
Eutrophication of Lakes. 1970
Eutrophication of Small Reservoirs in the Great Plains. 1972
Eutrophication of Small Reservoirs in the Great Plains. 1972
Eutrophication of surface waters - Lake Tahoe laboratory and pilot pond studies : second progress report / 1969
Eutrophication of Surface Waters - Lake Tahoe: Indian Creek Reservoir. 1970
Eutrophication of Surface Waters - Lake Tahoe: Laboratory and Pilot Pond Studies. 1969
Eutrophication of Surface Waters - Lake Tahoe: Pilot Pond and Field Studies. 1970
Eutrophication of surface waters : Lake Tahoe (Indian Creek Reservoir) : first progress report / 1970
Eutrophication of surface waters : Lake Tahoe Indian Creek Reservoir / 1971
Eutrophication potential of Payette Lake, Idaho 1997
Eutrophication Problems in Reservoirs. 1969
Evaluation of Environmental Alterations by Thermal Loading and Acid Pollution in the Cooling Reservoir of a Steam-Electric Station. 1970
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