Search Results for the EPA National Library Catalog

Items Found: 2243
Showing: Items 1801 - 1850
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Select Item Title Year Published
Recovery of Stream Macrobenthic Communities from the Effects of Acid Mine Drainage. 1973
Recovery of the Macrobenthos at a Dredge Site in Yaquina Bay, Oregon. 1980
Recreational Water Quality and Health. 1981
Reduction of Estuarine Nutrient Loading: Nitrogen and Phosphorus Removal in Coastal Swamp Streams. 1991
Reduction of Toxicity to Aquatic Organisms by Industrial Wastewater Treatment. 1981
Reductive Dechlorination of Trichloroethylene in Anoxic Aquifer Material from Picatinny Arsenal, New Jersey. 1991
Regional BEACH program conferences, 1999 : proceedings. 2000
Regional Patterns in Three Biological Indicators of Stream Condition in Ohio. 1991
Regional planning and the Chesapeake Bay environment : an ecological approach / 1970
Regulatory applications of sediment criteria : final report / 1987
Relationship between the Metabolism of Haloacetonitriles and Chloroform and Their Carcinogenic Activity. 1984
Relationships of Activities of Metal-Ligand Species to Aquatic Toxicity. 1978
Relative atmospheric loadings of toxic contaminants and nitrogen to the Great Waters / 1993
Relative Sensitivity of 'Chironomus tentans' Life Stages to Copper. 1984
Relative Sensitivity of Daphnia Magna, Rainbow Trout and Fathead Minnows to Endosulfan. 1983
Relative Toxicity of Organics to 'Chlorella pyrenoidosa'. 1965
Relative Toxicity of Seven Oil-Spill Emulsifiers (Toxicite Relative de Sept Produits Emulsionnants Antipetrole). 1974
Removal and treatment of contaminated river bottoms : field demonstration / 1984
Report for the Subcommittee on Energy, Natural Resources and Environment of the Senate Commerce Committee Hearing on Mercury Contamination Under the Direction of Senator Phillip A. Hart, at Mount Clemens, Michigan, May 8, 1970. 1970
Report of the Pesticides Technical Committee to the Lake Michigan Enforcement Conference on Selected Trace Metals. 1972
Report on Pollution of Lake Michigan in the Vicinity of Chicago's Southerly Water Intakes. 1942
Report on the peer consultation workshop on selenium aquatic toxicity and bioaccumulation / 1998
Report on the use of wetlands for municipal wastewater treatment and disposal / 1987
Report on toxic/hazardous organic compounds in the Wabash River Basin. 1977
Report on Water Pollution, Upper Arkansas River Basin. 1951
Reproductive and Developmental Responses in the Self-Fertilizing Fish, 'Rivulus marmoratus', Induced by the Plasticizer, Di-n-butylphthalate. 1988
Repsonses of Juvenile Largemouth Bass to Different pH and Aluminum Levels at Overwintering Temperatures: Effects on Gill Morphology, Electrolyte Balance, Scale Calcium, Liver Glycogen, and Depot Fat. 1992
Research and development : drinking water criteria document for beryllium / 1991
Research and development : drinking water criteria document for cyanide / 1992
Research and development : drinking water criteria document for endrin / 1992
Research and development : drinking water criteria document for hexachlorobenzene / 1991
Research and development : drinking water criteria document for hexachlorocyclopentadiene / 1991
Research and development : drinking water criteria document for phthalic acid esters (PAES) / 1991
Research and development : drinking water criteria document for polycyclic aromatic hydrocarbons (PAHS) / 1991
Research and development : drinking water criteria document for trichlorobenzenes / 1992
Research and development of a selective algaecide to control nuisance algal growth / 1974
Research Directed Toward Development of Test Procedures for Evaluating Allowable Limits of Concentration of Toxic Substances in Aquatic Environments. 1962
Research perspectives for dolphin mortalities in North America / 1993
Resistance of Tubificid Worms to Three Common Pollutants. 1967
Resistance Patterns to Salinity and Temperature in an Estuarine Mysid ('Mysidopsis bahia') in Relation to Its Life Cycle. 1994
Respiratory-Cardiovascular Physiology and Chloroethane Gill Flux in the Channel Catfish 'Ictalurus punctatus'. 1994
Response of phytoplankton to acidification in experimental streams 1981
Response of tolerant organisms to specific pollutants / 1967
Responses of an Estuarine Population of the Blue Mussel 'Mytilus edulis' to Heated Water from a Steam Generating Plant. 1975
Responses of Developing Estuarine Macrobenthic Communities to Drilling Muds. 1982
Responses of Early Life History Stages of the Striped Bass, 'Morone saxatilis' to Chlorination. 1977
Responses of Estuarine Macrofauna Colonizing Sediments Contaminated with Fenvalerate. 1987
Responses of Experimental Estuarine Communities to Continuous Chlorination. 1981
Responses of Macrobenthos Colonizing Estuarine Sediments Contaminated with Drilling Mud Containing Diesel Oil. 1985
Responses of stream invertebrates to an ashpit effluent : Wisconsin power plant impact study / 1980
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