Search Results for the EPA National Library Catalog

Items Found: 1223
Showing: Items 151 - 200
Your Search: (SUBJECT=Algae)

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Biochemical studies of the Potomac estuary--summer 1978 / 1979
Biochrome analysis as a method for assessing phytoplankton dynamics phase I / 1974
Bioconcentration of a Hexachlorobiphenyl in Great Lakes Planktonic Algae. 1982
Bioconcentration of Toxaphene by Microorganisms. 1977
Bioenergetics & metabolism of green algae. 1974
Biofuels from algae / 2014
Bioindicators for assessing ecological integrity of prairie wetlands / 1996
Biological Assessment of Toxicity Caused by Chemical Constituents Eluted from Site Soils Collected at the Drake Chemical Superfund Site, Lock Haven, Clinton Co., Pennsylvania. 1991
Biological Associated Problems in Freshwater Environments. Their Identification, Investigation and Control. 1967
Biological availability of sediment phosphorus inputs to the lower Great Lakes / 1985
Biological availability of sediment phosphorus inputs to the lower Great Lakes / 1984
Biological availability of total phosphorus / 1979
Biological control of aquatic nuisances : a review / 1977
Biological Effects of Wastes Discharged to the North Platte River, Torrington, Wyoming-Bridgeport, Nebraska November 14 and 15, 1962. 1962
Biological Fixation and Transformation of Nitrogen in Small Impoundments. 1970
Biological Impact of Combined Metallic and Organic Pollution in the Coeur d'Alene-Spokane River Drainage System. 1973
Biological Investigations of Lake Wingra. 1973
Biological Investigations of Tuttle Creek Reservoir - Kansas. 1969
Biological models of freshwater communities / 1973
Biological Models of Freshwater Communities. 1973
Biological Phosphorus Removal. 1986
Biological Problems in Water Pollution, Third Seminar, August 31-17, 1962 1965
Biological Problems in Water Pollution. 1957
Biological Survey of Harlan County Reservoir - Nebraska, August 1969. 1970
Biological Survey of Milford Reservoir, Kansas, August 1969. 1971
Biological Survey of the Susquehanna River and Its Tributaries Between Danville, Pennsylvania, and Conowingo, Maryland. 1966
Biological Survey of Wilson Reservoir - Saline River, Kansas, August 1970. 1971
Biological test method. Growth inhibition test using the freshwater alga Selenastrum capricornutum / 1992
Biological, chemical and physical relationships in the Straits of Mackinac / 1976
Biologically allowable thermal pollution limits : Part I and Part II / 1974
Biology of blue-green algae of tide marshes their distribution and the affinity of trichomes for calcium ions. 1975
Biology of Chicago's Waterways. 1965
Biology of marine algae 1966
Biology of seaweeds : levels of organization / 1979
Biology of the red algae / 2010
Biology. A Technical Report Containing Background Data for a Water Pollution Control Program. 1968
Biostimulation and nutrient assessment 1976
Biostimulation Characteristics of Wastes and Receiving Waters of the Snake River Basin. 1974
Blue-greens : (cyanophyta-cyanobacteria) 1983
Brown Tide Bioassay: Growth of 'Aureococcus Anophagefferens' Hargraves Et Sieburth in Various Known Toxicants. 1990
Browns Ferry biothermal research series / 1978
Browns Ferry Biothermal Research Series. II. Effects of Temperature on Bluegill and Walleye, and Periphyton, Macroinvertebrate, and Zooplankton Communities in Experimental Ecosystems. 1979
Brush control along agricultural drainage ditches environmental safety and efficacy of herbicide formulations / 1974
Carbon and Nitrogen as Regulators of Algal Growth in Treated Sewage. 1972
Carbonaceous and nitrogenous demand studies of the Potomac Estuary / 1977
Case study of a marine discharge : comparison of effluent and receiving water toxicity / 1989
Catalog of Research in Aquatic Pest Control and Pesticide Residues in Aquatic Environments. 1972
Cell Death and Inhibition of Population Growth of Marine Unicellular Algae by Pesticides. 1983
Changes in Water Environment Resulting from Aquatic Plant Control. 1970
Characteristics of benthic algal communities in the upper Great Lakes / 1980
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