Search Results for the EPA National Library Catalog

Items Found: 5692

Showing: Items 5351 - 5400

Your Search: (SUBJECT=Biology.)


Select Item Title Year Published
Toluene : ambient water quality criteria. 1979
Topics on Expressing and Predicting Results of Life-Cycle Tests. 1987
Toward a Cleaner Aquatic Environment. 1973
Toward a new philosophy of biology : observations of an evolutionist / 1988
Toward classification and rationale for watershed management and stream protection / 1979
Towards a theoretical biology. An IUBS symposium, 1968
Towards Sustainable Cities in China Analysis and Assessment of Some Chinese Cities in 2008 / [electronic resource] : 2011
Toxaphene : ambient water quality criteria. 1978
Toxaphene : chronic toxicity to fathead minnows and channel catfish / 1977
Toxaphene effects on reproduction, growth, and mortality of brook trout / 1975
Toxaphene status report : special report to the Hazardous Materials Advisory Committee, Environmental Protection Agency / 1971
Toxic action of water soluble pollutants on freshwater fish / 1970
Toxic Cations and Marine Biota: Analysis of Research Effort during the Three Year Period 1974-1976. 1979
Toxic contaminant characterization of aquatic organisms in Galveston Bay a pilot study / 1992
Toxic contaminants in Long Island Sound 1989
Toxic Effects of Cadmium on the Garden Snail ('Helix aspersa'). 1981
Toxic Effects of Cadmium on Three Generations of Brook Trout (Salvelinus fontinalis). 1976
Toxic Effects of the Herbicide Paraquat. 1974
Toxic effects of xenobiotics on the pituitary gland. {microfiche} 1991
Toxic effects of zinc on fathead minnows Pimephales promelas in soft water / 1978
Toxic Pollutants in China Study of Water Quality Criteria / [electronic resource] : 2015
Toxic Residues and Pollutants. 1979
Toxic Substances and Pesticides Action Agenda for the Gulf of Mexico. 1994
Toxic Summary Prepared by Indus Bio-Test Lab., Inc. with Cover Letter. 1983
Toxic Weighting Factors for Pesticide Active Ingredients and Priority Pollutants. 1993
Toxicant-receptor interactions : modulation of signal transduction and gene expression / 1998
Toxicity and Bioaccumulation of Cadmium and Lead in Aquatic Invertebrates. 1978
Toxicity and Bioaccumulation of Endrin and Methoxychlor in Aquatic Invertebrates and Fish. 1980
Toxicity and Bioconcentration of BHC and Lindane in Selected Estuarine Animals. 1977
Toxicity and Estimated Water Quality Criteria Values in Mallard Ducklings Exposed to Pentachlorophenol. 1994
Toxicity Evaluation of a Complex Metal Mixture to the Softshell Clam 'Mya arenaria'. 1977
Toxicity Evaluations for Hazardous Waste Sites: An Ecological Assessment Perspective. 1989
Toxicity of Amitrole in the Rat. 1972
Toxicity of Chemosterilants. 1962
Toxicity of chlorine and ammonia to aquatic life Chemistry, water quality criteria, recent research, and recommended future research. 1991
Toxicity of Chlorine to Juvenile Spot, Leiostomus Xanthurus. 1977
Toxicity of copper to daphnids in reconstituted and natural waters / 1976
Toxicity of DDT food and water exposure to fathead minnows / 1976
Toxicity of Drilling-Mud Biocides to Developing Estuarine Macrobenthic Communities. 1980
Toxicity of Fentin Hydroxide to Rats. 1967
Toxicity of four pesticides to water fleas and fathead minnows : acute and chronic toxicity of acrolein, heptachlor, endosulfan, and trifluralin to the water flea (Daphnia magna), and the fathead minnow (Pimephales promelas) / 1976
Toxicity of Hexamethylphosphoramide in Rats. 1966
Toxicity of metals to marine phytoplankton cultures / 1980
Toxicity of Metepa to Rats, With Notes on Two Other Chemosterilants. 1964
Toxicity of Paraquat to Rats and Its Effect on Rat Lungs. 1969
Toxicity of Pentachlorophenol to Aquatic Organisms under Naturally Varying and Controlled Environmental Conditions. 1986
Toxicity of polychlorinated biphenyls (PCB's) to fish and other aquatic life 1977
Toxicity of Pyrethroids to Marine Invertebrates and Fish: A Literature Review and Test Results with Sediment-Sorbed Chemicals. 1989
Toxicity of residual chlorine compounds to aquatic organisms / 1978
Toxicity of Sediments from Western Lake Erie and the Maumee River at Toledo, Ohio, 1987: Implications for Current Dredged Material Disposal Practices. 1990

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