Search Results for the EPA National Library Catalog

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The wolf's tooth : keystone predators, trophic cascades, and biodiversity / 2010
Theoretical Basis for Modeling Element Cycling. 1986
Three multimedia models used at hazardous and radioactive waste sites / 1996
Tidal flats in estuarine water quality analysis / 1975
Tissue burdens of selected radionuclides in beef cattle on and around the Nevada Test Site / 1976
Total Human Exposure: Basic Concepts, EPA Field Studies, and Future Research Needs. 1990
Toxic chemicals and human food chains : a selected bibliography / 1981
Toxic Effects of Cadmium on the Garden Snail ('Helix aspersa'). 1981
Toxic Residues and Pollutants. 1979
Toxicity Assessment of Dredged Materials: Acute and Chronic Toxicity as Determined by Bioassays and Bioaccumulation Tests. Proceedings of the International Seminar on the Environmental Aspects of Dredging Activities (Actes du Seminaire International sur les Aspects Environnementaux lies aux Activities de Dragages). 1990
Toxicity in the aquatic environment; proceedings, 1961
Toxicity of DDT food and water exposure to fathead minnows / 1976
Toxicity to Fathead Minnows of Endrin in Food and Water. 1978
Transient Phase between Growth and Nongrowth of Heterotrophic Bacteria, with Emphasis on the Marine Environment. 1987
Transport and Transformation of Contaminants Near the Sediment-Water Interface. Chapter 1. Introduction. 1994
Transport of Contaminants in the Great Lakes. 1982
Tritium retention by cows and steers and transfer to milk / 1977
Trophic Level Interrelationships in Cayuga Lake, New York. 1973
Trophic organization in coastal systems 2003
Trophic structure modifications by planktivorous fish in aquatic microcosms / 1977
Uptake of Cerium-144, Promethium-147, and Plutonium-238 by Oat Plants from Soils. 1971
Uptake of Planar Polychlorinated Biphenyls and 2,3,7,8-Substituted Polychlorinated Dibenzofurans and Dibenzo-p-dioxins by Birds Nesting in the Lower Fox River and Green Bay, Wisconsin, USA. 1993
Use of Periphyton in the Development of Biocriteria. 1994
Use of Pesticides in Suburban Homes and Gardens and Their Impact on the Aquatic Environment. 1972
Use of stable carbon and nitrogen isotopes to trace the larval striped bass food chain in the Sacramento-San Joaquin Estuary, California, April to September 1985 / 1989
Use of the mixed flask culture (MFC) microcosm protocol to estimate the survival and effects of microorganisms added to freshwater ecosystems / 1989
UTAB Users Manual. Microcomputer Version. First Edition, 1991. 1991
Validation strategy for the integrated exposure uptake biokinetic model for lead in children / 1994
Variable Selectivity and the Role of Nutritional Quality in Food Selection by a Planktonic Rotifer. 1990
WASTOX (Water Quality Analysis Simulation for Toxics), a Framework for Modeling the Fate of Toxic Chemicals in Aquatic Environments. Part 2. Food Chain. 1985
WASTOX : a framework for modeling the fate of toxic chemicals in aquatic environments Food chain / 1985
WASTOX : a framework for modeling the fate of toxic chemicals in aquatic environments. Part 2, Food chain / 1985
Water quality assessment of proposed effluent guidelines for the pulp, paper, and paperboard industry. 1993
Watershed Planning in the Albemarle-Pamlico Estuarine System. Report 3. Toxics Analysis. 1992
What are the Effects of UV-B Radiation on Marine Organisms. 1988
Working conceptual model for the food web of the San Francisco Bay/Delta Estuary : an essay / 1995
Workshop on effects of sewage sludge quality and soil properties on plant uptake of sludge-applied trace constituents - proceedings 1987
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