Search Results for the EPA National Library Catalog

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Persistence in model ecosystems / 1982
Persistence of a Surrogate for a Genetically Engineered Cellulolytic Microorganism and Effects on Aquatic Community and Ecosystem Properties: Mesocosm and Stream Comparisons. 1993
Persistence of chlorinated hydrocarbon contamination in a California marine ecosystem / 1989
Personal Computers and Environmental Engineering. Part 1. Trends and Perspectives. 1987
Perspective on the Role of Microcosms in Environmental Fate and Effects Assessments. 1982
Perspectives on nonpoint source pollution : proceedings of a national conference, Kansas City, Missouri, May 19-22, 1985. 1985
Perspectives on the Chesapeake Bay, 1990 : advances in estuarine sciences / 1990
Pest management principles for the commercial applicator : aquatic pest control / 1995
Pesticidal Aspects of Chlordane in Relation to Man and the Environment. 1976
Pesticide and xenobiotic metabolism in aquatic organisms : based on a symposium sponsored by the Division of Pesticide Chemistry at the 176th meeting of the American Chemical Society, Miami Beach, Florida, September 11-17, 1978 / 1979
Pesticide application and safety training study guide : aquatic pest control 1985
Pesticide assessment guidelines : subdivision E, hazard evaluation, wildlife and aquatic organisms : addendum 2 on data reporting : series 72-1-72-5, aquatic testing for marine/estuarine and freshwater fish and invertebrates / 1988
Pesticide Degradation by Marine Algae. 1975
Pesticide fact sheet number 230 : clethodim / 1992
Pesticide Inputs and Risks in Coastal Wetlands. 1993
Pesticide testing with littoral enclosures / 1990
Pesticide usage and its impact on the aquatic environment in the southeast / 1972
Pesticides : water quality standards criteria summaries : a compilation of state/federal criteria / 1988
Pesticides in aquatic environments / 1977
Pesticides in natural systems : how can their effects be monitored? : Proceedings of the conference. 1991
Pesticides in stream sediment and aquatic biota : distribution, trends, and governing factors / 1999
Pesticides in the aquatic environment / 1972
Petrochemical Effluents Treatment Practices. 1970
pH Control of Industrial Effluents. Volume 1. 1978
Phenol : ambient water quality criteria. 1978
Phenolics in aquatic ecosystems : a selected review of recent literature / 1979
Phosphorus : water quality standards criteria summaries : a compilation of state/federal criteria / 1988
Phosphorus Bioavailability of Fluvial Sediments Determined by Algal Assays. 1988
Phosphorus biogeochemistry in subtropical ecosystems / 1999
Phosphorus Inactivation by Zirconium in a Eutrophic Pond. 1982
Photochemistry of environmental aquatic systems : developed from a symposium sponsored by the Divisions of Geochemistry and Environmental Chemistry at the 189th Meeting of the American Chemical Society, Miami Beach, Florida, April 28-May 3, 1985 / 1987
Photosynthesis in the marine environment / 2014
Phreatophyte research in the western states March 1959 to July 1964 1964
Phthalate esters : ambient water quality criteria. 1978
Phthalate esters in the aquatic environment 1980
Phycovirus bibliography / 1977
Phylogenetic Tree of 16S rRNA Sequences from Sulfate-Reducing Bacteria in a Sandy Marine Sediment. 1994
Physical and Chemical Factors That Influence the Anaerobic Degradation of Methyl Parathion in Sediment Systems. 1986
Physical and Chemical Stratification in Two High Altitude Reservoirs of the Colorado River Basin. 1963
Physical and environmental characteristics of experimental ponds at the Lewisville Aquatic Ecosystem Research Facility / 1995
Physical and hydrologic characteristics of aquatic habitat associated with dike systems in the Lower Mississippi River, River Mile 320 to 610, AHP 1985
Physical effects of wet weather flows on aquatic habitats : present knowledge and research needs / 2003
Physical Impacts to Habitats in Tampa Bay. 1994
Physical Oceanography of the Dying Aral Sea [electronic resource] / 2005
Physical Properties and Processing Characteristics of Macrophytes as Related to Mechanical Harvesting. 1970
Physical, chemical and biological conditions of the Sagavanirktok River and nearby control streams, Shaviovik and Canning Rivers : draft report / 1981
Physico-Chemical Limnology and Periphyton in a Warm-Water Stream Receiving Wastewater Treatment Plant Effluent. 1972
Physicochemical factors affecting toxicity : pH, salinity and temperature. Part I, Literature review / 1989
Physicochemical Factors Affecting Toxicity in Freshwater: Hardness, pH, and Temperature (Chapter 1). 1994
Physiological effects of 2, 4-D and 2, 4, 5T on selected aquatic organisms. 1979
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