Search Results for the EPA National Library Catalog

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Organic Acidity in Maine (U.S.A.) Lakes and in HUMEX Lake Skjervatjern (Norway). 1991
Organic chemicals in drinking water. 1990
Organic chemicals in natural waters : applied monitoring and impact assessment / 1984
Organic geochemistry of natural waters / 1985
Organic micropollutants in the aquatic environment : proceedings of the fifth European symposium held in Rome, Italy, October 20-22, 1987 / 1988
Organic substances and sediments in water / 1900
Organic substances in water 1981
Organic Wastes as a Means of Accelerating Recovery of Acid Strip-Mine Lakes. 1973
Origin of the chemical composition of undisturbed forested streams, western Olympic Peninsula, Washington state / 1979
Origin, Effects and Control of Turbidity in an Urban Recreational Lake. 1973
Oswego Harbor, New York, chemical and physical characteristics data for 1972 / 1980
Oxidation and Acidification of Anaerobic Sediment-Water Systems by Autoclaving. 1993
Oxygen relationships in streams : proceedings of a seminar sponsored by the water supply and water pollution program of the Sanitary Engineering Center, October 30-November 1, 1957. 1958
Paleoecological Investigation of Recent Lake Acidification in the Adirondack Mountains, N. Y. 1990
Partition Coefficients for Fe, Mn, Pb, Ni, Zn, Cu Between River Water and Suspended Load, and Mineralogical Composition of Suspended Load of Selected Kansas River Systems. 1972
Partitioning based approaches to study exposure and effects of hydrophobic organic substances = Partitie als basis voor het bestuderen van blootstelling en effecten van hydrofobe organische stoffen : proefschrift / 2000
Partitioning of Selected Polychlorinated Biphenyls to Natural Sediments. 1978
Passive Sampling of Groundwater Monitoring Wells without Purging: Multilevel Well Chemistry and Tracer Disappearance. 1993
Past and present water column anoxia / 2006
Perspectives on Environmental Monitoring: An Introduction to the U.S. EPA Long-Term Monitoring (LTM) Project. 1993
Pesticide Assessment Guidelines: Subdivisions N, E, and K. Data Reporting Guideline for Environmental Chemistry Methods. 1995
Petroleum hydrocarbons & organic chemicals in gound {sic} water : prevention, detection, & remediation conference : November 29 - December 1, 1995, Houston, Texas. 1995
Petroleum Hydrocarbons and Organic Chemicals in Ground Water : prevention, detection, and restoration, November 4-6, 1992, the Westin Galleria, Houston, Texas. 1992
Petroleum hydrocarbons and organic chemicals in ground water prevention, detection, and restoration, November 10-12, 1993, the Westin Galleria, Houston, Texas. 1993
Phosphorus loading and bacterial contamination of Cascade Reservoir Boise Project, Idaho / 1983
Photochemical Fate of Agrochemicals in Natural Waters. 1991
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
Physical and chemical characteristics of aquatic humus / 1976
Physical, chemical, and biological characteristics of three reservoirs in west-central Missouri, 1991-93 1995
Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1969-80 1989
Physicochemical Factors Affecting Toxicity in Freshwater: Hardness, pH, and Temperature (Chapter 1). 1994
Phytoplankton and Zooplankton in Lakes Erie, Huron and Michigan: 1984. Volume 1. Interpretive Report. 1987
Pilot Study to Evaluate Biological, Physical, Chemical and Land-Use Characteristics in Maryland Coastal Plain Streams. 1993
Pilot Study to Evaluate Biological, Physical, Chemical, and Land-Use Characteristics in Maryland Coastal Plain Streams. Year 2. 1995
PIRLA 2 Project: Regional Assessment of Lake Acidification Trends. 1990
PIRLA DBMS Quick Reference Guide. 1991
Plankton Associations and Related Factors in a Hipereutrophic Lake. 1971
Pollution of the Interstate Waters of the Monongahela River System. 1963
Polyphosphate water-treatment products : their effects on the chemistry and solubility of lead in potable water systems / 1991
Poplar River Rishery Investigation Montana, May, July-August 1975 1975
Potential Future Effects of Current Levels of Sulfur Deposition on Stream Chemistry in the Southern Blue Ridge Mountains, U.S. 1990
Potential sources of error in ground-water sampling at hazardous waste sites / 1992
POTW's and Water Quality: In Search of the Big Picture, Appendices. 1988
Preconcentration techniques for natural and treated waters : high sensitivity determination of organic and organometallic compounds, cations and anions / 2003
Predicting acidification of North American lakes 1983
Predicting and Evaluating the Effects of Acidic Precipitation on Water Chemistry and Endemic Fish Populations in the Northeastern United States. 1986
Predicting and forecasting surface water acidification: a planfor assessing data aggregation effects / 1991
Predicting Spring Lake Chemistry from Fall Samples. 1987
Predicting the Future Long-Term Effects of Acidic Deposition on Surface Water Chemistry: The Direct/Delayed Response Project. 1989
Prediction of Environmental Pollutant Concentration. 1978
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