Search Results for the EPA National Library Catalog

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Determination of Nitrogen Dioxide in the Air. Establishment of the Nitrogen Dioxide-Nitrite Ion Conversion Factor (Opredelenie Soderzhaniya Dvuokisi Azota v Vozdukhe. Ustanovlenie Koeffitsienta Perekhoda Dvuokisi Azota v Nitrit-ion). 1973
Determination of Sulphate in Nitric Acid-Sulphuric Acid Mixtures. 1971
Deterministic and stochastic evaluation of nitrate-nitrogen leaching from soils with dual pore systems in karst regions final report / 1991
Development of a chemical denitrification process / 1970
Development of a Chemical Denitrification Process. 1970
Development of a prototype nitrate detector / 1974
Development of information on pesticides manufacturing for source assessment / 1978
Development of Sulfur-Limestone Autotrophic Denitrification Processes for Treatment of Nitrate-Contaminated Groundwater in Small Communities. 2004
Devils Lake, Benson and Ramsey Counties, North Dakota. 1976
Dillon Reservoir - Blue River Study. Colorado, June, July, August - 1973. 1974
Dillon Reservoir, Muskingum County, Ohio. 1975
Dilute solution reactions of the nitrate ion as applied to water reclamation / 1968
Distribution of nitrate and related nitrogen species in the unsaturated zone, Redlands and vicinity, San Bernardino County, California 1979
Distribution of nitrates and other water pollutants under fields and corrals in the middle South Platte Valley of Colorado 1967
Distribution of phytoplankton in Illinois lakes / 1978
Don Pedro Reservoir, Tuolumne County, California. 1978
Douglas Lake; Sevier, Jefferson, and Cocke Counties, Tennessee. 1976
Drinking water criteria document for nitrate/nitrite : final draft / 1987
Drinking Water Criteria Document on Nitrate/Nitrite (Final Draft). 1985
Drinking Water from Agriculturally Contaminated Groundwater. 1991
Drinking water treatment technology for groundwater remediation / 1989
Dry deposition flux calculations for the National Dry Deposition Network {MICROFICHE} / 1993
Duhernal Lake, Middlesex County, New Jersey. 1976
Dworshak Reservoir, Clearwater County, Idaho. 1977
Dynamics of the Nitrogen Cycle in Lakes. 1970
E. V. Spence Reservoir, Coke County, Texas. 1977
East Oakwood Lake, Brookings County, South Dakota. 1977
East Vermillion Lake, McCook County, South Dakota. 1976
Economic benefits of controlling water pollution in an irrigated river basin : Methodology and application / 1983
Economic Evaluation of Alternative Farm Water Sources in the Claypan Area of Illinois. 1973
Ecosystem stress from chronic exposure to low levels of nitrate / 2005
Effect of Animal Wastes Applied to Soils on Surface and Ground Water Systems. 1972
Effect of Environmental Factors on Phytoplankton Growth: Light and the Interactions of Light with Nitrate Limitation (Journal Version). 1981
Effect of Methylmercuric Chloride, Cadmium Chloride, and Lead Nitrate on Six Biochemical Factors of the Brook Trout (Salvelinus fontinalis). 1977
Effect of Nitrate Addition on Biorestoration of Fuel-Contaminated Aquifer: Field Demonstration. 1991
Effect of pH on the Release of Phosphorus from Potomac River Sediments. 1986
Effect of Simulated Acid Precipitation on Nitrogen Mineralization and Nitrification in Forest Soils. 1984
Effect of Simulated Acid Rain on Nitrification and Nitrogen Mineralization in Forest Soils. 1981
Effect of Simulated Sulfuric Acid Rain on the Chemistry of a Sulfate-Adsorbing Forest Soil. 1985
Effect of soil temperature and pH on nitrification kinetics in soils receiving a low level of ammonium enrichment 1981
Effect of Unlined Treated Sewage Storage Ponds on Water Quality in the Ogallala Formation. 1971
Effects of Acid Rain on Water Supplies in the Northeast. 1984
Effects of Acidification on Stream Ecosystems. 1982
Effects of Atrazine on Aquatic Ecosystems: A Physical and Mathematical Modeling Assessment. 1985
Effects of conservation tillage on groundwater quality : nitrates and pesticides / 1987
Effects of Enrichment on Lake Superior Periphyton. 1973
Effects of forest fertilization with urea on major biological components of small cascade streams, Oregon / 1979
Effects of irrigation methods on groundwater pollution by nitrates and other solutes / 1976
Effects of land use and travel time on the distribution of nitrate in the Kirkwood-Cohansey aquifer system in southern New Jersey 2001
Effects of Nitrate and Phosphate Limitation on Cyclostat Growth of Two Freshwater Diatoms (Journal Version). 1982
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