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
Development of a prototype nitrate detector / 1974
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
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 on Nitrate/Nitrite (Final Draft). 1985
Drinking water treatment technology for groundwater remediation / 1989
Duhernal Lake, Middlesex County, New Jersey. 1976
Dworshak Reservoir, Clearwater County, Idaho. 1977
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
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 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
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 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 Nitrogen Oxides on Vegetation. 1985
Effects of Nitrogen Sources on P-Limited Growth of 'Anabaena Flos-Aquae'. 1983
Effects of Pollution on Water Quality Perdido River and Bay, Alabama and Florida. 1970
Effects of Uranium Mining and Milling on Ground Water in the Grants Mineral Belt, New Mexico. 1977
Effluent monitoring procedures, nutrients : student reference manual / 1976
Effluent Monitoring Procedures: Nutrients. Staff Guide for Conducting the Course. 1977
Elbow Lake, St. Louis County, Minnesota. 1974
Embarrass Lake, St. Louis County, Minnesota. 1974
Enemy Swim Lake, Day County, South Dakota. 1977
Enid Lake, Yalobusha County, Mississippi. 1975
Environmental Effects of Pollutants from Coal Combustion: 2. The Colstrip, Montana Power Plant. 1981
Estes Lake, York County, Maine. 1974
Estimating nutrient loadings of lakes from non-point sources / 1974
Estimating nutrient loadings of lakes from non-point sources / 1974
Eutrophication and Water Pollution. 1966
Eutrophication as a Problem in the Finger Lakes. 1972
Eutrophication of surface waters : Lake Tahoe's Indian Creek Reservoir / 1975
Evaluation of Proposed TG and E (Tucson Gas and Electric Company) Wastewater Discharge on Groundwater in the Tucson Basin. 1977
Evaluation of the National Eutrophication Survey Data. 1977
Experimental Study of Lake Loading by Aerosol Transport and Dry Deposition in the Southern Lake Michigan Basin. 1979
Fall Lake, Lake County, Minnesota. 1975
Fallen Leaf Lake, El Dorado County, California. 1978
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