Search Results for the EPA National Library Catalog

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Select Item Title Year Published
15N Natural Abundance and (15)N Labelling Studies in Forest Ecosystems. 1994
Air Quality Data for 1968, from the National Air Surveillance Networks and Contributing State and Local Networks. 1972
Air quality data for nonmetallic inorganic ions : NH4+, NO3-, SO4=, 1976, from the National Air Surveillance Networks / 1979
Air quality data for nonmetallic inorganic ions, 1969 and 1970, from the National Air Surveillance Networks. 1973
Air quality data from the national air surveillance networks and contributing state and local networks / 1968
Algal nutrient availability and limitation in Lake Ontario during IFYGL : Part II. Nitrogen available in Lake Ontario tributary water samples and urban runoff from Madison, Wisconsin / 1977
Algal Nutrient Studies of the Potomac Estuary. 1977
Ammonia absorption/ammonium bisulfate regeneration pilot plant for flue gas desulfurization / 1977
Ammonia Absorption/Ammonium Bisulfate Regeneration Pilot Plant for Flue Gas Desulfurization. 1977
Ammonium sulfamate : pesticide registration standard. 1981
Ammonium-Carbonate leaching of metal values from water-treatment sludges / 1977
Automatic Determination of Ammonia Nitrogen in Mineral Compounds (Dosage Automatique de l'Azote Ammoniacal dans les Mineralisats). 1961
Availability and Uptake of Inorganic Nitrogen in a Mixed Old-Growth Coniferous Forest. 1993
AWWA standard for ammonium sulfate. 1990
Bacterial Growth Efficiency on Natural Dissolved Organic Matter. 1993
Characteristics of Lakes in the Eastern United States. Volume 3. Data Compendium of Site Characteristics and Chemical Variables. 1986
Chattanooga, Tennessee--Rossville, Georgia, interstate air quality study, 1967-1968 / 1970
Chemical/biological relationships relevant to ecological effects of acid rainfall / 1975
Comparison of Three Methods for Measurement of Atmospheric Nitric Acid and Aerosol Nitrate and Ammonium. 1985
Control of Nitrogen in Wastewater Treatment. 1971
Development of the mesopuff II dispersion model / 1984
Distribution of Natural and Anthropogenic Elements and Compounds in Precipitation Across the U.S.: Theory and Quantitative Models. 1972
Effect of Animal Wastes Applied to Soils on Surface and Ground Water Systems. 1972
Effect of Herbicides, Pesticides, and Fertilizers on the Optical Properties of Water. 1971
Effect of Organophosphorus Pesticides on Estuarine Ammonium Oxidizers. 1980
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 the Quantity and Duration of Application of Simulated Acid Precipitation on Nitrogen Mineralization and Nitrification in a Forest Soil. 1986
Effects of Ammonium and Nitrate on Nutrient Uptake and Activity of Nitrogen Assimilating Enzymes in Western Hemlock. 1993
Effects of Temperature, pH, Salinity, and Inorganic Nitrogen on the Rate of Ammonium Oxidation by Nitrifiers Isolated from Wetland Environments. 1980
Eutrophication of surface waters : Lake Tahoe's Indian Creek Reservoir / 1975
Evaluating ACQ as an alternative wood preservative system : project summary / 1994
Evaluation of equations for designing ammoniacal scrubbers to remove sulfur oxides from waste gas / 1974
Fate of Nitrogen in Aquatic Ecosystems. 1972
Fourier transform infrared spectrometry of ambient aerosols / 1988
Germicidal Efficiency of Silver, Iodine, and Quaternary Ammonium compounds. 1961
Granulation of complex fertilizers containing ammonium sulfate by melt technology / 1976
Interaction between an Ammonium-Oxidizer, 'Nitrosomonas' sp., and Two Heterotrophic Bacteria, 'Nocardia atlantica' and 'Pseudomonas' sp.: A Note. 1980
Ionic Composition of Acid Lakes in Relation to Airborne Inputs and Watershed Characteristics. 1986
Letter to USEPA Regarding Information Developed on the Presence of 1,4-Dioxane in Two Specific Products, the Sodium and Ammonium Salts of Alcohol Ethoxysulfates (Sanitized). 1979
Luxury Consumption of Phosphorus by Benthic Algae. 1982
Mass and Composition of an Urban Aerosol as a Function of Particle Size for Several Visibility Levels. 1977
New Technology for Treatment of Wastewater by Reverse Osmosis. 1970
Nitrogen in Industry. 1971
Phosphate reduction and response of plankton populations in Kootenay Lake / 1976
Pilot-plant study of an ammonia absorption-ammonium bisulfate regeneration process : topical report phases I and II / 1974
PR Notice 88-2. Notice to Producers, Formulators, Distributors and Registrants. Clustering of Quaternary Ammonium Compounds. 1988
Properties of ammonium sulfate, ammonium bisulfate, and sulfur dioxide solutions in ammonia scrubbing processes / 1973
R.E.D. facts : soap salts. 1992
Recommended Methods of Reduction, Neutralization, Recovery, or Disposal of Hazardous Waste. Volume XII. Industrial and Municipal Disposal Candidate Waste Stream Constituent Profile Reports. Inorganic Compounds. 1973
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