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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 1567
Showing: Items 801 - 850
Your Search: (SUBJECT=Nitrates.)
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Possibility of Reducing Nitrogen in Drainage Water by on Farm Practices
Possible sources of nitrate in ground water at swine licensed-managed feeding operations in Oklahoma, 2001
Post Audit of a Lake Erie Eutropication Model.
Potentiometric Techniques for Monitoring Ions Involved in Water Pollution.
Powder Mill Pond, Hillsborough County, New Hampshire.
Prairie Rose Lake, Shelby County, Iowa.
Pre-Impoundment Biological Survey of Stockton Reservoir-Sac River, Missouri, August, 1968.
Precipitation scavenging of inorganic pollutants from metropolitan sources /
Preliminary environmental assessment of combustion modification techniques /
Preliminary Results: Modeling Fine Particulate Mass for the Eastern United States Using the EPA Regional Particulate Model.
Pretreatment of the combined industrial-domestic wastewaters of Hagerstown, Maryland /
Pretreatment of the Combined Industrial-Domestic Wastewaters of Hagerstown, Maryland. Appendix. Volume II.
Principles of environmental medicine lecture notes XVII : selected exposures - nitrate/nitrite /
Proceedings of the National Conference on Management of Nitrogen in Irrigated Agriculture, Held in Sacramento, California, on May 15-18, 1978.
Proceedings of the National Conference on Managing Irrigated Agriculture to Improve Water Quality Sponsored by U.S. Environmental Protection Agency and Colorado State University, May 16-18, 1972.
Proceedings of the National Ground Water Quality Symposium, August 25-27, 1971, Denver, Colorado.
Proceedings of the Second Stationary Source Combustion Symposium /
Proceedings of the Second Stationary Source Combustion Symposium.
Proceedings, National Conference on Management of Nitrogen in Irrigated Agriculture /
Production of Organic Nitrates from Hydroxyl and Nitrate Radical Reaction with Propylene.
Proposed Combined Sewer Control by Electrode Potential.
Protocol for evaluating the nitrogen status of lake sediments /
Pymatuning Reservoir, Crawford County, Pennsylvania and Ashtabula County, Ohio.
Quality assurance in support of energy related monitoring activities : annual report no. 2 /
Quality assurance in support of energy related monitoring activities in the Western United States : annual report no. 1 /
Quality assurance project plan for the National Pesticide Survey of Drinking Water Wells : analytical method 9 : nitrate and nitrite /
Quality assurance project plan for the National Pesticide Survey of Drinking Water Wells : referee analyses for analytical method 2--organochlorine pesticides, analytical method 4--carbamates, method 5--methylcarbamates, method 7--fumigants, and method 9--nitrate/nitrite /
Rabbit Lake, Crow Wing County, Minnesota.
Raccoon Lake, Marion County, Illinois.
Rangeley Lake, Franklin County, Maine.
Rathbun Reservoir, Appanoose, Lucas, Monroe, and Wayne Counties, Iowa.
Reactions of a Strongly Basic Ion Exchange Resin with Dilute Aqueous Solutions in a Columnar System.
Reagents for Determinations of Trace Impurities in Water.
Reclamation of Acid Rinse Water.
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.
RED facts : inorganic nitrate/nitrite (sodium and potassium nitrates) /
Reduction of Estuarine Nutrient Loading: Nitrogen and Phosphorus Removal in Coastal Swamp Streams.
Reedy Lake, Polk County, Florida.
Reference manual for FIELD, a program for the simulation of nitrogen flow in a tile-drained corn belt agricultural field /
Region 3 GPRA Baseline RCRA Corrective Action Facility Action Manufacturing
Regional air pollution study : effects of airborne sulfur pollutants on materials /
Regional air pollution study : high volume filter measurements of suspended particulate matter /
Regional analysis of wet deposition for effects research : project summary /
Regional Water Quality Impacts of Intensive Row-Crop Agriculture: A Lake Erie Basin Case Study.
Regional-Scale Pollutant Transport Studies in the Northeastern United States.
Relation between soil characteristics, water movement and nitrate contamination of ground water
Relation Between Soil Characteristics, Water Movement and Nitrate Contamination of Ground Water.
Relation of ground-water flowpaths and travel time to the distribution of radium and nitrate in current and former agricultural areas of the Kirkwood-Cohansey Aquifer System, New Jersey Coastal Plain
Relation of nitrate concentrations in ground water to well depth, well use, and land use in Franklin Township, Gloucester County, New Jersey, 1970-85
Relationships between drainage area characteristics and nonpoint source nutrients in streams : a preliminary analysis of National Eutrophication Survey data from 143 drainage areas in northeastern and northcentral United States /
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