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United States Environmental Protection Agency
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Items Found: 1579
Showing: Items 51 - 100
Your Search: (SUBJECT=Nitrates)
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Algae-Bacteria Interaction in a Light-Dark Cycle (Journal Version).
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 /
Alkalinity Regulation in Softwater Florida Lakes.
Allatoona Lake Destratification Equipment Test Appendix A: Operational and Water Quality Data 1968.
Allatoona Lake Destratification Equipment Test Report.
Allegheny Reservoir, McKean and Warren Counties, Pennsylvania and Cattaraugus County, New York.
Alligator Lake, Columbia County, Florida.
Altoona Lake, Eau Claire County, Wisconsin.
Ambient air audits of analytical proficiency
Ammonia and Nitrate TMDLs for Stone Dam Creek Watershed. Faulkner County, Arkansas River Valley Ecoregion Planning Segment 3f USGS HUC 11110203.
An acid aerosols issue paper : health effects and aerometrics.
An Acid aerosols issue paper : health effects and aerometrics.
An approach for the preliminary assessment of TSP concentrations.
An assessment of the CHESS sulfate and nitrate data during the period RETA performed the chemical analysis /
An investigation of ion removal from water and wastewater /
An investigation of the nitrate problem in Runnels County, Texas /
Anaerobic Filter for the Denitrification of Agricultural Subsurface Drainage.
Analyses of Cytogenetic Damage in Rodents Following Exposure to Simulated Groundwater Contaminated with Pesticides and a Fertilizer.
Analysis of acid precipitation samples collected by state agencies : sampling period January-December 1990 (annual report) /
Analysis of acid precipitation samples collected by state agencies--sampling period January 1991-December 1991 : annual report /
Analysis of acid precipitation samples collected by state agencies--sampling period January 1992-December 1992 /
Analysis of Acid Precipitation Samples Collected by State Agencies. Sampling Period: January-December 1993.
Analysis of ground water by different laboratories : a comparison of chloride and nitrate data, Nassau and Suffolk Counties, New York /
Analysis of nonpoint-source pollutants in the Missouri Basin Region /
Analytical Reference Service Training Program. Sample Type IA, Water-Minerals.
Analytical Reference Service Training Program. Sample Type IV, Air-Inorganic.
Analytical Reference Service. Report on Sample Type I.
Angostura Reservoir, Fall River County, South Dakota.
Animal Waste Utilization for Pollution Abatement - Technology and Economics. Phase I.
Anion mobility in soils : relevance to nutrient transport from terrestrial to aquatic ecosystems /
Annual Nutrient Cycles in a Marine Microcosm.
Annular Denuders for Use in Global Climate and Stratospheric Measurements of Acidic Gases and Particles (Abstract Only).
Another look : National survey of pesticides in drinking water wells : phase II report.
Application of geostatistics for mapping nitrate contaminated groundwater
Application of spatially referenced regression modeling for the evaluation of total nitrogen loading in the Chesapeake Bay Watershed /
Aquatic-Biotic Community Structure as an Indicator of Pollution.
Arkabutla Reservoir, DeSoto and Tate Counties, Mississippi.
Arrowhead Mountain Lake Chittenden and Franklin Counties Vermont.
Arsenic and Nitrate Removal from Drinking Water by Ion Exchange, U.S. EPA Demonstration Project at Vale, Or, Final Report Evaluation Report.
Assessing nitrogen leaching in unsaturated media from septic tank wastes for the North Animas Valley, La Plata County, Colorado a wellhead protection screening assessment and planning document /
Assessment of Bulk Atmospheric Deposition to the Tampa Bay Watershed.
Assessment of CWS Facilities Utilizing the Macon-Christian Strip Aquifer in Central Illinois.
Assessment of deposition levels of sulfur and nitrogen required to protect aquatic resources in selected sensitve regions of North America /
Assessment of sources of elevated nitrate in ground water in Northwest Ada County, Idaho, using environmental isotopes /
Assessment of the Contribution of Chemical Species to the Eye Irritation Potential of Photochemical Smog.
Atmospheric Chemistry of cis- and trans-3-Hexene-2,5-dione.
Atmospheric emissions from nitric acid manufacturing processes : cooperative study project, Manufacturing Chemists' Association, Inc., and Public Health Service.
Atmospheric Emissions from Nitric Acid Manufacturing Processes.
Atmospheric nitrogen deposition loadings to the Chesapeake Bay : an initial analysis of the cost effectiveness of control options /
Atmospheric Nitrogen Deposition to Coastal Estuaries and their Watersheds.
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