Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Nitrate/nitrite : fact sheet on a drinking water chemical contaminant. 1992
Nitrate/nitrite toxicity 1991
Nitrates : an environmental assessment : a report / 1978
Nitrates and phosphorus runoff losses from small watersheds in Great Lakes Basin, 1978
Nitrates in groundwater 1997
Nitrates in groundwater resulting from manure applications to irrigated cropland / 1982
Nitrates in Groundwater Resulting from Manure Applications to Irrigated Croplands. 1982
Nitrates, nitrites, and N-nitroso compounds 1978
Nitrates. 1971
Nitrates: An Environmental Assessment. 1978
Nitric Acid-Nitrate Aerosol Measurements by a Diffusion Denuder: A Performance Evaluation. 1987
Nitrification and Denitrification of Waste Water. 1971
Nitrite-Accelerated Photochemical Degradation of Cellulose as a Pretreatment for Microbiological Conversion to Protein. 1973
Nitrogen action plan / 1991
Nitrogen and irrigation management to reduce return-flow pollution in the Columbia Basin / 1976
Nitrogen and phosphorus in wastewater effluents, working paper no. 22, a prelim. analysis of Nat. Eutrophication Survey data collected during the 1972-73 sampling period. 1974
Nitrogen and phosphorus losses from agronomy plots in North Alabama / 1974
Nitrogen concentrations and deposition in rainfall at two sites in the Coastal Bend area, South Texas, 1996-98 1999
Nitrogen dynamics in the tidal freshwater Potomac River, Maryland and Virginia, water years 1979-81 : a water-quality study of the tidal Potomac River and estuary / 1989
Nitrogen in Industry. 1971
Nitrogen in the subsurface environment / 1975
Nitrogen oxide interferences in the measurement of atmospheric particulate nitrates : final report 1979
Nitrogen Oxides Reactions Within Urban Plumes Transported Over the Ocean Project Summary 1983
Nitrogen Oxides Reactions within Urban Plumes Transported over the Ocean. 1983
Nitrogen removal from wastewaters 1970
Nitrogen Removal from Wastewaters. 1970
Nitrogenous compounds in the environment. 0
North Carolina barrier islands wastewater management : final environmental impact statement / 1984
North Waubay Lake, Day County, South Dakota. 1976
Northboro, Hudson, Maynard, and Billerica Impoundments, Worcester and Middlesex Counties, Massachusetts. 1975
Nutrient Limitation and Adaption of Microbial Populations to Chemical Transformations. 1986
Nutrient Management. Supplement to the Journal of Soil and Water Conservation Volume 49, Number 2. 1994
Nutrient Regeneration by Zooplankton in Southern Lake Huron. 1983
Nutrient Removal from Wastewater by Physical-Chemical Processes. 1971
Nutritional Requirements of the Submerged Angio-Sperm 'Ruppia maritima' in Algae-Free Culture. 1984
O'Shaughnessy Reservoir, Delaware County, Ohio. 1975
O. C. Fisher (San Angelo) Reservoir, Tom Green County, Texas. 1977
Occurrence and distribution of nitrate and selected pesticides in ground water in Missouri, 1986-94 / 1996
Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995 / 1998
Occurrence of Nitrate in Drinking Water, Food and Air. 1985
Occurrence of nitrate in the Mississippi River alluvial aquifer in Louisiana, June through December 1993 1997
Occurrence of nitrate, pesticides, and volatile organic compounds in the Kirkwood-Cohansey Aquifer system, southern New Jersey 1997
Occurrence of pesticides and nitrate in Nebraska's ground water / 1990
Oconomowoc Lake, Waukesha County, Wisconsin. 1975
Okauchee Lake, Waukesha County, Wisconsin. 1975
Old Ben Mine Reservoir, Franklin County, Illinois. 1975
Olin Lake, LaGrange County, Indiana. 1976
Oliver Lake, LaGrange County, Indiana. 1976
On-Line Colorimetric Analyzers for Monitoring Nitrate-Nitrite, Ammonia, Orthophosphorus and Total Hydrolyzable Phosphorus in Wastewater-Treatment Process Streams. 1974
One Mgd Ion Exchange Plant for Removal of Nitrate from Well Water. 1984
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