Search Results for the EPA National Library Catalog

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Select Item Title Year Published
A mass-balance nitrate model for predicting the effects of land use on groundwater quality in municipal wellhead protection areas / 1988
A memorandum report on nitrates in ground waters of the San Joaquin Valley. 1970
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 : nh4+, n03-, s04= - 1975 - from the national air surveillance networks. 1978
Application of geostatistics for mapping nitrate contaminated groundwater 1994
Application of spatially referenced regression modeling for the evaluation of total nitrogen loading in the Chesapeake Bay Watershed / 1999
Assessment of sources of elevated nitrate in ground water in Northwest Ada County, Idaho, using environmental isotopes / 1999
Deterministic and stochastic evaluation of nitrate-nitrogen leaching from soils with dual pore systems in karst regions final report / 1991
Distribution of selected herbicides and nitrate in the Mississippi River and its major tributaries, April through June 1991 / 1991
Ecosystem stress from chronic exposure to low levels of nitrate / 2005
Effects of conservation tillage on groundwater quality : nitrates and pesticides / 1987
Effects of land use and travel time on the distribution of nitrate in the Kirkwood-Cohansey aquifer system in southern New Jersey 2001
Environmental carcinogens selected methods of analysis 1978
Geochemistry and characteristics of nitrogen transport at a confined animal feeding operation in a coastal plain agricultural watershed, and implications for nutrient loading in the Neuse River Basin, North Carolina, 1999-2002 / 2005
Ground water monitoring technical completion report : evaluation of agricultural best management practices to reduce nonpoint source ground water nitrate in Southern Minidoka County, Idaho : Minidoka/Cassia Ground Water Monitoring Project / 1999
Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, Middle Atlantic coast / 1998
Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport at study sites in the Piedmont and Coastal Plain physiographic provinces, Patuxent River Basin, Maryland 1997
Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport at study sites in the Piedmont and Coastal Plain physiographic provinces, Patuxent River Basin, Maryland 1995
Health effects of nitrates in water / 1977
Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991 1994
Hydrogeologic foundations in support of ecosystem restoration : base-flow loadings of nitrate in mid-Atlantic agricultural watersheds / 1999
Hydrogeologic, water-quality, and land-use data for the reconnaissance of herbicides and nitrate in near-surface aquifers of the midcontinental United States, 1991 1993
Hydrogeology, ground-water quality, and sources of nitrate in lowland glacial aquifers of Whatcom County, Washington, and British Columbia, Canada 1999
Management of nitrogen in irrigated agriculture : proceedings, National Conference on Management of Nitrogen in Irrigated Agriculture / 1978
Mass-balance nitrate model for predicting the effects of land use on ground-water quality 1990
Metrics for nitrate contamination of ground water at CAFO Land Application Site : Arkansas dairy study / 2009
Metrics for nitrate contamination of ground water at CAFO land application sites : Iowa swine study / 2009
Metrics for nitrate contamination of ground water at CAFO land application sites : Iowa swine study / 2009
Model of nitrate leaching from agricultural systems in Virginia's Northern Neck 1993
National pesticide survey : Nitrate. 1990
Nitrate (NO2+NO3-N) in ground water of the Upper Snake River Basin, Idaho and western Wyoming, 1991-95 / 1997
Nitrate and pesticides in ground water of the eastern San Joaquin Valley, California : occurrence and trends / 1998
Nitrate and selected pesticides in ground water of the Mid-Atlantic region / 1997
Nitrate flux from ground to surface waters adjacent to the Neuse River Waste Water Treatment Plant 2006
Nitrate in drinking water report to the legislature. 1988
Nitrate in ground water and surface water in a residential subdivision, West Windsor Township, Mercer County, New Jersey, 1993 1996
Nitrate in precipitation : a presentation of data from the European Air Chemistry Network (EACN) 1985
Nitrate in the Columbia aquifer, central Delmarva Peninsula, Maryland / 1984
Nitrate occurrence in U.S. waters (and related questions) a reference summary of published sources from an agricultural perspective / 1991
Nitrate reduction in the Armstrong Creek Basin 1996
Nitrate removal from water supplies by ion exchange : executive summary / 1977
Nitrate, volatile organic compounds, and pesticides in ground water--a summary of selected studies from New Jersey and Long Island, New York 1999
Nitrate-rich groundwaters of Australia 1983
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, nitrites, and N-nitroso compounds 1978
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
Occurrence and distribution of nitrate and selected pesticides in ground water in Missouri, 1986-94 1996
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