Search Results for the EPA National Library Catalog

Items Found: 1484
Showing: Items 751 - 800
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Select Item Title Year Published
New Metabolite of Chlorpyrifos: Isolation and Identification. 1977
New Perspectives on the Hydrolytic Degradation of the Organophosphorothioate Insecticide Chlorpyrifos. 1983
Ninth United States/Japan Conference on Sewage Treatment Technology, September 19-21, 1983, Tokyo, Japan : proceedings. 1985
Nitrate and phosphorus runoff losses from small watersheds in Great Lakes Basin / 1978
Nitrates and phosphorus runoff losses from small watersheds in Great Lakes Basin, 1978
Nitrogen and phosphorus control by two facilities in Florida / 1979
Nitrogen and phosphorus determinations in estuarine waters : a comparison of methods used in Chesapeake Bay monitoring / 1987
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 in Water. An Annotated Selected Bibliography of Their Biological Effects. 1965
Nitrogen and phosphorus in water; an annotated selected bibliography of their biological effects, by Kenneth M. Mackenthun. 1965
Nitrogen and phosphorus losses from agronomy plots in North Alabama / 1974
Nitrogen and phosphorus reactions in overland flow of wastewater / 1981
Nitrogen, phosphorus, and carbon flux in Chesapeake Bay marshes 1976
Nitrogen, Phosphorus, and Suspended Solid Concentrations in Tributaries to the Great Bay Estuary Watershed in 2008. 2009
Nitrogen, Phosphorus, and Suspended Solids Concentrations in Tributaries to the Great Bay Estuary Watershed in 2009. A Final Report to The Piscataqua Region Estuaries Partnership. 2010
Nitrogen, Phosphorus, and Suspended Solids Concentrations in Tributaries to the Great Bay Estuary Watershed in 2010. Final Report. 2011
Nitrogen, Phosphorus, and Suspended Solids Concentrations in Tributaries to the Great Bay Estuary Watershed in 2011. 2012
Non-Point Source Studies on Chesapeake Bay. II. Nutrients in Land Runoff from Rhode River Watersheds in 1975 and 1976. 1977
Nonpoint source - stream nutrient level relationships : a nationwide study / 1977
Nonpoint source -- stream nutrient level relationships : a nationwide study. Supplement 1- / 1979
Nonpoint source control of phosphorus : a watershed evaluation / 1986
Nonpoint source model calibration in Honey Creek Watershed / 1979
Nonpoint Source Pollution Impacts of Alternative Agricultural Management Practices in Illinois: A Simulation Study. 1993
Nonpoint Source Sampling Design Report. Areawide Waste Treatment Management Plan for the Greater Houston Area. 1977
Nonpoint Sources: An Assessment of Pollutant Loadings to Lakes and Rivers in North Central Texas. 1977
Nutrient chemistry of a large, deep lake in subarctic Alaska / 1978
Nutrient concentrations, loads, and yields in the Eucha-Spavinaw Basin, Arkansas and Oklahoma, 2002-2004 / 2006
Nutrient control / 1983
Nutrient control by plant modification at El Lago, Texas / 1976
Nutrient Control Design Manual: State of Technology Review Report. 2009
Nutrient Control in the Chesapeake Bay. A Statement Issued by the Scientific and Technical Advisory Committee, Chesapeake Bay Program. 1986
Nutrient Control in the Chesapeake Bay: A Statement Issued by the Scientific and Technical Advisory Committee (STAC), Chesapeake Bay Program. 1986
Nutrient cycling in the Great Lakes : a summarization of factors regulating the cycling of phosphorus / 1980
Nutrient diversion : resulting lake trophic state and phosphorus dynamics / 1977
Nutrient Enrichment of Runoff Waters by Soils. Phase I: Phosphorus Enrichment Potential of Urban Soils in the City of Madison. 1972
Nutrient inactivation as a lake restoration procedure : laboratory investigations / 1974
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 and advanced waste treatment : [proceedings] Lloyd Center Auditorium, Portland, Oregon, February 5-6, 1969 / 1969
Nutrient Removal and Advanced Waste Treatment Symposium held in Cincinnati, Ohio, on April 29-30, 1969. 1969
Nutrient Removal and Advanced Waste Treatment. Advanced Waste Treatment Seminar Held at Portland, Oregon on February 5 and 6, 1969. 1969
Nutrient removal from cannery wastes by spray irrigation of grassland / 1969
Nutrient Removal from Wastewater by Physical-Chemical Processes. 1971
Nutrient Sources and Transport in the Upper and Central Regions of the Big Sioux River. 1973
Nutrient Transport and Dissolved Oxygen Budget Studies in the Potomac Estuary. 1972
Nutrient, bacterial, and virus control as related to ground-water contamination / 1977
Nutrient-Uptake Model in Marsh Ecosystems. 1979
Nutrients : trends and system response / 1994
Nutrients : trends and system response / 1995
Nutrients and phytoplankton in Puget Sound 1991
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