National Water-Quality Assessment (NAWQA) Program
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Showing results 326 to 351 of 606.
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Puckett, Larry J., 1994, Nonpoint and point sources of nitrogen in major watersheds of the United States: U.S. Geological Survey Water-Resources Investigations Report 94-4001, 9 p. Available Online
Lopes, Thomas J., and Bender, David A., 1998, Nonpoint sources of volatile organic compounds in urban areas--Relative importance of land surfaces and air: Environmental Pollution, vol. 101 (1998), p. 221-230. doi: 10.1016/S0269-7491(98)00048-7Â Available Online
Skinner, K.D., and Rupert, M.G., 2012, Numerical model simulations of nitrate concentrations in groundwater using various nitrogen input scenarios, mid-Snake region, south-central Idaho: U.S. Geological Survey Scientific Investigations Report 2012-5237, 30p. Available Online
Clark, Gregory M., Mueller, David K., and Mast M. Alisa, 2000, Nutrient concentrations and yields in undeveloped stream basins of the United States: Journal of the American Water Resources Association, vol. 36, no. 4, August 2000, p. 849-860. doi: 10.1111/j.1752-1688.2000.tb04311.x Available Online
Robertson, D.M., and Saad, D.A., 2001, Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 23 p. doi: 10.1111/j.1752-1688.2011.00574.x Available Online
Maupin, M.A., and Ivahnenko, T., 2011, Nutrient loadings to streams of the continental United States from municipal and industrial effluent: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 15 p. doi: 10.1111/j.1752-1688.2011.00576.x Available Online
Brown, J.B., Sprague, L.A., and Dupree, J.A., 2011, Nutrient sources and transport in the Missouri River Basin, with emphasis on the effects of irrigation and reservoirs: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 27 p. doi: 10.1111/j.1752-1688.2011.00584.x Available Online
Sprague, L.A., Mueller, D.K., Schwarz, G.E., and Lorenz, D.L., 2009, Nutrient trends in streams and rivers of the United States, 1993-2003: U.S. Geological Survey Scientific Investigations Report 2008-5202, 196 p. Available Online
Dubrovsky, N.M., and Hamilton, P.A., 2010, Nutrient's in the Nation's streams and groundwater: National Findings and Implications: U.S. Geological Survey Fact Sheet 2010-3078, 6 p. Available Online
Mueller, David K., Hamilton, Pixie A., Helsel, Dennis R., Hitt, Kerie J., and Ruddy, Barbara C., 1995, Nutrients in ground water and surface water of the United States--An analysis of data through 1992: U.S. Geological Survey Water-Resources Investigations Report 95-4031, 74 p. Available Online
Nolan, Bernard T., and Stoner, Jeffrey D., 2000, Nutrients in groundwaters of the conterminous United States, 1992-1995: Environmental Science and Technology, vol. 34, no. 7, p. 1156-1165. doi: 10.1021/es9907663 Available Online
Nolan, Bernard T., and Hitt, Kerie J., 2003, Nutrients in shallow ground waters beneath relatively undeveloped areas in the conterminous United States: U.S. Geological Survey Water-Resources Investigations Report 02-4289, 17 p. Available Online
Mueller, D.K., and Spahr, N.E., 2006, Nutrients in streams and rivers across the Nation: U.S. Geological Survey Scientific Investigations Report 2006-5107, 44 p. Available Online
Dubrovsky, N.M., and Capelli, K.L., 2010, Nutrients in the Nation's Streams and Groundwater: U.S. Geological Survey Multimedia Gallery Home Audio 372, 8 minutes. Available Online
Mueller, David K., and Helsel, Dennis R., 1996, Nutrients in the Nation's water--Too much of a good thing?: U.S. Geological Survey Circular 1136, 24 p. Available Online
Graffy, Elisabeth A., Helsel, Dennis R., and Mueller, David K., 1996, Nutrients in the Nation's waters: Identifying problems and progress: U.S. Geological Survey Fact Sheet 218-96, 6 p. Available Online
Tesoriero, Anthony J., and Puckett, Larry J., 2011, O2 reduction and denitrification rates in shallow aquifers: Water Resources Research, vol. 47, W12522, 17 p. doi: 10.1029/2011WR010471 Available Online
Francy, Donna S., Helsel, Dennis H., and Nally, Rebecca A., 2000, Occurrence and distribution of microbiological indicators in ground water and stream water: Water Environment Research, vol. 72, no. 2, p. 152-161. doi: 10.2175/106143000X137220 Available Online
Lopes, Thomas J. Furlong, Edward T., and Pritt, Jeffrey W., 1997, Occurrence and distribution of semivolatile organic compounds in stream bed sediments, United States, 1992-95: in Little, E.E., DeLonay, A.J., and Greenberg, B.M., eds., Environment Toxicology and Risk Assessment: Seventh Volume, ASTM STP 1333, 1998.
Steele, G.V., Johnson, H.M., Sandstrom, M.W., Capel, P.D., and Barbash, J.E., 2008, Occurrence and fate of pesticides in four contrasting agricultural settings in the United States: Journal of Environmental Quality, vol. 37, p. 1116-1132. doi: 10.2134/jeq2007.0166 Available Online
Chang, F., Simcik, M.F., and Capel, P.D., 2011, Occurrence and fate of the herbicide glyphosate and its degradate aminomethylphosphonic acid in the atmosphere: Environmental Toxicology and Chemistry, vol. 30, no. 3 , p. 548-555. doi: 10.1002/etc.431 Available Online
Szabo, Zoltan, dePaul, Vincent T., Fischer, Jeffrey M., Kraemer, Thomas F., and Jacolsen, Eric, 2012, Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States: Applied Geochemistry, vol. 27, Issue 3, March 2012, p. 729-752. doi: 10.1016/j.apgeochem.2011.11.002 Available Online
Moran, Michael J., Zogorski, John S., and Squillace, Paul J., 2004, Occurrence and implications of methyl tert-butly ether and gasoline hydrocarbons in ground water and source water in the United States and in drinking water in 12 northeast and mid-Atlantic states, 1993-2002: U.S. Geological Survey Water-Resources Investigations Report 03-4200, 26 p. Available Online
Lopes, Thomas J., and Furlong, Edward T., 2001, Occurrence and potential adverse effects of semivolatile organic compounds in stream bed sediments, United States, 1992-95: Environment Toxicology and Chemistry, vol. 20 no. 4, p. 727-737. Available Online
Rowe, B.L., Toccalino, P.L., Moran, M.J., Zogorski, J.S., and Price, C.V., 2007, Occurrence and potential human-health relevance of volatile organic compounds in drinking water from domestic wells in the United States: Environmental Health Perspectives, vol. 115, no. 11, p. 1539-1546. doi: 10.1289/ehp.10253 Available Online
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