National Water-Quality Assessment (NAWQA) Program
More Information about Nutrients
Nutrients National Synthesis
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Effects of Nutrient Enrichment on Stream Ecosystems |
Sources, Transport, and Fate of Agricultural Chemicals
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Showing results 126 to 151 of 649.
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Rosen, Michael R., Voss, Frank D., and Arufec, Jorge A., 2008, Evaluation of Intra-annual Variation in U.S. Geological Survey National Water Quality Assessment Ground Water Quality Data: Journal of Environmental Quality, vol. 37, no. 5, p. S199-S208. doi: 10.2134/jeq2007.0055 Available Online
Rupert, Michael G., 2008, Decadal-Scale Changes of Nitrate in Ground Water of the United States, 1988-2004: Journal of Environmental Quality, vol. 37, no. 5, p. S240-S248. doi: 10.2134/jeq2007.0055 Available Online
Saad, David A., 2008, Agriculture-Related Trends in Groundwater Quality of the Glacial Deposits Aquifer, Central Wisconsin: Journal of Environmental Quality, vol. 37, p 209-225. doi: 10.2134/jeq2007.0053 Available Online
U.S. Geological Survey, 2008, Relations of Water Quality to Agricultural Chemical Use and Environmental Setting at Various Scales - Results from Selected Studies of the National Water-Quality Assessment Program: U.S. Geological Survey Fact Sheet FS 2007-3088, 6 p. Available Online
Wilson, John T., Baker, Nancy T., Moran, Michael J., Crawford, Charles G., Nowell, Lisa H., Toccalino, Patricia L., and Wilber, William G., 2008, Methods and Sources of Data Used to Develop Selected Water-Quality Indicators for Streams and Ground Water for the 2007 Edition of The State of the Nation's Ecosystems Report with Comparisons to the 2002 Edition: U.S. Geological Survey Open-File Report 2008-1110, 61 p. Available Online
Alexander, Richard B., Boyer, E.W., Smith, R.A., Schwarz, G.E., and Moore, R.B., 2007, The role of headwater streams in downstream water quality: Journal of the American Water Resources Association, vol. 43, no. 1, p. 41-59. doi: 10.1111/j.1752-1688.2007.00005.x Available Online
Baker, N.T., Stone, W.W., Frey, J.W., and Wilson, J.T., 2007, Water and agricultural-chemical transport in a Midwestern, tile-drained watershed-Implications for conservation practices: U.S. Geological Survey Fact Sheet 2007-3084, 6 p. Available Online
Bales, J.D., and Nardi, M.R., 2007, Automated routines for calculating whole-stream metabolism-Theoretical background and user's guide: U.S. Geological Survey Techniques and Methods 4-C2, 33 p. Available Online
Bartholomay, Roy C., Carter, Janet M., Qi, Sharon L., Squillace, Paul J., and Rowe, Gary L., 2007, Summary of selected U.S. Geological Survey data on domestic well water quality for the Centers for Disease Control's National Environmental Public Health Tracking Program: U.S. Geological Survey Scientific Investigations Report 2007-5213, 57 p. Available Online
Burow, K.R., Dubrovsky, N.M., and Shelton, J. L., 2007, Temporal trends in concentrations of DBCP and nitrate in groundwater in the eastern San Joaquin Valley, California, USA: Hydrogeology Journal (2007), v. 15, p. 991-1007. doi: 10.1007/s10040-006-0148-7 Available Online
Debrewer, L.M., Ator, S.W., and Denver, J.M., 2007, Factors affecting spatial and temporal variability in nutrient and pesticide concentrations in the surficial aquifer on the Delmarva Peninsula: U.S. Geological Survey Scientific Investigations Report 2005-5257, 44 p. Available Online
Giddings, E.M., Moorman, M., Cuffney, T.F., McMahon, Gerard, and Harned, D.A., 2007, Selected physical, chemical, and biological data for 30 urbanizing streams in the North Carolina Piedmont ecoregion, 2002-2003: U.S. Geological Survey Data Series 279, 15 p. Available Online
Gurdak, J.J., McCray, J.E., Thyne, G.D., and Qi, S.L., 2007, Latin hypercube approach to estimate uncertainty in ground water vulnerability: Ground Water, vol. 45, p. 348-361. doi: 10.1111/j.1745-6584.2006.00298.x Available Online
Johnson, M.R., Buell, G.R., Kim, M.H., and Nardi, M.R., 2007, Riparian land use/land cover data for five study units in the Nutrient Enrichment Effects Topical study of the National Water-Quality Assessment Program: U.S. Geological Survey Data Series 306, 9 p. Available Online
Katz, Brian G., Crandall, Christy A., Metz, Patricia A., McBride, William S., and Berndt, Marian P., 2007, Chemical characteristics, water sources and pathways, and age distribution of ground water in the contributing recharge area of a public-supply well near Tampa, Florida, 2002-05: U.S. Geological Survey Scientific Investigations Report 2007-5139, 85 p. Available Online
McMahon, Gerard, Tervelt, Larinda, and Donehoo, William, 2007, Methods for Estimating Annual Wastewater Nutrient Loads in the Southeastern United States: U.S. Geological Survey Open-File Report 2007-1040, 81 p. Available Online
McMahon, P.B., Bohlke, J.K., and Carney, C.P., 2007, Vertical gradients in water chemistry and age in the northern High Plains aquifer, Nebraska, 2003: U.S. Geological Survey Scientific Investigations Report 2006-5294, 58 p. Available Online
McMahon, P.B., Dennehy, K.F., Bruce, B.W., Gurdak, J.J., and Qi, S.L., 2007, Water-quality assessment of the High Plains aquifer, 1999-2004: U.S. Geological Survery Professional Paper 1749, 136 p. Available Online
Paul, Angela P., Seiler, Ralph L., Rowe, Timothy G., and Rosen, Michael R., 2007, Effects of Agriculture and Urbanization on Quality of Shallow Ground Water in the Arid to Semiarid Western United States, 1993-2004: U.S. Geological Survey Scientific Investigations Report 2007-5179, 56 p. Available Online
Rebich, R.A., and Demcheck, D.K., 2007, Trends In Nutrient and Sediment Concentrations and Loads In Major River Basins of the South-Central United States, 1993-2004: USGS Scientific Investigations Report 2007-5090, 112 p. Available Online
Sprague, L.A., Harned, D.A., Hall, D.W., Nowell, L.H., Bauch, N.J., and Richards, K.D., 2007, Response of stream chemistry during base flow to gradients of urbanization in selected locations across the conterminous United States: U.S. Geological Survey Scientific Investigations Report 2007-5083, 132 p. Available Online
Spruill, T.B., and Bratton, John F., 2007, Estimation of Groundwater and Nutrient Fluxes to the Neuse River Estuary, North Carolina: Estuaries and Coasts (2008), p. 501-520. Available Online
Stanton, J.S., Steele, G.V., and Vogel, J.R., 2007, Occurrence of agricultural chemicals in shallow ground water and the unsaturated zone, northeast Nebraska glacial till, 2002-2004: U.S. Geological Survey Scientific Investigations Report 2007-5228, 51 p. Available Online
Tesoriero, Anthony J., Saad, David A., Burow, Karen R., Frick, Elizabeth A., Puckett, Larry J., and Barbash, Jack E., 2007, Linking ground-water age and chemistry data along flow paths: Implications for trends and transformations of nitrate and pesticides: Journal of Contaminant Hydrology, vol. 94, p. 139-155. doi: 10.1016/j.jconhyd.2007.05.007 Available Online
Turner, R.E., Rabalais, N.N., Alexander, R.B., McIsaac, G., and Howarth, R.W., 2007, Characterization of nutrient, organic carbon, and sediment loads and concentrations from the Mississippi River into the Northern Gulf of Mexico: Estuaries and Coasts, vol. 30, no. 5, p. 773-790. doi: 10.1007/BF02841333 Available Online
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