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Hydroxyatrazine in soils and sediments: Environmental Toxicology and Chemistry, v. 18, no. 10, p. 2161-2168, doi:10.1897/1551-5028(1999)018<2161:HISAS>2.3.CO;2.

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Accurate mass analysis of ethanesulfonic acid degradates of acetochlor and alachlor using high-performance liquid chromatography and time-of-flight mass spectrometry: Journal of Chromatography, v. 957, no. 1, p. 3-9, doi:10.1016/S0021-9673(01)01470-4.

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Acetochlor in the hydrologic system in the midwestern United States, 1994: Environmental Science and Technology, v. 30, no. 5, p. 1459-1464, doi:10.1021/es9503241.

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Advances in solid-phase extraction disks for environmental chemistry: Trends in Analytical Chemistry, v. 19, no. 1, p. 18-26.

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Agrichemicals in ground water of the Midwestern USA--Relations to soil characteristics: Journal of Environmental Quality, v. 28, no. 6, p. 1908-1915.

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Agricultural chemical contamination of ground water in six areas of the High Plains aquifer, Nebraska, in National water summary 1986--Hydrologic events and ground-water quality: U.S. Geological Survey Water-Supply Paper 2325, p. 103-108.

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Agricultural chemical interchange between ground water and surface water, Cedar River Basin, Iowa and Minnesota--A study description: U.S. Geological Survey Open-File Report 92-85, 26 p.

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Agricultural chemicals in Iowa's ground water, 1982-95 -- What are the trends: U.S. Geological Survey Fact Sheet FS-116-97, 4 p.

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Agricultural chemicals in ground water of the Midwest--Proceedings of the 12th Annual Water and the Future of Kansas Conference, in, Manhattan, Kansas, February 28-March 1, 1995: p. 19-21.

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Agricultural chemicals in surface-water resources of the Midcontinental United States, in American Water Resources Association, NAWQA (National Water Quality Assessment Program) session, Proceedings, New Orleans, September, 1991: p. 373-374.

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Agricultural research to improve water quality: Journal Soil and Water Conservation, v. 46, no. 3, p. 184-188.

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Airborne pesticide residues along the Mississippi River: Environmental Science and Technology, v. 32, no. 23, p. 3689-3698, doi:10.1021/es9802403.

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Analysis and detection of the herbicides dimethenamid and flufenacet and their sulfonic and oxanilic acid degradates in natural water: Journal of Agricultural and Food Chemistry, v. 50, no. 5, p. 1045-1052, doi:10.1021/jf010779b.

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Analysis of atrazine metabolites by enzyme-linked immunosorbent assay and gas chromatography/mass spectrometry, in Mallard, G.E., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 568-571.

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Analysis of chlorothalonil and three degradates in sediment and soil: Journal of Agricultural and Food Chemistry, v. 56, no. 7, p. 2310-2314, doi:10.1021/jf703695s.

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Analysis of environmental data with censored observations: Environmental Science and Technology, v. 31, no. 12, p. 3358-3362, doi:10.1021/es960695x.

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Analysis of nitrate in near-surface aquifers in the midcontinental United States--An application of the inverse hyperbolic sine Tobit model: Water Resources Research, v. 32, no. 10, p. 3003-3011, 96WR02102, doi:10.1029/96WR02102.

Scribner, E.A., Thurman, E.M., and Zimmerman, L.R., 1999,

Analysis of selected herbicide metabolites in surface and ground water of the United States, in Daniel, B.J., ed., Proceedings of the Twenty-ninth Mississippi Water Resources Conference, Raymond, Mississippi, April 7-8, 1999: Mississippi Water Resources Research Institute, p. 110-119.

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Analysis of selected herbicide metabolites in surface and ground water of the United States, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 2 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, p. 355-365.

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Analysis of selected herbicide metabolites in surface and ground water of the United States: The Science of the Total Environment, v. 248, no. 2-3, p. 157-167, doi:10.1016/S0048-9697(99)00539-2.

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Analytical applications of immunoassays in environmental and agricultural chemistry--study of the fate and transport of herbicides: Lawrence, University of Kansas, Department of Chemistry, Ph.D. thesis, 220 p.

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Annual use and transport of agricultural chemicals in the Mississippi River, 1991-92, in Goolsby, D.A., Boyer, L.L., and Mallard, G.E., eds., Selected papers on agricultural chemicals in water resources of the Midcontinental United States: U.S. Geological Survey Open-File Report 93-418, p. 26-40.

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Annual use and transport of agricultural chemicals in the Mississippi River, 1991-92, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 429-440.

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Application of a model to evaluate agrichemical loading to ground water at the Plains, Georgia, research site, in Mallard, G.E., and Ragone, S.E., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Phoenix, Arizona, September 26-30, 1988: U.S. Geological Survey Water-Resources Investigations Report 88-4220, p. 639.

Mills, M.S., Thurman, E.M., and Pedersen, M.J., 1993,

Application of mixed-mode, solid-phase extraction in environmental and clinical chemistry--Combining hydrogen-bonding, cation-exchange and Van der Waals interactions: Journal of Chromatography, v. 629, p. 11-21.

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Application of solid-phase extraction (SPE) for ultratrace analysis of herbicides in water and soil by enzyme-linked immunosorbent assay (ELISA), in Kurtz, D.A., Skerritt, J.H., and Stanker, L., eds., Agrochemical Immunoanalysis-93: Arlington, Va., AOAC International, p. 317.

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Application of the gleams model at the Plains, Georgia, agricultural-management site, in Mallard, G.E., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 601-604.

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Aquifer vulnerability to pesticide pollution - combining soil, land-use and aquifer properties with molecular descriptors: Journal of Hydrology, v. 293, no. 1-4, p. 191-204, doi:10.1016/j.jhydrol.2004.01.013.

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Are shifts in herbicide use reflected in concentration changes in midwestern rivers?: Environmental Science and Technology, v. 33, no. 17, p. 2917-2925, doi:10.1021/es9900149.

Juracek, K.E., and Thurman, E.M., 1997,

Assessing aquifer contamination risk using immunoassay--Tracer analysis of atrazine in unsaturated zone sediment: Journal of Environmental Quality, v. 26, p. 1080-1089.

Burkart, M.R., Kolpin, D.W., and James, D.E., 1999,

Assessing groundwater vulnerability to agrichemical contamination in the midwest U.S.: Water Science and Technology, v. 39, no. 3, p. 103-112.

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Assessing the effect of pesticides in agricultural runoff on aquatic life in the Sangamon River near Monticello, Illinois: Water, Science, and Technology, v. 28, no. 3-5, p. 569-573.

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Assessment of contamination from arsenical pesticide use on orchards in the great valley region, Virginia and West Virginia, USA: Journal of Environmental Quality, v. 36, no. 3, p. 654-663, doi:10.2134/jeq2006.0413.

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Assessment of nonpoint-source contamination of the High Plains aquifer in south-central Kansas, 1987, Chapter C of Analysis of nonpoint-source ground-water contamination in relation to land use: U.S. Geological Survey Water-Supply Paper 2381-C, 51 p.

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Atmospheric deposition of nitrogen in the Mississippi River Basin, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 2 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, p. 331-337.

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Atmospheric deposition of nutrients, pesticides, and mercury in Rocky Mountain National Park, Colorado, 2002: U.S. Geological Survey Water-Resources Investigations Report 03-4241 (Online only), 15 p.

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Atmospheric nitrogen in the Mississippi River Basin--emissions, deposition and transport: The Science of the Total Environment, v. 248, no. 2-3, p. 87-99, doi:10.1016/S0048-9697(99)00533-1.

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Atmospheric transport, deposition, and fate of triazine herbicides and their metabolites in pristine areas at Isle Royale National Park: Environmental Science and Technology, v. 34, no. 15, p. 3079-3085, doi:10.1021/es000995l.

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Atrazine and alachlor degradation in wetlands: The effect of hydrophyte community structure: Lawrence, University of Kansas, Department of Biological Sciences, Masters thesis, 146 p.

Adams, C.D., Randtke, S.J., Thurman, E.M., and Hulsey, R.A., 1990,

Atrazine and its degradation products in soil and ground water, and the effectiveness of water-treatment processes for their removal, in University of Kansas Environmental 40th Annual Conference, Proceedings, Lawrence, Kan., February 7, 1990: p. 1-24.

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Atrazine concentrations in near-surface aquifers--A censored regression approach: Journal of Environmental Quality, v. 25, no. 5, p. 992-999.

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Atrazine degradation in a small stream in Iowa: Environmental Science and Technology, v. 27, no. 1, p. 134-139, doi:10.1021/es00038a014.

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Atrazine in the Midwestern United States, in U.S. Geological Survey Yearbook, Fiscal Year 1990, p. 55-57.

McMahon, P.B., Chapelle, F.H., and Jagucki, M.L., 1992,

Atrazine mineralization potential of alluvial aquifer sediments under aerobic conditions: Environmental Science and Technology, v. 26, no. 8, p. 1556-1559, doi:10.1021/es00032a010.

Cromwell, A.E., and Thurman, E.M., 1996,

Atrazine transport and degradation in a pristine watershed--The fate of atrazine deposited by precipitation, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 423-428.

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Atrazine transport through preferential pathways at the Missouri MSEA, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 607-611.

Meyer, M.T., Mills, M.S., and Thurman, E.M., 1993,

Automated-solid phase extraction of herbicides from water for gas chromatographic-mass spectrometric analysis: Journal of Chromatography, v. 629, p. 55-59.

Goodwin, K.D., Schaefer, J.K., and Oremland, R.S., 1998,

Bacterial oxidation of dibromomethane and methyl bromide in natural waters and enrichment cultures: Applied and Environmental Microbiology, v. 64, no. 12, p. 4629-4636.

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Bacterial oxidation of methyl bromide in Mono Lake, California: Environmental Science and Technology, v. 31, no. 5, p. 1489-1495, doi:10.1021/es960732k.

Miller, L.G., Connell, T.L., Guidetti, J.R., and Oremland, R.S., 1997,

Bacterial oxidation of methyl bromide in fumigated agricultural soils: Applied and Environmental Microbiology, v. 63, no. 11, p. 4346-4354.

Capel, P.D., 1990,

A bibliography of atrazine and its simple degradation products in the environment: U.S. Geological Survey Open-File Report 89-613, 4 diskettes, 5 p.

Verstraeten, I.M., Thurman, E.M., Lindsey, M.E., Lee, E.C., and Smith, R.D., 2002,

Changes in concentrations of triazine and acetamide herbicides by bank filtration. ozonation, and chlorination in a public water supply: Journal of Hydrology, v. 266, p. 190-208, doi:10.1016/S0022-1694(02)00163-4.

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Changes in herbicide concentrations in Midwestern streams in relation to changes in use, 1989-1998: The Science of the Total Environment, v. 248, no. 2-3, p. 255-263, doi:10.1016/S0048-9697(99)00547-1.

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Changes in herbicide concentrations in midwestern streams in relation to changes in use, 1989-98, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 2 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, p. 313-321.

Rutledge, A.T., and Helgesen, J.O., 1990,

Characterization of ground-water flow and chemical transport beneath two irrigated fields in south-central Kansas, 1988: U.S. Geological Survey Water-Resources Investigations Report 90-4065, 37 p.

Jagucki, M.L., Finton, C.D., Springer, A.E., and Bair, E.S., 1993,

Characterization of hydrology and water quality at the Ohio Management Systems Evaluation Area, in Watermeir, N.L., ed., Proceedings of the Ohio Buried Valley Aquifer Management Systems Evaluation Area Colloquium, Columbus, Ohio, October 27, 1993: Columbus, Ohio, Ohio State University, p. 13-16.

Delin, G.N., Landon, M.K., Lamb, J.A., and Anderson, J.L., 1994,

Characterization of the hydrogeology and water quality at the Management Systems Evaluation Area near Princeton, Minnesota: U.S. Geological Survey Water-Resources Investigations Report 94-4149, 54 p.

Leenheer, J.A., Furlong, E.T., Ferrer, I., and Rostad, C.E., 2003,

Charge characteristics and fragmentation of polycarboxylic acids by electrospray ionization/multistate tandem mass spectrometry (ESI/MS/MS), in Ferrer, I., and Thurman, E.M., eds., Liquid Chromatography/Mass Spectrometry, MS/MS and Time of Flight MS--Analysis of Emerging Contaminants (Orlando meeting): American Chemical Society Symposium Series 850, p. 312-324.

Battaglin, W.A., Kendall, C., Chang, C.C.Y., Silva, S.R., and Campbell, D.H., 2001,

Chemical and isotopic evidence of nitrogen transformation in the Mississippi River, 1997-98: Hydrological Processes, v. 15, no. 7, p. 1285-1300, doi:10.1002/hyp.214.

Moody, J.A., and Battaglin, W.A., 1996,

Chemical character of the Mississippi River, in Meade, R.H., ed., Contaminants in the Mississippi River, 1987-92: U.S. Geological Survey Circular 1133, p. 31-39.

Soenksen, P.J., Hatfield, J.L., and Schmitz, D.J., 1996,

Chemical loads of nitrate, atrazine, and metolachlor in Walnut Creek watershed near Ames, Iowa, 1991-92, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 597-605.

Thurman, E.M., Mills, M.S., and Meyer, M.T., 1996,

Chemistry, degradation, and transport of triazine herbicide metabolites in surface water, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 455-462.

Venkatesan, M.I., de Leon, R.P., van Geen, A., and Luoma, S.N., 1999,

Chlorinated hydrocarbon pesticides and polychlorinated biphenyls in sediment cores from San Francisco Bay, in The impact of human activities on sediments of San Francisco Bay, California, van Geen, A., and Luoma, S.N., eds.,: Marine Chemistry, v. 64, no. 1-2, p. 85-97, doi:10.1016/S0304-4203(98)90086-X.

Thurman, E.M., Ferrer, I., and Barcelo, D., 2001,

Choosing between atmospheric pressure chemical ionization and electrospray ionization interfaces for the HPLC/MS analysis of pesticides: Analytical Chemistry, v. 73, no. 22, p. 5441-5449, doi:10.1021/ac010506f.

Bastian, K.C., Thurman, E.M., and Rebich, R.A., 1998,

Comparison of enzyme-linked immunoassay with gas chromatography/mass spectrometry for analysis of the cotton herbicide fluometuron, in 28th Mississippi Water Resources Conference, Proceedings, Raymond, Mississippi, April 7-8, 1998: Starkville, Miss., Mississippi State University, p. 45-55.

Schraer, S.M., Shaw, D.R., Boyette, M., Coupe, R.H., and Thurman, E.M., 2000,

Comparison of enzyme-linked immunosorbent assay and gas chromatography procedures for the detection of cyanazine and metolachlor in surface water samples: Journal of Agricultural and Food Chemistry, v. 48, p. 5881-5886.

Meyer, M.T., Scribner, E.A., and Kalkhoff, S.J., 2007,

Comparison of fate and transport of isoxaflutole to atrazine and metolachlor in 10 Iowa rivers: Environmental Science and Technology, v. 41, no. 20, p. 6933-6939, doi:10.1021/es070903t.

Pomes, M.L., Thurman, E.M., and Goolsby, D.A., 1991,

Comparison of microtitre-plate, enzyme-linked immunosorbent assay (ELISA) and gas chromatography/mass spectrometry (GC/MS) for analysis of herbicides in storm runoff samples, in Mallard, G.E., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 572-575.

Stackelberg, P.E., Kauffman, L.J., Baehr, A.L., and Ayers, M.A., 2000,

Comparison of nitrate, pesticides, and volatile organic compounds in samples from monitoring and public-supply wells, Kirkwood-Cohansey aquifer system, southern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 00-4123, 78 p.

Vowinkel, E.F., 1991,

Comparison of relations between shallow ground-water quality and land use in two New Jersey Coastal Plain aquifer systems, in Mallard, G.E., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 307-313.

Squillace, P.J., and Pollock, D.W., 1996,

Comparison of simulated and observed movement of bank-storage water adjacent to the Cedar River, Iowa, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 525-534.

Rutledge, A.T., 1992,

Comparisons of ground-water quality in selected land use areas, central Florida, in Subitzky, S., ed., Selected papers in the hydrologic sciences, 1988-92: U.S. Geological Survey Water-Supply Paper 2340, p. 1-7.

Battaglin, W.A., Furlong, E.T., and Burkhardt, M.R., 2001,

Concentration of selected sulfonylurea, sulfonamide, and imadazolinone herbicides, other pesticides, and nutrients in 71 streams, 5 reservoir outflows, and 25 wells in the midwestern United States, 1998: U.S. Geological Survey Water-Resources Investigations Report 00-4225, 123 p.

Crepeau, K.L., Kuivila, K.M., and Domagalski, J.L., 1996,

Concentrations of dissolved rice pesticides in the Colusa Basin Drain and Sacramento River, California, 1990-92, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 2, p. 711-718.

Scribner, E.A., Battaglin, W.A., Gilliom, R.J., and Meyer, M.T., 2007,

Concentrations of glyphosate, its degradation product, aminomethylphosphonic acid, and glufosinate in ground- and surface-water, rainfall, and soil samples collected in the United States, 2001-06: U.S. Geological Survey Scientific Investigations Report 2007-5122, 112 p.

Scribner, E.A., Goolsby, D.A., Battaglin, W.A., Meyer, M.T., and Thurman, E.M., 2006,

Concentrations of selected herbicides, herbicide degradation products, and nutrients in the lower Mississippi river, Louisiana, April 1991 through December 2003: U.S. Geological Survey Data Series 165, 84 p.

Scribner, E.A., Goolsby, D.A., Thurman, E.M., Meyer, M.T., and Battaglin, W.A., 1996,

Concentrations of selected herbicides, herbicide metabolites, and nutrients in outflow from selected midwestern reservoirs, April 1992 through September 1993: U.S. Geological Survey Open-File Report 96-393, 128 p.

Scribner, E.A., Goolsby, D.A., Thurman, E.M., Meyer, M.T., and Pomes, M.L., 1994,

Concentrations of selected herbicides, two triazine metabolites, and nutrients in storm runoff from nine stream basins in the midwestern United States, 1990-92: U.S. Geological Survey Open-File Report 94-396, 144 p.

Kuivila, K.M., and Foe, C.G., 1995,

Concentrations, transport, and biological effects of dormant spray pesticides in the San Francisco Estuary, California: Environmental Toxicology and Chemistry, v. 14, no. 7, p. 1141-1150.

Smith, C.N., Parrish, R.S., and Brown, D.S., 1991,

Conducting field studies for testing pesticide leaching models: International Journal of Environmental Analytical Chemistry, v. 39, p. 3-21.

Goodwin, K.D., Varner, R.K., Crill, P.M., and Oremland, R.S., 2001,

Consumption of troposheric levels of methyl bromide by C1-compound-utilizing bacteria and comparison to saturation kinetics: Applied Environmental Microbiology, v. 67, no. 12, p. 5437-5443, doi:10.1128/AEM.67.12.5437-5443.2001.

Battaglin, W., Drewes, J., Bruce, B., and McHugh, M., 2007,

Contaminants of emerging concern in the environment: Water Resources Impact, v. 9, no. 3, p. 3-4.

Lerch, R.N., Blanchard, P.E., and Thurman, E.M., 1998,

Contribution of hydroxylated atrazine degradation products to the total atrazine load in midwestern streams: Environmental Science and Technology, v. 32, no. 1, p. 40-48, doi:10.1021/es970447g.

Smith, C.N., Brown, D.S., Parrish, D.S., Asmussen, L.E., and Hicks, D.W., 1990,

Cooperative approach for field validating agricultural chemical transport models, in Proceedings of the American Society of Agronomy, San Antonio, Tex.

Aga, D.S., and Thurman, E.M., 1993,

Coupling solid-phase extraction and enzyme-linked immunosorbent assay for ultratrace determination of herbicides in pristine water: Analytical Chemistry, v. 65, no. 20, p. 2894-2898.

Williams, J.D., and Kolpin, D.W., 2005,

Current topics in agricultural hydrology and water quality--Introduction: Journal of the American Water Resources Association, v. 41, p. 243-244.

Meyer, M.T., Thurman, E.M., and Goolsby, D.A., 1996,

Cyanazine, atrazine, and their metabolites as geochemical indicators of contaminant transport in the Mississippi River, in Meyer, M.T., and Thurman, E.M., eds., Herbicide metabolites in surface water and groundwater: Washington, D.C., American Chemical Society ACS Symposium Series 630, p. 288-303.

Goolsby, D.A., Scribner, E.A., Thurman, E.M., Meyer, M.T., and Pomes, M.L., 1995,

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Evaluating the influence of source basins on downstream water quality in the Mississippi River: Journal of the American Water Resources Association, v. 38, no. 3, p. 803-818.

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A first application of enzyme-linked immunosorbent assay for screening cyclodiene insecticides in ground water, in Van Emon, J.M., Gerlach, C.L., and Johnson, J.C., eds., Environmental immunochemical methods: Washington, D.C., American Chemical Society ACS Symposium Series 646, p. 170-182.

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Formation and transport of deethylatrazine and deisopropylatrazine in surface water: Environmental Science and Technology, v. 28, no. 13, p. 2267-2277, doi:10.1021/es00062a010.

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Ground-water quality in agricultural areas, Anoka sand plain aquifer, east-central Minnesota, 1984-90: U.S. Geological Survey Water-Resources Investigations Report 95-4024, 25 p.

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Ground-water quality in five areas of differing land use in Nassau and Suffolk Counties, Long Island, New York, 1987-88: U.S. Geological Survey Open-File Report 91-180, 67 p.

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Groundwater as a nonpoint source of atrazine and deethylatrazine in a river during base flow conditions: Water Resources Research, v. 29, no. 6, p. 1719-1729, 93WR00290, doi:10.1029/93WR00290.

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Groundwater vulnerability--Interactions of chemical and site properties: The Science of the Total Environment, v. 299, p. 131-143, doi:10.1016/S0048-9697(02)00270-X.

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Herbicide and degradate flux in the Yazoo River Basin: International Journal of Environmental Analytical Chemistry, v. 85, no. 15, p. 1127-1140, doi:10.1080/03067310500273351.

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Herbicide concentrations in Midwest reservoirs (plus a self-study examination to earn continuing education credit): Crop Decisions, v. 42, no. 3, p. 5-8.

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Herbicide concentrations in the Mississippi River Basin--the importance of chloroacetanilide herbicide degradates: The Science of the Total Environment, v. 321, no. 1-3, p. 189-199, doi:10.1016/j.scitotenv.2003.09.006.

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Herbicide interchange between a stream and the adjacent alluvial aquifer: Environmental Science and Technology, v. 28, no. 13, p. 2336-2344, doi:10.1021/es00062a018.

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Herbicide metabolites in surface water and groundwater--Introduction and overview, in Meyer, M.T., and Thurman, E.M., eds., Herbicide metabolites in surface water and groundwater: Washington, D.C., American Chemical Society ACS Symposium Series 630, p. 1-15.

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Herbicide metabolites in surface water and groundwater: American Chemical Society ACS Symposium Series 630, 318 p.

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Herbicide transport in rivers--Importance of hydrology and geochemistry in nonpoint-source contamination: Environmental Science and Technology, v. 26, no. 3, p. 538-545, doi:10.1021/es00027a015.

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Herbicide transport in the Cedar River, Iowa--Importance of hydrology and geochemistry in nonpoint-source contamination, in Mallard, G.E., and Ragone, S.E., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Phoenix, Arizona, September 26-30, 1988: U.S. Geological Survey Water-Resources Investigations Report 88-4220, p. 635.

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Herbicides and degradates in shallow aquifers of Illinois - Spatial and temporal trends: Journal of the American Water Resources Association, v. 41, no. 3, p. 537-547, doi:10.1111/j.1752-1688.2005.tb03753.x.

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Herbicides and herbicide degradates in shallow ground water and the Cedar River near a municipal well field, Cedar Rapids, Iowa, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 2 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, p. 289-300.

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Herbicides and herbicide degradation products in upper midwest agricultural streams during August base-flow conditions: Journal of Environmental Quality, v. 32, p. 1025-1035.

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Herbicides and metabolites in surface water, rainwater, and ground water in the midwestern United States--Proceedings of 209th ACS National Meeting, in, Anaheim, California, April 2-7, 1995: p. 278-281.

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Herbicides and nitrate in near-surface aquifers of the Mid-Continent United States: U.S. Geological Survey Water-Supply Paper 2413, 34 p.

Eckhardt, D.A.V., Kappel, W.M., Coon, W.F., and Phillips, P.J., 1999,

Herbicides and their metabolites in Cayuga Lake and its tributaries, New York, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 2 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, p. 395-403.

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Herbicides and their metabolites in rainfall--Origin, transport, and deposition patterns across the midwestern and northeastern United States, 1990-1991: Environmental Science and Technology, v. 31, no. 5, p. 1325-1333, doi:10.1021/es960847o.

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Herbicides and transformation products in surface waters of the midwestern United States: Journal of the American Water Resources Association, v. 39, no. 4, p. 743-756, doi:10.1111/j.1752-1688.2003.tb04402.x.

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Herbicides in Midwestern reservoir outflows, 1992-93: U.S. Geological Survey Fact Sheet FS-134-98, 4 p.

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Herbicides in ground and surface water in the Midcontintental United States--A research plan, in Annual meeting of the Agricultural Research Institute--Emerging priorities for agriculutral research in the 1990's, Washington, D.C., October 12-14, 1988: p. 55-67.

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Herbicides in ground water of the Midwest--A regional study of shallow aquifers, 1991-94: U.S. Geological Survey Fact Sheet FS-076-98, 4 p.

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Herbicides in rain fall across the Midwestern and Northeastern United States, 1990-91: U.S. Geological Survey Fact Sheet FS-181-97, 4 p.

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Herbicides in rivers and streams of the Upper Midwestern United States, in The Proceedings of the 46th Annual Meeting of the Upper Mississippi River Conservation Committee, Bettendorf, Iowa, March 13-15, 1990: p. 99-106.

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Herbicides in streams--Midwestern United States, in ASE Irrigation and Drainange Engineering Conference, Proceedings, Honolulu, Hawaii, July 22-26, 1991: p. 17-23.

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Herbicides in surface waters of the Midwestern United States--The effect of spring flush: Environmental Science and Technology, v. 25, no. 10, p. 1794-1796, doi:10.1021/es00022a018.

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Herbicides in the Mississippi River and its major tributaries, April-June 1991, in Proceedings of the 24th Annual Meeting, Mississippi River Research Consortium, LaCrosse, Wisconsin, April 30-May 1, 1992: LaCrosse, Wisconsin, Mississippi River Research Consortium, Inc., p. 18-19.

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A high-performance liquid chromatography-based screening method for the analysis of atrazine, alachlor, and ten of their transformation products, in Meyer, M.T., and Thurman, E.M., eds., Herbicide metabolites in surface water and groundwater: Washington, D.C., American Chemical Society ACS Symposium Series 630, p. 34-42.

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Hydrodynamics of California's Sacramento-San Joaquin Delta, and the collection of flow data for the tracking of pesticides, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 2, p. 695-698.

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Hydrogeologic and water-quality data used to characterize the Management Systems Evaluation Area near Princeton, Minnesota: U.S. Geological Survey Open-File Report 94-337, 45 p.

Delin, G.N., Landon, M.K., Nelson, K.J., Wanty, R.B., Healy, R.W., Olsen, H.W., Böhlke, J.K., Schroyer, B.R., and Capel, P.D., 1997,

Hydrogeologic and water-quality data used to evaluate the effects of focused recharge ground-water quality near Princeton, Minnesota, 1991-95: U.S. Geological Survey Open-File Report 97-21, 30 p.

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Hydrogeologic research on agrichemicals in the Midcontinental United States, in Water Quality Workshop for Eastern Europe, Poznan, Poland, Proceedings, September 23-26, 1991: p. 22.

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Hydrogeologic, water-quality and land-use data for the reconnaissance of herbicides and nitrate in near-surface aquifers of the Midcontinental United States: U.S. Geological Survey Open-File Report 93-114, 61 p.

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Hydrogeologic, well-construction, and land-use factors that can affect the evaluation of regional ground-water quality, in Regional characterization of water quality: International Association of Hydrological Sciences Publication 182, p. 69-77.

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Hydrogeology and water quality at the Management Systems Evaluation Area near Piketon, Ohio: U.S. Geological Survey Water-Resources Investigations Report 95-4139, 117 p.

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Hydrologic data from the lower Cedar River Basin, Iowa, 1989-1991: U.S. Geological Survey Open-File Report 94-711-W, 116 p.

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Hydrologic research at the Princeton, Minnesota Management Systems Evaluation Area: U.S. Geological Survey Open-File Report 92-107, 2 p.

Aga, D.S., Thurman, E.M., Yockel, M.E., Zimmerman, L.R., and Williams, T.D., 1996,

Identification of a new sulfonic acid metabolite of metolachlor in soil: Environmental Science and Technology, v. 30, no. 2, p. 592-597, doi:10.1021/es9503600.

Ferrer, I., Thurman, E.M., and Barcelo, D., 1997,

Identification of ionic chloroacetanilide-herbicide metabolites in surface water and groundwater by HPLC/MS using negative ion spray: Analytical Chemistry, v. 69, no. 22, p. 4547-4553, doi:10.1021/ac9704671.

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Identification of methyl halide-utilizing genes in strain IMB-1, a methyl bromide-utilizing bacterium suggests a high degree of conservation of methyl halide-specific genes in gram-negative bacteria: Applied and Environmental Microbiology, v. 67, no. 4, p. 1,959-1,963, doi:10.1128/AEM.67.4.1959-1963.2001.

Lerch, R.N., Ferrer, I., Thurman, E.M., and Zablotowicz, R.M., 2003,

Identification of trifluralin metabolites in soil using ion-trap LC/MS/MS, in Ferrer, I., and Thurman, E.M., eds., Liquid Chromatography/Mass Spectrometry, MS/MS and Time-of-Flight MS--Analysis of Emerging Contaminants: American Chemical Society Symposium Series 850, p. 291-310.

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Immunoassay as a screening tool for triazine herbicides in streams--comparison with gas chromatographic-mass spectrometric methods, in Vanderlaan, M., Stanker, L.H., Watkins, B.E., and Roberts, D.E., eds., Immunoassays for Trace Chemical Analysis--Monitoring toxic chemicals in humans, food, and the environment: Washington, D.C., American Chemical Society ACS Symposium Series 451, p. 86-99.

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Immunochemical technology for environmental applications: American Chemical Society ACS Symposium Series 657, 396 p.

Kolpin, D.W., 2000,

Importance of the Mississippi River Basin for investigating agricultural--chemical contamination of the hydrologic cycle: The Science of the Total Environment, v. 248, no. 2-3, p. 71-72, doi:10.1016/S0048-9697(99)00530-6.

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Input, flux, and persistence of six select pesticides in San Francisco Bay: International Journal of Environmental Analytical Chemistry, v. 87, no. 13, p. 897-911, doi:10.1080/03067310701619014.

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Integrated assessment of hypoxia in the northern Gulf of Mexico: National Science and Technology Council Committee on Environment and Natural Resources, Washington, D.C., 58 p.

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Integrated hydrologic research at the Northern Corn Belt Sand-Plain Management System Evaluation Area, Minnesota, in Mallard, G.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 214-218.

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Interagency research and technical integration, in Information exchange on models and data needs relating to the impact of agricultural practices on water quality--Workshop Proceedings, Reston, Virginia, February 5-8, 1990: U.S. Geological Survey, Office Water Data Coordination, p. 11-12.

Vargo, J.D., Lee, E.A., and Fuhrman, J.D., 2003,

Interlaboratory comparison and validation of methods for chloroacetanilide and chloroacetamide solid degradates in environmental waters, in Ferrer, I., and Thurman, E.M., eds., Liquid Chromatography-Mass Spectrometry, MS/MS and Time-of-Flight MS--Analysis of emerging contaminants: American Chemical Society Symposium Series 850, p. 273-290.

Dombrowski, T.R., Wilson, G.S., and Thurman, E.M., 1998,

Investigation of anion-exchange and immunoaffinity particle-loaded membranes for the isolation of charged organic analytes from water: Analytical Chemistry, v. 70, no. 9, p. 1969-1978, doi:10.1021/ac971081t.

Costanzo, S.D., Watkinson, A.J., Murby, E.J., Kolpin, D.W., and Sandstrom, M.W., 2007,

Is there a risk associated with the insect repellent DEET (N,N-diethyl-m-toluamide) commonly found inaquatic environments?: Science of the Total Environment, v. 384, no. 1-3, p. 214-220, doi:10.1016/j.scitotenv.2007.05.036.

Pomes, M.L., Holub, D.F., Aga, D.S., and Thurman, E.M., 1996,

Isocratic separation of alachlor ethanesulfonic acid, alachlor oxoacetic acid, and hydroxyatrazine by reversed-phase liquid chromatography, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 393-400.

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Isolation of multiple classes of pesticides from large-volume water samples using solid phase extraction cartridges, in Mallard, G.E., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 530-533.

Battaglin, W.A., Kendall, C., Chang, C.C.Y., Silva, S.R., and Campbell, D.H., 2001,

Isotopic and chemical composition of inorganic and organic water-quality samples from the Mississippi River Basin, 1997-98: U.S. Geological Survey Water-Resources Investigations Report 01-4095, 57 p.

Kendall, C., Battaglin, W.A., Cabana, G., Chang, C.C., Silva, S.R., Porter, S.D., Goolsby, D.A., Campbell, D.H., Hooper, R.P., and Schmitt, C.J., 1999,

Isotopic tracing of nitrogen sources and cycling in the Mississippi River Basin, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 2 of 3--Contamination of Hydrologic Systems and Related Ecosystems: U.S. Geological Survey Water-Resources Investigations Report 99-4018B, p. 339-343.

Larson, S.J., Capel, P.D., and VanderLoop, A.G., 1995,

Laboratory and quality assurance protocols for the analysis of herbicides in ground water from the Management Systems Evaluation Area, Princeton, Minnesota: U.S. Geological Survey Water-Resources Investigations Report 95-4178, 18 p.

Schaefer, J.E., Goodwin, K.D., MacDonald, I., Murrell, J.C., and Oremland, R.S., 2002,

Leisingera methylohalidivorans, gen. nov., sp. nov., a marine methylotroph that grows on methyl bromide: International Journal of Systematic and Evolutionary Microbiology, v. 52, p. 851-859, doi:10.1099/ijs.0.01960-0.

Lee, E.A., Zimmerman, L.R., Bhullar, B.S., and Thurman, E.M., 2002,

Linker-assisted immunoassay and liquid chromatography/mass spectrometry for the analysis of glyphosate: Analytical Chemistry, v. 74, no. 19, p. 4937-4943, doi:10.1021/ac020208y.

Foreman, W.T., and DeGiacomo, W.G., 1991,

Literature review of vapor pressure data for some chlorinated triazine and acetamide herbicides, in Mallard, G.E., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water-Resources Investigations Report 91-4034, p. 223-226.

Mueller, D.K., Ruddy, B.C., and Battaglin, W.A., 1997,

Logistic model of nitrate in streams of the upper-midwestern United States: Journal of Environmental Quality, v. 26, no. 5, p. 1223-1230.

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Long-term changes in concentrations and flux of nitrogen in the Mississippi River basin, USA: Hydrological Processes, v. 15, no. 7, p. 1209-1226, doi:10.1002/hyp.210.

Soenksen, P.J., Hatfield, J.L., and Baker, J.L., 1992,

Management systems evaluation area--Iowa, Walnut Creek Watershed: U.S. Geological Survey Open-File Report 92-167, 2 p.

Hatfield, J.L., Anderson, J.L., Alberts, E.E., Prato, T., Watts, D.G., Ward, A., Delin, G.N., and Swank, R., 1993,

Management systems evaluation areas--An overview, in Agricultural Research to Protect Water Quality--Proceedings of the Conference, Minneapolis, Minn., February 21-24, 1993: Ankeny, Iowa, Soil and Water Conservation Society, p. 1-15.

Goodwin, K.D., Lidstrom, M.E., and Oremland, R.S., 1997,

Marine bacterial degradation of brominated methanes: Environmental Science and Technology, v. 31, no. 11, p. 3188-3192, doi:10.1021/es970165g.

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Measurement of concentrations of alachlor and its ethanesulfonic acid metabolite in water by solid-phase extraction and enzyme-linked immunosorbent assay, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 385-392.

Oremland, R.S., Connell, T.L., and Miller, L.G., 2000,

Method for enhancing oxidation of methyl bromide with strain IMB-1 (ATCC200197) during agricultural fumigations: U.S. Patent No. 6,013,254.

Meyers, W.J., and Kuivila, K.M., 1996,

Method for estimating the activity of carbofuran-degrading microorganisms in environmental samples, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 2, p. 719-723.

Parrish, R.S., and Smith, C.N., 1990,

A method for testing whether model predictions fall within a prescribed factor of true values, with an application to pesticide leaching: Ecological Modeling, v. 51, p. 59-72.

Crepeau, K.L., Baker, L.M., and Kuivila, K.M., 2000,

Method of analysis and quality assurance practices for determination of pesticides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry at the U.S. Geological Survey California District organic chemistry laboratory, 1996-1999: U.S. Geological Survey Open-File Report 00-229, 19 p.

Zimmerman, L.R., Strahan, A.P., and Thurman, E.M., 2001,

Method of analysis and quality-assurance practices by the U.S. Geological Survey Organic Geochemistry Research Group--Determination of four selected mosquito insecticides and a synergist in water using liquid-liquid extraction and gas chromatography/mass spectrometry: U.S. Geological Survey Open-File Report 01-273, 11 p.

Zimmerman, L.R., and Thurman, E.M., 1999,

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