Meetings

Symposium on the Chemistry and Fate of Modern Pesticides

Scientists, chemists, and hydrologists met under the sponsorship of the International Association of Environmental Analytical Chemistry, the U.S. Geological Survey (USGS), and the U.S. Department of Agriculture's Agricultural Research Service to address topics related to pesticides and endocrine disruption in the environment. USGS researchers gave talks on the fate of agricultural pharmaceuticals and pesticides in the environment, methods to detect agricultural chemicals in water, environmental monitoring programs, and ecotoxicology and endocrine disruption related to agricultural activities. The Seventh Symposium on the Chemistry and Fate of Modern Pesticides was held September 14-16, 1999, in Lawrence, Kansas.

USGS researchers gave the following talks at the meeting:

Pesticide and metabolite concentrations in sediments and surface and ground water found at sites where frog malformations are present in Minnesota, by Perry M. Jones, E. Michael Thurman, Edward Little, Susan Kersten, Judy Helgen, and Elisabeth A. Scribner

Detection of sulfonylurea, sulfonamide, imidazolinone, and other herbicides in Midwestern rivers, reservoirs, and ground water, 1998, by William A. Battaglin, Edward T. Furlong, Mark R. Burkhardt, and John C. Peter

Concentrations and degradation of dissolved pesticides in the San Francisco Bay-Estuary, California, by Kathryn M. Kuivila and Kathryn L. Crepeau

Comparisons of two enzyme-linked immunoassay methods for the analyses of the cotton herbicide fluometuron, by Richard A. Rebich

Attenuation and breakdown of product formation patterns of chloroacetanilide herbicides in aquatic field microcosms, by David W. Graham, Frank deNoyelles Jr., Val. H. Smith, Cynthia Larive, and E.M. Thurman

Pesticides in the air and precipitation of the Mississippi River Valley, by Michael S. Majewski, William T. Foreman, and Donald A. Goolsby

Analysis of sulfonylurea, imidazolinone, sulfonamide herbicides and their degradation products in water samples by high-performance liquid chromatography/electrospray ionization-mass spectrometry, by E.T. Furlong, P.M. Gates, S.L. Werner, and M.R. Burkhardt

Considerations involved with the use of semipermeable membrane devices (SPMDs) for monitoring environmental contaminants, by J.D. Petty, C.E. Orazio, J.N. Huckins, R.W. Gale, J.A. Lebo, J.C. Meadows, and K.R. Echols

Pesticides and their metabolites in wells of Suffolk County, New York, 1998, by P.J. Phillips, D.A. Eckhardt, E.M. Thurman, and S.A. Terracciano

The occurrence of chloroacetanilide and triazine herbicide metabolites in streams in eastern Iowa, by S.J. Kalkhoff and E.M. Thurman

Occurrence and transport of selected herbicides and their metabolites in the Mississippi River at Baton Rouge, Louisiana, by G.M. Clark, D.A. Goolsby, and E.M. Thurman

The occurrence of insecticides in the surface waters of the Mississippi River alluvial plain, by R.H. Coupe and E.M. Thurman

Detection of persistent organic pollutants in part of the Mississippi delta using semipermeable membrane devices, by L.R. Zimmerman, E.M. Thurman, and K.C. Bastian

Changes in herbicide concentrations in Midwestern streams in relation to changes in use, 1989-98, by Elisabeth A. Scribner, William A. Battaglin, and Donald A. Goolsby

Analysis of selected herbicide metabolites in surface and ground water of the United States, by Elisabeth A. Scribner, E.M. Thurman, and Lisa Zimmerman

Determination of ionic chloroacetanalide herbicide metabolites in surface water and ground water by high-performance liquid chromatography-diode array detection and high-performance liquid chromatography/mass spectrometry, by Kenneth A. Hostetler and E.M. Thurman

Herbicides and their metabolites in Cayuga Lake and its tributaries, New York, by David A.V. Eckhardt and Patrick J. Phillips

Concentrations of dissolved pesticides in the Alamo River and the Salton Sea, California, 1996-97, by Kathryn L. Crepeau and Kathryn M. Kuivila

Use of real-time water-quality monitoring and multiple-regression analysis for estimation of atrazine loads in streamflow, by Victoria G. Christensen, Xiaodong Jian, and Andrew C. Ziegler

Occurrence, distribution, and transport of triazine herbicides in southern Louisiana, by Dennis K. Demcheck

Geochemical modes of transport for selected herbicides in the canals of south Florida, by M.T. Meyer, E.M. Thurman, and Ben McPherson

Reduction of triazine and chloroacetanilide concentrations in a public water supply by ozonation, by I.M. Verstraeten, E.M. Thurman, and J.G. Obrist

Surface-water/ground-water interaction-herbicide transport into municipal collector wells, by I.M. Verstraeten, J.D. Carr, G.V. Steele, and E.M. Thurman

Analysis and detection of the herbicide dimethenamid and its ESA metabolite in water, by L.R. Zimmerman, R.J. Schneider, K.A. Hostetler, and E.M. Thurman

More Information

• National Reconnaissance of Emerging Contaminants in the Nation's Stream Waters Investigation
• The Fate of Cotton Pesticides in the Southern United States Investigation

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