Kansas Water Science Center
Current Methods of Analysis for Selected Herbicides, Insecticides, Antibiotics, Taste-and-Odor-Causing Compounds, and Their Degradation ProductsBy E.A. Scribner, E.M. Thurman, M.E. Lindsey, and E.A. LeeU.S. Geological Survey, Lawrence, Kansas L.R. Zimmerman, Center for Research, Inc., Lawrence, Kansas AbstractIn 1987, the Organic Geochemistry Research Group was established at the U.S. Geological Survey (USGS) in Lawrence, Kansas, to investigate the fate, degradation, and transport of agricultural chemicals in surface water, ground water, and precipitation. Since that time, the goals of the research group have been expanded to include: (1) the development of analytical methods, (2) investigation of the occurrence, concentration, and movement of herbicides, insecticides, antibiotics, taste-and-odor-causing compounds, and degradation products in surface water, ground water, and precipitation throughout the United States, and (3) study of the degradation, transport, and fate of agricultural chemicals in the hydrologic system. Accomplishments of the research group include: (1) the development of approved analytical methods; (2) water-quality syurveys, including streams, reservoirs, rainfall, storm runoff, and precipitation, and the results of specific research topics including the Mississippi River flood, changes in atrazine application rates, and wastewater from confined animal feed operations; and (3) documentation of the formation and transport of deethylatrazine in the soil and vadose zone, dissipation of encapsulated herbicides, regional transport of herbicides and their degradation products in surface water, effects of pesticides on frogs, and taste-and-odor-causing compounds related to drinking water and algal production. Special projects have included studies of herbicide use on crops such as corn and cotton, mosquito insecticides applied in New York City, and pharmaceuticals in surface water of the United States. This poster summarizes the analytical methods used by USGS at their laboratory in Lawrence. Additional information about the Organic Geochemistry Research Laboratory can be found at: http://ks.water.usgs.gov/studies/reslab/Scribner, E.A., Thurman, E.M., Lindsey, M.E., Lee, E.A., and Zimmerman, L.R., 2001, Current methods of analysis for selected herbicides, insecticides, antibiotics, taste-and-odor-causing compounds, and their degradation products [abst.]: in Abstracts of the Eighth Symposium on the Chemistry and Fate of Modern Pesticides, August 21-24, 2001, Copenhagen, Denmark: International Association of Environmental Analytical Chemistry, p 149. To request a paper copy of this article, email: scribner@usgs.gov |