Kansas Water Science Center
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Movement of Atrazine and Deethylatrazine Through a Midwestern ReservoirBy J.D. Fallon, D.P. Tierney, and E.M. ThurmanAbstractThe three-diemnsional visualization of atrazine and deethylatrazine in a reservoir was determined by five "snapshots" over a one-year period using immunoassay analyses, confirmed by gas chromatography-mass spectrometry and visualized with a three-dimensional computer program. The surveys were conducted in Perry Lake in Kansas and showed that spring runoff laden with triazine herbicides entered the reservoir and did not mix immediately. Concentrations varied threefold between the inlet and the public water supply intakes located at the opposite end of the reservoir. The concentration range in the outflow varied much less than the concentration in the reservoir because of mixing throughout the season near the dam and outflow. A major conclusion from the study was that multiple analyses by a low-cost immunoassay technique coupled with computer visualization software gave a good three-dimensional view of the mass of herbicide present in a drinking water reservoir. Additional information about the Organic Geochemistry Research Laboratory can be found at: http://ks.water.usgs.gov/studies/reslabFallon, J.D., Tierney, D.P., and Thurman, E.M., 2002, Movement of atrazine and deethylatrazine through a midwestern reservoir: Journal of the American Water Works Association, v. 94, no. 11, p. 54-66. |
U.S. Department of the Interior |
U.S. Geological Survey
URL: /pubs/abstracts/fallon.awwa.v94.html
Page Contact Information: GS-W-KS_info@usgs.gov
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The USGS has collected hydrologic information in Kansas since 1895 with the first USGS Cooperative
Water Program funding agreement for 6 streamflow gages with the Kansas Water Board. USGS collects streamflow
and gage-height data; reservoir content; water-quality and water-quantity data; suspended-sediment data;
and groundwater levels. Hydrologic studies are conducted on national, regional, statewide, and local levels.
The USGS in Kansas works cooperatively with 31 Federal, State, and local agencies, such as the Kansas Water Office, the U.S.Army Corps of Engineers, and the City of Wichita