Results of Analyses of the Fungicide Chlorothalonil, Its Degradation Products, and Other Selected Pesticides at 22 Surface-Water Sites in Five Southern States, 2003-04
Open-file rept. 2006-2007
GEOLOGICAL SURVEY RESTON VA
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In accordance with the mission of the U. S. Geological Survey USGS Toxic Substances Hydrology Program, a pesticide study was conducted during 2003-2004 to determine the occurrence of the fungicide chlorothalonil and its degradation products at 22 surface-water sites in the Southern States. Water-quality samples were collected during the peanut-growing season June-September in 2OO3. During the peanut growing season in 2004, samples were collected after large storms. An analytical method was developed at the USGS Organic Geochemistry Research Laboratory in Lawrence, Kansas to measure chlorothalonil and its degradation products by liquid chromatographymass spectrometry LCMS.
- Water Pollution and Control
- Pesticides Pollution and Control