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Analytical Method Development for Alachlor Esa and Other Acetanilide Herbicide Degradation Products

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Abstract:In 1998, USEPA published a Drinking Water Contaminant Candidate List (CCL) of 50 chemicals and 10 microorganisms. "Alachlor ESA and other acetanilide herbicide degradation products" is listed on the the 1998 CCL. Acetanilide degradation products are generally more water soluble and mobile, thus there is greater potential for these degradates to be found in groundwater and surface water. Ethanessulfonic acid (ESA) and oxanilic acid (OA) degradates of the parent herbicides have been reported in US Midwestern surface and ground waters in concentrations as high as 20 micrograms/L. Before a regulatory determination can be made concerning these chemicals, EPA must assess the extent of their occurrence in public water systems. Thus, a reliable EPA occurrence method is needed.
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Citation:Shoemaker, J. A. Analytical Method Development for Alachlor Esa and Other Acetanilide Herbicide Degradation Products. Presented at 49th ASMS Conference on Mass Spectrometry and Allied Topics, Chicago, IL, May 27-31, 2001.
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Contact: Mary P. O'Bryant - (919)-541-4871 or obriant.mary@epa.gov
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Division: Microbiological & Chemical Exposure Assessment Division
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Branch: Chemical Exposure Research Branch
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Product Type: Abstrct/Oral
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Presented: 05/27/2001
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Related Entries:
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Bullet Item Analytical Method Development for Alachlor Esa and Other Acetanilide Pesticide Transformation Products
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Last Updated on Monday, October 22, 2007
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