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FATE AND EFFECTS OF THE ENANTIOMERS OF CHIRAL ENVIRONMENTAL POLLUTANTS
GARRISON, A. W. FATE AND EFFECTS OF THE ENANTIOMERS OF CHIRAL ENVIRONMENTAL POLLUTANTS. Presented at Chirality 2007 - 19th International Symposium on Chirality, San Diego, CA, July 08 - 11, 2007.
To determine the environmental occurrences, fate, and effects of the enantiomers of selected chiral pesticides and other chiral pollutants.
Enantiomers, the mirror image isomers of chiral compounds, are known to be selective in their interaction with other chiral molecules, including enzymes and other biochemicals. This holds true for pesticides, about 25% of which are chiral molecules, and other chiral environmental pollutants. Considerable research has shown, for example, that chiral pesticides are often degraded selectively by microbes, leading to differential environmental persistence of the enantiomers. Enantioselectivity is also observed in various organisms after pesticide bioaccumulation. In addition, effects of pesticide enantiomers are often different. This presentation will show examples of enantioselective fate and effects of chiral pesticides and other chiral pollutants, factors that should be taken into account in risk assessment.
Record Details:Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL EXPOSURE RESEARCH LABORATORY
ECOSYSTEMS RESEARCH DIVISION
PROCESSES & MODELING BRANCH