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Pesticide registration - Breakdown Products

 

Breakdown products of parent compounds are common and can account for a majority of the mass of pesticides detected. These breakdown products, which are mostly non-regulated, can have similar or greater toxicities than parent compounds. A NAWQA study found that in the Iowa River, for example, breakdown products of some herbicides are commonly 10 times the concentration of the parent compounds. On the basis of these findings, city officials in Cedar Rapids, Iowa, require monitoring and analysis of herbicide breakdown products in the city water supplies.

Selected Triazine and Aceanilide Pesticides and Metabolites in the Iowa River at Wapello, IA

 













 

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 U.S. Department of the Interior, U.S. Geological Survey
 Contact for NAWQA: nawqa_whq@usgs.gov
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