Green Buckeye RN

NYT: Study Raises Questions About EPA’s Pesticide Risk-Assessment Scheme
August 21, 2009, 9:05 am
Filed under: News

By SARA GOODMAN of Greenwire
Published: August 19, 2009

University of Pittsburgh researchers exposed nine species of tadpoles to endosulfan — a common pesticide used on cotton, tomatoes, melons, squash and tobacco crops — for up to eight days at levels EPA says are typically found in nature.

After four days, three species seemed unaffected. But four more days after being moved to clean water, 97 percent of leopard frog tadpoles died, as did up to 50 percent of spring peeper and American toad tadpoles.

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