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American Chemical Society's Weekly Presspac -- June 17, 2009

about 700 more added each year. Over the next ten years, EPA plans to increasingly rely on so-called toxicity-based pathways to evaluate these substances.

This approach involves using human cell cultures to screen newly marketed chemicals for adverse effects. The new tests will produce results in a fraction of the time now required with animal studies.

But the switch won't be easy, the C&EN article notes. Some experts question the validity of these next-generation tests. Meanwhile, new technologies for predicting toxicity may emerge and complement conventional animal tests, according to the article.

ARTICLE #5 EMBARGOED FOR 9 A.M., EASTERN TIME, June 22, 2009 "Next-Generation Risk Assessment"

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American Chemical Society's Weekly Presspac -- June 17, 2009
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