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09/28/2011 03:00 PM EDT Each week we write about the science behind environmental protection. Previous Science Wednesdays. By Paul T. Anastas, Ph.D. A dedicated team of scientists in EPA's Integrated Risk Information System (IRIS) program works to assess the hazards that chemicals pose to human health. The assessments they produce, known as IRIS assessments, are not regulations. However, the information they [...]
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