EPA Details Plan to Overhaul Chemical Risk Assessments

EPA has released a long-range plan for overhauling the way it prioritizes and conducts chemical risk assessments. The plan implements the recommendations of the federal National Research Council (NRC), a division of National Academy of Sciences (Washington). NRC advised EPA in 2007 to move away from a nearly exclusive use of animal studies toward a focus on toxicity pathways. “This approach is based on the rapidly evolving scientific understanding of how genes, proteins, and small molecules interact to form molecular pathways that maintain cell...

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