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CASAC Attacks On EPA’s PM Science Analysis Jeopardize NAAQS Review

March 08, 2019
EPA’s Clean Air Scientific Advisory Committee (CASAC) is condemning the agency’s approach to assessing health risks of particulate matter (PM) and is seeking a new draft of a health study underpinning the ongoing review of the PM ambient air limit, a time-consuming step that jeopardizes EPA’s plan to accelerate its review of the limit. In a March 7 draft letter to EPA Administrator Andrew Wheeler, the panel broadly attacks the agency’s draft Integrated Science Assessment (ISA) -- a key document...

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