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Inside EPA - 11/01/2019

Divided CASAC Spars On PM Review But Leans Toward Retaining NAAQS

October 24, 2019
Over the advice of agency staff, a majority of EPA’s Clean Air Scientific Advisory Committee (CASAC) appears ready to recommend that officials retain existing particulate matter (PM) standards, but some members are questioning how to interpret the latest data and whether they can or should complete their review by the agency’s tight deadline. At an Oct. 24 meeting in Cary, NC, four of the seven CASAC members spoke in favor of retaining the national ambient air quality standards (NAAQS) for...


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