EPA Science Advisors Urge NAAQS Process Revision, Eye New Pollutants

EPA’s Clean Air Scientific Advisory Committee (CASAC) is moving to adopt a recommendation for the agency to return to a more comprehensive process to review federal air standards that would weigh wider policy options and provide more opportunities for revision of key documents, while also calling for EPA to consider limits for new pollutants. At an April 25 meeting, members of the seven-member panel considered a draft letter crafted by committee Chair Elizabeth Sheppard, a University of Washington environmental professor,...