NAS Backs EPA’s NAAQS ‘Causality’ Method But Seeks More Transparency

A National Academies of Sciences, Engineering and Medicine (NAS) panel is backing EPA’s contested method for determining whether air pollution “causes” adverse health and environmental effects, which the agency uses in national ambient air quality standards (NAAQS) reviews, but the panel calls for greater transparency in the agency’s application of its technique. In the eagerly anticipated report released Oct. 14 , the panel finds that EPA’s “causality framework” is suitable for the task of assessing causation, which is a vital...