NEW RESEARCH MAY ADD TO PRESSURE ON EPA TO STRENGTHEN PM PROPOSAL

Two major new studies suggesting that EPA's proposal for tightening its fine particulate matter (PM2.5) standard is too weak may increase pressure on the agency to strengthen the plan, as the agency's administrator is again renewing his commitment to use the best available science in a final rule. The studies have been published as EPA is conducting a broader review over the ways it considers scientific evidence for this and other national ambient air quality standards (NAAQS). One of the...