EPA COST-EFFECTIVENESS STUDY ON PM CONTROLS FINDS HUGE BENEFITS

A major new EPA study of the benefits of particulate matter (PM) controls suggests that costly air quality regulations -- like the clean air interstate rule and diesel rules -- have almost three times as many benefits as necessary to be considered cost-effective. The finding could give agency officials leeway to argue for strict regulatory requirements because they can justify high costs the regulations may impose on regulated entities. "Air pollution regulations achieving ambient [fine particulate matter] PM2.5 reduction for...