D.C. Circuit upholds 2015 ozone primary NAAQS

摘要

Two challenges filed from opposite directions against the EPA’s 2015 primary or health-based National Ambient Air Quality Standards (NAAQS) for Ozone were denied by a panel of the U.S. Court of Appeals for the D.C. Circuit. At one end, environmental and health advocacy groups argued that the standard was insufficiently protective of children. At the other end, industry and state petitioners said the standard was too stringent and not adequately justified by the science the EPA presented.