EPA Draws Criticism For Failure To Regulate PM2.5 Precursors

Some states and activists are criticizing EPA's proposal not to require states to mandate controls of ammonia and volatile organic compound (VOC) emissions when they draft their air quality plans for meeting the agency's existing fine particulate matter (PM2.5) standard, arguing these emissions should be regulated as precursors to PM2.5 pollution. Regulation of these pollutants may affect industries including animal feeding operations, chemical plants, pulp and paper manufacturers, automobile manufacturers, and the iron and steel industry, among several other industry...