L.A. Officials Fear Difficulty, Costs In Meeting EPA’s Proposed PM Standard

Despite California officials’ support for EPA’s proposed fine particulate matter (PM2.5) national ambient air quality standard (NAAQS), Los Angeles regional air regulators are expressing initial fears about the difficulty and costs of trying to attain the more stringent standard, telling governing board members that “control options will be limited and expensive.” “It’s a big challenge for us just to meet the current” annual PM2.5 NAAQS of 12 micrograms per cubic meter (ug/m3), so it will be “very, very difficult for...