EPA Favors Stricter Air Quality Standards
The Environmental Protection Agency (EPA) wants to tighten the national annual limit on particulate matter (PM) pollution, according to its proposed updates to the National Ambient Air Quality Standards (NAAQS) for Fine Particulate Matter. Part of the EPA’s plan is to lower the primary (health-based) annual PM2.5 standard down to 9.0-10.0 µg/m3, compared with the […]