Energy & environment · 30/11/2010

EPA Proposes Approval and Disapproval of California's Plan to Reduce Fine Particulate Matter in San Joaquin Valley

The Environmental Protection Agency (EPA) is proposing to approve parts of California's plan to reduce fine particulate matter (PM2.5) in the San Joaquin Valley, while disapproving other aspects, in an effort to meet the national ambient air quality standards set in 1997.