EPA Approves Air Quality Plan for Washington DC Area

Summary

The Environmental Protection Agency (EPA) has approved the District of Columbia's 2002 base year emissions inventory for fine particulate matter (PM 2.5) to meet the 1997 National Ambient Air Quality Standard (NAAQS) for the Washington DC-MD-VA nonattainment area, as part of the state's State Implementation Plan (SIP) revision submitted on April 2, 2008.