Regulation & law · 20/11/2009

EPA Announces Attainment of 1997 Fine Particulate Matter Standard in Three Areas

The Environmental Protection Agency (EPA) has finalized determinations that three areas in West Virginia, Maryland, and Ohio have met the 1997 fine particulate matter (PM 2.5) National Ambient Air Quality Standard (NAAQS), allowing states to suspend certain planning requirements for these areas.