Area Designations for 1997 Fine Particle (PM2.5) Standards
April 2005 ChangesAfter Reviewing 2002 - 2004 Air Quality Data, Twelve Additional Areas now Meet National Air Quality Standards for Fine Particle Pollution
Eight areas previously identified as nonattainment may now be designated as attaining the standards. These areas are comprised of 17 counties and are home to over 5 million people:
|California||San Diego, CA||San Diego|
|West Virginia||Marion, WV||Marion
Four areas identified in December 2004 as "unclassifiable" are now also designated as attainment. These four single-county areas are home to 337,000 people.
|Alabama||DeKalb County, AL||DeKalb|
|Tennessee||McMinn County, TN||McMinn|