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Area Designations for 1997 Fine Particle (PM2.5) Standards

1997 PM2.5 Standards — Region 3 State Designations

Boundary Designations for the 1997 PM2.5 Standard - EPA Region 3

Map showing PM2.5 designations for 1997 standard for Region 3 Map legend

This table identifies all counties EPA has designated as nonattainment. In some cases EPA designated partial counties. These are identified by a (P). If a county is not listed below, EPA has designated it as unclassifiable/attainment.

State Area Name Counties
Delaware Philadelphia-Wilmington, PA-NJ-DE New Castle
District of Columbia Washington, DC-MD-VA District of Columbia
Maryland* Baltimore, MD Anne Arundel
Baltimore City
Baltimore
Carroll
Harford
Howard
Hagerstown-Martinsburg, MD-WV Washington
Washington, DC-MD-VA Charles
Frederick
Montgomery
Prince George's
Pennsylvania* Harrisburg-Lebanon-Carlisle, PA Cumberland
Dauphin
Lebanon
Johnstown, PA Cambria
Indiana (P)
Lancaster,  PA Lancaster
Philadelphia-Wilmington, PA-NJ-DE Bucks
Chester
Delaware
Montgomery
Philadelphia
Pittsburgh, PA Allegheny (P)
Armstrong (P)
Beaver
Butler
Greene (P)
Lawrence (P)
Washington
Westmoreland 
Pittsburgh-Liberty/Clairton , PA Allegheny (P)
Reading, PA Berks
York,  PA York
Virginia* Washington, DC-MD-VA Alexandria
Arlington
Fairfax
Loudoun
Prince William
Falls Church
Manassas
Manassas Park
Fairfax City
West Virginia* Charleston, WV Kanawha
Putnam
Huntington-Ashland, WV-KY-OH Cabell
Wayne
Mason (P)
Hagerstown- Martinsburg, MD-WV Berkeley
Parkersburg-Marietta, WV-OH Pleasants (P)
Wood
Steubenville-Weirton, OH-WV Brooke
Hancock
Wheeling, WV-OH Marshall
Ohio
*See correspondence related to the April, 2005 supplemental notice for information about changes to designations since the December, 2004 action.

Region 3 Recommendations and EPA Responses

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