1997 PM_2.5 Standards — Region 3 State Designations

Note: EPA no longer updates this information, but it may be useful for historical purposes. See the PM Designations Home Page for more recent information about PM Designations.

Boundary Designations for the 1997 PM_2.5 Standard - EPA Region 3

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

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.

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1997 PM2.5 Standards — Region 3 State Designations

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1997 PM_2.5 Standards — Region 3 State Designations