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PM-2.5 (1997) Maintenance Area (Redesignated from Nonattainment) State/Area/County Report
PM-2.5 (1997) Maintenance Area (Redesignated from Nonattainment) State/Area/County Report
Data is current as of October 31, 2024The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m3) is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016. (81 FR 58009)
ALABAMA (Region IV) | |
Birmingham, AL (Former Subpart 1 - Maintenance) | |
Jefferson County | |
Shelby County | |
Walker County (P) | |
Chattanooga, TN-GA-AL (Moderate - Maintenance) | |
Jackson County (P) | |
CONNECTICUT (Region I) | |
New York-N. New Jersey-Long Island, NY-NJ-CT (Former Subpart 1 - Maintenance) | |
Fairfield County | |
New Haven County | |
DELAWARE (Region III) | |
Philadelphia-Wilmington, PA-NJ-DE (Moderate - Maintenance) | |
New Castle County | |
DISTRICT OF COLUMBIA (Region III) | |
Washington, DC-MD-VA (Moderate - Maintenance) | |
District of Columbia | |
GEORGIA (Region IV) | |
Atlanta, GA (Moderate - Maintenance) | |
Barrow County | |
Bartow County | |
Carroll County | |
Cherokee County | |
Clayton County | |
Cobb County | |
Coweta County | |
DeKalb County | |
Douglas County | |
Fayette County | |
Forsyth County | |
Fulton County | |
Gwinnett County | |
Hall County | |
Heard County (P) | |
Henry County | |
Newton County | |
Paulding County | |
Putnam County (P) | |
Rockdale County | |
Spalding County | |
Walton County | |
Chattanooga, TN-GA-AL (Moderate - Maintenance) | |
Catoosa County | |
Walker County | |
Macon, GA (Former Subpart 1 - Maintenance) | |
Bibb County | |
Monroe County (P) | |
Rome, GA (Former Subpart 1 - Maintenance) | |
Floyd County | |
ILLINOIS (Region V) | |
Chicago-Gary-Lake County, IL-IN (Former Subpart 1 - Maintenance) | |
Cook County | |
DuPage County | |
Grundy County (P) | |
Goose Lake and Aux Sable Townships | |
Kane County | |
Kendall County (P) | |
Oswego Township | |
Lake County | |
McHenry County | |
Will County | |
St. Louis, MO-IL (Moderate - Maintenance) | |
Madison County | |
Monroe County | |
Randolph County (P) | |
Baldwin Village | |
St. Clair County | |
INDIANA (Region V) | |
Chicago-Gary-Lake County, IL-IN (Former Subpart 1 - Maintenance) | |
Lake County | |
Porter County | |
Cincinnati-Hamilton, OH-KY-IN (Former Subpart 1 - Maintenance) | |
Dearborn County (P) | |
Lawrenceburg Township | |
Evansville, IN (Former Subpart 1 - Maintenance) | |
Dubois County | |
Gibson County (P) | |
Montgomery Township | |
Pike County (P) | |
Washington Township | |
Spencer County (P) | |
Ohio Township | |
Vanderburgh County | |
Warrick County | |
Indianapolis, IN (Former Subpart 1 - Maintenance) | |
Hamilton County | |
Hendricks County | |
Johnson County | |
Marion County | |
Morgan County | |
Louisville, KY-IN (Moderate - Maintenance) | |
Clark County | |
Floyd County | |
Jefferson County (P) | |
Madison Township | |
KENTUCKY (Region IV) | |
Cincinnati-Hamilton, OH-KY-IN (Former Subpart 1 - Maintenance) | |
Boone County | |
Campbell County | |
Kenton County | |
Huntington-Ashland, WV-KY-OH (Former Subpart 1 - Maintenance) | |
Boyd County | |
Lawrence County (P) | |
Louisville, KY-IN (Moderate - Maintenance) | |
Bullitt County | |
Jefferson County | |
MARYLAND (Region III) | |
Baltimore, MD (Moderate - Maintenance) | |
Anne Arundel County | |
Baltimore County | |
Baltimore city | |
Carroll County | |
Harford County | |
Howard County | |
Martinsburg-Hagerstown, WV-MD (Moderate - Maintenance) | |
Washington County | |
Washington, DC-MD-VA (Moderate - Maintenance) | |
Charles County | |
Frederick County | |
Montgomery County | |
Prince George's County | |
MICHIGAN (Region V) | |
Detroit-Ann Arbor, MI (Former Subpart 1 - Maintenance) | |
Livingston County | |
Macomb County | |
Monroe County | |
Oakland County | |
St. Clair County | |
Washtenaw County | |
Wayne County | |
MISSOURI (Region VII) | |
St. Louis, MO-IL (Moderate - Maintenance) | |
Franklin County | |
Jefferson County | |
St. Charles County | |
St. Louis County | |
St. Louis city | |
MONTANA (Region VIII) | |
Libby, MT (Moderate - Maintenance) | |
Lincoln County (P) | |
NEW JERSEY (Region II) | |
New York-N. New Jersey-Long Island, NY-NJ-CT (Former Subpart 1 - Maintenance) | |
Bergen County | |
Essex County | |
Hudson County | |
Mercer County | |
Middlesex County | |
Monmouth County | |
Morris County | |
Passaic County | |
Somerset County | |
Union County | |
Philadelphia-Wilmington, PA-NJ-DE (Former Subpart 1 - Maintenance) | |
Burlington County | |
Camden County | |
Gloucester County | |
NEW YORK (Region II) | |
New York-N. New Jersey-Long Island, NY-NJ-CT (Former Subpart 1 - Maintenance) | |
Bronx County | |
Kings County | |
Nassau County | |
New York County | |
Orange County | |
Queens County | |
Richmond County | |
Rockland County | |
Suffolk County | |
Westchester County | |
NORTH CAROLINA (Region IV) | |
Greensboro-Winston Salem-High Point, NC (Former Subpart 1 - Maintenance) | |
Davidson County | |
Guilford County | |
Hickory-Morganton-Lenoir, NC (Former Subpart 1 - Maintenance) | |
Catawba County | |
OHIO (Region V) | |
Canton-Massillon, OH (Former Subpart 1 - Maintenance) | |
Stark County | |
Cincinnati-Hamilton, OH-KY-IN (Former Subpart 1 - Maintenance) | |
Butler County | |
Clermont County | |
Hamilton County | |
Warren County | |
Cleveland-Akron-Lorain, OH (Former Subpart 1 - Maintenance) | |
Ashtabula County (P) | |
Ashtabula Township | |
Cuyahoga County | |
Lake County | |
Lorain County | |
Medina County | |
Portage County | |
Summit County | |
Columbus, OH (Former Subpart 1 - Maintenance) | |
Coshocton County (P) | |
Franklin Township | |
Delaware County | |
Fairfield County | |
Franklin County | |
Licking County | |
Dayton-Springfield, OH (Former Subpart 1 - Maintenance) | |
Clark County | |
Greene County | |
Montgomery County | |
Huntington-Ashland, WV-KY-OH (Former Subpart 1 - Maintenance) | |
Adams County (P) | |
Monroe Township, Sprigg Township | |
Gallia County (P) | |
Cheshire Township | |
Lawrence County | |
Scioto County | |
Parkersburg-Marietta, WV-OH (Former Subpart 1 - Maintenance) | |
Washington County | |
Steubenville-Weirton, OH-WV (Former Subpart 1 - Maintenance) | |
Jefferson County | |
Wheeling, WV-OH (Former Subpart 1 - Maintenance) | |
Belmont County | |
PENNSYLVANIA (Region III) | |
Harrisburg-Lebanon-Carlisle, PA (Moderate - Maintenance) | |
Cumberland County | |
Dauphin County | |
Lebanon County | |
Johnstown, PA (Moderate - Maintenance) | |
Cambria County | |
Indiana County (P) | |
Lancaster, PA (Moderate - Maintenance) | |
Lancaster County | |
Philadelphia-Wilmington, PA-NJ-DE (Moderate - Maintenance) | |
Bucks County | |
Chester County | |
Delaware County | |
Montgomery County | |
Philadelphia County | |
Pittsburgh-Beaver Valley, PA (Moderate - Maintenance) | |
Allegheny County (P) | |
Remainder | |
Armstrong County (P) | |
Elderton Borough and Plumcreek and Washington Townships | |
Beaver County | |
Butler County | |
Greene County (P) | |
Monongahela Township | |
Lawrence County (P) | |
Township of Taylor south of New Castle City | |
Washington County | |
Westmoreland County | |
Reading, PA (Moderate - Maintenance) | |
Berks County | |
York, PA (Moderate - Maintenance) | |
York County | |
TENNESSEE (Region IV) | |
Chattanooga, TN-GA-AL (Moderate - Maintenance) | |
Hamilton County | |
Knoxville, TN (Moderate - Maintenance) | |
Anderson County | |
Blount County | |
Knox County | |
Loudon County | |
Roane County (P) | |
VIRGINIA (Region III) | |
Washington, DC-MD-VA (Moderate - Maintenance) | |
Alexandria city | |
Arlington County | |
Fairfax County | |
Fairfax city | |
Falls Church city | |
Loudoun County | |
Manassas Park city | |
Manassas city | |
Prince William County | |
WEST VIRGINIA (Region III) | |
Charleston, WV (Former Subpart 1 - Maintenance) | |
Kanawha County | |
Putnam County | |
Huntington-Ashland, WV-KY-OH (Former Subpart 1 - Maintenance) | |
Cabell County | |
Mason County (P) | |
Graham Tax District | |
Wayne County | |
Martinsburg-Hagerstown, WV-MD (Moderate - Maintenance) | |
Berkeley County | |
Parkersburg-Marietta, WV-OH (Former Subpart 1 - Maintenance) | |
Pleasants County (P) | |
Tax District of Grant | |
Wood County | |
Steubenville-Weirton, OH-WV (Former Subpart 1 - Maintenance) | |
Brooke County | |
Hancock County | |
Wheeling, WV-OH (Former Subpart 1 - Maintenance) | |
Marshall County | |
Ohio County |
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