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PM-2.5 (2006) Designated Area Area/State/County Report
PM-2.5 (2006) Designated Area Area/State/County Report
Data is current as of March 31, 2024| Allentown, PA (Moderate - Maintenance) | |
| PENNSYLVANIA (Region III) | |
| Lehigh County | |
| Northampton County | |
| Birmingham, AL (Former Subpart 1 - Maintenance) | |
| ALABAMA (Region IV) | |
| Jefferson County | |
| Shelby County | |
| Walker County (P) | |
| Canton-Massillon, OH (Former Subpart 1 - Maintenance) | |
| OHIO (Region V) | |
| Stark County | |
| Charleston, WV (Former Subpart 1 - Maintenance) | |
| WEST VIRGINIA (Region III) | |
| Kanawha County | |
| Putnam County | |
| Chico, CA (Moderate - Maintenance) | |
| CALIFORNIA (Region IX) | |
| Butte County (P) | |
| Cleveland-Akron-Lorain, OH (Former Subpart 1 - Maintenance) | |
| OHIO (Region V) | |
| Cuyahoga County | |
| Lake County | |
| Lorain County | |
| Medina County | |
| Portage County | |
| Summit County | |
| Detroit-Ann Arbor, MI (Former Subpart 1 - Maintenance) | |
| MICHIGAN (Region V) | |
| Livingston County | |
| Macomb County | |
| Monroe County | |
| Oakland County | |
| St. Clair County | |
| Washtenaw County | |
| Wayne County | |
| Fairbanks, AK (Serious - Nonattainment) | |
| ALASKA (Region X) | |
| Fairbanks North Star Borough (P) | |
| Harrisburg-Lebanon-Carlisle-York, PA (Moderate - Maintenance) | |
| PENNSYLVANIA (Region III) | |
| Cumberland County | |
| Dauphin County | |
| Lebanon County | |
| York County | |
| Imperial County, CA (Moderate - Nonattainment) | |
| CALIFORNIA (Region IX) | |
| Imperial County (P) | |
| Johnstown, PA (Moderate - Maintenance) | |
| PENNSYLVANIA (Region III) | |
| Cambria County | |
| Indiana County (P) | |
| Klamath Falls, OR (Moderate - Nonattainment) | |
| OREGON (Region X) | |
| Klamath County (P) | |
| Knoxville-Sevierville-La Follette, TN (Moderate - Maintenance) | |
| TENNESSEE (Region IV) | |
| Anderson County | |
| Blount County | |
| Knox County | |
| Loudon County | |
| Roane County (P) | |
| Lancaster, PA (Moderate - Maintenance) | |
| PENNSYLVANIA (Region III) | |
| Lancaster County | |
| Liberty-Clairton, PA (Moderate - Nonattainment) | |
| PENNSYLVANIA (Region III) | |
| Allegheny County (P) | |
| Lincoln Borough, Clairton City, Glassport Borough, Liberty Borough, Port Vue Borough. | |
| Logan, UT-ID (Moderate - Maintenance) | |
| IDAHO (Region X) | |
| Franklin County (P) | |
| UTAH (Region VIII) | |
| Cache County (P) | |
| Los Angeles-South Coast Air Basin, CA (Serious - Nonattainment) | |
| CALIFORNIA (Region IX) | |
| Los Angeles County (P) | |
| Orange County | |
| Riverside County (P) | |
| San Bernardino County (P) | |
| Milwaukee-Racine, WI (Former Subpart 1 - Maintenance) | |
| WISCONSIN (Region V) | |
| Milwaukee County | |
| Racine County | |
| Waukesha County | |
| New York-N. New Jersey-Long Island, NY-NJ-CT (Former Subpart 1 - Maintenance) | |
| CONNECTICUT (Region I) | |
| Fairfield County | |
| New Haven County | |
| NEW JERSEY (Region II) | |
| Bergen County | |
| Essex County | |
| Hudson County | |
| Mercer County | |
| Middlesex County | |
| Monmouth County | |
| Morris County | |
| Passaic County | |
| Somerset County | |
| Union County | |
| NEW YORK (Region II) | |
| Bronx County | |
| Kings County | |
| Nassau County | |
| New York County | |
| Orange County | |
| Queens County | |
| Richmond County | |
| Rockland County | |
| Suffolk County | |
| Westchester County | |
| Nogales, AZ (Moderate - Maintenance) | |
| ARIZONA (Region IX) | |
| Santa Cruz County (P) | |
| Oakridge, OR (Moderate - Maintenance) | |
| OREGON (Region X) | |
| Lane County (P) | |
| Philadelphia-Wilmington, PA-NJ-DE (Moderate - Maintenance) | |
| DELAWARE (Region III) | |
| New Castle County | |
| NEW JERSEY (Region II) | |
| Burlington County | |
| Camden County | |
| Gloucester County | |
| PENNSYLVANIA (Region III) | |
| Bucks County | |
| Chester County | |
| Delaware County | |
| Montgomery County | |
| Philadelphia County | |
| Pittsburgh-Beaver Valley, PA (Moderate - Maintenance) | |
| PENNSYLVANIA (Region III) | |
| 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 | |
| Provo, UT (Serious - Nonattainment) | |
| UTAH (Region VIII) | |
| Utah County (P) | |
| Sacramento, CA (Moderate - Nonattainment) | |
| CALIFORNIA (Region IX) | |
| El Dorado County (P) | |
| Placer County (P) | |
| Sacramento County | |
| Solano County (P) | |
| Yolo County (P) | |
| Salt Lake City, UT (Serious - Nonattainment) | |
| UTAH (Region VIII) | |
| Box Elder County (P) | |
| Davis County | |
| Salt Lake County | |
| Tooele County (P) | |
| Weber County (P) | |
| San Francisco Bay Area, CA (Moderate - Nonattainment) | |
| CALIFORNIA (Region IX) | |
| Alameda County | |
| Contra Costa County | |
| Marin County | |
| Napa County | |
| San Francisco County | |
| San Mateo County | |
| Santa Clara County | |
| Solano County (P) | |
| Sonoma County (P) | |
| San Joaquin Valley, CA (Serious - Nonattainment) | |
| CALIFORNIA (Region IX) | |
| Fresno County | |
| Kern County (P) | |
| Kings County | |
| Madera County | |
| Merced County | |
| San Joaquin County | |
| Stanislaus County | |
| Tulare County | |
| Steubenville-Weirton, OH-WV (Former Subpart 1 - Maintenance) | |
| OHIO (Region V) | |
| Jefferson County | |
| WEST VIRGINIA (Region III) | |
| Brooke County | |
| Hancock County | |
| Tacoma, WA (Moderate - Maintenance) | |
| WASHINGTON (Region X) | |
| Pierce County (P) | |
| West Central Pinal, AZ (Moderate - Nonattainment) | |
| ARIZONA (Region IX) | |
| Pinal County (P) | |
| Yuba City-Marysville, CA (Moderate - Maintenance) | |
| CALIFORNIA (Region IX) | |
| Sutter County | |
| Yuba County (P) | |
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