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Designated PM-2.5 (1997, 2006, 2012) Nonattainment Areas

As of October 01, 2015
Mouse over the No. Ctys to see the area name; click on them to see the associated counties. [Split] in No. Ctys column explained here.

  2012 PM-2.5
Nonattainment Areas
2006 PM-2.5
Nonattainment Areas
1997 PM-2.5
Nonattainment Areas
State(s) General Area Name
(see footnote)
2010
Pop.
No.
Ctys
Category/
Class
Annual
Design
Value
(2012-2014)
2010
Pop.
No.
Ctys
Category/
Class
24-hr
Design
Value
(2006-2008)
2010
Pop.
No.
Ctys
Category/
Class
Annual
Design
Value
(2001-2003)
AK Fairbanks         87,456 1 Mod 41        
AZ Nogales         30,622 1 Mod 40        
AZ West Central Pinal         52,314 1 Mod 48        
CA Chico         217,626 1 Mod 69        
CA Imperial County 154,061 1   14.3 154,061 1 Mod 36        
CA Los Angeles-South Coast Air Basin 15,716,242 4   14.6 15,716,242 4 Mod 49 15,716,335 4 Mod 27.8
CA Plumas County 5,843 1   14.1                
CA Sacramento Metro         2,206,060 5 Mod 56        
CA San Francisco-Bay Area         6,971,067 9 Mod 36        
CA San Joaquin Valley 3,842,165 8   19.7 3,842,165 8 Mod 70 3,842,165 8 Ser 21.8
GA Atlanta                 5,265,299 22 Mod 18.0
ID Shoshone County 7,497 1   13.1                
KY-IN Louisville                 1,018,904 5 Mod 16.9
MO-IL St. Louis                 2,572,706 9 Mod 17.5
MT Libby                 9,429 1 Mod 16.2
OH Cleveland-Akron-Elyria 1,581,478 2   12.4                
OR Klamath Falls         46,969 1 Mod 46        
OR Oakridge         4,261 1 Mod 40        
PA Harrisburg-Lebanon-Carlisle 133,568 1   12.7                
PA Pittsburgh-New Castle         20,789 1 Mod 53 20,789 1 Mod 21.2
   1,223,348 1   13.0 2,142,981 8 Mod 36 2,142,981 8 Mod 21.2
PA-DE-NJ-MD Philadelphia-Wilmington-Trenton 558,979 1   12.3                
TN Knoxville         681,523 5 Mod see Design
Value Notes
681,523 5 Mod 16.8
TN-GA-AL Chattanooga                 470,921 4
[Split]
Mod 16.1
UT Provo         517,537 1 Mod 44        
UT Salt Lake City         1,665,137 5 Mod 48        
UT-ID Logan         125,198 2 Mod 36        

Area Name:

The "State(s) Area Name" column contains a common or general name for the nonattainment areas on the row, but may not reflect the exact name of any area on the row. This column cannot be exact since the nonattainment area for one pollutant may not contain the same counties, cities, or states as the nonattainment area for another pollutant on the same row. to see the area name or click on them to see the associated counties. The abbreviations listed in the "State(s)" column reflect all states identified in row. However, some states on a row may be nonattainment for some pollutants and not for others in the general area.

Split Area:

'Split' in the No. Ctys column indicates that the multi-state area has states that have been redesignated but the area does not become a maintenance area until all states in the area are redesignated. The whole area population is displayed in this report. Clicking on a "Split" No. Ctys will display information for the state(s) that have not been redesignated.


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