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Designated PM-2.5 (2006) and PM-2.5 (1997) Nonattainment Areas

As of July 02, 2014

Design Value Notes

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.

  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
24-hr
Design
Value
(2006-2008)
2010
Pop.
No.
Ctys
Category/
Class
Annual
Design
Value
(2001-2003)
AK Fairbanks 87,456 1 Mod 41        
AL-TN-GA Chattanooga         470,921 4 Mod 16.1
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 Mod 36        
CA Los Angeles-South Coast Air Basin 15,716,242 4 Mod 49 15,716,335 4 Mod 27.8
CA Sacramento 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 Mod 70 3,842,165 8 Mod 21.8
CA Yuba CIty-Marysville 164,955 2 Mod 47        
DC-MD-VA Washington         5,047,479 14 Mod 15.8
GA Atlanta         5,265,299 22 Mod 18.0
KY-IN Louisville         1,018,904 5 Mod 16.9
MD Baltimore         2,662,691 6 Mod 16.7
MO-IL St. Louis         2,572,706 9 Mod 17.5
MT Libby         9,429 1 Mod 16.2
OR Klamath Falls 46,969 1 Mod 46        
OR Oakridge 4,261 1 Mod 40        
PA Allentown 647,232 2 Mod 36        
PA Harrisburg-Lebanon-Carlisle 1,072,046 4 Mod 36 637,074 3 Mod 15.8
PA Johnstown 156,923 2 Mod see Design
Value Notes
156,923 2 Mod 15.8
PA Lancaster 519,445 1 Mod 37 519,445 1 Mod 17.0
PA Pittsburgh-Beaver Valley 20,789 1 Mod 53 20,789 1 Mod 21.2
   2,142,981 8 Mod 36 2,142,981 8 Mod 21.2
PA Reading         411,442 1 Mod 16.4
PA York         434,972 1 Mod 17.3
PA-NJ-DE Philadelphia-Wilmington 5,798,152 9
[Split]
Mod 36 5,798,152 9
[Split]
Mod 16.4
TN Knoxville 681,523 5 Mod see Design
Value Notes
681,523 5 Mod 16.8
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        
WA Seattle-Tacoma 539,682 1 Mod 44        
WV-MD Martinsburg - Hagerstown         251,599 2 Mod 16.3

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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