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Summary Nonattainment Area Population Exposure Report

Data is current as of February 29, 2024

Ordered by state(s)
The NO2 nonattainment area became a maintenance area on September 22, 1998. All Carbon Monoxide areas were redesignated to maintenance areas as of September 27, 2010. The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.

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State(s)
General Area Name
(see note)

2010 Population in 1000s (area count)

8-Hour Ozone
(2015)
8-Hour Ozone
(2008)
PM-2.5
(2012)
PM-2.5
(2006)
PM-2.5
(1997)
PM-10
(1987)
SO2
(2010)
SO2
(1971)
Lead
(2008)
Lead
(1978)
AK Fairbanks       87(1)            
AZ Douglas/Paul Spur (Cochise County)           17(1)        
AZ Hayden/Miami           26(2) 20(2) 5(1) 5(1)  
AZ Nogales           30(1)        
AZ Phoenix-Mesa 3,945(1) 3,850(1)       3,853(1)        
AZ Rillito (Pima County)           1(1)        
AZ West Pinal       52(1)   283(1)        
AZ Yuma 87(1)         101(1)        
CA Amador and Calaveras Cos (Central Mountain Cos) 84(2) 46(1)                
CA Chico 220(1) 220(1)                
CA Imperial County 175(1) 175(1) 154(1) 154(1)            
CA Los Angeles-South Coast Air Basin 15,704(3) 15,723(3) 15,716(1) 15,716(1) 15,716(1)       9,437(1)  
CA Mariposa and Tuolumne Cos (Southern Mountain Cos) 74(2) 18(1)                
CA Mono County           0(1)        
CA Nevada County (Western Part) 82(1) 82(1)                
CA Owens Valley           7(1)        
CA Plumas County     6(1)              
CA Sacramento Metro 2,240(1) 2,241(1)   2,206(1)            
CA San Diego 3,077(1) 3,095(1)                
CA San Francisco-Bay Area 6,969(1) 6,973(1)   6,971(1)            
CA San Joaquin Valley 3,937(2) 3,938(2) 3,842(1) 3,842(1) 3,842(1) 126(1)        
CA San Luis Obispo 1(1) 2(1)                
CA Searles Valley           4(1)        
CA Southeast Desert Modified AQMA 1,292(2) 1,294(2)       495(2)        
CA Tuscan Buttes 0(1) 0(1)                
CA Ventura County 821(1) 823(1)                
CA Yuba City 0(1)                  
CO Denver-Boulder-Greeley-Ft. Collins-Loveland 3,331(1) 3,330(1)                
CT Greater Connecticut 1,629(1) 1,629(1)                
DC-MD-VA Washington 5,136(1)                  
GU Piti-Cabras             6(1) 1(1)    
GU Tanguisson Power Plant               1(1)    
IA Muscatine County             30(1)      
ID Pocatello           1(1)        
IL-IN-WI Chicago-Joliet-Napier 9,075(1)                  
IN Fort Wayne-Huntington-Auburn             21(1)      
KS Salina                 0(1)  
KY Henderson-Webster Counties             7(1)      
KY-IN Louisville 876(1)                  
LA Evangeline Parish             0(1)      
LA New Orleans             36(1)      
MA-NH Boston-Worcester-Manchester   17(1)                
MD Baltimore 2,663(1) 2,663(1)         990(1)      
MI Allegan County 47(1)                  
MI Benton Harbor 157(1)                  
MI Detroit-Ann Arbor             306(2)      
MI Muskegon 147(1)                  
MN Minneapolis-St. Paul                 9(1)  
MO Iron, Dent, and Reynolds Counties                 0(1)  
MO New Madrid County             0(1)      
MO-IL St. Louis 2,488(1)           0(1)   5(1) 3(1)
MT Billings/Laurel               7(1)    
MT Lame Deer           1(1)        
MT Polson (Lake County)           4(1)        
MT Ronan (Lake County)           3(1)        
NV Las Vegas 1,892(1)                  
NY Jamestown   135(1)                
NY St. Lawrence County             12(1)      
NY-NJ-CT New York-N. New Jersey-Long Island 20,217(1) 20,217(1)                
OH Canton-Massillon                 6(1)  
OH Cleveland-Akron-Elyria 2,780(1)                  
OR Klamath Falls       47(1)            
PA Clearfield and Indiana Counties             93(1)      
PA Lancaster   519(1)                
PA Pittsburgh-New Castle   2,356(1) 1,223(1) 21(1) 21(1)   142(2) 5(1) 18(1)  
PA Reading   411(1)             49(2)  
PA Warren County             18(1)      
PA-NJ Allentown-Bethlehem-Easton   712(1)                
PA-NJ-DE-MD Philadelphia-Wilmington-Atlantic City 7,437(1) 7,634(2)                
PR Arecibo                 32(1)  
PR Guayama-Salinas             23(1)      
PR San Juan             275(1)      
TN Johnson City-Kingsport-Bristol             15(1)      
TX Dallas-Fort Worth 6,202(1) 6,280(1)                
TX Fairfield             4(1)      
TX Houston-Sugar Land-Baytown 5,773(1) 5,892(1)                
TX Howard County             0(1)      
TX Hutchinson County             15(1)      
TX Mount Pleasant             0(1)      
TX Navarro County             2(1)      
TX San Antonio 1,715(1)                  
TX Tatum             2(1)      
TX-NM El Paso-Las Cruces 813(1)         652(2)        
UT Provo 516(1)     518(1)            
UT Salt Lake City 1,616(1)     1,665(1)       1,030(1)    
UT Tooele County               58(1)    
UT Uinta Basin 47(1)                  
VA Giles County             0(1)      
WA Whatcom County             0(1)      
WI Milwaukee-Racine 1,648(1)                  
WI Sheboygan 68(1)                  
WV-OH Parkersburg-Marietta             4(1)      
WY Upper Green River Basin   11(1)                
  2010 Population in 1000s (area count) by Pollutant
Total Estimated 2010 Population in
Nonattainment Areas (1000's)

Across All Criteria Pollutants: 121,099

8-Hour Ozone
(2015)

8-Hour Ozone
(2008)

PM-2.5
(2012)

PM-2.5
(2006)

PM-2.5
(1997)

PM-10
(1987)

SO2
(2010)

SO2
(1971)

Lead
(2008)

Lead
(1978)

114,981
( 46)

90,288
( 34)

20,942
( 5)

31,280
( 11)

19,579
( 3)

5,605
( 20)

2,022
( 30)

1,106
( 7)

9,561
( 11)

3
( 1)

The Summary Population Exposure Report is a summary of the population living in an area that is in nonattainment for at least one of the NAAQS.

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. 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. A multi-state area with states that have not all been redesignated to maintenance is counted as a nonattainment area until all of the states in the area are redesignated, with the whole area population displayed.


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