Summary Nonattainment Area Population 

Exposure Report 

As of July 20, 2012 

Ordered by state code(s) 

All Carbon Monoxide areas were redesignated to maintenance areas as of September 27, 2010. 

The NO2 nonattainment area became a maintenance area on September 22, 1998. 

State(s)

General 

Area Name

(see note)

2010 Population in 1000s (area count)

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2

Lead

(2008) Lead

AK Anchorage 219(1)

AK Fairbanks 87(1)

AK Juneau 14(1)

AL Birmingham 858(1) 858(1)

AL Troy 2(1)

AZ Ajo 9(1)

AZ 

Douglas/Paul 

Spur (Cochise 

County)

17(1)

AZ Hayden/Miami 26(2) 5(1)

AZ Nogales 31(1) 30(1)

AZ Phoenix-Mesa 3,850(1) 3,849(1) 3,853(1)

AZ Rillito (Pima 

County) 1(1)

AZ West Central 

Pinal 52(1) 283(1)

AZ Yuma 101(1)

CA 

Amador and 

Calaveras Cos 

(Central 

Mountain Cos)

46(1) 84(1)

CA Chico 220(1) 220(1) 218(1)

CA Imperial 

County 175(1) 175(1) 154(1) 147(1)

CA 

Los AngelesSouth Coast 

Air Basin

15,723(3) 15,719(1) 15,716(1) 15,716(1) 15,799(1) 9,437(1)

CA 

Mariposa and 

Tuolumne Cos 

(Southern 

Mountain Cos)

18(1) 74(1)

CA Mono County 7(2)

CA Nevada Co. 

(Western 82(1) 82(1)
State(s)

General 

Area Name

(see note)

2010 Population in 1000s (area count)

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2

Lead

(2008) Lead

Part)

CA Owens Valley 7(1)

CA Red Bluff 0(1)

CA Sacramento 

Metro 2,241(1) 2,244(1) 2,206(1) 1,419(1)

CA San Diego 3,095(1) 3,093(1)

CA 

San 

Francisco-Bay 

Area

6,973(1) 6,971(1) 6,971(1)

CA San Joaquin 

Valley 3,938(2) 3,938(2) 3,842(1) 3,842(1) 126(1)

CA 

San Luis 

Obispo-Paso 

Robles

2(1)

CA Searles Valley 4(1)

CA 

Southeast 

Desert 

Modified 

AQMA

1,294(2) 1,294(2) 495(2)

CA Ventura 

County 823(1) 823(1)

CA Yuba City 0(1) 165(1)

CO 

DenverBoulderGreeley-Ft. 

CollinsLoveland Area

3,330(1) 3,330(1)

CT Greater 

Connecticut 1,629(1) 1,629(1)

DC-MDVA Washington 5,136(1) 5,136(1) 5,047(1)

FL 

Tampa-St. 

PetersburgClearwater4(1)

GA Atlanta 4,753(1) 5,260(1) 5,265(1)

GA Macon 158(1)

GA Rome 96(1)

GU Piti Power 

Plant 1(1)

GU Tanguisson 

Power Plant 1(1)

IA Council Bluffs 13(1)

ID Bonner 41(1)
State(s)

General 

Area Name

(see note)

2010 Population in 1000s (area count)

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2

Lead

(2008) Lead

County 

(Sandpoint)

ID Pocatello 1(1)

ID Shoshone 

County 11(2)

IL-IN Chicago-GaryLake County 9,180(1) 9,050(1) 9,050(1) 36(1)

IN Indianapolis 1,532(1)

IN Muncie 1(1)

KS Salina 0(1)

KY-IN Louisville 1,019(1)

LA Baton Rouge 733(1)

MA Springfield 

(W. Mass) 824(1)

MA-NH 

BostonWorcesterManchester

17(1) 6,464(2)

MD Baltimore 2,663(1) 2,663(1) 2,663(1)

MD-WV HagerstownMartinsburg 252(1)

MI Belding 2(1)

MI Detroit-Ann 

Arbor 4,705(1) 4,705(1)

MN MinneapolisSt. Paul 9(1)

MO Iron 0(1)

MO-IL St. Louis 2,571(1) 2,594(1) 2,573(1) 44(2) 3(1)

MT Billings/Laurel 7(1)

MT Butte 34(1)

MT 

Columbia Falls 

(Flathead 

County)

5(1)

MT East Helena 3(1) 3(1)

MT 

Kalispell 

(Flathead 

County)

18(1)

MT Lame Deer 1(1)

MT Libby 9(1) 3(1)

MT Missoula 60(1)

MT Polson (Lake 

County) 4(1)
State(s)

General 

Area Name

(see note)

2010 Population in 1000s (area count)

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2

Lead

(2008) Lead

MT Ronan (Lake 

County) 3(1)

MT Thompson 

Falls 1(1)

MT 

Whitefish 

(Flathead 

County)

6(1)

NC-SC CharlotteGastonia 1,901(1) 1,969(1)

NM Anthony 3(1)

NV Las Vegas 1,919(1) 1,951(1)

NV Reno 421(1)

NY 

AlbanySchenectadyTroy

970(1)

NY BuffaloNiagara Falls 1,136(1)

NY 

Essex County; 

Whiteface 

Mountain

0(1)

NY Jamestown 135(1) 135(1)

NY Jefferson 

County 116(1)

NY Poughkeepsie 770(1)

NY Rochester 1,114(1)

NY-NJCT 

New York-N. 

New JerseyLong Island20,217(1) 20,217(1) 20,404(1) 20,404(1) 1,586(1) 109(1)

OH Bellefontaine 6(1)

OH CantonMassillon 376(1) 376(1)

OH ClevelandAkron-Lorain 2,882(1) 2,687(1) 2,710(1) 8(1)

OH Columbus 1,755(1) 1,652(1)

OH DaytonSpringfield 835(1)

OH Delta 3(1)

OH-KYIN CincinnatiHamilton 1,989(1)

OH-WV SteubenvilleWeirton 124(1) 124(1)

OR Eugene- 195(1)
State(s)

General 

Area Name

(see note)

2010 Population in 1000s (area count)

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2

Lead

(2008) Lead

Springfield

OR Klamath Falls 47(1)

OR Oakridge 4(1) 4(1)

PA 

AllentownBethlehemEaston

712(1) 647(1)

PA 

HarrisburgLebanonCarlisle

1,072(1) 637(1)

PA Johnstown 157(1) 157(1)

PA Lancaster 519(1) 519(1) 519(1)

PA PittsburghBeaver Valley 2,356(1) 2,356(1) 2,164(2) 2,164(2) 5(1) 18(1)

PA Reading 411(1) 411(1) 49(2)

PA York 435(1)

PA-DENJ-MD

PhiladelphiaWilmingtonTrenton

7,634(2) 7,797(1) 5,798(1) 5,798(1)

PR Arecibo 32(1)

RI Providence 

(all of RI) 1,053(1)

TN 

Johnson CityKingsportBristol

2(1)

TN Knoxville 573(1) 682(1) 682(1)

TN Memphis 1,127(1)

TN-GAAL Chattanooga 471(1)

TX Dallas-Fort 

Worth 6,280(1) 6,221(1) 4(1)

TX El Paso 649(1)

TX 

HoustonGalvestonBrazoria

5,892(1) 5,892(1)

UT Ogden 83(1)

UT Provo 518(1) 517(1)

UT Salt Lake City 1,665(1) 1,030(1) 1,030(1)

UT Tooele County 58(1)

UT-ID Logan 125(1)

WA SeattleTacoma 540(1)
State(s)

General 

Area Name

(see note)

2010 Population in 1000s (area count)

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2

Lead

(2008) Lead

WI MilwaukeeRacine 1,918(1) 1,533(1)

WI Sheboygan 116(1) 116(1)

WV Charleston 249(1) 249(1)

WV-KYOH HuntingtonAshland 343(1)

WV-OH ParkersburgMarietta 150(1)

WV-OH Wheeling 148(1)

WY Sheridan 17(1)

WY Upper Green 

River Basin 11(1)

2010 Population (area count) by Pollutant

Total Estimated 2010 

Population in 

Nonattainment 

Across All Criteria 

Pollutants: 159,086

8-Hr 

Ozone

(2008)

8-Hr 

Ozone

(1997)

PM-2.5

(2006)

PM-2.5

(1997) PM-10 SO2 Lead(2008) Lead

123,004

( 46)

129,214

( 43)

74,316

( 32)

91,050

( 35)

29,202

( 46)

1,217

( 9)

9,669

( 21)

5

( 2)

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.