Fine Particle Concentrations for Counties with Monitors
Based on Air Quality Data from 2019 - 2021

This information is provided for illustrative purposes only and is not intended to project or predict the outcome of
any forthcoming designations process. Future area designations (attainment/nonattainment) will not be based on
these data, but likely on monitoring data collected between 2021 and 2024.

I I Does not meet a proposed annual primary fine particle (PM2.5) standard of 9.0 |jg/m3

] Does not meet a proposed annual primary fine particle (PM2.5) standard of 10.0 |jg/m3

State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Alabama

Baldwin

7.6



Alabama

Clay

7.0



Alabama

DeKalb

7.5



Alabama

Etowah

8.2



Alabama

Jefferson

11.0

No

Alabama

Madison

7.3



Alabama

Mobile

8.0



Alabama

Montgomery

8.2



Alabama

Morgan

7.3



Alabama

Russell

9.3

No

Alabama

Tuscaloosa

7.7



Alaska

Anchorage

6.7



Alaska

Fairbanks North Star

13.2

Yes

Alaska

Juneau

5.4



Alaska

Matanuska-Susitna

5.2



Arizona

La Paz

3.8



Arizona

Maricopa

9.8

No

Arizona

Pima

5.0



Arizona

Pinal

13.0

Yes

Arizona

Santa Cruz

10.0

No

Arizona

Yuma

8.8



Arkansas

Arkansas

7.6



Arkansas

Crittenden

8.0



Arkansas

Polk

8.1



Arkansas

Pulaski

9.0



Arkansas

Washington

7.7



California

Alameda

8.8



California

Butte

11.4

No

California

Calaveras

8.9



California

Colusa

10.4

No


-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

California

Contra Costa

9.3

Yes

California

Fresno

15.3

Yes

California

Humboldt

7.4



California

Imperial

11.0

Yes

California

Inyo

8.4



California

Kern

17.8

Yes

California

Kings

15.9

Yes

California

Lake

6.3



California

Los Angeles

13.0

Yes

California

Madera

13.0

Yes

California

Marin

7.3



California

Mendocino

9.2

No

California

Merced

11.9

Yes

California

Monterey

7.0



California

Nevada

9.7

No

California

Orange

11.1

Yes

California

Placer

10.4

Yes

California

Plumas

16.5

Yes

California

Riverside

13.9

Yes

California

Sacramento

11.1

Yes

California

San Benito

6.5



California

San Bernardino

14.2

Yes

California

San Diego

9.6

No

California

San Francisco

8.5



California

San Joaquin

11.8

Yes

California

San Luis Obispo

7.7



California

San Mateo

7.6



California

Santa Barbara

7.6



California

Santa Clara

10.3

Yes

California

Santa Cruz

7.1



California

Shasta

9.5

No

California

Siskiyou

10.5

No

California

Solano

9.7

Yes

California

Stanislaus

13.0

Yes

California

Sutter

13.1

No

California

Tehama

9.8

No

California

Tulare

17.8

Yes

California

Ventura

7.9




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Colorado

Arapahoe

6.4



Colorado

Boulder

9.0



Colorado

Denver

10.2

No

Colorado

Douglas

7.0



Colorado

El Paso

5.6



Colorado

Larimer

7.5



Colorado

Mesa

5.8



Colorado

Rio Blanco

8.6



Colorado

Weld

9.5

No

Connecticut

Fairfield

8.1



Connecticut

Hartford

7.5



Connecticut

Litchfield

5.1



Connecticut

New Haven

8.2



Connecticut

New London

6.9



District Of
Columbia

District of Columbia

8.8



Florida

Alachua

7.2



Florida

Brevard

7.5



Florida

Broward

9.2

No

Florida

Duval

8.6



Florida

Escambia

9.2

No

Florida

Lee

7.4



Florida

Leon

7.4



Florida

Miami-Dade

7.1



Florida

Palm Beach

6.8



Florida

Pinellas

7.8



Florida

Polk

8.2



Florida

Sarasota

7.6



Florida

Seminole

7.3



Florida

Volusia

8.1



Georgia

Bibb

9.0



Georgia

Chatham

9.3

No

Georgia

Clarke

9.4

No

Georgia

Clayton

8.6



Georgia

Cobb

8.6



Georgia

Coffee

6.9



Georgia

DeKalb

8.8



Georgia

Dougherty

9.5

No


-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Georgia

Fulton

9.6

No

Georgia

Glynn

7.7



Georgia

Hall

9.0



Georgia

Houston

9.4

No

Georgia

Lowndes

8.0



Georgia

Muscogee

8.6



Georgia

Richmond

11.1

No

Georgia

Washington

9.2

No

Hawaii

Hawaii

2.7



Hawaii

Honolulu

3.7



Hawaii

Kauai

3.1



Hawaii

Maui

3.7



Idaho

Ada

7.3



Idaho

Benewah

10.2

No

Idaho

Franklin

6.5



Idaho

Lemhi

9.8

No

Idaho

Shoshone

10.6

No

Illinois

Champaign

7.8



Illinois

Cook

10.4

No

Illinois

Hamilton

8.8



Illinois

Jersey

8.0



Illinois

Kane

8.9



Illinois

Macon

9.4

No

Illinois

Madison

10.2

No

Illinois

McHenry

8.4



Illinois

McLean

9.0



Illinois

Peoria

8.7



Illinois

Rock Island

8.7



Illinois

Saint Clair

9.7

No

Illinois

Sangamon

8.2



Illinois

Will

9.9

No

Indiana

Bartholomew

7.1



Indiana

Clark

7.5



Indiana

Delaware

8.4



Indiana

Dubois

8.8



Indiana

Elkhart

8.3



Indiana

Greene

7.9



Indiana

Hamilton

9.8

No


-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Indiana

Henry

7.7



Indiana

Howa rd

7.3



Indiana

Lake

9.7

No

Indiana

La Porte

8.1



Indiana

Madison

8.8



Indiana

Marion

12.0

No

Indiana

Monroe

7.9



Indiana

Porter

8.2



Indiana

Spencer

8.2



Indiana

St. Joseph

9.2

No

Indiana

Tippecanoe

8.9



Indiana

Vanderburgh

9.1

No

Indiana

Vigo

9.1

No

Indiana

Whitley

8.0



Iowa

Black Hawk

8.1



Iowa

Clinton

8.9



Iowa

Johnson

7.9



Iowa

Lee

8.3



Iowa

Linn

8.3



Iowa

Montgomery

6.9



Iowa

Muscatine

8.3



Iowa

Palo Alto

7.1



Iowa

Polk

7.6



Iowa

Pottawattamie

8.3



Iowa

Scott

8.7



Iowa

Van Buren

7.3



Iowa

Woodbury

8.1



Kansas

Neosho

9.3

No

Kansas

Sumner

9.2

No

Kentucky

Bell

8.5



Kentucky

Boyd

7.9



Kentucky

Campbell

7.8



Kentucky

Carter

5.9



Kentucky

Christian

8.9



Kentucky

Fayette

8.1



Kentucky

Hardin

7.7



Kentucky

Jefferson

10.5

No

Kentucky

McCracken

9.2

No


-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Kentucky

Perry

7.2



Kentucky

Pike

6.9



Kentucky

Pulaski

7.8



Kentucky

Warren

8.3



Louisiana

Caddo

9.9

No

Louisiana

Calcasieu

7.1



Louisiana

East Baton Rouge

8.6



Louisiana

Iberville

7.9



Louisiana

Jefferson

7.6



Louisiana

Lafayette

7.9



Louisiana

Orleans

7.7



Louisiana

Ouachita

7.3



Louisiana

Rapides

7.4



Louisiana

St. Bernard

7.7



Louisiana

Tangipahoa

7.5



Louisiana

Terrebonne

7.2



Louisiana

West Baton Rouge

8.8



Maine

Androscoggin

5.5



Maine

Aroostook

4.4



Maine

Cumberland

7.1



Maine

Hancock

3.2



Maine

Oxford

5.1



Maine

Penobscot

4.4



Maryland

Baltimore

7.9



Maryland

Baltimore (City)

7.5



Maryland

Cecil

6.7



Maryland

Dorchester

5.6



Maryland

Garrett

5.3



Maryland

Harford

6.9



Maryland

Howa rd

7.1



Maryland

Kent

5.4



Maryland

Montgomery

6.4



Maryland

Prince George's

6.4



Maryland

Washington

7.2



Massachusetts

Berkshire

7.6



Massachusetts

Bristol

6.6



Massachusetts

Essex

6.0



Massachusetts

Franklin

7.6




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Massachusetts

Hampden

8.5



Massachusetts

Hampshire

6.0



Massachusetts

Middlesex

6.8



Massachusetts

Plymouth

7.5



Massachusetts

Suffolk

7.9



Massachusetts

Worcester

8.4



Michigan

Allegan

6.7



Michigan

Bay

5.9



Michigan

Genesee

6.8



Michigan

Ingham

8.0



Michigan

Kalamazoo

8.5



Michigan

Kent

8.7



Michigan

Lenawee

8.4



Michigan

Macomb

7.7



Michigan

Missaukee

7.6



Michigan

Oakland

7.8



Michigan

Ottawa

8.6



Michigan

St. Clair

7.9



Michigan

Washtenaw

8.5



Michigan

Wayne

11.5

No

Minnesota

Anoka

6.8



Minnesota

Becker

7.1



Minnesota

Beltrami

6.6



Minnesota

Carlton

2.8



Minnesota

Cass

7.3



Minnesota

Cook

3.3



Minnesota

Crow Wing

5.1



Minnesota

Dakota

7.6



Minnesota

Hennepin

8.0



Minnesota

Lake

4.8



Minnesota

Lyon

6.2



Minnesota

Olmsted

6.3



Minnesota

Ramsey

7.6



Minnesota

Saint Louis

5.4



Minnesota

Scott

6.4



Minnesota

Stearns

6.8



Minnesota

Wright

6.8



Mississippi

Bolivar

8.6




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Mississippi

DeSoto

8.4



Mississippi

Forrest

9.4

No

Mississippi

Hancock

8.3



Mississippi

Harrison

9.2

No

Mississippi

Hinds

10.1

No

Mississippi

Jackson

8.4



Missour



Buchanan

8.2



Missour



Cass

6.5



Missour



Cedar

7.2



Missour



Clay

6.2



Missour



Jackson

7.9



Missour



Jefferson

7.4



Missour



Saint Louis

7.9



Missour



St. Louis City

9.2

No

Montana

Fergus

5.0



Montana

Flathead

7.1



Montana

Gallatin

3.0



Montana

Lewis and Clark

8.5



Montana

Lincoln

13.3

No

Montana

Missoula

9.3

No

Montana

Phillips

5.5



Montana

Powder River

7.5



Montana

Ravalli

6.5



Montana

Richland

5.0



Montana

Silver Bow

7.0



Nebraska

Douglas

7.6



Nebraska

Lancaster

6.6



Nebraska

Sarpy

8.1



Nebraska

Washington

6.9



Nevada

Carson City

8.3



Nevada

Clark

10.0

No

Nevada

Douglas

8.8



Nevada

Washoe

9.7

No

New Hampshire

Belknap

4.2



New Hampshire

Cheshire

6.2



New Hampshire

Grafton

5.1



New Hampshire

Hillsborough

3.5



New Hampshire

Rockingham

5.7




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

New Jersey

Atlantic

6.5



New Jersey

Camden

9.4

No

New Jersey

Essex

8.6



New Jersey

Hunterdon

7.6



New Jersey

Mercer

7.8



New Jersey

Middlesex

7.9



New Jersey

Ocean

6.7



New Jersey

Union

9.0



New Jersey

Warren

7.5



New Mexico

Bernalillo

9.1

No

New Mexico

Dona Ana

8.4



New Mexico

Lea

6.5



New Mexico

Santa Fe

4.3



New Mexico

Taos

5.6



New York

Albany

7.4



New York

Bronx

8.3



New York

Chautauqua

6.0



New York

Erie

7.2



New York

Essex

3.2



New York

Monroe

6.6



New York

Onondaga

6.2



New York

Queens

7.0



New York

Steuben

5.8



North Carolina

Buncombe

5.9



North Carolina

Catawba

8.3



North Carolina

Cumberland

7.6



North Carolina

Davidson

8.7



North Carolina

Durham

7.6



North Carolina

Forsyth

8.8



North Carolina

Guilford

7.0



North Carolina

Johnston

7.6



North Carolina

Mecklenburg

9.1

No

North Carolina

Mitchell

5.7



North Carolina

Montgomery

7.8



North Carolina

New Hanover

4.1



North Carolina

Pitt

6.3



North Carolina

Swain

6.5



North Carolina

Wake

8.1




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

North Dakota

Billings

4.2



North Dakota

Burke

5.4



North Dakota

Burleigh

6.5



North Dakota

Cass

7.9



North Dakota

Dunn

5.3



North Dakota

McKenzie

4.8



North Dakota

Mercer

5.7



North Dakota

Oliver

6.2



North Dakota

Ward

5.9



Ohio

Allen

6.6



Ohio

Athens

6.2



Ohio

Clark

9.0



Ohio

Cuyahoga

9.5

No

Ohio

Franklin

9.1

No

Ohio

Hamilton

11.0

No

Ohio

Lake

6.5



Ohio

Lawrence

7.7



Ohio

Medina

7.1



Ohio

Montgomery

9.6

No

Ohio

Preble

8.2



Ohio

Stark

9.5

No

Ohio

Summit

8.7



Ohio

Trumbull

7.4



Oklahoma

Carter

8.7



Oklahoma

Cleveland

10.3

No

Oklahoma

Comanche

8.1



Oklahoma

Dewey

7.7



Oklahoma

Kay

9.7

No

Oklahoma

Oklahoma

10.1

No

Oklahoma

Pittsburg

8.7



Oklahoma

Sequoyah

7.9



Oklahoma

Tulsa

9.1

No

Oregon

Crook

10.4

No

Oregon

Harney

11.1

No

Oregon

Jackson

13.0

No

Oregon

Josephine

11.3

No

Oregon

Klamath

16.2

Yes

Oregon

Lane

11.1

No


-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Oregon

Multnomah

7.9



Oregon

Washington

7.8



Pennsylvania

Allegheny

11.2

Yes

Pennsylvania

Armstrong

8.3



Pennsylvania

Beaver

8.9



Pennsylvania

Berks

8.3



Pennsylvania

Blair

8.6



Pennsylvania

Bradford

7.3



Pennsylvania

Cambria

9.2

No

Pennsylvania

Centre

8.4



Pennsylvania

Chester

8.9



Pennsylvania

Cumberland

8.0



Pennsylvania

Dauphin

9.5

No

Pennsylvania

Delaware

8.6



Pennsylvania

Fayette

7.8



Pennsylvania

Greene

7.0



Pennsylvania

Lancaster

9.5

No

Pennsylvania

Lehigh

8.8



Pennsylvania

Montgomery

8.1



Pennsylvania

Northampton

7.9



Pennsylvania

Philadelphia

8.9



Pennsylvania

Susquehanna

6.7



Pennsylvania

Tioga

6.2



Pennsylvania

Washington

8.6



Pennsylvania

Westmoreland

7.8



Pennsylvania

York

9.6

No

Rhode Island

Kent

4.6



Rhode Island

Providence

8.2



Rhode Island

Washington

4.5



South Carolina

Charleston

7.1



South Carolina

Chesterfield

7.0



South Carolina

Edgefield

7.5



South Carolina

Florence

7.3



South Carolina

Greenville

8.3



South Carolina

Lexington

7.8



South Carolina

Richland

7.2



South Carolina

Spartanburg

8.1



South Carolina

York

7.2




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

South Dakota

Brookings

5.1



South Dakota

Codington

7.4



South Dakota

Custer

3.6



South Dakota

Hughes

3.7



South Dakota

Jackson

4.6



South Dakota

Pennington

7.0



Tennessee

Blount

6.9



Tennessee

Davidson

9.1

No

Tennessee

Dyer

7.0



Tennessee

Hamilton

8.7



Tennessee

Knox

9.1

No

Tennessee

Lawrence

6.3



Tennessee

Loudon

6.9



Tennessee

Maury

6.5



Tennessee

McMinn

7.3



Tennessee

Putnam

6.6



Tennessee

Roane

7.1



Tennessee

Shelby

8.6



Tennessee

Sullivan

6.6



Tennessee

Sumner

7.3



Texas

Bexar

8.7



Texas

Bowie

9.6

No

Texas

Brewster

5.4



Texas

Cameron

9.7

No

Texas

Dallas

9.1

No

Texas

Ector

7.4



Texas

El Paso

8.9



Texas

Galveston

7.7



Texas

Harris

11.1

No

Texas

Hidalgo

10.6

No

Texas

Jefferson

8.3



Texas

Lubbock

6.0



Texas

Maverick

7.8



Texas

Nueces

8.6



Texas

Orange

8.2



Texas

Potter

5.6



Texas

Tarrant

9.2

No

Texas

Travis

9.5

No


-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Texas

Webb

10.4

No

Utah

Cache

7.6



Utah

Davis

7.0



Utah

Duchesne

7.0



Utah

Iron

5.4



Utah

Salt Lake

9.9

Yes

Utah

Tooele

6.8



Utah

Uintah

6.3



Utah

Utah

7.2



Utah

Washington

5.3



Vermont

Bennington

5.8



Vermont

Chittenden

6.9



Vermont

Rutland

7.6



Virgin Islands

St Croix

6.2



V

rginia

Albemarle

6.9



V

rginia

Arlington

7.5



V

rginia

Bristol City

6.6



V

rginia

Charles

6.4



V

rginia

Chesterfield

6.4



V

rginia

Fairfax

8.7



V

rginia

Frederick

7.6



V

rginia

Hampton City

6.4



V

rginia

Henrico

7.4



V

rginia

Loudoun

6.9



V

rginia

Lynchburg City

6.1



V

rginia

Norfolk City

6.8



V

rginia

Richmond City

7.8



V

rginia

Roanoke

7.1



V

rginia

Rockingham

6.8



V

rginia

Salem City

6.5



V

rginia

Virginia Beach City

6.8



Washington

Clark

8.9



Washington

King

8.3



Washington

Kitsap

5.9



Washington

Kittitas

7.5



Washington

Okanogan

12.4

No

Washington

Pierce

7.9



Washington

Snohomish

8.7




-------
State

County

2019-2021 Annual
Design Value (ug/m3)

Currently in PM2.5
Nonattainment Area

Washington

Whatcom

4.7



Washington

Yakima

11.8

No

West V

rginia

Berkeley

8.4



West V

rginia

Brooke

9.1

No

West V

rginia

Cabell

7.2



West V

rginia

Harrison

7.1



West V

rginia

Kanawha

7.5



West V

rginia

Marshall

9.3

No

West V

rginia

Monongalia

7.0



West V

rginia

Ohio

7.8



West V

rginia

Wood

7.5



Wisconsin

Ashland

5.6



Wisconsin

Brown

7.8



Wisconsin

Dane

8.3



Wisconsin

Dodge

8.0



Wisconsin

Eau Claire

8.2



Wisconsin

Forest

5.9



Wisconsin

Grant

8.8



Wisconsin

Kenosha

7.7



Wisconsin

La Crosse

7.9



Wisconsin

Milwaukee

8.9



Wisconsin

Outagamie

8.1



Wisconsin

Ozaukee

7.0



Wisconsin

Sauk

7.7



Wisconsin

Taylor

6.8



Wisconsin

Vilas

5.3



Wisconsin

Waukesha

9.4

No

Wyoming

Fremont

2.4



Wyoming

Laramie

4.1



Wyoming

Park

4.3



Wyoming

Sheridan

6.3



Wyoming

Sublette

3.5



Wyoming

Teton

4.4




-------