projected not to meet an annual primary fine particle standard 

 of 12.0 μg/m3 

2020 Projected

Projected Fine Particle Concentrations 

for Counties with Monitors in 2020 

State County

2020 Projected

Annual Design Value 

(μg/m3

)

Alabama Baldwin 7.4

Alabama Clay 8.0

Alabama Colbert 8.2

Alabama DeKalb 7 9.

Alabama Escambia 9.7

Alabama Etowah 8.9

Alabama Houston 8.6

Alabama Jefferson 11.6

Alabama Madison 8.0

Alabama Mobile 8.0

Al ba ama M t on gomery 9 8.

Alabama Morgan 8.1

Alabama Russell 10.3

Alabama Shelby 8.6

Alabama Tuscaloosa 8.7

Alabama Walker 8.6

Arizona Cochise 7.0

Arizona Coconino 6.6

Arizona Gila 8.5

Arizona Maricopa 10.5

Arizona Pima 5.4

Arizona Pinal 8.6

Arkansas Arkansas 8.8

Arkansas Ashley 9.2

Arkansas Crittenden 8.5

Arkansas Faulkner 9.0

Arkansas Garland 9.1

Arkansas Jackson 8.2

Arkansas Phillips 8.1

Arkansas Polk 8.9

Arkansas Pope 9 7.

Arkansas Pulaski 9.8

Arkansas Sebastian 9.0

Arkansas Union 9.3

Arkansas White 8.6

California Alameda 8.2

California Butte 10.6

California Calaveras 7 0.

California Contra Costa 7.7

California Fresno 11.6

Page 1
State County

2020 Projected 

Annual Design Value 

(μg/m3)

California Humboldt 6.9

California Imperial 12.6

California Inyo 5.8

California Kern 12.7

California Kings 11.8

California Lake 4.6

California Los Angeles 12.3

California Mendocino 6.4

California Merced 12.1

California Monterey 5 9.

California Nevada 6.6

California Orange 9.6

California Placer 8.4

California Plumas 11.2

California Riverside 14.6

California Sacramento 10.3

C lif i California S B it an Benito 5 2.

California San Bernardino 12.6

California San Diego 10.5

California San Francisco 8.0

California San Joaquin 11.0

California San Luis Obispo 6.5

California San Mateo 7.6

California Santa Barbara 8.9

California Santa Clara 9.7

California Santa Cruz 5.7

California Shasta 6.6

California Solano 8.7

California Sonoma 7.6

California Stanislaus 11.0

California Sutter 8.2

California Tulare 13.2

California Ventura 8.4

California Yolo 7.9

Colorado Adams 8.4

Colorado Arapahoe 6.4

Colorado Boulder 7.2

Colorado Denver 7.8

Colorado Douglas 5.3

Colorado El Paso 7.0

Colorado Elbert 4.0

Colorado Larimer 6.6

Colorado Mesa 8.8

Colorado Pueblo 7 2.

Colorado Weld 8.1

Connecticut Fairfield 8.5

Page 2
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Connecticut Hartford 7.4

Connecticut Litchfield 6.3

Connecticut New Haven New Haven 8.7

Connecticut New London 7.3

Delaware Kent 7.0

Delaware New Castle 9.0

Delaware Sussex 7.8

District of Columbia District of Columbia 7.8

Florida Alachua 6.1

Florida Bay 7 6.

Florida Brevard 5.4

Florida Broward 5.2

Florida Citrus 5.4

Florida Duval 6.9

Florida Escambia 7.2

Florida Hillsborough 6.3

Fl id or a Lee 5 4.

Florida Leon 8.3

Florida Manatee 5.8

Florida Marion 6.7

Florida Miami-Dade 6.0

Florida Orange 5.7

Florida Palm Beach 4.9

Florida Pinellas 5.7

Florida Polk 5.9

Florida Sarasota 5.2

Florida Seminole 5.7

Florida St. Lucie 5.5

Florida Volusia 6.4

Georgia Bibb 10.9

Georgia Chatham 9.7

Georgia Clarke 9.9

Georgia Clayton 9.4

Georgia Cobb 9.3

Georgia DeKalb 8.6

Georgia Dougherty 10.5

Georgia Floyd 9.5

Georgia Fulton 9.4

Georgia Glynn 8.2

Georgia Gwinnett 8.8

Georgia Hall 8.2

Georgia Houston 8.8

Georgia Lowndes 8.8

Georgia Muscogee 10 1.

Georgia Paulding 8.0

Georgia Richmond 10.2

Page 3
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Georgia Washington 9.9

Georgia Wilkinson 10.9

Idaho Ada 6.3

Idaho Benewah 9.3

Idaho Canyon 7.5

Idaho Franklin 6.8

Idaho Idaho 9.3

Idaho Shoshone 11.5

Illinois Champaign 8.9

Illinois Cook 11 5.

Illinois DuPage 9.5

Illinois Hamilton 8.4

Illinois Jersey 8.6

Illinois Kane 9.7

Illinois Lake 8.1

Illinois Macon 9.5

Illi i no s M di a son 11 7.

Illinois McHenry 8.5

Illinois McLean 8.6

Illinois Peoria 9.4

Illinois Randolph 8.9

Illinois Rock Island 9.0

Illinois Sangamon 9.2

Illinois St. Clair 10.6

Illinois Will 9.8

Illinois Winnebago 9.5

Indiana Allen 9.8

Indiana Clark 9.8

Indiana Delaware 8.9

Indiana Dubois 9.8

Indiana Floyd 8.6

Indiana Henry 8.2

Indiana Howard 9.1

Indiana Knox 8.7

Indiana Lake 11.2

Indiana LaPorte 9.2

Indiana Madison 9.0

Indiana Marion 10.4

Indiana Porter 9.4

Indiana Spencer 8.7

Indiana St. Joseph 9.5

Indiana Tippecanoe 8.9

Indiana Vanderburgh 9.6

Indiana Vigo 9 4.

Iowa Black Hawk 9.0

Iowa Clinton 10.7

Page 4
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Iowa Johnson 9.2

Iowa Lee 9.2

Iowa Linn 8.2

Iowa Montgomery 7.6

Iowa Muscatine 10.8

Iowa Palo Alto 7.3

Iowa Polk 7.8

Iowa Pottawattamie 8.6

Iowa Scott 11.5

Iowa Van Buren Van Buren 8 0.

Iowa Woodbury 8.6

Iowa Wright 7.9

Kansas Johnson 7.5

Kansas Linn 7.9

Kansas Sedgwick 7.8

Kansas Shawnee 8.0

Kansas Sumner 7 5.

Kansas Wyandotte 8.6

Kentucky Bell 8.9

Kentucky Boyd 8.5

Kentucky Bullitt 8.9

Kentucky Carter 7.5

Kentucky Christian 8.6

Kentucky Daviess 8.6

Kentucky Fayette 8.0

Kentucky Franklin 7.5

Kentucky Hardin 8.2

Kentucky Henderson 8.9

Kentucky Jefferson 9.0

Kentucky Kenton 8.2

Kentucky Madison 7.0

Kentucky McCracken 8.9

Kentucky Ohio 8.4

Kentucky Perry 8.5

Kentucky Pike 7.9

Louisiana Caddo Parish 9.4

Louisiana Calcasieu Parish Calcasieu Parish 7.6

Louisiana East Baton Rouge Parish 9.2

Louisiana Iberville Parish 8.8

Louisiana Jefferson Parish 7.4

Louisiana Lafayette Parish 7.5

Louisiana Ouachita Parish 8.2

Louisiana Rapides Parish 7.5

Louisiana St Bernard Parish St. Bernard Parish 7 9.

Louisiana Tangipahoa Parish 8.0

Louisiana Terrebonne Parish 7.2

Page 5
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Louisiana West Baton Rouge Parish 9.7

Maine Androscoggin 7.6

Maine Aroostook 8.7

Maine Cumberland 8.4

Maine Hancock 4.1

Maine Kennebec 7.7

Maine Oxford 8.2

Maine Penobscot 7.2

Maine Piscataquis 4.7

Maryland Anne Arundel Anne Arundel 8 3.

Maryland Baltimore 8.5

Maryland Baltimore city 8.9

Maryland Cecil 7.2

Maryland Harford 7.0

Maryland Montgomery 6.7

Maryland Prince George's 7.6

M ld ary and W hi t as ng on 7 5.

Massachusetts Berkshire 7.3

Massachusetts Bristol 6.3

Massachusetts Essex 6.9

Massachusetts Hampden 8.8

Massachusetts Middlesex 6.4

Massachusetts Plymouth 6.7

Massachusetts Suffolk 8.5

Massachusetts Worcester 8.2

Michigan Allegan 8.3

Michigan Bay 7.9

Michigan Berrien 8.2

Michigan Genesee 8.0

Michigan Ingham 8.2

Michigan Kalamazoo 9.2

Michigan Kent 9.0

Michigan Macomb 8.6

Michigan Manistee 6.0

Michigan Missaukee 6.2

Michigan Monroe 9.3

Michigan Muskegon 8.1

Michigan Oakland 9.0

Michigan Ottawa 8.7

Michigan St. Clair 8.8

Michigan Washtenaw 9.3

Michigan Wayne 11.6

Minnesota Cass 5.0

Minnesota Dakota 7 7.

Minnesota Hennepin 8.2

Minnesota Mille Lacs 5.6

Page 6
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Minnesota Olmsted 8.0

Minnesota Ramsey 9.2

Minnesota Scott 7.6

Minnesota St. Louis 6.7

Minnesota Stearns 7.1

Mississippi Adams 7.8

Mississippi Bolivar 8.5

Mississippi DeSoto 8.0

Mississippi Forrest 10.2

Mississippi Grenada 7 2.

Mississippi Harrison 7.7

Mississippi Hinds 8.9

Mississippi Jackson 7.7

Mississippi Jones 10.5

Mississippi Lauderdale 9.1

Mississippi Lee 8.6

Mi i i i Mississippi L d own es 8 7.

Missouri Buchanan 9.7

Missouri Cass 7.9

Missouri Clay 8.0

Missouri Greene 8.8

Missouri Jackson 9.2

Missouri Jefferson 10.2

Missouri St. Charles 9.6

Missouri St. Louis 9.2

Missouri St. Louis city 10.2

Missouri Ste. Genevieve 9.5

Montana Cascade 5.9

Montana Flathead 9.3

Montana Gallatin 8.4

Montana Lewis and Clark 8.3

Montana Missoula 9.4

Montana Ravalli 8.9

Montana Sanders 6.9

Montana Silver Bow 10.9

Montana Yellowstone 7.5

Nebraska Douglas 7.3

Nebraska Hall 6.4

Nebraska Lancaster 6.3

Nebraska Sarpy 7.2

Nebraska Scotts Bluff 5.7

Nebraska Washington 6.7

Nevada Clark 8.7

Nevada Washoe 7 8.

New Hampshire Belknap 5.4

New Hampshire Cheshire 9.4

Page 7
State County

2020 Projected 

Annual Design Value 

(μg/m3)

New Hampshire Grafton 6.6

New Hampshire Hillsborough 7.6

New Hampshire New Hampshire Merrimack 7.6

New Hampshire Rockingham 7.0

New Hampshire Sullivan 8.0

New Jersey Atlantic 7.2

New Jersey Bergen 7.8

New Jersey Camden 8.9

New Jersey Essex 8.4

New Jersey New Jersey Gloucester 7 2.

New Jersey Hudson 9.0

New Jersey Mercer 7.7

New Jersey Middlesex 7.3

New Jersey Morris 6.6

New Jersey Ocean 6.4

New Jersey Passaic 7.8

N J ewersey U i n on 8 5.

New Jersey Warren 7.8

New Mexico Bernalillo 5.9

New Mexico Chaves 6.1

New Mexico Do±a Ana 10.2

New Mexico Grant 4.9

New Mexico San Juan 5.6

New Mexico Sandoval 7.3

New Mexico Santa Fe 4.2

New York Albany 6.9

New York Bronx 9.7

New York Chautauqua 6.0

New York Erie 8.2

New York Essex 4.0

New York Kings 8.4

New York Monroe 6.6

New York Nassau 6.9

New York New York 10.8

New York Niagara 7.8

New York Onondaga 6.5

New York New York Orange 6.6

New York Queens 7.2

New York Richmond 7.9

New York St. Lawrence 4.8

New York Steuben 5.4

New York Suffolk 6.4

New York Westchester 7.0

North Carolina North Carolina Alamance 7 5.

North Carolina Buncombe 7.0

North Carolina Caswell 6.9

Page 8
State County

2020 Projected 

Annual Design Value 

(μg/m3)

North Carolina Catawba 8.7

North Carolina Chatham 6.7

North Carolina North Carolina Cumberland 8.1

North Carolina Davidson 8.7

North Carolina Duplin 6.3

North Carolina Durham 8.4

North Carolina Edgecombe 7.2

North Carolina Forsyth 7.7

North Carolina Gaston 8.0

North Carolina North Carolina Guilford 6 4.

North Carolina Haywood 9.1

North Carolina Jackson 7.6

North Carolina Lenoir 6.3

North Carolina Martin 6.4

North Carolina McDowell 8.5

North Carolina Mecklenburg 8.4

N th C li North Carolina Mit h ll Mitchell 7 7.

North Carolina Montgomery 7.1

North Carolina New Hanover 5.9

North Carolina Onslow 6.4

North Carolina Orange 7.7

North Carolina Pitt 7.0

North Carolina Robeson 7.8

North Carolina Rowan 8.3

North Carolina Swain 7.9

North Carolina Wake 7.8

North Carolina Watauga 6.3

North Carolina Wayne 7.7

North Dakota Billings 4.3

North Dakota Burleigh 6.1

North Dakota Cass 6.8

North Dakota Mercer 5.8

Ohio Athens 7.0

Ohio Butler 9.9

Ohio Clark 9.5

Ohio Clermont 8.2

Ohio Cuyahoga 10.7

Ohio Franklin 9.1

Ohio Greene 8.2

Ohio Hamilton 10.5

Ohio Jefferson 9.0

Ohio Lake 8.1

Ohio Lawrence 9.7

Ohio Lorain 8 4.

Ohio Lucas 10.2

Ohio Mahoning 9.3

Page 9
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Ohio Medina 8.0

Ohio Montgomery 9.5

Ohio Portage 8.4

Ohio Preble 8.6

Ohio Scioto 8.5

Ohio Stark 10.8

Ohio Summit 9.7

Ohio Trumbull 9.4

Ohio Warren 8.1

Oklahoma Caddo 6 9.

Oklahoma Cherokee 9.8

Oklahoma Kay 8.7

Oklahoma Mayes 9.2

Oklahoma Muskogee 9.2

Oklahoma Oklahoma 7.9

Oklahoma Ottawa 8.9

Okl ha oma Pitt bs urg 8 8.

Oklahoma Sequoyah 9.6

Oklahoma Tulsa 8.9

Oregon Harney 9.8

Oregon Jackson 9.7

Oregon Josephine 8.6

Oregon Klamath 11.3

Oregon Lake 9.4

Oregon Lane 10.7

Oregon Multnomah 7.8

Oregon Umatilla 7.7

Oregon Union 7.3

Oregon Washington 8.1

Pennsylvania Adams 7.4

Pennsylvania Allegheny 11.1

Pennsylvania Beaver 10.1

Pennsylvania Berks 8.6

Pennsylvania Bucks 8.4

Pennsylvania Cambria 9.2

Pennsylvania Centre 7.0

Pennsylvania Cumberland 8.5

Pennsylvania Dauphin 8.8

Pennsylvania Delaware 9.4

Pennsylvania Erie 8.1

Pennsylvania Lackawanna 7.2

Pennsylvania Lancaster 9.4

Pennsylvania Mercer 8.1

Pennsylvania Montgomery 7 7.

Pennsylvania Northampton 8.7

Pennsylvania Philadelphia 8.6

Page 10
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Pennsylvania Washington 8.6

Pennsylvania Westmoreland 8.5

Pennsylvania York 9.5

Rhode Island Kent 5.2

Rhode Island Providence 8.6

South Carolina Beaufort 7.5

South Carolina Charleston 7.2

South Carolina Chesterfield 7.6

South Carolina Edgefield 8.2

South Carolina South Carolina Florence 7 9.

South Carolina Greenville 9.8

South Carolina Greenwood 8.9

South Carolina Horry 7.8

South Carolina Lexington 8.6

South Carolina Oconee 6.4

South Carolina Richland 8.4

S th C li South Carolina S tb par anburg 8 4.

South Dakota Brookings 7.2

South Dakota Brown 7.1

South Dakota Codington 8.1

South Dakota Custer 5.2

South Dakota Jackson 4.8

South Dakota Minnehaha 7.9

South Dakota Pennington 7.8

Tennessee Blount 9.4

Tennessee Davidson 9.1

Tennessee Dyer 7.8

Tennessee Hamilton 8.9

Tennessee Knox 10.2

Tennessee Lawrence 7.4

Tennessee Loudon 10.0

Tennessee Madison 7.4

Tennessee Maury 7.9

Tennessee McMinn 9.1

Tennessee Montgomery 8.2

Tennessee Putnam 7.0

Tennessee Roane 8.9

Tennessee Shelby 9.1

Tennessee Sullivan 8.1

Tennessee Sumner 7.9

Texas Bowie 9.4

Texas Dallas 8.1

Texas Ector 7.6

Texas El Paso El Paso 11 4.

Texas Harris 11.4

Texas Harrison 8.3

Page 11
State County

2020 Projected 

Annual Design Value 

(μg/m3)

Texas Hidalgo 9.8

Texas Nueces 8.6

Texas Orange 8.5

Texas Potter 5.3

Texas Tarrant 8.6

Texas Travis 7.0

Utah Box Elder 7.3

Utah Cache 8.7

Utah Davis 9.0

Utah Salt Lake Salt Lake 9 4.

Utah Tooele 5.7

Utah Utah 9.1

Utah Weber 9.3

Vermont Bennington 5.7

Vermont Chittenden 7.1

Vermont Rutland 9.5

Vi i i rg n a A li t r ng on 7 7.

Virginia Bristol city 7.6

Virginia Charles City 6.9

Virginia Chesterfield 7.4

Virginia Fairfax 7.9

Virginia Hampton city 7.1

Virginia Henrico 7.2

Virginia Loudoun 7.3

Virginia Lynchburg city 7.4

Virginia Norfolk city 7.7

Virginia Page 6.8

Virginia Roanoke city 8.9

Virginia Rockingham 7.5

Virginia Virg y inia Beach city 7.3

Washington King 7.7

Washington Pierce 8.6

Washington Snohomish 8.1

Washington Spokane 9.0

Washington Yakima 8.8

West Virginia Berkeley 10.0

West Virginia West Virginia Brooke 9.2

West Virginia Cabell 10.0

West Virginia Hancock 8.6

West Virginia Harrison 8.2

West Virginia Kanawha 9.4

West Virginia Marion 9.0

West Virginia Marshall 8.4

West Virginia West Virginia Monongalia 7 7.

West Virginia Ohio 7.8

West Virginia Raleigh 7.1

Page 12
State County

2020 Projected 

Annual Design Value 

(μg/m3)

West Virginia Wood 9.2

Wisconsin Ashland 5.3

Wisconsin Brown 9.8

Wisconsin Dane 10.4

Wisconsin Dodge 9.0

Wisconsin Forest 5.9

Wisconsin Grant 10.1

Wisconsin Kenosha 9.8

Wisconsin La Crosse 10.1

Wisconsin Manitowoc 8 8.

Wisconsin Milwaukee 12.0

Wisconsin Outagamie 9.3

Wisconsin Ozaukee 9.5

Wisconsin Sauk 8.4

Wisconsin St. Croix 7.8

Wisconsin St. Croix 8.7

Wi i scons n T l ay or 6 3.

Wisconsin Taylor 7.5

Wisconsin Vilas 5.4

Wisconsin Vilas 5.8

Wisconsin Waukesha 9.8

Wisconsin Waukesha 11.2

Wyoming Campbell 5.3

Wyoming Campbell 5.9

Wyoming Converse 3.3

Wyoming Converse 3.4

Wyoming Fremont 7.3

Wyoming Fremont 7.4

Wyoming Laramie 3.8

Wy g omin Laramie 3.8

Wyoming Sheridan 8.7

Wyoming Sheridan 8.7

All 7 counties are already part of currently designated PM 2.5 nonattainment areas. 

This map shows projections for 2020 used in the Regulatory Impact Analysis (RIA) to estimate the 

costs and benefits of attaining the revised NAAQS. These projections reflect 2020 based on 2007 

emissions for those counties with monitoring data within the contiguous 48 states with the exception of 

South Coast Air Basin and San Joaquin Valley CA which include 2025 mobile NOx emissions

For a list of the federal rules included in the projections, see the Executive Summary of the PM 

South Coast Air Basin and San Joaquin Valley, CA, which include 2025 mobile NOx emissions

estimates.

These 2020 projections account for emissions reductions from “on-the-books” federal and state rules, 

and an estimate of emissions reductions needed to attain the PM 2.5 standards of 15/ 35 μg/m 3 . Three 

additional counties in the San Joaquin Valley were projected to meet an annual standard of 12 μg/m 3 

only after simulating emissions reductions needed to meet the 24-hour standard of 35 μg/m 3 .

NAAQS RIA www.epa.gov/pm

Page 13