40 CFR 81.326: Missouri.

Missouri—TSP

Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards

St. Louis AQCR (070):

St. Louis (an area extending west about 2 miles from the Mississippi River, north to near I-270 and south to about 1 mile beyond the city limits X

Remainder of the city of St. Louis X

Remainder of AQCR X

Kansas City AQCR (094):

Kansas City (an area extending approximately from the Kansas state line east along Red Bridge Road and 115th Street to Missouri Highway 291, then north to I-70, east to Missouri Highway 7, north to U.S. Highway 24 west to Missouri Highway 291, north to Missouri Highway 152, west to Missouri Highway 9, south to U.S. Highway FF, and due south to the state line) X

St. Joseph: Within city limits X

Remainder of AQCR X

Northern AQCR (137): Mexico (township 51 north, range 9 west) X

Remainder of AQCR X

Southeastern AQCR (138) X

Remainder of AQCR X

Southwestern AQCR (139) X

1 EPA designation replaces State designation.

Missouri—1971 Sulfur Dioxide NAAQS

[Primary and Secondary]

Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards

Northern AQCR (137):

Pike County X

Ralls County X

Remainder of AQCR X

Remainder of State X

Missouri—2010 Sulfur Dioxide NAAQS

[Primary]

Designated area 1 Designation

Date 2 Type

Jackson County, MO 3/2/2022 Attainment.

Jackson County (part).

The portion of Jackson County bounded by I-70/I-670 and the Missouri River to the north; and, to the west of I-435 to the state line separating Missouri and Kansas

Jefferson County, MO 2/28/2022 Attainment.

Jefferson County (part)

That portion within Jefferson County described by connecting the following four sets of UTM coordinates moving in a clockwise manner:

(Herculaneum USGS Quadrangle), 718360.283, 4250477.056, 729301.869, 4250718.415, 729704.134, 4236840.30, 718762.547, 4236558.715

(Festus USGS Quadrangle), 718762.547, 4236558.715, 729704.134, 4236840.30, 730066.171, 4223042.637, 719124.585, 4222680.6

(Selma USGS Quadrangle), 729704.134, 4236840.30, 730428.209, 4236840.3, 741047.984, 4223283.996, 730066.171, 4223042.637

(Valmeyer USGS Quadrangle), 729301.869, 4250718.415, 731474.096, 4250798.868, 730428.209, 4236840.3, 729704.134, 4236840.30

New Madrid County, MO 4/30/2021 Nonattainment.

New Madrid County (part).

Area bounded by: East: Missouri/Kentucky and Missouri/Tennessee State lines. North: County Highway 406 East to Levee Road, following Levee Road North to County Highway 406, then extending directly East to the Missouri/Kentucky State line. West: County Highway 403 South: County Highway 408 East to the intersection with County Highway 431, then extending directly East to the Missouri/Tennessee State line.

Franklin-St. Charles Counties, MO 9/12/2016 Unclassifiable.

Franklin County (part)

The eastern and western boundaries are Boles Township boundaries. The northern boundary is the Franklin County-St. Charles County Line. The southern boundary is Interstate 44.

St. Charles County (part)

The eastern and western boundaries are Boone Township boundaries. The northern boundary is Missouri Route D and Highway 94. The southern boundary is the Franklin County-St. Charles County Line.

Jackson County, MO 9/12/2016 Unclassifiable.

Jackson County (part)

The northern boundary is the county line separating Jackson County from Clay and Ray Counties. The eastern boundary is the county line separating Jackson County from Lafayette County. The southern boundary is Interstates 70 and 470. The western boundary is Missouri Highway 291.

Adair County Attainment/Unclassifiable.

Andrew County Attainment/Unclassifiable.

Atchison County Attainment/Unclassifiable.

Audrain County Attainment/Unclassifiable.

Barry County Attainment/Unclassifiable.

Barton County Attainment/Unclassifiable.

Bates County Attainment/Unclassifiable.

Benton County Attainment/Unclassifiable.

Bollinger County Attainment/Unclassifiable.

Boone County Attainment/Unclassifiable.

Buchanan County Attainment/Unclassifiable.

Butler County Attainment/Unclassifiable.

Caldwell County Attainment/Unclassifiable.

Callaway County Attainment/Unclassifiable.

Camden County Attainment/Unclassifiable.

Cape Girardeau County Attainment/Unclassifiable.

Carroll County Attainment/Unclassifiable.

Carter County Attainment/Unclassifiable.

Cass County Attainment/Unclassifiable.

Cedar County Attainment/Unclassifiable.

Chariton County Attainment/Unclassifiable.

Christian County Attainment/Unclassifiable.

Clark County Attainment/Unclassifiable.

Clay County Attainment/Unclassifiable.

Clinton County Attainment/Unclassifiable.

Cole County Attainment/Unclassifiable.

Cooper County Attainment/Unclassifiable.

Crawford County Attainment/Unclassifiable.

Dade County Attainment/Unclassifiable.

Dallas County Attainment/Unclassifiable.

Daviess County Attainment/Unclassifiable.

DeKalb County Attainment/Unclassifiable.

Dent County Attainment/Unclassifiable.

Douglas County Attainment/Unclassifiable.

Dunklin County Attainment/Unclassifiable.

Franklin County (part) (remainder) Attainment/Unclassifiable.

Gasconade County Attainment/Unclassifiable.

Gentry County Attainment/Unclassifiable.

Greene County Attainment/Unclassifiable.

Grundy County Attainment/Unclassifiable.

Harrison County Attainment/Unclassifiable.

Henry County Attainment/Unclassifiable.

Hickory County Attainment/Unclassifiable.

Holt County Attainment/Unclassifiable.

Howard County Attainment/Unclassifiable.

Howell County Attainment/Unclassifiable.

Iron County 4/30/2021 Attainment/Unclassifiable.

Jackson County (part) (remainder) Attainment/Unclassifiable.

Jasper County Attainment/Unclassifiable.

Jefferson County (part) (remainder) Attainment/Unclassifiable.

Johnson County Attainment/Unclassifiable.

Knox County Attainment/Unclassifiable.

Laclede County Attainment/Unclassifiable.

Lafayette County Attainment/Unclassifiable.

Lawrence County Attainment/Unclassifiable.

Lewis County Attainment/Unclassifiable.

Lincoln County Attainment/Unclassifiable.

Linn County Attainment/Unclassifiable.

Livingston County Attainment/Unclassifiable.

Macon County Attainment/Unclassifiable.

Madison County Attainment/Unclassifiable.

Maries County Attainment/Unclassifiable.

Marion County Attainment/Unclassifiable.

McDonald County Attainment/Unclassifiable.

Mercer County Attainment/Unclassifiable.

Miller County Attainment/Unclassifiable.

Mississippi County Attainment/Unclassifiable.

Moniteau County Attainment/Unclassifiable.

Monroe County Attainment/Unclassifiable.

Montgomery County Attainment/Unclassifiable.

Morgan County Attainment/Unclassifiable.

New Madrid County (remainder) 4/30/2021 Attainment/Unclassifiable.

Newton County Attainment/Unclassifiable.

Nodaway County Attainment/Unclassifiable.

Oregon County Attainment/Unclassifiable.

Osage County Attainment/Unclassifiable.

Ozark County Attainment/Unclassifiable.

Pemiscot County Attainment/Unclassifiable.

Perry County Attainment/Unclassifiable.

Pettis County Attainment/Unclassifiable.

Phelps County Attainment/Unclassifiable.

Pike County Attainment/Unclassifiable.

Platte County Attainment/Unclassifiable.

Polk County Attainment/Unclassifiable.

Pulaski County Attainment/Unclassifiable.

Putnam County Attainment/Unclassifiable.

Ralls County Attainment/Unclassifiable.

Randolph County Attainment/Unclassifiable.

Ray County Attainment/Unclassifiable.

Reynolds County Attainment/Unclassifiable.

Ripley County Attainment/Unclassifiable.

St. Charles County (part) (remainder) Attainment/Unclassifiable.

St. Clair County Attainment/Unclassifiable.

St. Francois County Attainment/Unclassifiable.

Ste. Genevieve County Attainment/Unclassifiable.

St. Louis City Attainment/Unclassifiable.

St. Louis County Attainment/Unclassifiable.

Saline County Attainment/Unclassifiable.

Schuyler County Attainment/Unclassifiable.

Scotland County Attainment/Unclassifiable.

Scott County 9/12/2016 Attainment/Unclassifiable.

Shannon County Attainment/Unclassifiable.

Shelby County Attainment/Unclassifiable.

Stoddard County Attainment/Unclassifiable.

Stone County Attainment/Unclassifiable.

Sullivan County Attainment/Unclassifiable.

Taney County Attainment/Unclassifiable.

Texas County Attainment/Unclassifiable.

Vernon County Attainment/Unclassifiable.

Warren County Attainment/Unclassifiable.

Washington County Attainment/Unclassifiable.

Wayne County Attainment/Unclassifiable.

Webster County Attainment/Unclassifiable.

Worth County Attainment/Unclassifiable.

Wright County Attainment/Unclassifiable.

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is April 9, 2018, unless otherwise noted.

Missouri—Carbon Monoxide

Designated Area Designation Classification

Date 1 Type Date 1 Type

St. Louis Area:

St. Louis City Attainment

St. Louis County (part):

The area encompassed by the I-270 and the, Mississippi River. Attainment

AQCR 137 Northern Missouri Intrastate:

Pike County Unclassifiable/Attainment

Ralls County Unclassifiable/Attainment

AQCR 137 Northern Missouri Intrastate (Remainder of) Unclassifiable/Attainment

Adair County

Andrew County

Atchison County

Audrain County

Boone County

Caldwell County

Callaway County

Carroll County

Chariton County

Clark County

Clinton County

Cole County

Cooper County

Daviess County

De Kalb County

Gentry County

Grundy County

Harrison County

Holt County

Howard County

Knox County

Lewis County

Lincoln County

Linn County

Livingston County

Macon County

Marion County

Mercer County

Moniteau County

Monroe County

Montgomery County

Nodaway County

Osage County

Putnam County

Randolph County

Saline County

Schuyler County

Scotland County

Shelby County

Sullivan County

Warren County

Worth County

Rest of State Unclassifiable/Attainment

Barry County

Barton County

Bates County

Benton County

Bollinger County

Buchanan County

Butler County

Camden County

Cape Girardeau County

Carter County

Cass County

Cedar County

Christina County

Clay County

Crawford County

Dade County

Dallas County

Dent County

Douglas County

Dunklin County

Franklin County

Gasconade County

Greene County

Henry County

Hickory County

Howell County

Iron County

Jackson County

Jasper County

Jefferson County

Johnson County

Laclede County

Lafayette County

Lawrence County

Madison County

Maries County

McDonald County

Miller County

Mississippi County

Morgan County

New Madrid County

Newton County

Oregon County

Ozark County

Pemiscot County

Perry County

Pettis County

Phelps County

Platte County

Polk County

Pulaski County

Ray County

Reynolds County

Ripley County

Scott County

Shannon County

St. Charles County

St. Clair County

St. Francis County

St. Louis County (part) Remainder of County

Ste. Geevieve County

Stoddard County

Stone County

Taney County

Texas County

Vernon County

Washington County

Wayne County

Webster County

Wright County

1 This date is November 15, 1990, unless otherwise noted.

Missouri—Ozone (1-Hour Standard)2

Designated area Designation Classification

Date 1 Type Date 1 Type

Kansas City Area:

Clay County 7/23/1992 Unclassifiable/Attainment

Jackson County 7/23/1992 Unclassifiable/Attainment

Platte County 7/23/1992 Unclassifiable/Attainment

St. Louis Area:

Franklin County 5/12/2003 Attainment

Jefferson County 5/12/2003 Attainment

St. Charles County 5/12/2003 Attainment

St. Louis 5/12/2003 Attainment

St. Louis County 5/12/2003 Attainment

AQCR 094 Metro Kansas City Interstate (Remainder of)

Buchanan County

Cass County

Ray County

AQCR 137 N. Missouri Intrastate (part)

Pike County Unclassifiable/Attainment

Ralls County Unclassifiable/Attainment

AQCR 137 N. Missouri Intrastate (Remainder of) Unclassifiable/Attainment

Adair County

Andrew County

Atchison County

Audrain County

Boone County

Caldwell County

Callaway County

Carroll County

Chariton County

Clark County

Clinton County

Cole County

Cooper County

Daviess County

DeKalb County

Gentry County

Grundy County

Harrison County

Holt County

Howard County

Knox County

Lewis County

Lincoln County

Linn County

Livingston County

Macon County

Marion County

Mercer County

Moniteau County

Monroe County

Montgomery County

Nodaway County

Osage County

Putnam County

Randolph County

Saline County

Schuyler County

Scotland County

Shelby County

Sullivan County

Warren County

Worth County

Rest of State Unclassifiable/Attainment

Barry County

Barton County

Bates County

Benton County

Bollinger County

Butler County

Camden County

Cape Girardeau County

Carter County

Cedar County

Christian County

Crawford County

Dade County

Dallas County

Dent County

Douglas County

Dunklin County

Gasconade County

Greene County

Henry County

Hickory County

Howell County

Iron County

Jasper County

Johnson County

Laclede County

Lafayette County

Lawrence County

Madison County

Maries County

McDonald County

Miller County

Mississippi County

Morgan County

New Madrid County

Newton County

Oregon County

Ozark County

Pemiscot County

Perry County

Pettis County

Phelps County

Polk County

Pulaski County

Reynolds County

Ripley County

Scott County

Shannon County

St. Clair County

St. Francois County

Ste. Genevieve County

Stoddard County

Stone County

Taney County

Texas County

Vernon County

Washington County

Wayne County

Webster County

Wright County

1 This date is October 18, 2000, unless otherwise noted.

2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Missouri. The Kansas City and St. Louis areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.

Missouri—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date 2 Type

St. Louis, MO-IL:

Franklin County 8/3/2018 Attainment

Jefferson County 8/3/2018 Attainment

St. Charles County 8/3/2018 Attainment

St. Louis County 8/3/2018 Attainment

St. Louis City 8/3/2018 Attainment

Rest of State:

Adair County Unclassifiable/Attainment.

Andrew County Unclassifiable/Attainment.

Atchison County Unclassifiable/Attainment.

Audrain County Unclassifiable/Attainment.

Barry County Unclassifiable/Attainment.

Barton County Unclassifiable/Attainment.

Bates County Unclassifiable/Attainment.

Benton County Unclassifiable/Attainment.

Bollinger County Unclassifiable/Attainment.

Boone County Unclassifiable/Attainment.

Buchanan County Unclassifiable/Attainment.

Butler County Unclassifiable/Attainment.

Caldwell County Unclassifiable/Attainment.

Callaway County Unclassifiable/Attainment.

Camden County Unclassifiable/Attainment.

Cape Girardeau County Unclassifiable/Attainment.

Carroll County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Cass County Unclassifiable/Attainment.

Cedar County Unclassifiable/Attainment.

Chariton County Unclassifiable/Attainment.

Christian County Unclassifiable/Attainment.

Clark County Unclassifiable/Attainment.

Clay County Unclassifiable/Attainment.

Clinton County Unclassifiable/Attainment.

Cole County Unclassifiable/Attainment.

Cooper County Unclassifiable/Attainment.

Crawford County Unclassifiable/Attainment.

Dade County Unclassifiable/Attainment.

Dallas County Unclassifiable/Attainment.

Daviess County Unclassifiable/Attainment.

DeKalb County Unclassifiable/Attainment.

Dent County Unclassifiable/Attainment.

Douglas County Unclassifiable/Attainment.

Dunklin County Unclassifiable/Attainment.

Gasconade County Unclassifiable/Attainment.

Gentry County Unclassifiable/Attainment.

Greene County Unclassifiable/Attainment.

Grundy County Unclassifiable/Attainment.

Harrison County Unclassifiable/Attainment.

Henry County Unclassifiable/Attainment.

Hickory County Unclassifiable/Attainment.

Holt County Unclassifiable/Attainment.

Howard County Unclassifiable/Attainment.

Howell County Unclassifiable/Attainment.

Iron County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jasper County Unclassifiable/Attainment.

Johnson County Unclassifiable/Attainment.

Knox County Unclassifiable/Attainment.

Laclede County Unclassifiable/Attainment.

Lafayette County Unclassifiable/Attainment.

Lawrence County Unclassifiable/Attainment.

Lewis County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Linn County Unclassifiable/Attainment.

Livingston County Unclassifiable/Attainment.

McDonald County Unclassifiable/Attainment.

Macon County Unclassifiable/Attainment.

Madison County Unclassifiable/Attainment.

Maries County Unclassifiable/Attainment.

Marion County Unclassifiable/Attainment.

Mercer County Unclassifiable/Attainment.

Miller County Unclassifiable/Attainment.

Mississippi County Unclassifiable/Attainment.

Moniteau County Unclassifiable/Attainment.

Monroe County Unclassifiable/Attainment.

Montgomery County Unclassifiable/Attainment.

Morgan County Unclassifiable/Attainment.

New Madrid County Unclassifiable/Attainment.

Newton County Unclassifiable/Attainment.

Oregon County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ozark County Unclassifiable/Attainment.

Pemiscot County Unclassifiable/Attainment.

Perry County Unclassifiable/Attainment.

Pettis County Unclassifiable/Attainment.

Phelps County Unclassifiable/Attainment.

Pike County Unclassifiable/Attainment.

Platte County Unclassifiable/Attainment.

Polk County Unclassifiable/Attainment.

Pulaski County Unclassifiable/Attainment.

Putnam County Unclassifiable/Attainment.

Ralls County Unclassifiable/Attainment.

Randolph County Unclassifiable/Attainment.

Ray County Unclassifiable/Attainment.

Reynolds County Unclassifiable/Attainment.

Ripley County Unclassifiable/Attainment.

St. Clair County Unclassifiable/Attainment.

St. Genevieve County Unclassifiable/Attainment.

St. Francois County Unclassifiable/Attainment.

Saline County Unclassifiable/Attainment.

Schuyler County Unclassifiable/Attainment.

Scotland County Unclassifiable/Attainment.

Scott County Unclassifiable/Attainment.

Shannon County Unclassifiable/Attainment.

Shelby County Unclassifiable/Attainment.

Stoddard County Unclassifiable/Attainment.

Stone County Unclassifiable/Attainment.

Sullivan County Unclassifiable/Attainment.

Taney County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Vernon County Unclassifiable/Attainment.

Warren County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

Wayne County Unclassifiable/Attainment.

Webster County Unclassifiable/Attainment.

Worth County Unclassifiable/Attainment.

Wright County Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

2 This date is July 2, 2014, unless otherwise noted.

Missouri—2012 Annual PM2.5 NAAQS

[Primary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

St. Louis Area, MO-IL:

Franklin County 7/29/2019, 84 FR 36473 Unclassifiable/Attainment

Jefferson County 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant

St. Charles County 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant

St. Louis County 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant

St. Louis City 7/29/2019, 84 FR 36473 Unclassifiable/Attainmant

Rest of State:

Adair County Unclassifiable/Attainment

Andrew County Unclassifiable/Attainment

Atchison County Unclassifiable/Attainment

Audrain County Unclassifiable/Attainment

Barry County Unclassifiable/Attainment

Barton County Unclassifiable/Attainment

Bates County Unclassifiable/Attainment

Benton County Unclassifiable/Attainment

Bollinger County Unclassifiable/Attainment

Boone County Unclassifiable/Attainment

Buchanan County Unclassifiable/Attainment

Butler County Unclassifiable/Attainment

Caldwell County Unclassifiable/Attainment

Callaway County Unclassifiable/Attainment

Camden County Unclassifiable/Attainment

Cape Girardeau County Unclassifiable/Attainment

Carroll County Unclassifiable/Attainment

Carter County Unclassifiable/Attainment

Cass County Unclassifiable/Attainment

Cedar County Unclassifiable/Attainment

Chariton County Unclassifiable/Attainment

Christian County Unclassifiable/Attainment

Clark County Unclassifiable/Attainment

Clay County Unclassifiable/Attainment

Clinton County Unclassifiable/Attainment

Cole County Unclassifiable/Attainment

Cooper County Unclassifiable/Attainment

Crawford County Unclassifiable/Attainment

Dade County Unclassifiable/Attainment

Dallas County Unclassifiable/Attainment

Daviess County Unclassifiable/Attainment

DeKalb County Unclassifiable/Attainment

Dent County Unclassifiable/Attainment

Douglas County Unclassifiable/Attainment

Dunklin County Unclassifiable/Attainment

Gasconade County Unclassifiable/Attainment

Gentry County Unclassifiable/Attainment

Greene County Unclassifiable/Attainment

Grundy County Unclassifiable/Attainment

Harrison County Unclassifiable/Attainment

Henry County Unclassifiable/Attainment

Hickory County Unclassifiable/Attainment

Holt County Unclassifiable/Attainment

Howard County Unclassifiable/Attainment

Howell County Unclassifiable/Attainment

Iron County Unclassifiable/Attainment

Jackson County Unclassifiable/Attainment

Jasper County Unclassifiable/Attainment

Johnson County Unclassifiable/Attainment

Knox County Unclassifiable/Attainment

Laclede County Unclassifiable/Attainment

Lafayette County Unclassifiable/Attainment

Lawrence County Unclassifiable/Attainment

Lewis County Unclassifiable/Attainment

Lincoln County Unclassifiable/Attainment

Linn County Unclassifiable/Attainment

Livingston County Unclassifiable/Attainment

McDonald County Unclassifiable/Attainment

Macon County Unclassifiable/Attainment

Madison County Unclassifiable/Attainment

Maries County Unclassifiable/Attainment

Marion County Unclassifiable/Attainment

Mercer County Unclassifiable/Attainment

Miller County Unclassifiable/Attainment

Mississippi County Unclassifiable/Attainment

Moniteau County Unclassifiable/Attainment

Monroe County Unclassifiable/Attainment

Montgomery County Unclassifiable/Attainment

Morgan County Unclassifiable/Attainment

New Madrid County Unclassifiable/Attainment

Newton County Unclassifiable/Attainment

Nodaway County Unclassifiable/Attainment

Oregon County Unclassifiable/Attainment

Osage County Unclassifiable/Attainment

Ozark County Unclassifiable/Attainment

Pemiscot County Unclassifiable/Attainment

Perry County Unclassifiable/Attainment

Pettis County Unclassifiable/Attainment

Phelps County Unclassifiable/Attainment

Pike County Unclassifiable/Attainment

Platte County Unclassifiable/Attainment

Polk County Unclassifiable/Attainment

Pulaski County Unclassifiable/Attainment

Putnam County Unclassifiable/Attainment

Ralls County Unclassifiable/Attainment

Randolph County Unclassifiable/Attainment

Ray County Unclassifiable/Attainment

Reynolds County Unclassifiable/Attainment

Ripley County Unclassifiable/Attainment

St Clair County Unclassifiable/Attainment

St Genevieve County Unclassifiable/Attainment

St Francois County Unclassifiable/Attainment

Saline County Unclassifiable/Attainment

Schuyler County Unclassifiable/Attainment

Scotland County Unclassifiable/Attainment

Scott County Unclassifiable/Attainment

Shannon County Unclassifiable/Attainment

Shelby County Unclassifiable/Attainment

Stoddard County Unclassifiable/Attainment

Stone County Unclassifiable/Attainment

Sullivan County Unclassifiable/Attainment

Taney County Unclassifiable/Attainment

Texas County Unclassifiable/Attainment

Vernon County Unclassifiable/Attainment

Warren County Unclassifiable/Attainment

Washington County Unclassifiable/Attainment

Wayne County Unclassifiable/Attainment

Webster County Unclassifiable/Attainment

Worth County Unclassifiable/Attainment

Wright County Unclassifiable/Attainment

1 Includes areas of Indian country located in each county or area, except as otherwise specified.

2 This date is April 15, 2015, unless otherwise noted.

Missouri—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date 1 Type Date Type

Statewide:

Adair County Unclassifiable/Attainment.

Andrew County Unclassifiable/Attainment.

Atchison County Unclassifiable/Attainment.

Audrain County Unclassifiable/Attainment.

Barry County Unclassifiable/Attainment.

Barton County Unclassifiable/Attainment.

Bates County Unclassifiable/Attainment.

Benton County Unclassifiable/Attainment.

Bollinger County Unclassifiable/Attainment.

Boone County Unclassifiable/Attainment.

Buchanan County Unclassifiable/Attainment.

Butler County Unclassifiable/Attainment.

Caldwell County Unclassifiable/Attainment.

Callaway County Unclassifiable/Attainment.

Camden County Unclassifiable/Attainment.

Cape Girardeau County Unclassifiable/Attainment.

Carroll County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Cass County Unclassifiable/Attainment.

Cedar County Unclassifiable/Attainment.

Chariton County Unclassifiable/Attainment.

Christian County Unclassifiable/Attainment.

Clark County Unclassifiable/Attainment.

Clay County Unclassifiable/Attainment.

Clinton County Unclassifiable/Attainment.

Cole County Unclassifiable/Attainment.

Cooper County Unclassifiable/Attainment.

Crawford County Unclassifiable/Attainment.

Dade County Unclassifiable/Attainment.

Dallas County Unclassifiable/Attainment.

Daviess County Unclassifiable/Attainment.

DeKalb County Unclassifiable/Attainment.

Dent County Unclassifiable/Attainment.

Douglas County Unclassifiable/Attainment.

Dunklin County Unclassifiable/Attainment.

Franklin County Unclassifiable/Attainment.

Gasconade County Unclassifiable/Attainment.

Gentry County Unclassifiable/Attainment.

Greene County Unclassifiable/Attainment.

Grundy County Unclassifiable/Attainment.

Harrison County Unclassifiable/Attainment.

Henry County Unclassifiable/Attainment.

Hickory County Unclassifiable/Attainment.

Holt County Unclassifiable/Attainment.

Howard County Unclassifiable/Attainment.

Howell County Unclassifiable/Attainment.

Iron County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jasper County Unclassifiable/Attainment.

Jefferson County Unclassifiable/Attainment.

Johnson County Unclassifiable/Attainment.

Knox County Unclassifiable/Attainment.

Laclede County Unclassifiable/Attainment.

Lafayette County Unclassifiable/Attainment.

Lawrence County Unclassifiable/Attainment.

Lewis County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Linn County Unclassifiable/Attainment.

Livingston County Unclassifiable/Attainment.

McDonald County Unclassifiable/Attainment.

Macon County Unclassifiable/Attainment.

Madison County Unclassifiable/Attainment.

Maries County Unclassifiable/Attainment.

Marion County Unclassifiable/Attainment.

Mercer County Unclassifiable/Attainment.

Miller County Unclassifiable/Attainment.

Mississippi County Unclassifiable/Attainment.

Moniteau County Unclassifiable/Attainment.

Monroe County Unclassifiable/Attainment.

Montgomery County Unclassifiable/Attainment.

Morgan County Unclassifiable/Attainment.

New Madrid County Unclassifiable/Attainment.

Newton County Unclassifiable/Attainment.

Nodaway County Unclassifiable/Attainment.

Oregon County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ozark County Unclassifiable/Attainment.

Pemiscot County Unclassifiable/Attainment.

Perry County Unclassifiable/Attainment.

Pettis County Unclassifiable/Attainment.

Phelps County Unclassifiable/Attainment.

Pike County Unclassifiable/Attainment.

Platte County Unclassifiable/Attainment.

Polk County Unclassifiable/Attainment.

Pulaski County Unclassifiable/Attainment.

Putnam County Unclassifiable/Attainment.

Ralls County Unclassifiable/Attainment.

Randolph County Unclassifiable/Attainment.

Ray County Unclassifiable/Attainment.

Reynolds County Unclassifiable/Attainment.

Ripley County Unclassifiable/Attainment.

St Charles County Unclassifiable/Attainment.

St Clair County Unclassifiable/Attainment.

St Genevieve County Unclassifiable/Attainment.

St Francois County Unclassifiable/Attainment.

St Louis City Unclassifiable/Attainment.

St Louis County Unclassifiable/Attainment.

Saline County Unclassifiable/Attainment.

Schuyler County Unclassifiable/Attainment.

Scotland County Unclassifiable/Attainment.

Scott County Unclassifiable/Attainment.

Shannon County Unclassifiable/Attainment.

Shelby County Unclassifiable/Attainment.

Stoddard County Unclassifiable/Attainment.

Stone County Unclassifiable/Attainment.

Sullivan County Unclassifiable/Attainment.

Taney County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Vernon County Unclassifiable/Attainment.

Warren County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

Wayne County Unclassifiable/Attainment.

Webster County Unclassifiable/Attainment.

Worth County Unclassifiable/Attainment.

Wright County Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Missouri—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification

Date1 Type Date Type

Statewide:

Adair County Unclassifiable/Attainment.

Andrew County Unclassifiable/Attainment.

Atchison County Unclassifiable/Attainment.

Audrain County Unclassifiable/Attainment.

Barry County Unclassifiable/Attainment.

Barton County Unclassifiable/Attainment.

Bates County Unclassifiable/Attainment.

Benton County Unclassifiable/Attainment.

Bollinger County Unclassifiable/Attainment.

Boone County Unclassifiable/Attainment.

Buchanan County Unclassifiable/Attainment.

Butler County Unclassifiable/Attainment.

Caldwell County Unclassifiable/Attainment.

Callaway County Unclassifiable/Attainment.

Camden County Unclassifiable/Attainment.

Cape Girardeau County Unclassifiable/Attainment.

Carroll County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Cass County Unclassifiable/Attainment.

Cedar County Unclassifiable/Attainment.

Chariton County Unclassifiable/Attainment.

Christian County Unclassifiable/Attainment.

Clark County Unclassifiable/Attainment.

Clay County Unclassifiable/Attainment.

Clinton County Unclassifiable/Attainment.

Cole County Unclassifiable/Attainment.

Cooper County Unclassifiable/Attainment.

Crawford County Unclassifiable/Attainment.

Dade County Unclassifiable/Attainment.

Dallas County Unclassifiable/Attainment.

Daviess County Unclassifiable/Attainment.

DeKalb County Unclassifiable/Attainment.

Dent County Unclassifiable/Attainment.

Douglas County Unclassifiable/Attainment.

Dunklin County Unclassifiable/Attainment.

Franklin County Unclassifiable/Attainment.

Gasconade County Unclassifiable/Attainment.

Gentry County Unclassifiable/Attainment.

Greene County Unclassifiable/Attainment.

Grundy County Unclassifiable/Attainment.

Harrison County Unclassifiable/Attainment.

Henry County Unclassifiable/Attainment.

Hickory County Unclassifiable/Attainment.

Holt County Unclassifiable/Attainment.

Howard County Unclassifiable/Attainment.

Howell County Unclassifiable/Attainment.

Iron County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jasper County Unclassifiable/Attainment.

Jefferson County Unclassifiable/Attainment.

Johnson County Unclassifiable/Attainment.

Knox County Unclassifiable/Attainment.

Laclede County Unclassifiable/Attainment.

Lafayette County Unclassifiable/Attainment.

Lawrence County Unclassifiable/Attainment.

Lewis County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Linn County Unclassifiable/Attainment.

Livingston County Unclassifiable/Attainment.

McDonald County Unclassifiable/Attainment.

Macon County Unclassifiable/Attainment.

Madison County Unclassifiable/Attainment.

Maries County Unclassifiable/Attainment.

Marion County Unclassifiable/Attainment.

Mercer County Unclassifiable/Attainment.

Miller County Unclassifiable/Attainment.

Mississippi County Unclassifiable/Attainment.

Moniteau County Unclassifiable/Attainment.

Monroe County Unclassifiable/Attainment.

Montgomery County Unclassifiable/Attainment.

Morgan County Unclassifiable/Attainment.

New Madrid County Unclassifiable/Attainment.

Newton County Unclassifiable/Attainment.

Nodaway County Unclassifiable/Attainment.

Oregon County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ozark County Unclassifiable/Attainment.

Pemiscot County Unclassifiable/Attainment.

Perry County Unclassifiable/Attainment.

Pettis County Unclassifiable/Attainment.

Phelps County Unclassifiable/Attainment.

Pike County Unclassifiable/Attainment.

Platte County Unclassifiable/Attainment.

Polk County Unclassifiable/Attainment.

Pulaski County Unclassifiable/Attainment.

Putnam County Unclassifiable/Attainment.

Ralls County Unclassifiable/Attainment.

Randolph County Unclassifiable/Attainment.

Ray County Unclassifiable/Attainment.

Reynolds County Unclassifiable/Attainment.

Ripley County Unclassifiable/Attainment.

St Charles County Unclassifiable/Attainment.

St Clair County Unclassifiable/Attainment.

St Genevieve County Unclassifiable/Attainment.

St Francois County Unclassifiable/Attainment.

St Louis City Unclassifiable/Attainment.

St Louis County Unclassifiable/Attainment.

Saline County Unclassifiable/Attainment.

Schuyler County Unclassifiable/Attainment.

Scotland County Unclassifiable/Attainment.

Scott County Unclassifiable/Attainment.

Shannon County Unclassifiable/Attainment.

Shelby County Unclassifiable/Attainment.

Stoddard County Unclassifiable/Attainment.

Stone County Unclassifiable/Attainment.

Sullivan County Unclassifiable/Attainment.

Taney County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Vernon County Unclassifiable/Attainment.

Warren County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

Wayne County Unclassifiable/Attainment.

Webster County Unclassifiable/Attainment.

Worth County Unclassifiable/Attainment.

Wright County Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 30 days after November 13, 2009, unless otherwise noted.

Missouri—NO2 (1971 Annual Standard)

Designated area Does not meet primary standards Cannot be classified or better than national standards

Northern AQCR (137):

Pike County X

Ralls County X

Remainder of AQCR X

Remainder of State X

Missouri—NO2 (2010 1-Hour Standard)

Designated area Designation a

Date 1 Type

Adair County Unclassifiable/Attainment.

Andrew County Unclassifiable/Attainment.

Atchison County Unclassifiable/Attainment.

Audrain County Unclassifiable/Attainment.

Barry County Unclassifiable/Attainment.

Barton County Unclassifiable/Attainment.

Bates County Unclassifiable/Attainment.

Benton County Unclassifiable/Attainment.

Bollinger County Unclassifiable/Attainment.

Boone County Unclassifiable/Attainment.

Buchanan County Unclassifiable/Attainment.

Butler County Unclassifiable/Attainment.

Caldwell County Unclassifiable/Attainment.

Callaway County Unclassifiable/Attainment.

Camden County Unclassifiable/Attainment.

Cape Girardeau County Unclassifiable/Attainment.

Carroll County Unclassifiable/Attainment.

Carter County Unclassifiable/Attainment.

Cass County Unclassifiable/Attainment.

Cedar County Unclassifiable/Attainment.

Chariton County Unclassifiable/Attainment.

Christian County Unclassifiable/Attainment.

Clark County Unclassifiable/Attainment.

Clay County Unclassifiable/Attainment.

Clinton County Unclassifiable/Attainment.

Cole County Unclassifiable/Attainment.

Cooper County Unclassifiable/Attainment.

Crawford County Unclassifiable/Attainment.

Dade County Unclassifiable/Attainment.

Dallas County Unclassifiable/Attainment.

Daviess County Unclassifiable/Attainment.

DeKalb County Unclassifiable/Attainment.

Dent County Unclassifiable/Attainment.

Douglas County Unclassifiable/Attainment.

Dunklin County Unclassifiable/Attainment.

Franklin County Unclassifiable/Attainment.

Gasconade County Unclassifiable/Attainment.

Gentry County Unclassifiable/Attainment.

Greene County Unclassifiable/Attainment.

Grundy County Unclassifiable/Attainment.

Harrison County Unclassifiable/Attainment.

Henry County Unclassifiable/Attainment.

Hickory County Unclassifiable/Attainment.

Holt County Unclassifiable/Attainment.

Howard County Unclassifiable/Attainment.

Howell County Unclassifiable/Attainment.

Iron County Unclassifiable/Attainment.

Jackson County Unclassifiable/Attainment.

Jasper County Unclassifiable/Attainment.

Jefferson County Unclassifiable/Attainment.

Johnson County Unclassifiable/Attainment.

Knox County Unclassifiable/Attainment.

Laclede County Unclassifiable/Attainment.

Lafayette County Unclassifiable/Attainment.

Lawrence County Unclassifiable/Attainment.

Lewis County Unclassifiable/Attainment.

Lincoln County Unclassifiable/Attainment.

Linn County Unclassifiable/Attainment.

Livingston County Unclassifiable/Attainment.

McDonald County Unclassifiable/Attainment.

Macon County Unclassifiable/Attainment.

Madison County Unclassifiable/Attainment.

Maries County Unclassifiable/Attainment.

Marion County Unclassifiable/Attainment.

Mercer County Unclassifiable/Attainment.

Miller County Unclassifiable/Attainment.

Mississippi County Unclassifiable/Attainment.

Moniteau County Unclassifiable/Attainment.

Monroe County Unclassifiable/Attainment.

Montgomery County Unclassifiable/Attainment.

Morgan County Unclassifiable/Attainment.

New Madrid County Unclassifiable/Attainment.

Newton County Unclassifiable/Attainment.

Nodaway County Unclassifiable/Attainment.

Oregon County Unclassifiable/Attainment.

Osage County Unclassifiable/Attainment.

Ozark County Unclassifiable/Attainment.

Pemiscot County Unclassifiable/Attainment.

Perry County Unclassifiable/Attainment.

Pettis County Unclassifiable/Attainment.

Phelps County Unclassifiable/Attainment.

Pike County Unclassifiable/Attainment.

Platte County Unclassifiable/Attainment.

Polk County Unclassifiable/Attainment.

Pulaski County Unclassifiable/Attainment.

Putnam County Unclassifiable/Attainment.

Ralls County Unclassifiable/Attainment.

Randolph County Unclassifiable/Attainment.

Ray County Unclassifiable/Attainment.

Reynolds County Unclassifiable/Attainment.

Ripley County Unclassifiable/Attainment.

St. Charles County Unclassifiable/Attainment.

St. Clair County Unclassifiable/Attainment.

St. Genevieve County Unclassifiable/Attainment.

St. Francois County Unclassifiable/Attainment.

St. Louis County Unclassifiable/Attainment.

St. Louis City Unclassifiable/Attainment.

Saline County Unclassifiable/Attainment.

Schuyler County Unclassifiable/Attainment.

Scotland County Unclassifiable/Attainment.

Scott County Unclassifiable/Attainment.

Shannon County Unclassifiable/Attainment.

Shelby County Unclassifiable/Attainment.

Stoddard County Unclassifiable/Attainment.

Stone County Unclassifiable/Attainment.

Sullivan County Unclassifiable/Attainment.

Taney County Unclassifiable/Attainment.

Texas County Unclassifiable/Attainment.

Vernon County Unclassifiable/Attainment.

Warren County Unclassifiable/Attainment.

Washington County Unclassifiable/Attainment.

Wayne County Unclassifiable/Attainment.

Webster County Unclassifiable/Attainment.

Worth County Unclassifiable/Attainment.

Wright County Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after October 31, 2011, unless otherwise noted.

Missouri—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation a Category/classification

Date 1 Type Date 1 Type

Kansas City, MO-KS:

Cass County 5/3/2005 Attainment.

Clay County 5/3/2005 Attainment.

Jackson County 5/3/2005 Attainment.

Platte County 5/3/2005 Attainment.

St. Louis, MO-IL

Franklin County 2/20/2015 Attainment

Jefferson County 2/20/2015 Attainment

St. Charles County 2/20/2015 Attainment

St. Louis City 2/20/2015 Attainment

St. Louis County 2/20/2015 Attainment

AQCR 094 Metro Kansas City Interstate Unclassifiable/Attainment.

Buchanan County

Ray County

AQCR 137 N. Missouri Intrastate (part)

Pike County Unclassifiable/Attainment.

Ralls County Unclassifiable/Attainment.

AQCR 137 N. Missouri Intrastate (remainder of)Unclassifiable/Attainment.

Adair County

Andrew County

Atchison County

Audrain County

Boone County

Caldwell County

Callaway County

Carroll County

Chariton County

Clark County

Clinton County

Cole County

Cooper County

Daviess County

DeKalb County

Gentry County

Grundy County

Harrison County

Holt County

Howard County

Knox County

Lewis County

Lincoln County

Linn County

Livingston County

Macon County

Marion County

Mercer County

Moniteau County

Monroe County

Montgomery County

Nodaway County

Osage County

Putnam County

Randolph County

Saline County

Schuyler County

Scotland County

Shelby County

Sullivan County

Warren County

Worth County

Rest of State: Unclassifiable/Attainment

Barry County

Barton County

Bates County

Benton County

Bollinger County

Butler County

Camden County

Cape Girardeau County

Carter County

Cedar County

Christian County

Crawford County

Dade County

Dallas County

Dent County

Douglas County

Dunklin County

Gasconade County

Greene County

Henry County

Hickory County

Howell County

Iron County

Jasper County

Johnson County

Laclede County

Lafayette County

Lawrence County

Madison County

Maries County

McDonald County

Miller County

Mississippi County

Morgan County

New Madrid County

Newton County

Oregon County

Ozark County

Pemiscot County

Perry County

Pettis County

Phelps County

Polk County

Pulaski County

Reynolds County

Ripley County

St. Clair County

St. Francois County

Ste. Genevieve County

Scott County

Shannon County

Stoddard County

Stone County

Taney County

Texas County

Vernon County

Washington County

Wayne County

Webster County

Wright County

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is June 15, 2004, unless otherwise noted.

Missouri—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation Classification

Date 1 Type Date 1 Type

St. Louis-St. Charles-Farmington, MO-IL 2:

Franklin County 9/20/2018 Attainment

Jefferson County 9/20/2018 Attainment

St. Charles County 9/20/2018 Attainment

St. Louis County 9/20/2018 Attainment

St. Louis City 9/20/2018 Attainment

Rest of State: 3 Unclassifiable/Attainment

Adair County

Andrew County

Atchison County

Audrain County

Barry County

Barton County

Bates County

Benton County

Bollinger County

Boone County

Buchanan County

Butler County

Caldwell County

Callaway County

Camden County

Cape Girardeau County

Carter County

Cass County

Cedar County

Chariton County

Christian County

Clark County

Clay County

Clinton County

Cole County

Cooper County

Crawford County

Dade County

Dallas County

Daviess County

DeKalb County

Dent County

Douglas County

Dunklin County

Gasconade County

Gentry County

Greene County

Grundy County

Harrison County

Henry County

Hickory County

Holt County

Howard County

Howell County

Iron County

Jackson County

Jasper County

Johnson County

Knox County

Laclede County

Lafayette County

Lawrence County

Lewis County

Lincoln County

Linn County

Livingston County

McDonald County

Macon County

Madison County

Maries County

Marion County

Mercer County

Miller County

Mississippi County

Moniteau County

Monroe County

Montgomery County

Morgan County

New Madrid County

Newton County

Nodaway County

Oregon County

Osage County

Ozark County

Pemiscot County

Perry County

Pettis County

Phelps County

Pike County

Platte County

Polk County

Pulaski County

Putnam County

Ralls County

Randolph County

Ray County

Reynolds County

Ripley County

St. Clair County

St. Genevieve County

St. Francois County

Saline County

Schuyler County

Scotland County

Scott County

Shannon County

Shelby County

Stoddard County

Stone County

Sullivan County

Taney County

Texas County

Vernon County

Warren County

Washington County

Wayne County

Webster County

Worth County

Wright County

1 This date is July 20, 2012, unless otherwise noted.

2 Excludes Indian country located in each area, unless otherwise noted.

3 Includes any Indian country in each county or area, unless otherwise specified.

4 Attainment date is extended to July 20, 2016.

Missouri—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area 1 Designation Classification

Date 2 Type Date 2 Type

St. Louis, MO-IL: Nonattainment 12/31/2024 Serious.

Franklin County (part).

Boles Township:

Jefferson County July 14, 2021 3

St. Charles County.

St. Louis County.

City of St. Louis.

Adair County 1/16/2018 Attainment/Unclassifiable

Andrew County 1/16/2018 Attainment/Unclassifiable

Atchison County 1/16/2018 Attainment/Unclassifiable

Audrain County 1/16/2018 Attainment/Unclassifiable

Barry County 1/16/2018 Attainment/Unclassifiable

Barton County 1/16/2018 Attainment/Unclassifiable

Bates County 1/16/2018 Attainment/Unclassifiable

Benton County 1/16/2018 Attainment/Unclassifiable

Bollinger County 1/16/2018 Attainment/Unclassifiable

Boone County 1/16/2018 Attainment/Unclassifiable

Buchanan County 1/16/2018 Attainment/Unclassifiable

Butler County 1/16/2018 Attainment/Unclassifiable

Caldwell County 1/16/2018 Attainment/Unclassifiable

Callaway County 1/16/2018 Attainment/Unclassifiable

Camden County 1/16/2018 Attainment/Unclassifiable

Cape Girardeau County 1/16/2018 Attainment/Unclassifiable

Carroll County 1/16/2018 Attainment/Unclassifiable

Carter County 1/16/2018 Attainment/Unclassifiable

Cass County 1/16/2018 Attainment/Unclassifiable

Cedar County 1/16/2018 Attainment/Unclassifiable

Chariton County 1/16/2018 Attainment/Unclassifiable

Christian County 1/16/2018 Attainment/Unclassifiable

Clark County 1/16/2018 Attainment/Unclassifiable

Clay County 1/16/2018 Attainment/Unclassifiable

Clinton County 1/16/2018 Attainment/Unclassifiable

Cole County 1/16/2018 Attainment/Unclassifiable

Cooper County 1/16/2018 Attainment/Unclassifiable

Crawford County 1/16/2018 Attainment/Unclassifiable

Dade County 1/16/2018 Attainment/Unclassifiable

Dallas County 1/16/2018 Attainment/Unclassifiable

Daviess County 1/16/2018 Attainment/Unclassifiable

DeKalb County 1/16/2018 Attainment/Unclassifiable

Dent County 1/16/2018 Attainment/Unclassifiable

Douglas County 1/16/2018 Attainment/Unclassifiable

Dunklin County 1/16/2018 Attainment/Unclassifiable

Franklin County (part) remainder Attainment/Unclassifiable

Gasconade County 1/16/2018 Attainment/Unclassifiable

Gentry County 1/16/2018 Attainment/Unclassifiable

Greene County 1/16/2018 Attainment/Unclassifiable

Grundy County 1/16/2018 Attainment/Unclassifiable

Harrison County 1/16/2018 Attainment/Unclassifiable

Henry County 1/16/2018 Attainment/Unclassifiable

Hickory County 1/16/2018 Attainment/Unclassifiable

Holt County 1/16/2018 Attainment/Unclassifiable

Howard County 1/16/2018 Attainment/Unclassifiable

Howell County 1/16/2018 Attainment/Unclassifiable

Iron County 1/16/2018 Attainment/Unclassifiable

Jackson County 1/16/2018 Attainment/Unclassifiable

Jasper County 1/16/2018 Attainment/Unclassifiable

Johnson County 1/16/2018 Attainment/Unclassifiable

Knox County 1/16/2018 Attainment/Unclassifiable

Laclede County 1/16/2018 Attainment/Unclassifiable

Lafayette County 1/16/2018 Attainment/Unclassifiable

Lawrence County 1/16/2018 Attainment/Unclassifiable

Lewis County 1/16/2018 Attainment/Unclassifiable

Lincoln County Attainment/Unclassifiable

Linn County 1/16/2018 Attainment/Unclassifiable

Livingston County 1/16/2018 Attainment/Unclassifiable

McDonald County 1/16/2018 Attainment/Unclassifiable

Macon County 1/16/2018 Attainment/Unclassifiable

Madison County 1/16/2018 Attainment/Unclassifiable

Maries County 1/16/2018 Attainment/Unclassifiable

Marion County 1/16/2018 Attainment/Unclassifiable

Mercer County 1/16/2018 Attainment/Unclassifiable

Miller County 1/16/2018 Attainment/Unclassifiable

Mississippi County 1/16/2018 Attainment/Unclassifiable

Moniteau County 1/16/2018 Attainment/Unclassifiable

Monroe County 1/16/2018 Attainment/Unclassifiable

Montgomery County 1/16/2018 Attainment/Unclassifiable

Morgan County 1/16/2018 Attainment/Unclassifiable

New Madrid County 1/16/2018 Attainment/Unclassifiable

Newton County 1/16/2018 Attainment/Unclassifiable

Nodaway County 1/16/2018 Attainment/Unclassifiable

Oregon County 1/16/2018 Attainment/Unclassifiable

Osage County 1/16/2018 Attainment/Unclassifiable

Ozark County 1/16/2018 Attainment/Unclassifiable

Pemiscot County 1/16/2018 Attainment/Unclassifiable

Perry County 1/16/2018 Attainment/Unclassifiable

Pettis County 1/16/2018 Attainment/Unclassifiable

Phelps County 1/16/2018 Attainment/Unclassifiable

Pike County 1/16/2018 Attainment/Unclassifiable

Platte County 1/16/2018 Attainment/Unclassifiable

Polk County 1/16/2018 Attainment/Unclassifiable

Pulaski County 1/16/2018 Attainment/Unclassifiable

Putnam County 1/16/2018 Attainment/Unclassifiable

Ralls County 1/16/2018 Attainment/Unclassifiable

Randolph County 1/16/2018 Attainment/Unclassifiable

Ray County 1/16/2018 Attainment/Unclassifiable

Reynolds County 1/16/2018 Attainment/Unclassifiable

Ripley County 1/16/2018 Attainment/Unclassifiable

St. Clair County 1/16/2018 Attainment/Unclassifiable

St. Francois County Attainment/Unclassifiable

Ste. Genevieve County 1/16/2018 Attainment/Unclassifiable

Saline County 1/16/2018 Attainment/Unclassifiable

Schuyler County 1/16/2018 Attainment/Unclassifiable

Scotland County 1/16/2018 Attainment/Unclassifiable

Scott County 1/16/2018 Attainment/Unclassifiable

Shannon County 1/16/2018 Attainment/Unclassifiable

Shelby County 1/16/2018 Attainment/Unclassifiable

Stoddard County 1/16/2018 Attainment/Unclassifiable

Stone County 1/16/2018 Attainment/Unclassifiable

Sullivan County 1/16/2018 Attainment/Unclassifiable

Taney County 1/16/2018 Attainment/Unclassifiable

Texas County 1/16/2018 Attainment/Unclassifiable

Vernon County 1/16/2018 Attainment/Unclassifiable

Warren County Attainment/Unclassifiable

Washington County 1/16/2018 Attainment/Unclassifiable

Wayne County 1/16/2018 Attainment/Unclassifiable

Webster County 1/16/2018 Attainment/Unclassifiable

Worth County 1/16/2018 Attainment/Unclassifiable

Wright County 1/16/2018 Attainment/Unclassifiable

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is August 3, 2018, unless otherwise noted.

3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area (e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date.

Missouri—1978 Lead NAAQS

Designated area Designation Classification

Date Type Date Type

Iron County (part)

Within boundaries of Dent Township 10/18/2000 Attainment

Iron County (part)

Within boundaries of Liberty and Arcadia Townships 10/29/2004 Attainment

Jefferson County (part)

Within city limits of Herculaneum 1/6/1992 Nonattainment

Dent County 1/6/1992 Unclassifiable

Holt County 1/6/1992 Unclassifiable

Rest of State Not Designated.

Missouri—2008 Lead NAAQS

Designated area Designation for the 2008 NAAQS a

Date 1 Type

Iron, Dent, and Reynolds Counties, MO:

Dent County (part) 12/31/2010 Nonattainment.

Sections 4, 9, 16, 21, 28, 33 of T34N, R2W

Iron County (part) 12/31/2010 Nonattainment.

Sections 6-7, 18-19, 30-32 of T34N, R1W and Sections 1-3, 10-15, 22-27, 34-36 of T34N, R2W.

Reynolds County (part) 12/31/2010 Nonattainment.

Sections 5-7 of T33N, R1W and Sections 1-3, 10-12 of T33N, R2W.

Jefferson County, MO:

Jefferson County (part) 12/31/2010 Nonattainment.

Within city limits of Herculaneum.

Rest of State Unclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 December 31, 2011 unless otherwise noted.