Mississippi—TSP

Open Table
Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
Adams County X
Alcorn County X
Amite County X
Attala County X
Benton County X
Bolivar County X
Calhoun County X
Carroll County X
Chickasaw County X
Choctaw County X
Clairborne County X
Clarke County X
Clay County X
Coahoma County X
Copiah County X
Covington County X
DeSoto County X
Forrest County X
Franklin County X
George County X
Greene County X
Grenada County X
Hancock County X
Harrison County X
Hinds County X
Holmes County X
Humphreys County X
Issaquena County X
Ittawamba County X
Jackson County X
Jasper County X
Jefferson County X
Jefferson Davis County X
Jones County X
Kemper County X
Lafayette County X
Lamar County X
Lauderdale County X
Lawerence County X
Leake County X
Lee County X
Leflore County X
Lincoln County X
Lowndes County X
Madison County X
Marion County X
Marshall County X
Monroe County X
Montgomery County X
Neshoba County X
Newton County X
Noxubee County X
Oktibbeha County X
Panola County X
Pearl River County X
Perry County X
Pike County X
Pontotoc County X
Prentiss County X
Quitman County X
Rankin County X
Scott County X
Sharkey County X
Simpson County X
Smith County X
Stone County X
Sunflower County X
Tallahatchie County X
Tate County X
Tippah County X
Tishomingo County X
Tunica County X
Union County X
Walthall County X
Warren County X
Washington County X
Wayne County X
Webster County X
Wilkinson County X
Winston County X
Yalobusha County X
Yazoo County X

Mississippi—1971 Sulfur Dioxide NAAQS

[Primary and Secondary]

Open Table
Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
Adams County X
Alcorn County X
Amite County X
Attala County X
Benton County X
Bolivar County X
Calhoun County X
Carroll County X
Chickasaw County X
Choctaw County X
Clairborne County X
Clarke County X
Clay County X
Coahoma County X
Copiah County X
Covington County X
DeSoto County X
Forest County X
Franklin County X
George County X
Greene County X
Grenada County X
Hancock County X
Harrison County X
Hinds County X
Holmes County X
Humphreys County X
Issaquena County X
Ittawamba County X
Jackson County X
Jasper County X
Jefferson County X
Jefferson Davis County X
Jones County X
Kemper County X
Lafayette County X
Lamar County X
Lauderdale County X
Lawrence County X
Leake County X
Lee County X
Leflore County X
Lincoln County X
Lowndes County X
Madison County X
Marion County X
Marshall County X
Monroe County X
Montgomery County X
Neshoba County X
Newton County X
Noxubee County X
Oktibbeha County X
Panola County X
Pearl River County X
Perry County X
Pike County X
Pontotoc County X
Prentiss County X
Quitman County X
Rankin County X
Scott County X
Sharkey County X
Simpson County X
Smith County X
Stone County X
Sunflower County X
Tallahatchie County X
Tate County X
Tippah County X
Tishomingo County X
Tunica County X
Union County X
Walthall County X
Warren County X
Washington County X
Wayne County X
Webster County X
Wilkinson County X
Winston County X
Yalobusha County X
Yazoo County X

Mississippi—2010 Sulfur Dioxide NAAQS

[Primary]

Open Table
Designated area1 Designation
Date2 Type
Adams County Attainment/Unclassifiable.
Alcorn County Attainment/Unclassifiable.
Amite County Attainment/Unclassifiable.
Attala County Attainment/Unclassifiable.
Benton County Attainment/Unclassifiable.
Bolivar County Attainment/Unclassifiable.
Calhoun County Attainment/Unclassifiable.
Carroll County Attainment/Unclassifiable.
Chickasaw County Attainment/Unclassifiable.
Choctaw County Attainment/Unclassifiable.
Claiborne County Attainment/Unclassifiable.
Clarke County Attainment/Unclassifiable.
Clay County Attainment/Unclassifiable.
Coahoma County Attainment/Unclassifiable.
Copiah County Attainment/Unclassifiable.
Covington County Attainment/Unclassifiable.
DeSoto County Attainment/Unclassifiable.
Forrest County Attainment/Unclassifiable.
Franklin County Attainment/Unclassifiable.
George County Attainment/Unclassifiable.
Greene County Attainment/Unclassifiable.
Grenada County Attainment/Unclassifiable.
Hancock County Attainment/Unclassifiable.
Harrison County Attainment/Unclassifiable.
Hinds County Attainment/Unclassifiable.
Holmes County Attainment/Unclassifiable.
Humphreys County Attainment/Unclassifiable.
Issaquena County Attainment/Unclassifiable.
Itawamba County Attainment/Unclassifiable.
Jackson County Attainment/Unclassifiable.
Jasper County Attainment/Unclassifiable.
Jefferson County Attainment/Unclassifiable.
Jefferson Davis County Attainment/Unclassifiable.
Jones County Attainment/Unclassifiable.
Kemper County Attainment/Unclassifiable.
Lafayette County Attainment/Unclassifiable.
Lamar County, MS 9/12/16 Attainment/Unclassifiable.
Lauderdale County Attainment/Unclassifiable.
Lawrence County Attainment/Unclassifiable.
Leake County Attainment/Unclassifiable.
Lee County Attainment/Unclassifiable.
Leflore County Attainment/Unclassifiable.
Lincoln County Attainment/Unclassifiable.
Lowndes County Attainment/Unclassifiable.
Madison County Attainment/Unclassifiable.
Marion County Attainment/Unclassifiable.
Marshall County Attainment/Unclassifiable.
Monroe County Attainment/Unclassifiable.
Montgomery County Attainment/Unclassifiable.
Neshoba County Attainment/Unclassifiable.
Newton County Attainment/Unclassifiable.
Noxubee County Attainment/Unclassifiable.
Oktibbeha County Attainment/Unclassifiable.
Panola County Attainment/Unclassifiable.
Pearl River County Attainment/Unclassifiable.
Perry County Attainment/Unclassifiable.
Pike County Attainment/Unclassifiable.
Pontotoc County Attainment/Unclassifiable.
Prentiss County Attainment/Unclassifiable.
Quitman County Attainment/Unclassifiable.
Rankin County Attainment/Unclassifiable.
Scott County Attainment/Unclassifiable.
Sharkey County Attainment/Unclassifiable.
Simpson County Attainment/Unclassifiable.
Smith County Attainment/Unclassifiable.
Stone County Attainment/Unclassifiable.
Sunflower County Attainment/Unclassifiable.
Tallahatchie County Attainment/Unclassifiable.
Tate County Attainment/Unclassifiable.
Tippah County Attainment/Unclassifiable.
Tishomingo County Attainment/Unclassifiable.
Tunica County Attainment/Unclassifiable.
Union County Attainment/Unclassifiable.
Walthall County Attainment/Unclassifiable.
Warren County Attainment/Unclassifiable.
Washington County Attainment/Unclassifiable.
Wayne County Attainment/Unclassifiable.
Webster County Attainment/Unclassifiable.
Wilkinson County Attainment/Unclassifiable.
Winston County Attainment/Unclassifiable.
Yalobusha County Attainment/Unclassifiable.
Yazoo County Attainment/Unclassifiable.

1Includes 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.

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

Mississippi—Carbon Monoxide

Open Table
Designated Area Designation Classification
Date1 Type Date1 Type
Statewide Unclassifiable/Attainment
Adams County
Alcorn County
Amite County
Attala County
Benton County
Bolivar County
Calhoun County
Carroll County
Chickasaw County
Choctaw County
Claiborne County
Clarke County
Clay County
Coahoma County
Copiah County
Covington County
DeSoto County
Forrest County
Franklin County
George County
Greene County
Grenada County
Hancock County
Harrison County
Hinds County
Holmes County
Humphreys County
Issaquena County
Itawamba County
Jackson County
Jasper County
Jefferson County
Jefferson Davis County
Jones County
Kemper County
Lafayette County
Lamar County
Lauderdale County
Lawrence County
Leake County
Lee County
Leflore County
Lincoln County
Lowndes County
Madison County
Marion County
Marshall County
Monroe County
Montgomery County
Neshoba County
Newton County
Noxubee County
Oktibbeha County
Panola County
Pearl River County
Perry County
Pike County
Pontotoc County
Prentiss County
Quitman County
Rankin County
Scott County
Sharkey County
Simpson County
Smith County
Stone County
Sunflower County
Tallahatchie County
Tate County
Tippah County
Tishomingo County
Tunica County
Union County
Walthall County
Warren County
Washington County
Wayne County
Webster County
Wilkinson County
Winston County
Yalobusha County
Yazoo County

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

Mississippi—Ozone (1-Hour Standard)2

Open Table
Designated area Designation Classification
Date1 Type Date1 Type
Memphis:
De Soto County 11/15/90 Unclassifiable/Attainment 11/15/90
Statewide Unclassifiable/Attainment
Adams County
Alcorn County
Amite County
Attala County
Benton County
Bolivar County
Calhoun County
Carroll County
Chickasaw County
Choctaw County
Claiborne County
Clarke County
Clay County
Coahoma County
Copiah County
Covington County
Forrest County
Franklin County
George County
Greene County
Grenada County
Hancock County
Harrison County
Hinds County
Holmes County
Humphreys County
Issaquena County
Itawamba County
Jackson County
Jasper County
Jefferson County
Jefferson Davis County
Jones County
Kemper County
Lafayette County
Lamar County
Lauderdale County
Lawrence County
Leake County
Lee County
Leflore County
Lincoln County
Lowndes County
Madison County
Marion County
Marshall County
Monroe County
Montgomery County
Neshoba County
Newton County
Noxubee County
Oktibbeha County
Panola County
Pearl River County
Perry County
Pike County
Pontotoc County
Prentiss County
Quitman County
Rankin County
Scott County
Sharkey County
Simpson County
Smith County
Stone County
Sunflower County
Tallahatchie County
Tate County
Tippah County
Tishomingo County
Tunica County
Union County
Walthall County
Warren County
Washington County
Wayne County
Webster County
Wilkinson County
Winston County
Yalobusha County
Yazoo County

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

2The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Mississippi.

Mississippi—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Classification
Date1 Type Date Type
Statewide:
Adams County Unclassifiable/Attainment.
Alcorn County Unclassifiable/Attainment.
Amite County Unclassifiable/Attainment.
Attala County Unclassifiable/Attainment.
Benton County Unclassifiable/Attainment.
Bolivar County Unclassifiable/Attainment.
Calhoun County Unclassifiable/Attainment.
Carroll County Unclassifiable/Attainment.
Chickasaw County Unclassifiable/Attainment.
Choctaw County Unclassifiable/Attainment.
Claiborne County Unclassifiable/Attainment.
Clarke County Unclassifiable/Attainment.
Clay County Unclassifiable/Attainment.
Coahoma County Unclassifiable/Attainment.
Copiah County Unclassifiable/Attainment.
Covington County Unclassifiable/Attainment.
DeSoto County Unclassifiable/Attainment.
Forrest County Unclassifiable/Attainment.
Franklin County Unclassifiable/Attainment.
George County Unclassifiable/Attainment.
Greene County Unclassifiable/Attainment.
Grenada County Unclassifiable/Attainment.
Hancock County Unclassifiable/Attainment.
Harrison County Unclassifiable/Attainment.
Hinds County Unclassifiable/Attainment.
Holmes County Unclassifiable/Attainment.
Humphreys County Unclassifiable/Attainment.
Issaquena County Unclassifiable/Attainment.
Itawamba County Unclassifiable/Attainment.
Jackson County Unclassifiable/Attainment.
Jasper County Unclassifiable/Attainment.
Jefferson County Unclassifiable/Attainment.
Jefferson Davis County Unclassifiable/Attainment.
Jones County Unclassifiable/Attainment.
Kemper County Unclassifiable/Attainment.
Lafayette County Unclassifiable/Attainment.
Lamar County Unclassifiable/Attainment.
Lauderdale County Unclassifiable/Attainment.
Lawrence County Unclassifiable/Attainment.
Leake County Unclassifiable/Attainment.
Lee County Unclassifiable/Attainment.
Leflore County Unclassifiable/Attainment.
Lincoln County Unclassifiable/Attainment.
Lowndes County Unclassifiable/Attainment.
Madison County Unclassifiable/Attainment.
Marion County Unclassifiable/Attainment.
Marshall County Unclassifiable/Attainment.
Monroe County Unclassifiable/Attainment.
Montgomery County Unclassifiable/Attainment.
Neshoba County Unclassifiable/Attainment.
Newton County Unclassifiable/Attainment.
Noxubee County Unclassifiable/Attainment.
Oktibbeha County Unclassifiable/Attainment.
Panola County Unclassifiable/Attainment.
Pearl River County Unclassifiable/Attainment.
Perry County Unclassifiable/Attainment.
Pike County Unclassifiable/Attainment.
Pontotoc County Unclassifiable/Attainment.
Prentiss County Unclassifiable/Attainment.
Quitman County Unclassifiable/Attainment.
Rankin County Unclassifiable/Attainment.
Scott County Unclassifiable/Attainment.
Sharkey County Unclassifiable/Attainment.
Simpson County Unclassifiable/Attainment.
Smith County Unclassifiable/Attainment.
Stone County Unclassifiable/Attainment.
Sunflower County Unclassifiable/Attainment.
Tallahatchie County Unclassifiable/Attainment.
Tate County Unclassifiable/Attainment.
Tippah County Unclassifiable/Attainment.
Tishomingo County Unclassifiable/Attainment.
Tunica County Unclassifiable/Attainment.
Union County Unclassifiable/Attainment.
Walthall County Unclassifiable/Attainment.
Warren County Unclassifiable/Attainment.
Washington County Unclassifiable/Attainment.
Wayne County Unclassifiable/Attainment.
Webster County Unclassifiable/Attainment.
Wilkinson County Unclassifiable/Attainment.
Winston County Unclassifiable/Attainment.
Yalobusha County Unclassifiable/Attainment.
Yazoo County Unclassifiable/Attainment.

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

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

Mississippi—2012 Annual PM2.5 NAAQS

[Primary]

Open Table
Designated area1 Designation Classification
Date2 Type Date2 Type
Statewide:
Adams County Unclassifiable/Attainment
Alcorn County Unclassifiable/Attainment
Amite County Unclassifiable/Attainment
Attala County Unclassifiable/Attainment
Benton County Unclassifiable/Attainment
Bolivar County Unclassifiable/Attainment
Calhoun County Unclassifiable/Attainment
Carroll County Unclassifiable/Attainment
Chickasaw County Unclassifiable/Attainment
Choctaw County Unclassifiable/Attainment
Claiborne County Unclassifiable/Attainment
Clarke County Unclassifiable/Attainment
Clay County Unclassifiable/Attainment
Coahoma County Unclassifiable/Attainment
Copiah County Unclassifiable/Attainment
Covington County Unclassifiable/Attainment
DeSoto County Unclassifiable/Attainment
Forrest County Unclassifiable/Attainment
Franklin County Unclassifiable/Attainment
George County Unclassifiable/Attainment
Greene County Unclassifiable/Attainment
Grenada County Unclassifiable/Attainment
Hancock County Unclassifiable/Attainment
Harrison County Unclassifiable/Attainment
Hinds County Unclassifiable/Attainment
Holmes County Unclassifiable/Attainment
Humphreys County Unclassifiable/Attainment
Issaquena County Unclassifiable/Attainment
Itawamba County Unclassifiable/Attainment
Jackson County Unclassifiable/Attainment
Jasper County Unclassifiable/Attainment
Jefferson County Unclassifiable/Attainment
Jefferson Davis County Unclassifiable/Attainment
Jones County Unclassifiable/Attainment
Kemper County Unclassifiable/Attainment
Lafayette County Unclassifiable/Attainment
Lamar County Unclassifiable/Attainment
Lauderdale County Unclassifiable/Attainment
Lawrence County Unclassifiable/Attainment
Leake County Unclassifiable/Attainment
Lee County Unclassifiable/Attainment
Leflore County Unclassifiable/Attainment
Lincoln County Unclassifiable/Attainment
Lowndes County Unclassifiable/Attainment
Madison County Unclassifiable/Attainment
Marion County Unclassifiable/Attainment
Marshall County Unclassifiable/Attainment
Monroe County Unclassifiable/Attainment
Montgomery County Unclassifiable/Attainment
Neshoba County Unclassifiable/Attainment
Newton County Unclassifiable/Attainment
Noxubee County Unclassifiable/Attainment
Oktibbeha County Unclassifiable/Attainment
Panola County Unclassifiable/Attainment
Pearl River County Unclassifiable/Attainment
Perry County Unclassifiable/Attainment
Pike County Unclassifiable/Attainment
Pontotoc County Unclassifiable/Attainment
Prentiss County Unclassifiable/Attainment
Quitman County Unclassifiable/Attainment
Rankin County Unclassifiable/Attainment
Scott County Unclassifiable/Attainment
Sharkey County Unclassifiable/Attainment
Simpson County Unclassifiable/Attainment
Smith County Unclassifiable/Attainment
Stone County Unclassifiable/Attainment
Sunflower County Unclassifiable/Attainment
Tallahatchie County Unclassifiable/Attainment
Tate County Unclassifiable/Attainment
Tippah County Unclassifiable/Attainment
Tishomingo County Unclassifiable/Attainment
Tunica County Unclassifiable/Attainment
Union County Unclassifiable/Attainment
Walthall County Unclassifiable/Attainment
Warren County Unclassifiable/Attainment
Washington County Unclassifiable/Attainment
Wayne County Unclassifiable/Attainment
Webster County Unclassifiable/Attainment
Wilkinson County Unclassifiable/Attainment
Winston County Unclassifiable/Attainment
Yalobusha County Unclassifiable/Attainment
Yazoo County Unclassifiable/Attainment

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

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

Mississippi—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Classification
Date1 Type Date Type
Statewide:
Adams County Unclassifiable/Attainment.
Alcorn County Unclassifiable/Attainment.
Amite County Unclassifiable/Attainment.
Attala County Unclassifiable/Attainment.
Benton County Unclassifiable/Attainment.
Bolivar County Unclassifiable/Attainment.
Calhoun County Unclassifiable/Attainment.
Carroll County Unclassifiable/Attainment.
Chickasaw County Unclassifiable/Attainment.
Choctaw County Unclassifiable/Attainment.
Claiborne County Unclassifiable/Attainment.
Clarke County Unclassifiable/Attainment.
Clay County Unclassifiable/Attainment.
Coahoma County Unclassifiable/Attainment.
Copiah County Unclassifiable/Attainment.
Covington County Unclassifiable/Attainment.
DeSoto County Unclassifiable/Attainment.
Forrest County Unclassifiable/Attainment.
Franklin County Unclassifiable/Attainment.
George County Unclassifiable/Attainment.
Greene County Unclassifiable/Attainment.
Grenada County Unclassifiable/Attainment.
Hancock County Unclassifiable/Attainment.
Harrison County Unclassifiable/Attainment.
Hinds County Unclassifiable/Attainment.
Holmes County Unclassifiable/Attainment.
Humphreys County Unclassifiable/Attainment.
Issaquena County Unclassifiable/Attainment.
Itawamba County Unclassifiable/Attainment.
Jackson County Unclassifiable/Attainment.
Jasper County Unclassifiable/Attainment.
Jefferson County Unclassifiable/Attainment.
Jefferson Davis County Unclassifiable/Attainment.
Jones County Unclassifiable/Attainment.
Kemper County Unclassifiable/Attainment.
Lafayette County Unclassifiable/Attainment.
Lamar County Unclassifiable/Attainment.
Lauderdale County Unclassifiable/Attainment.
Lawrence County Unclassifiable/Attainment.
Leake County Unclassifiable/Attainment.
Lee County Unclassifiable/Attainment.
Leflore County Unclassifiable/Attainment.
Lincoln County Unclassifiable/Attainment.
Lowndes County Unclassifiable/Attainment.
Madison County Unclassifiable/Attainment.
Marion County Unclassifiable/Attainment.
Marshall County Unclassifiable/Attainment.
Monroe County Unclassifiable/Attainment.
Montgomery County Unclassifiable/Attainment.
Neshoba County Unclassifiable/Attainment.
Newton County Unclassifiable/Attainment.
Noxubee County Unclassifiable/Attainment.
Oktibbeha County Unclassifiable/Attainment.
Panola County Unclassifiable/Attainment.
Pearl River County Unclassifiable/Attainment.
Perry County Unclassifiable/Attainment.
Pike County Unclassifiable/Attainment.
Pontotoc County Unclassifiable/Attainment.
Prentiss County Unclassifiable/Attainment.
Quitman County Unclassifiable/Attainment.
Rankin County Unclassifiable/Attainment.
Scott County Unclassifiable/Attainment.
Sharkey County Unclassifiable/Attainment.
Simpson County Unclassifiable/Attainment.
Smith County Unclassifiable/Attainment.
Stone County Unclassifiable/Attainment.
Sunflower County Unclassifiable/Attainment.
Tallahatchie County Unclassifiable/Attainment.
Tate County Unclassifiable/Attainment.
Tippah County Unclassifiable/Attainment.
Tishomingo County Unclassifiable/Attainment.
Tunica County Unclassifiable/Attainment.
Union County Unclassifiable/Attainment.
Walthall County Unclassifiable/Attainment.
Warren County Unclassifiable/Attainment.
Washington County Unclassifiable/Attainment.
Wayne County Unclassifiable/Attainment.
Webster County Unclassifiable/Attainment.
Wilkinson County Unclassifiable/Attainment.
Winston County Unclassifiable/Attainment.
Yalobusha County Unclassifiable/Attainment.
Yazoo County Unclassifiable/Attainment.

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

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

Mississippi—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Classification
Date1 Type Date Type
Statewide:
Adams County Unclassifiable/Attainment.
Alcorn County Unclassifiable/Attainment.
Amite County Unclassifiable/Attainment.
Attala County Unclassifiable/Attainment.
Benton County Unclassifiable/Attainment.
Bolivar County Unclassifiable/Attainment.
Calhoun County Unclassifiable/Attainment.
Carroll County Unclassifiable/Attainment.
Chickasaw County Unclassifiable/Attainment.
Choctaw County Unclassifiable/Attainment.
Claiborne County Unclassifiable/Attainment.
Clarke County Unclassifiable/Attainment.
Clay County Unclassifiable/Attainment.
Coahoma County Unclassifiable/Attainment.
Copiah County Unclassifiable/Attainment.
Covington County Unclassifiable/Attainment.
DeSoto County Unclassifiable/Attainment.
Forrest County Unclassifiable/Attainment.
Franklin County Unclassifiable/Attainment.
George County Unclassifiable/Attainment.
Greene County Unclassifiable/Attainment.
Grenada County Unclassifiable/Attainment.
Hancock County Unclassifiable/Attainment.
Harrison County Unclassifiable/Attainment.
Hinds County Unclassifiable/Attainment.
Holmes County Unclassifiable/Attainment.
Humphreys County Unclassifiable/Attainment.
Issaquena County Unclassifiable/Attainment.
Itawamba County Unclassifiable/Attainment.
Jackson County Unclassifiable/Attainment.
Jasper County Unclassifiable/Attainment.
Jefferson County Unclassifiable/Attainment.
Jefferson Davis County Unclassifiable/Attainment.
Jones County Unclassifiable/Attainment.
Kemper County Unclassifiable/Attainment.
Lafayette County Unclassifiable/Attainment.
Lamar County Unclassifiable/Attainment.
Lauderdale County Unclassifiable/Attainment.
Lawrence County Unclassifiable/Attainment.
Leake County Unclassifiable/Attainment.
Lee County Unclassifiable/Attainment.
Leflore County Unclassifiable/Attainment.
Lincoln County Unclassifiable/Attainment.
Lowndes County Unclassifiable/Attainment.
Madison County Unclassifiable/Attainment.
Marion County Unclassifiable/Attainment.
Marshall County Unclassifiable/Attainment.
Monroe County Unclassifiable/Attainment.
Montgomery County Unclassifiable/Attainment.
Neshoba County Unclassifiable/Attainment.
Newton County Unclassifiable/Attainment.
Noxubee County Unclassifiable/Attainment.
Oktibbeha County Unclassifiable/Attainment.
Panola County Unclassifiable/Attainment.
Pearl River County Unclassifiable/Attainment.
Perry County Unclassifiable/Attainment.
Pike County Unclassifiable/Attainment.
Pontotoc County Unclassifiable/Attainment.
Prentiss County Unclassifiable/Attainment.
Quitman County Unclassifiable/Attainment.
Rankin County Unclassifiable/Attainment.
Scott County Unclassifiable/Attainment.
Sharkey County Unclassifiable/Attainment.
Simpson County Unclassifiable/Attainment.
Smith County Unclassifiable/Attainment.
Stone County Unclassifiable/Attainment.
Sunflower County Unclassifiable/Attainment.
Tallahatchie County Unclassifiable/Attainment.
Tate County Unclassifiable/Attainment.
Tippah County Unclassifiable/Attainment.
Tishomingo County Unclassifiable/Attainment.
Tunica County Unclassifiable/Attainment.
Union County Unclassifiable/Attainment.
Walthall County Unclassifiable/Attainment.
Warren County Unclassifiable/Attainment.
Washington County Unclassifiable/Attainment.
Wayne County Unclassifiable/Attainment.
Webster County Unclassifiable/Attainment.
Wilkinson County Unclassifiable/Attainment.
Winston County Unclassifiable/Attainment.
Yalobusha County Unclassifiable/Attainment.
Yazoo County Unclassifiable/Attainment.

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

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

Mississippi—NO2 (1971 Annual Standard)

Open Table
Designated area Does not meet primary standards Cannot be classified or better than national standards
Statewide X

Mississippi—NO2 (2010 1-Hour Standard)

Open Table
Designated area Designationa
Date1 Type
Adams County Unclassifiable/Attainment.
Alcorn County Unclassifiable/Attainment.
Amite County Unclassifiable/Attainment.
Attala County Unclassifiable/Attainment.
Benton County Unclassifiable/Attainment.
Bolivar County Unclassifiable/Attainment.
Calhoun County Unclassifiable/Attainment.
Carroll County Unclassifiable/Attainment.
Chickasaw County Unclassifiable/Attainment.
Choctaw County Unclassifiable/Attainment.
Claiborne County Unclassifiable/Attainment.
Clarke County Unclassifiable/Attainment.
Clay County Unclassifiable/Attainment.
Coahoma County Unclassifiable/Attainment.
Copiah County Unclassifiable/Attainment.
Covington County Unclassifiable/Attainment.
DeSoto County Unclassifiable/Attainment.
Forrest County Unclassifiable/Attainment.
Franklin County Unclassifiable/Attainment.
George County Unclassifiable/Attainment.
Greene County Unclassifiable/Attainment.
Grenada County Unclassifiable/Attainment.
Hancock County Unclassifiable/Attainment.
Harrison County Unclassifiable/Attainment.
Hinds County Unclassifiable/Attainment.
Holmes County Unclassifiable/Attainment.
Humphreys County Unclassifiable/Attainment.
Issaquena County Unclassifiable/Attainment.
Itawamba County Unclassifiable/Attainment.
Jackson County Unclassifiable/Attainment.
Jasper County Unclassifiable/Attainment.
Jefferson County Unclassifiable/Attainment.
Jefferson Davis County Unclassifiable/Attainment.
Jones County Unclassifiable/Attainment.
Kemper County Unclassifiable/Attainment.
Lafayette County Unclassifiable/Attainment.
Lamar County Unclassifiable/Attainment.
Lauderdale County Unclassifiable/Attainment.
Lawrence County Unclassifiable/Attainment.
Leake County Unclassifiable/Attainment.
Lee County Unclassifiable/Attainment.
Leflore County Unclassifiable/Attainment.
Lincoln County Unclassifiable/Attainment.
Lowndes County Unclassifiable/Attainment.
Madison County Unclassifiable/Attainment.
Marion County Unclassifiable/Attainment.
Marshall County Unclassifiable/Attainment.
Monroe County Unclassifiable/Attainment.
Montgomery County Unclassifiable/Attainment.
Neshoba County Unclassifiable/Attainment.
Newton County Unclassifiable/Attainment.
Noxubee County Unclassifiable/Attainment.
Oktibbeha County Unclassifiable/Attainment.
Panola County Unclassifiable/Attainment.
Pearl River County Unclassifiable/Attainment.
Perry County Unclassifiable/Attainment.
Pike County Unclassifiable/Attainment.
Pontotoc County Unclassifiable/Attainment.
Prentiss County Unclassifiable/Attainment.
Quitman County Unclassifiable/Attainment.
Rankin County Unclassifiable/Attainment.
Scott County Unclassifiable/Attainment.
Sharkey County Unclassifiable/Attainment.
Simpson County Unclassifiable/Attainment.
Smith County Unclassifiable/Attainment.
Stone County Unclassifiable/Attainment.
Sunflower County Unclassifiable/Attainment.
Tallahatchie County Unclassifiable/Attainment.
Tate County Unclassifiable/Attainment.
Tippah County Unclassifiable/Attainment.
Tishomingo County Unclassifiable/Attainment.
Tunica County Unclassifiable/Attainment.
Union County Unclassifiable/Attainment.
Walthall County Unclassifiable/Attainment.
Warren County Unclassifiable/Attainment.
Washington County Unclassifiable/Attainment.
Wayne County Unclassifiable/Attainment.
Webster County Unclassifiable/Attainment.
Wilkinson County Unclassifiable/Attainment.
Winston County Unclassifiable/Attainment.
Yalobusha County Unclassifiable/Attainment.
Yazoo County Unclassifiable/Attainment.

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

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

Mississippi—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Open Table
Designated area Designationa Category/classification
Date1 Type Date1 Type
Statewide Unclassifiable/Attainment.
Adams County
Alcorn County
Amite County
Attala County
Benton County
Bolivar County
Calhoun County
Carroll County
Chickasaw County
Choctaw County
Claiborne County
Clarke County
Clay County
Coahoma County
Copiah County
Covington County
DeSoto County
Forrest County
Franklin County
George County
Greene County
Grenada County
Hancock County
Harrison County
Hinds County
Holmes County
Humphreys County
Issaquena County
Itawamba County
Jackson County
Jasper County
Jefferson County
Jefferson Davis County
Jones County
Kemper County
Lafayette County
Lamar County
Lauderdale County
Lawrence County
Leake County
Lee County
Leflore County
Lincoln County
Lowndes County
Madison County
Marion County
Marshall County
Monroe County
Montgomery County
Neshoba County
Newton County
Noxubee County
Oktibbeha County
Panola County
Pearl River County
Perry County
Pike County
Pontotoc County
Prentiss County
Quitman County
Rankin County
Scott County
Sharkey County
Simpson County
Smith County
Stone County
Sunflower County
Tallahatchie County
Tate County
Tippah County
Tishomingo County
Tunica County
Union County
Walthall County
Warren County
Washington County
Wayne County
Webster County
Wilkinson County
Winston County
Yalobusha County
Yazoo County

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

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

Mississippi—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Open Table
Designated area Designation Classification
Date1 Type Date1 Type
Memphis, TN-MS-AR:2
DeSoto County (part) Portion along MPO Lines 4/8/16 Attainment
Rest of State:3
Adams County Unclassifiable/Attainment
Alcorn County Unclassifiable/Attainment
Amite County Unclassifiable/Attainment
Attala County Unclassifiable/Attainment
Benton County Unclassifiable/Attainment
Bolivar County Unclassifiable/Attainment
Calhoun County Unclassifiable/Attainment
Carroll County Unclassifiable/Attainment
Chickasaw County Unclassifiable/Attainment
Choctaw County Unclassifiable/Attainment
Claiborne County Unclassifiable/Attainment
Clarke County Unclassifiable/Attainment
Clay County Unclassifiable/Attainment.
Coahoma County Unclassifiable/Attainment
Copiah County Unclassifiable/Attainment
Covington County Unclassifiable/Attainment
DeSoto County (remainder) Unclassifiable/Attainment
Forrest County Unclassifiable/Attainment
Franklin County Unclassifiable/Attainment
George County Unclassifiable/Attainment
Greene County Unclassifiable/Attainment
Grenada County Unclassifiable/Attainment
Hancock County Unclassifiable/Attainment
Harrison County Unclassifiable/Attainment
Hinds County Unclassifiable/Attainment
Holmes County Unclassifiable/Attainment
Humphreys County Unclassifiable/Attainment
Issaquena County Unclassifiable/Attainment
Itawamba County Unclassifiable/Attainment
Jackson County Unclassifiable/Attainment
Jasper County Unclassifiable/Attainment
Jefferson County Unclassifiable/Attainment
Jefferson Davis County Unclassifiable/Attainment
Jones County Unclassifiable/Attainment
Kemper County Unclassifiable/Attainment
Lafayette County Unclassifiable/Attainment
Lamar County Unclassifiable/Attainment
Lauderdale County Unclassifiable/Attainment
Lawrence County Unclassifiable/Attainment
Leake County Unclassifiable/Attainment
Lee County Unclassifiable/Attainment
Leflore County Unclassifiable/Attainment
Lincoln County Unclassifiable/Attainment
Lowndes County Unclassifiable/Attainment
Madison County Unclassifiable/Attainment
Marion County Unclassifiable/Attainment
Marshall County Unclassifiable/Attainment
Monroe County Unclassifiable/Attainment
Montgomery County Unclassifiable/Attainment
Neshoba County Unclassifiable/Attainment
Newton County Unclassifiable/Attainment
Noxubee County Unclassifiable/Attainment
Oktibbeha County Unclassifiable/Attainment
Panola County Unclassifiable/Attainment
Pearl River County Unclassifiable/Attainment
Perry County Unclassifiable/Attainment
Pike County Unclassifiable/Attainment
Pontotoc County Unclassifiable/Attainment
Prentiss County Unclassifiable/Attainment
Quitman County Unclassifiable/Attainment
Rankin County Unclassifiable/Attainment
Scott County Unclassifiable/Attainment
Sharkey County Unclassifiable/Attainment
Simpson County Unclassifiable/Attainment
Smith County Unclassifiable/Attainment
Stone County Unclassifiable/Attainment
Sunflower County Unclassifiable/Attainment
Tallahatchie County Unclassifiable/Attainment
Tate County. Unclassifiable/Attainment
Tippah County Unclassifiable/Attainment
Tishomingo County Unclassifiable/Attainment
Tunica County Unclassifiable/Attainment
Union County Unclassifiable/Attainment
Walthall County Unclassifiable/Attainment
Warren County Unclassifiable/Attainment
Washington County Unclassifiable/Attainment
Wayne County Unclassifiable/Attainment
Webster County Unclassifiable/Attainment
Wilkinson County Unclassifiable/Attainment
Winston County Unclassifiable/Attainment
Yalobusha County Unclassifiable/Attainment
Yazoo County Unclassifiable/Attainment

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

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

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

Mississippi—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Open Table
Designated area1 Designation Classification
Date2 Type Date Type
Adams County Attainment/Unclassifiable
Alcorn County Attainment/Unclassifiable
Amite County Attainment/Unclassifiable
Attala County Attainment/Unclassifiable
Benton County Attainment/Unclassifiable
Bolivar County Attainment/Unclassifiable
Calhoun County Attainment/Unclassifiable
Carroll County Attainment/Unclassifiable
Chickasaw County Attainment/Unclassifiable
Choctaw County Attainment/Unclassifiable
Claiborne County Attainment/Unclassifiable
Clarke County Attainment/Unclassifiable
Clay County Attainment/Unclassifiable
Coahoma County Attainment/Unclassifiable
Copiah County Attainment/Unclassifiable
Covington County Attainment/Unclassifiable
DeSoto County Attainment/Unclassifiable
Forrest County Attainment/Unclassifiable
Franklin County Attainment/Unclassifiable
George County Attainment/Unclassifiable
Greene County Attainment/Unclassifiable
Grenada County Attainment/Unclassifiable
Hancock County Attainment/Unclassifiable
Harrison County Attainment/Unclassifiable
Hinds County Attainment/Unclassifiable
Holmes County Attainment/Unclassifiable
Humphreys County Attainment/Unclassifiable
Issaquena County Attainment/Unclassifiable
Itawamba County Attainment/Unclassifiable
Jackson County Attainment/Unclassifiable
Jasper County Attainment/Unclassifiable
Jefferson County Attainment/Unclassifiable
Jefferson Davis County Attainment/Unclassifiable
Jones County Attainment/Unclassifiable
Kemper County Attainment/Unclassifiable
Lafayette County Attainment/Unclassifiable
Lamar County Attainment/Unclassifiable
Lauderdale County Attainment/Unclassifiable
Lawrence County Attainment/Unclassifiable
Leake County Attainment/Unclassifiable
Lee County Attainment/Unclassifiable
Leflore County Attainment/Unclassifiable
Lincoln County Attainment/Unclassifiable
Lowndes County Attainment/Unclassifiable
Madison County Attainment/Unclassifiable
Marion County Attainment/Unclassifiable
Marshall County Attainment/Unclassifiable
Monroe County Attainment/Unclassifiable
Montgomery County Attainment/Unclassifiable
Neshoba County Attainment/Unclassifiable
Newton County Attainment/Unclassifiable
Noxubee County Attainment/Unclassifiable
Oktibbeha County Attainment/Unclassifiable
Panola County Attainment/Unclassifiable
Pearl River County Attainment/Unclassifiable
Perry County Attainment/Unclassifiable
Pike County Attainment/Unclassifiable
Pontotoc County Attainment/Unclassifiable
Prentiss County Attainment/Unclassifiable
Quitman County Attainment/Unclassifiable
Rankin County Attainment/Unclassifiable
Scott County Attainment/Unclassifiable
Sharkey County Attainment/Unclassifiable
Simpson County Attainment/Unclassifiable
Smith County Attainment/Unclassifiable
Stone County Attainment/Unclassifiable
Sunflower County Attainment/Unclassifiable
Tallahatchie County Attainment/Unclassifiable
Tate County Attainment/Unclassifiable
Tippah County Attainment/Unclassifiable
Tishomingo County Attainment/Unclassifiable
Tunica County Attainment/Unclassifiable
Union County Attainment/Unclassifiable
Walthall County Attainment/Unclassifiable
Warren County Attainment/Unclassifiable
Washington County Attainment/Unclassifiable
Wayne County Attainment/Unclassifiable
Webster County Attainment/Unclassifiable
Wilkinson County Attainment/Unclassifiable
Winston County Attainment/Unclassifiable
Yalobusha County Attainment/Unclassifiable
Yazoo County Attainment/Unclassifiable

1Includes 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.

2This date is January 16, 2018, unless otherwise noted.

Mississippi—2008 Lead NAAQS

Open Table
Designated area Designation for the 2008 NAAQSa
Date1 Type
Whole State Unclassifiable/Attainment.

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

1December 31, 2011 unless otherwise noted.

[43 FR 8964, Mar. 3, 1978]


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