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PSD Baseline Date Tracker


Adams County

Particulate Matter (10 microns or less) : 09/19/1978


Alcorn County

Nitrogen oxides : 01/26/2005

Particulate Matter (10 microns or less) : 01/26/2005

Sulfur Dioxide : 01/26/2005


Amite County

Nitrogen oxides : 08/02/1994

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Attala County

Nitrogen oxides : 10/28/1999

Particulate Matter (10 microns or less) : 10/28/1999

Sulfur Dioxide : 10/28/1999


Benton County

Nitrogen oxides : 06/07/2000

Particulate Matter (10 microns or less) : 06/07/2000

Sulfur Dioxide : 06/07/2000


Calhoun County

Nitrogen oxides : 03/01/1995

Particulate Matter (10 microns or less) : 04/13/2001


Choctaw County

Nitrogen oxides : 03/24/1997

Particulate Matter (10 microns or less) : 03/24/1997

Sulfur Dioxide : 03/24/1997


Claiborne County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Clarke County

Nitrogen oxides : 08/01/1992

Particulate Matter (10 microns or less) : 05/18/2000

Sulfur Dioxide : 05/18/2000


Clay County

Nitrogen oxides : 07/11/2001

Particulate Matter (10 microns or less) : 07/11/2001

Sulfur Dioxide : 07/11/2001


Coahoma County

Nitrogen oxides : 09/15/2000

Particulate Matter (10 microns or less) : 09/15/2000

Sulfur Dioxide : 09/15/2000


Copiah County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 02/19/1979

Sulfur Dioxide : 07/17/2001


Covington County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Desoto County

Nitrogen oxides : 08/04/1999

Particulate Matter (10 microns or less) : 08/04/1999

Sulfur Dioxide : 08/04/1999


Forrest County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Franklin County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Grenada County

Nitrogen oxides : 03/06/2006

Particulate Matter (10 microns or less) : 12/10/1986


Hancock County

Nitrogen oxides : 09/29/1987

Particulate Matter (10 microns or less) : 07/20/1978

Sulfur Dioxide : 07/20/1978


Harrison County

Nitrogen oxides : 06/28/1989

Particulate Matter (10 microns or less) : 06/28/1989


Hinds County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 06/17/1999

Sulfur Dioxide : 05/01/1979


Itawamba County

Nitrogen oxides : 03/22/2000

Particulate Matter (10 microns or less) : 03/22/2000


Jackson County

Nitrogen oxides : 06/30/1992

Particulate Matter (10 microns or less) : 04/09/1979

Sulfur Dioxide : 04/01/1980


Jasper County

Nitrogen oxides : 08/27/1996

Sulfur Dioxide : 07/17/2001


Jefferson County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Jefferson Davis County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Jones County

Nitrogen oxides : 01/26/1996

Particulate Matter (10 microns or less) : 01/26/1996

Sulfur Dioxide : 01/26/1996


Kemper County

Nitrogen oxides : 11/14/2000

Particulate Matter (10 microns or less) : 11/14/2000

Sulfur Dioxide : 11/14/2000


Lafayette County

Nitrogen oxides : 12/14/2000

Particulate Matter (10 microns or less) : 12/14/2000

Sulfur Dioxide : 12/14/2000


Lamar County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 04/30/1982

Sulfur Dioxide : 04/30/1982


Lauderdale County

Nitrogen oxides : 06/30/2006

Particulate Matter (10 microns or less) : 06/30/2006


Lawrence County

Nitrogen oxides : 05/01/1995

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Leake County

Particulate Matter (10 microns or less) : 07/11/1979


Lee County

Nitrogen oxides : 04/19/2000

Particulate Matter (10 microns or less) : 04/19/2000

Sulfur Dioxide : 04/19/2000


Lincoln County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Lowndes County

Nitrogen oxides : 09/01/1995

Particulate Matter (10 microns or less) : 08/14/1979

Sulfur Dioxide : 08/14/1979


Madison County

Nitrogen oxides : 01/17/2001

Particulate Matter (10 microns or less) : 01/17/2001

Sulfur Dioxide : 07/17/2001


Marion County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Marshall County

Nitrogen oxides : 01/26/2012

Particulate Matter (10 microns or less) : 01/26/2012

Particulate matter (2.5 microns or less) : 01/26/2012

Sulfur Dioxide : 01/26/2012


Monroe County

Nitrogen oxides : 07/01/1995

Particulate Matter (10 microns or less) : 07/01/1995

Sulfur Dioxide : 07/01/1995


Montgomery County

Nitrogen oxides : 03/06/2006


Neshoba County

Particulate Matter (10 microns or less) : 10/24/1978


Noxubee County

Nitrogen oxides : 02/29/2004

Particulate Matter (10 microns or less) : 02/29/2004


Panola County

Nitrogen oxides : 06/08/2001

Particulate Matter (10 microns or less) : 12/01/1980

Sulfur Dioxide : 12/01/1980


Pearl River County

Sulfur Dioxide : 03/19/1984


Perry County

Nitrogen oxides : 04/16/1993

Particulate Matter (10 microns or less) : 05/06/2004

Sulfur Dioxide : 07/17/2001


Pike County

Nitrogen oxides : 08/19/1999

Particulate Matter (10 microns or less) : 08/19/1999

Sulfur Dioxide : 03/22/2000


Pontotoc County

Nitrogen oxides : 02/28/2007

Particulate Matter (10 microns or less) : 02/28/2007


Prentiss County

Nitrogen oxides : 10/22/2007

Particulate Matter (10 microns or less) : 10/22/2007


Rankin County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 05/01/1978


Scott County

Nitrogen oxides : 07/17/2001

Sulfur Dioxide : 07/17/2001


Simpson County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Smith County

Nitrogen oxides : 09/01/2000

Particulate Matter (10 microns or less) : 09/01/2000

Sulfur Dioxide : 07/17/2001


Stone County

Particulate Matter (10 microns or less) : 04/04/2000


Union County

Nitrogen oxides : 12/21/2001

Particulate Matter (10 microns or less) : 12/21/2001

Sulfur Dioxide : 12/21/2001


Walthall County

Nitrogen oxides : 07/17/2001

Particulate Matter (10 microns or less) : 07/17/2001

Sulfur Dioxide : 07/17/2001


Warren County

Nitrogen oxides : 12/17/1993

Particulate Matter (10 microns or less) : 12/17/1993

Sulfur Dioxide : 12/17/1993


Washington County

Particulate Matter (10 microns or less) : 08/15/1979


Yazoo County

Particulate Matter (10 microns or less) : 06/21/2004