Tennessee Nonattainment/Maintenance Status for Each County by Year for All Criteria Pollutants

Data is current as of March 31, 2024

Listed by County, NAAQS, Area. The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.

* The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m³) is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016. (81 FR 58009)

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Important Notes Download National Dataset: dbf   |   xls    |   Data dictionary (PDF)

County	NAAQS	Area Name	Nonattainment in Year	Redesignation to Maintenance	Classification	Whole or/ Part County	Population (2010)	State/ County FIPS Codes
TENNESSEE
Anderson County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Whole	75,129	47/001
Anderson County	8-Hour Ozone (2008)	Knoxville, TN	12 13 14	08/12/2015	Marginal	Part	18,216	47/001
Anderson County	PM-2.5 (1997)-NAAQS revoked	Knoxville, TN	05 06 07 08 09 10 11 12 13 14 15 16	08/29/2017 *	Moderate	Whole	75,129	47/001
Anderson County	PM-2.5 (2006)	Knoxville-Sevierville-La Follette, TN	09 10 11 12 13 14 15 16	09/27/2017	Moderate	Whole	75,129	47/001
Benton County	Sulfur Dioxide (1971)	Benton County; (part) TVA Johnsonville, TN	92 93 94 95 96 97	01/26/1998		Part	16,489	47/005
Blount County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Whole	123,010	47/009
Blount County	8-Hour Ozone (2008)	Knoxville, TN	12 13 14	08/12/2015	Marginal	Whole	123,010	47/009
Blount County	PM-2.5 (1997)-NAAQS revoked	Knoxville, TN	05 06 07 08 09 10 11 12 13 14 15 16	08/29/2017 *	Moderate	Whole	123,010	47/009
Blount County	PM-2.5 (2006)	Knoxville-Sevierville-La Follette, TN	09 10 11 12 13 14 15 16	09/27/2017	Moderate	Whole	123,010	47/009
Cocke County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Part	1,666	47/029
Davidson County	1-Hour Ozone (1979)-NAAQS revoked	Nashville, TN	92 93 94 95	10/30/1996	Moderate	Whole	626,681	47/037
Fayette County	Lead (1978)	Fayette County, TN	93 94	10/17/1995		Part	38,033	47/047
Hamilton County	PM-2.5 (1997)-NAAQS revoked	Chattanooga, TN-GA-AL	05 06 07 08 09 10 11 12 13 14	11/04/2015 *	Moderate	Whole	336,463	47/065
Humphreys County	Sulfur Dioxide (1971)	Humphreys County; (part) TVA Johnsonville, TN	92 93 94 95 96 97	01/26/1998		Part	18,539	47/085
Jefferson County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Whole	51,407	47/089
Knox County	1-Hour Ozone (1979)-NAAQS revoked	Knoxville, TN	92	10/27/1993	Marginal	Whole	432,226	47/093
Knox County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Whole	432,226	47/093
Knox County	8-Hour Ozone (2008)	Knoxville, TN	12 13 14	08/12/2015	Marginal	Whole	432,226	47/093
Knox County	PM-2.5 (1997)-NAAQS revoked	Knoxville, TN	05 06 07 08 09 10 11 12 13 14 15 16	08/29/2017 *	Moderate	Whole	432,226	47/093
Knox County	PM-2.5 (2006)	Knoxville-Sevierville-La Follette, TN	09 10 11 12 13 14 15 16	09/27/2017	Moderate	Whole	432,226	47/093
Loudon County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Whole	48,556	47/105
Loudon County	PM-2.5 (1997)-NAAQS revoked	Knoxville, TN	05 06 07 08 09 10 11 12 13 14 15 16	08/29/2017 *	Moderate	Whole	48,556	47/105
Loudon County	PM-2.5 (2006)	Knoxville-Sevierville-La Follette, TN	09 10 11 12 13 14 15 16	09/27/2017	Moderate	Whole	48,556	47/105
Montgomery County	8-Hour Ozone (1997)-NAAQS revoked	Clarksville-Hopkinsville, TN-KY	04	11/21/2005	Former Subpart 1	Whole	172,331	47/125
Polk County	Sulfur Dioxide (1971)	Polk County, TN	92 93 94 95 96 97	01/26/1998		Whole	16,825	47/139
Roane County	PM-2.5 (1997)-NAAQS revoked	Knoxville, TN	05 06 07 08 09 10 11 12 13 14 15 16	08/29/2017 *	Moderate	Part	2,602	47/145
Roane County	PM-2.5 (2006)	Knoxville-Sevierville-La Follette, TN	09 10 11 12 13 14 15 16	09/27/2017	Moderate	Part	2,602	47/145
Rutherford County	1-Hour Ozone (1979)-NAAQS revoked	Nashville, TN	92 93 94 95	10/30/1996	Moderate	Whole	262,604	47/149
Sevier County	8-Hour Ozone (1997)-NAAQS revoked	Knoxville, TN	04 05 06 07 08 09 10	03/08/2011	Former Subpart 1	Whole	89,889	47/155
Shelby County	1-Hour Ozone (1979)-NAAQS revoked	Memphis, TN	92 93 94	02/16/1995	Marginal	Whole	927,644	47/157
Shelby County	8-Hour Ozone (1997)-NAAQS revoked	Memphis, TN-AR	04 05 06 07 08 09	02/03/2010	Moderate	Whole	927,644	47/157
Shelby County	8-Hour Ozone (2008)	Memphis, TN-MS-AR	12 13 14 15	07/25/2016	Marginal	Whole	927,644	47/157
Shelby County	Carbon Monoxide (1971)	Memphis, TN	92 93	09/26/1994	Moderate <= 12.7ppm	Whole	927,644	47/157
Shelby County	Lead (1978)	Shelby County, TN	92 93 94 95 96 97 98 99 00	07/02/2001		Part	2,226	47/157
Sullivan County	Lead (2008)	Bristol, TN	10 11 12 13 14 15	08/08/2016		Part	1,611	47/163
Sullivan County	Sulfur Dioxide (2010)	Sullivan County, TN	13 14 15 16 17 18 19 20 21 22 23 24	/ /		Part	15,289	47/163
Sumner County	1-Hour Ozone (1979)-NAAQS revoked	Nashville, TN	92 93 94 95	10/30/1996	Moderate	Whole	160,645	47/165
Williamson County	1-Hour Ozone (1979)-NAAQS revoked	Nashville, TN	92 93 94 95	10/30/1996	Moderate	Whole	183,182	47/187
Williamson County	Lead (1978)	Williamson County, TN	92 93 94 95 96 97 98	09/10/1999		Part	183,182	47/187
Wilson County	1-Hour Ozone (1979)-NAAQS revoked	Nashville, TN	92 93 94 95	10/30/1996	Moderate	Whole	113,993	47/189

Important Notes

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