1997 8-Hr Ozone and Previous 1-Hr Ozone Nonattainment and Maintenance Areas

As of March 30, 2012

Ozone Classification Information | View Notes

Mouse over the No. Ctys to see the area name; click on them to see the associated counties. [Split] in No. Ctys column explained here.

		1997 8-Hr Ozone Nonattainment Areas					1997 8-Hr Ozone Maintenance Areas			1-Hr Ozone Nonattainment Areas			1-Hr Ozone Maintenance Areas
State(s)	General Area Name (see note)	2010 Pop.	No. Ctys	Category/ Class	8-Hr Design Value (2001- 2003)	1-Hr Design Value (2001- 2003)	2010 Pop.	No. Ctys	Category/ Class	2010 Pop.	No. Ctys	Category/ Class	2010 Pop.	No. Ctys	Category/ Class
AL	General Area Name (see note)	Birmingham						853,551	2	Subpar				853,551	2	Mar
AZ	Phoenix-Mesa	3,848,627	2	Subpar	0.087	0.111							3,763,324	1	Ser
CA	Amador and Calaveras Cos (Central Mtn),	83,669	2	Subpar	0.091	0.117
CA	Chico	220,000	1	Subpar	0.089	0.102				220,000	1	S185A
CA	Imperial County	174,528	1	Mod	0.087	0.142				174,528	1	S185A
CA	Kern Co (Eastern Kern)	95,314	1	Subpar	0.098	0.118							141,398	1	Ser
CA	Los Angeles-San Bernardino Cos(W Mojave)	868,350	2	Mod	0.106	0.138				1,194,366	3	Sev7
CA	Los Angeles-South Coast Air Basin	15,718,827	4	Ext	0.131	0.180				15,799,104	4	Ext
CA	Mariposa and Tuolumne Cos (Southern Mtn)	73,616	2	Subpar	0.091	0.113
CA	Monterey Bay												732,708	3	Mod
CA	Nevada Co. (Western Part)	82,393	1	Subpar	0.098	0.116
CA	Riverside Co, (Coachella Valley)	425,425	1	Sev5	0.108	0.133
CA	Sacramento Metro	2,243,911	6	Sev5	0.107	0.143				2,336,542	6	Sev5
CA	San Diego	3,093,459	1	Subpar	0.093	0.118							3,095,313	1	Ser
CA	San Francisco-Bay Area	6,970,997	9	Mar	0.086	0.123				6,896,958	9	Other
CA	San Joaquin Valley	3,842,586	8	Ext	0.115	0.151				3,830,257	8	Ext
CA	Santa Barbara-Santa Maria-Lompoc												423,895	1	Ser
CA	Sutter Co (Sutter Buttes)	33	1	Subpar	0.088	0.113				136,872	2	S185A
CA	Ventura County	823,360	1	Ser	0.095	0.124				823,318	1	Sev5
CO	Denver-Boulder-Greeley-Ft Collins-Love.	3,330,139	9	Subpar	0.087	0.114							2,770,524	7	S185A
CT	Greater Connecticut	1,629,115	5	Mod	0.095	0.139				2,666,958	8	Ser
DC-MD-VA	Washington	5,136,216	15	Mod	0.099	0.140				5,265,177	16	Sev5
FL	Jacksonville												864,263	1	S185A
FL	Miami-Fort Lauderdale-W. Palm Beach												5,564,635	3	Mod
FL	Tampa-St. Petersburg-Clearwater												2,145,768	2	Mar
GA	Atlanta	5,260,436	20	Mod	0.091	0.125							4,552,902	13	Sev5
GA	Macon						158,123	2	Subpar
GA	Murray County (Chattahoochee Nat. Forest Mtns)						6,231	1	Subpar
IL-IN	Chicago-Gary-Lake County	9,049,894	10 [Split]	Mod	0.101	0.134				9,022,088	10	Sev7
IN	Evansville						239,392	2	Subpar				179,703	1	Mar
IN	Fort Wayne						355,329	1	Subpar
IN	Greene County						33,165	1	Subpar
IN	Indianapolis						1,834,672	9	Subpar				903,393	1	Mar
IN	Jackson County						42,376	1	Subpar
IN	La Porte County						111,467	1	Mar
IN	Muncie						117,671	1	Subpar
IN	South Bend-Elkhart						464,490	2	Subpar				464,490	2	Mar
IN	Terre Haute						107,848	1	Subpar
KY	Edmonson County												12,161	1	Mar
KY	Lexington-Fayette												342,976	2	Mar
KY	Owensboro												97,517	2	Mar
KY	Paducah												32,690	2	Mar
KY-IN	Louisville						1,060,541	5	Subpar				953,892	5	Mod
LA	Baton Rouge						732,587	5	Mod	732,587	5	Sev5	22,802	1	Mar
LA	Beauregard Parish												35,654	1	Inc
LA	Grant Parish												22,309	1	Inc
LA	Lafayette												221,578	1	S185A
LA	Lafourche Parish												96,318	1	Inc
LA	Lake Charles												192,768	1	Mar
LA	New Orleans												865,058	4	S185A
LA	St. James Parish												22,102	1	Inc
LA	St. Mary Parish												54,650	1	Inc
MA	Boston-Lawrence-Worcester (E. Mass)	5,723,468	10	Mod	0.095	0.124				6,090,368	12	Ser
MA	Springfield (Western Mass)	824,161	4	Mod	0.094	0.132				824,161	4	Ser
MD	Baltimore	2,662,691	6	Ser	0.103	0.143				2,662,691	6	Sev5
MD	Kent County and Queen Anne's County						67,995	2	Mar				67,995	2	Mar
ME	Hancock, Knox, Lincoln & Waldo Cos						97,265	4	Subpar	74,193	2	Mod	93,204	2	Mar
ME	Portland						481,641	4	Mar	229,853	2	Mod
										514,098	3	Mod
MI	Allegan County						111,408	1	Subpar				111,408	1	Inc
MI	Benton Harbor						156,813	1	Subpar
MI	Benzie County						17,525	1	Subpar
MI	Cass County						52,293	1	Mar
MI	Detroit-Ann Arbor						4,804,635	8	Mar				4,704,743	7	Mod
MI	Flint						514,109	2	Subpar				425,790	1	S185A
MI	Grand Rapids						866,423	2	Subpar				866,423	2	Mod
MI	Huron County						33,118	1	Subpar
MI	Kalamazoo-Battle Creek						462,735	3	Subpar
MI	Lansing-East Lansing						464,036	3	Subpar
MI	Mason County						28,705	1	Subpar
MI	Muskegon						172,188	1	Mar				172,188	1	Mod
MI	Saginaw-Bay City-Midland												391,569	3	Inc
MO-IL	St. Louis	2,594,238	9	Mod	0.092	0.122							2,571,253	8	Ser
													22,985	1	Mar
MO-KS	Kansas City												1,687,103	5	Other
NC	Greensboro-Winston-Salem-High Point												1,001,955	4	Mod
NC	Haywood and Swain Cos (Great Smoky Mtn NP)						4,273	2	Subpar
NC	Raleigh-Durham-Chapel Hill						1,663,630	8	Subpar				1,186,305	3	Mod
NC	Rocky Mount						152,392	2	Subpar
NH	Boston-Manchester-Portsmouth(SE)	740,556	4	Mod	0.095	0.124				392,234	3	Mar
										206,398	2	Ser
NH	Cheshire County									77,117	1	Inc
NM	Sunland Park									12,345	1	Mar
NV	Las Vegas	1,918,819	1	Subpar	0.086	0.107
NV	Reno									421,407	1	Mar
NY	Albany-Schenectady-Troy	970,156	7	Subpar	0.087	0.115				937,407	6	Mar
NY	Buffalo-Niagara Falls	1,135,509	2	Subpar	0.099	0.116				1,135,509	2	Mar
NY	Essex County; Whiteface Mountain	465	1	Subpar	0.091	0.113				0	1	Mar
NY	Jamestown	134,905	1	Subpar	0.094	0.115
NY	Jefferson County	116,229	1	Mod	0.097	0.121				116,229	1	Mar
NY	Poughkeepsie	770,011	3	Mod	0.094	0.126				640,556	3	Mod
NY	Rochester	1,114,402	6	Subpar	0.088	0.110
NY-NJ-CT	New York-N. New Jersey-Long Island	20,217,137	24	Mod	0.102	0.146				19,776,927	24	Sev7
OH	Canton-Massillon						375,586	1	Subpar				375,586	1	Mar
OH	Cleveland-Akron-Lorain						2,881,937	8	Mod				2,881,937	8	Mod
OH	Columbus						1,754,632	6	Subpar				1,504,120	3	Mar
OH	Dayton-Springfield						937,565	4	Subpar				937,565	4	Mod
OH	Lima						106,331	1	Subpar
OH	Preble County												42,270	1	S185A
OH	Toledo						567,303	2	Subpar				567,303	2	Mod
OH-KY-IN	Cincinnati-Hamilton						2,004,983	9	Subpar				1,949,427	7	Mod
													42,040	1	S185A
OH-PA	Youngstown-Warren-Sharon						673,614	4	Subpar	565,773	3 [Split]	Mar	107,841	1	Inc
OH-WV	Steubenville-Weirton						124,454	3	Subpar				69,709	1	S185A
OR	Salem									388,564	2	Inc
OR-WA	Portland-Vancouver AQMA												1,672,360	4	Mar
PA	Allentown-Bethlehem-Easton						712,481	3	Subpar	821,173	4	Mar
PA	Altoona						127,089	1	Subpar	127,089	1	Mar
PA	Clearfield and Indiana Cos						170,522	2	Subpar
PA	Crawford County									88,765	1	Inc
PA	Erie						280,566	1	Subpar	280,566	1	Mar
PA	Franklin County						149,618	1	Subpar	149,618	1	Inc
PA	Greene County						38,686	1	Subpar	38,686	1	Inc
PA	Harrisburg-Lebanon-Carlisle						683,043	4	Subpar	683,043	4	Mar
PA	Johnstown						143,679	1	Subpar	221,421	2	Mar
PA	Juniata County									24,636	1	Inc
PA	Lancaster						519,445	1	Mar	519,445	1	Mar
PA	Lawrence County									91,108	1	Inc
PA	Northumberland County									94,528	1	Inc
PA	Pike County									57,369	1	Inc
PA	Pittsburgh-Beaver Valley	2,356,285	7	Subpar	0.094	0.120							2,356,285	7	Mod
PA	Reading						411,442	1	Subpar				411,442	1	Mod
PA	Schuylkill County									148,289	1	Inc
PA	Scranton-Wilkes-Barre						733,473	4	Subpar	800,768	5	Mar
PA	Snyder County									39,702	1	Inc
PA	State College						153,990	1	Subpar
PA	Susquehanna County									43,356	1	Inc
PA	Tioga County						41,981	1	Subpar
PA	Warren County									41,815	1	Inc
PA	Wayne County									52,822	1	Inc
PA	York						536,379	2	Subpar	536,379	2	Mar
PA-NJ-MD-DE	Philadelphia-Wilmin-Atlantic City	7,796,590	18	Mod	0.106	0.145				371,814	2	Mod
										6,651,064	14	Sev5
										197,145	1	Mar
RI	Providence (all of RI)	1,052,567	5	Mod	0.095	0.130				1,052,567	5	Ser
SC	Cherokee County												55,342	1	Mar
TN	Knoxville						821,883	7	Subpar				432,226	1	Mar
TN	Nashville												1,347,105	5	Mod
TN-AR	Memphis						978,546	2	Mod				927,644	1	Mar
TN-KY	Clarksville-Hopkinsville						246,286	2	Subpar
TX	Beaumont-Port Arthur						388,745	3	Mod	388,745	3	Ser
TX	Dallas-Fort Worth	6,221,286	9	Ser	0.100	0.135				5,622,128	4	Ser
TX	El Paso									800,647	1	Ser
TX	Houston-Galveston-Brazoria	5,891,999	8	Sev5	0.102	0.175				5,891,999	8	Sev7
TX	Victoria												86,793	1	Inc
UT	Salt Lake City												1,336,134	2	Mod
VA	Fredericksburg						275,644	3	Mod
VA	Madison and Page Cos (Shenandoah NP)						2,026	2	Subpar
VA	Norfolk-Virginia Beach-Newport News (Hampton Roads)						1,632,100	13	Mar				1,559,972	11	Mar
VA	Richmond-Petersburg						1,042,651	9	Mar				967,312	7	Mod
VA	Smyth County; White Top Mountain									0	1	Mar
WA	Seattle-Tacoma												3,439,810	3	Mar
WI	Door County						27,785	1	Subpar				27,785	1	Mar
WI	Kewaunee County						20,574	1	Subpar				20,574	1	Mod
WI	Manitowoc County						81,442	1	Subpar				81,442	1	Mod
WI	Milwaukee-Racine	1,917,742	6	Mod	0.101	0.134				1,917,742	6	Sev7
WI	Sheboygan	115,507	1	Mod	0.100	0.124							115,507	1	Mod
WI	Walworth County												102,228	1	Mar
WV	Charleston						248,549	2	Subpar				248,549	2	Mod
WV	Greenbrier County												35,480	1	Mar
WV-KY	Huntington-Ashland						188,342	3	Subpar				205,476	4	Mod
WV-OH	Parkersburg-Marietta						148,734	2	Subpar				86,956	1	Mod
WV-OH	Wheeling						147,950	3	Subpar

Area Name:

The "State(s) Area Name" column contains a common or general name for the nonattainment areas on the row, but may not reflect the exact name of any area on the row. This column cannot be exact since the nonattainment area for one pollutant may not contain the same counties, cities, or states as the nonattainment area for another pollutant on the same row. to see the area name or click on them to see the associated counties. The abbreviations listed in the "State(s)" column reflect all states identified in row. However, some states on a row may be nonattainment for some pollutants and not for others in the general area.

Split Area:

'Split' in the No. Ctys column indicates that the multi-state area has states that have been redesignated but the area does not become a maintenance area until all states in the area are redesignated. The whole area population is displayed in this report. Clicking on a "Split" No. Ctys will display information for the state(s) that have not been redesignated.

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