Designated 1997 PM-2.5 Nonattainment Areas Compared to 2006 PM-2.5 and 1997 8-Hr Ozone Nonattainment Areas

As of November 13, 2009

8-Hr Ozone classified area designations for the 1997 standard were effective on June 15, 2004. Thirteen (13) 8-Hr EAC areas were designated attainment on April 15, 2008.
1997 PM-2.5 area designations were effective on April 5, 2005. 2006 PM-2.5 area designations are effective on December 14, 2009.

Mouse over the No. Ctys to see the area name; click on them to see the associated counties. | Design Value Notes | Ozone Notes

		1997 PM-2.5 Nonattainment Areas				2006 PM-2.5 Nonattainment Areas				1997 8-HR OZONE Nonattainment Areas
State(s)	Area Name	2000 Pop.	No. Ctys	Category/ Class	Annual Design Value (2001-2003)	2000 Pop.	No. Ctys	Class	24-hr Design Value (2006-2008)	2000 Pop.	No. Ctys	Class	Design Value (2001-2003)
AL	Birmingham	807,612	3	NonAtt	18.0	807,612	3	NonAtt	39			Attain
AL-TN-GA	Chattanooga	423,809	4	NonAtt	16.1			Attain				Attain
CA	Los Angeles-South Coast Air Basin	14,593,587	4	NonAtt	27.8	14,593,587	4	NonAtt	49	14,593,587	4	Sev7	0.131
CA	San Joaquin Valley	3,191,367	8	NonAtt	21.8	3,190,239	8	NonAtt	70	3,191,367	8	Ser	0.115
DC-MD-VA	Washington	4,377,935	14	NonAtt	15.8			Attain		4,452,498	15	Mod	0.099
GA	Atlanta	4,231,750	22	NonAtt	18.0			Attain		4,228,492	20	Mod	0.091
GA	Macon	154,837	2	NonAtt	15.2			Attain				Attain
GA	Rome, GA	90,565	1	NonAtt	15.7			Attain				Attain
IL-IN	Chicago-Gary-Lake County	8,757,808	10	NonAtt	17.7			Attain		8,757,808	10	Mod	0.101
IN	Evansville	277,402	6	NonAtt	16.2			Attain				Attain
IN	Indianapolis	1,329,185	5	NonAtt	16.7			Attain				Attain
KY-IN	Louisville	938,905	5	NonAtt	16.9			Attain				Attain
MD	Baltimore	2,512,431	6	NonAtt	16.7			Attain		2,512,431	6	Mod	0.103
MI	Detroit-Ann Arbor	4,833,493	7	NonAtt	19.5	4,833,493	7	NonAtt	37			Attain
MO-IL	St. Louis	2,486,562	9	NonAtt	17.5			Attain		2,504,603	9	Mod	0.092
MT	Libby	2,626	1	NonAtt	16.2			Attain				Attain
NC	Greensboro-Winston-Salem-High Point	568,294	2	NonAtt	15.8			Attain				Attain
NC	Hickory	141,685	1	NonAtt	15.5			Attain				Attain
NY-NJ-CT	New York	19,802,587	22	NonAtt	17.7	19,802,587	22	NonAtt	38	19,634,122	24	Mod	0.102
OH	Canton-Massillon	378,098	1	NonAtt	17.3	378,098	1	NonAtt	See Design Value Notes			Attain
OH	Cleveland-Akron-Lorain	2,775,447	7	NonAtt	18.3	2,752,208	6	NonAtt	38			Attain
OH	Columbus	1,448,503	5	NonAtt	16.7			Attain				Attain
OH	Dayton-Springfield	851,690	3	NonAtt	15.2			Attain				Attain
OH-KY-IN	Cincinnati-Hamilton	1,850,975	8	NonAtt	17.8			Attain				Attain
OH-KY-IN				Attain				Attain		1,891,518	9	Subpar	0.096
OH-WV	Steubenville-Weirton	132,008	3	NonAtt	17.8	132,008	3	NonAtt	41			Attain
PA	Harrisburg-Lebanon-Carlisle	585,799	3	NonAtt	15.8	967,550	4	NonAtt	36			Attain
PA	Johnstown	164,431	2	NonAtt	15.8	164,514	2	NonAtt	See Design Value Notes			Attain
PA	Lancaster	470,658	1	NonAtt	17.0	470,658	1	NonAtt	37			Attain
	Pittsburgh-Beaver Valley	21,600	1	NonAtt	21.2	21,519	1	NonAtt	53			Attain
PA		2,195,054	8	NonAtt	21.2	2,195,156	8	NonAtt	36	2,431,087	7	Subpar	0.094
PA	Reading	373,638	1	NonAtt	16.4			Attain				Attain
PA	York	381,751	1	NonAtt	17.3			Attain				Attain
PA-NJ-DE	Philadelphia-Wilmington	5,536,911	9	NonAtt	16.4	5,536,911	9	NonAtt	36			Attain
PA-NJ-DE				Attain				Attain		7,333,475	18	Mod	0.106
TN	Knoxville	599,008	5	NonAtt	16.8	599,009	5	NonAtt	See Design Value Notes	713,755	7	Subpar	0.092
WV	Charleston	251,662	2	NonAtt	17.1	251,662	2	NonAtt	36			Attain
WV-KY-OH	Huntington-Ashland	340,776	9	NonAtt	17.2			Attain				Attain
WV-MD	Martinsburg - Hagerstown	207,828	2	NonAtt	16.3			Attain				Attain
WV-OH	Parkersburg-Marietta	152,912	3	NonAtt	16.0			Attain				Attain
WV-OH	Wheeling	153,172	3	NonAtt	15.7			Attain				Attain

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