Designated 2006 PM-2.5 and 1997 PM-2.5 Nonattainment Areas

As of November 13, 2009

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

		2006 PM-2.5 Nonattainment Areas				1997 PM-2.5 Nonattainment Areas
State(s)	Area Name	2000 Pop.	No. Ctys	Category/ Class	24-hr Design Value (2006-2008)	2000 Pop.	No. Ctys	Class	Annual Design Value (2001-2003)
AK	Fairbanks	70,940	1	NonAtt	41			Attain
AL	Birmingham	807,612	3	NonAtt	39	807,612	3	NonAtt	18.0
AL-TN-GA	Chattanooga			Attain		423,809	4	NonAtt	16.1
AZ	Nogales	25,621	1	NonAtt	40			Attain
CA	Chico	198,921	1	NonAtt	69			Attain
CA	Imperial County	123,231	1	NonAtt	36			Attain
CA	Los Angeles-South Coast Air Basin	14,593,587	4	NonAtt	49	14,593,587	4	NonAtt	27.8
CA	Sacramento	1,840,186	5	NonAtt	56			Attain
CA	San Francisco-Bay Area	6,608,710	9	NonAtt	36			Attain
CA	San Joaquin Valley	3,190,239	8	NonAtt	70	3,191,367	8	NonAtt	21.8
CA	Yuba CIty-Marysville	136,522	2	NonAtt	47			Attain
DC-MD-VA	Washington			Attain		4,377,935	14	NonAtt	15.8
GA	Atlanta			Attain		4,231,750	22	NonAtt	18.0
GA	Macon			Attain		154,837	2	NonAtt	15.2
GA	Rome, GA			Attain		90,565	1	NonAtt	15.7
IL-IN	Chicago-Gary-Lake County			Attain		8,757,808	10	NonAtt	17.7
IN	Evansville			Attain		277,402	6	NonAtt	16.2
IN	Indianapolis			Attain		1,329,185	5	NonAtt	16.7
KY-IN	Louisville			Attain		938,905	5	NonAtt	16.9
MD	Baltimore			Attain		2,512,431	6	NonAtt	16.7
MI	Detroit-Ann Arbor	4,833,493	7	NonAtt	37	4,833,493	7	NonAtt	19.5
MO-IL	St. Louis			Attain		2,486,562	9	NonAtt	17.5
MT	Libby			Attain		2,626	1	NonAtt	16.2
NC	Greensboro-Winston-Salem-High Point			Attain		568,294	2	NonAtt	15.8
NC	Hickory			Attain		141,685	1	NonAtt	15.5
NY-NJ-CT	New York	19,802,587	22	NonAtt	38	19,802,587	22	NonAtt	17.7
OH	Canton-Massillon	378,098	1	NonAtt	see Design Value Notes	378,098	1	NonAtt	17.3
OH	Cleveland-Akron-Lorain	2,752,208	6	NonAtt	38	2,775,447	7	NonAtt	18.3
OH	Columbus			Attain		1,448,503	5	NonAtt	16.7
OH	Dayton-Springfield			Attain		851,690	3	NonAtt	15.2
OH-KY-IN	Cincinnati-Hamilton			Attain		1,850,975	8	NonAtt	17.8
OH-WV	Steubenville-Weirton	132,008	3	NonAtt	41	132,008	3	NonAtt	17.8
OR	Klamath Falls	44,708	1	NonAtt	46			Attain
OR	Oakridge	4,036	1	NonAtt	40			Attain
PA	Allentown	579,156	2	NonAtt	36			Attain
PA	Harrisburg-Lebanon-Carlisle	967,550	4	NonAtt	36	585,799	3	NonAtt	15.8
PA	Johnstown	164,514	2	NonAtt	see Design Value Notes	164,431	2	NonAtt	15.8
PA	Lancaster	470,658	1	NonAtt	37	470,658	1	NonAtt	17.0
PA	Pittsburgh-Beaver Valley	21,519	1	NonAtt	53	21,600	1	NonAtt	21.2
		2,195,156	8	NonAtt	36	2,195,054	8	NonAtt	21.2
PA	Reading			Attain		373,638	1	NonAtt	16.4
PA	York			Attain		381,751	1	NonAtt	17.3
PA-NJ-DE	Philadelphia-Wilmington	5,536,911	9	NonAtt	36	5,536,911	9	NonAtt	16.4
TN	Knoxville	599,009	5	NonAtt	see Design Value Notes	599,008	5	NonAtt	16.8
UT	Provo	367,862	1	NonAtt	44			Attain
UT	Salt Lake City	1,405,532	5	NonAtt	48			Attain
UT-ID	Logan	102,100	2	NonAtt	36			Attain
WA	Seattle-Tacoma	471,590	1	NonAtt	44			Attain
WI	Milwaukee-Racine	1,489,762	3	NonAtt	37			Attain
WV	Charleston	251,662	2	NonAtt	36	251,662	2	NonAtt	17.1
WV-KY-OH	Huntington-Ashland			Attain		340,776	9	NonAtt	17.2
WV-MD	Martinsburg - Hagerstown			Attain		207,828	2	NonAtt	16.3
WV-OH	Parkersburg-Marietta			Attain		152,912	3	NonAtt	16.0
WV-OH	Wheeling			Attain		153,172	3	NonAtt	15.7

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