8-Hour Ozone Nonattainment Area Summary with History

As of November 13, 2009
Populations are based on 2000 census

	NUMBER OF AREAS				NUMBER OF COUNTIES				POPULATION
	Original	Adjusted			Original	Adjusted			Original	Adjusted
Classification	2004	2004	Today	Redesignated	2004	2004	Today	Redesignated	2004	2004	Today	Redesignated

Severe 17	1	1	1	0	4	4	4	0	14,593,587	14,593,587	14,593,587	0
Severe 15	0	1	1	0	0	8	8	0	0	4,669,571	4,669,571	0
Serious	3	4	4	0	15	16	16	0	5,494,465	6,247,662	6,247,662	0
Moderate	30	25	23	2	185	182	171	11	81,010,125	74,266,026	71,118,075	3,147,951
Marginal	7	10	1	9	55	49	9	40	13,932,637	15,253,968	6,541,828	8,712,140

SUBTOTALS:	41	41	30	11	255	306	204	102	115,030,814	126,890,905	103,170,723	23,720,182

Former Subpart 1	71	72	22	50	172	181	66	115	34,432,102	37,243,682	19,173,364	18,070,318

SUBTOTALS:	71	72	22	50	172	181	66	115	34,432,102	37,243,682	19,173,364	18,070,318

Marginal EAC	1	0	0	0	8	0	0	0	1,285,879	0	0	0
Subpart 1 EAC	13	0	0	0	41	0	0	0	8,523,124	0	0	0

SUBTOTALS:	14	0	0	0	49	0	0	0	9,809,003	0	0	0


GRAND TOTALS:	126	113	52	61	474	434	268	166	159,271,919	152,274,496	122,344,087	29,930,409

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order). The Subpart 1 areas in the Greenbook are listed as "Former Subpart 1" until reclassification of the areas is finalized. Proposed reclassifications were published on January 16, 2009 (74 FR 2936).

* See attached adjustments to original 2004 nonattainment areas. County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groups.
The Greensboro EAC area was reclassified from Moderate EAC to Marginal EAC on November 2004. This table reflects the original area status after the reclassfication to Marginal EAC. Based on air quality data from 2005, 2006 and the first three quarters of 2007, the Denver CO Subpart 1 EAC area was designated nonattainment for 8-hour Ozone, effective November 20, 2007. The remaining thirteen (13) 8-Hr EAC areas were designated attainment on April 15, 2008.