Technology Transfer Network / NAAQS
Ozone Implementation
Ozone Nonattainment Areas Which Were Revoked Without Maintenance Plans
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
As of July 20, 2000
Number of Number of Population Classification Areas Counties (1000s) Serious 3 18 6,690 Moderate 6 13 1,759 Marginal 17 37 6,087 SUBTOTAL: 26 66 14,536 Section 185A 4 10 2,422 Incomplete Data 16 19 1,640 SUBTOTAL: 20 29 4,062 GRAND TOTAL: 46 95 18,598 County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings. "Section 185A" was previously called "Transitional".