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8-Hour Ozone (2008) Maintenance Area (Redesignated from Nonattainment) Summary
8-Hour Ozone (2008) Maintenance Area (Redesignated from Nonattainment) Summary
Data is current as of June 30, 2021| Classification | Number of Areas | Number of Counties | 2010 Population |
|---|---|---|---|
| Moderate | 3 | 16 | 4,868,524 |
| Marginal | 9 | 65 | 18,667,921 |
| SUBTOTAL | 12 | 81 | 23,536,445 |
| GRAND TOTAL | 12 | 81 | 23,536,445 |
County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings. Multi-state nonattainment areas are not considered maintenance areas until all states in the area have been redesignated.