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8-Hour Ozone (2015) Maintenance Area (Redesignated from Nonattainment) Summary

Data is current as of August 31, 2022


Classification Number of Areas Number of Counties 2010 Population
Extreme 0 0 0
Severe 15 0 0 0
Serious 0 0 0
Moderate 0 0 0
Marginal 2 5 1,706,899
Marginal (Rural Transport) 2 1 17,035
SUBTOTAL 4 6 1,723,934
 
GRAND TOTAL 4 6 1,723,934

County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time across groupings. Multi-state nonattainment areas are not considered maintenance areas until all states in the area have been redesignated.