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Green Book Nonattainment Areas

PM-10 (1987) Nonattainment Area Summary

As of June 17, 2016
Classification Number of Areas Number of Counties 2010 Population
Serious 6 7 4,812,371
Moderate 32 26 4,744,324
SUBTOTAL 38 32 9,556,695
GRAND TOTAL 38 32 9,556,695

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

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