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PM-2.5 (2006) Nonattainment Area Summary

Data is current as of June 20, 2017


Classification Number of Areas Number of Counties 2010 Population
Serious 5 19 21,828,537
Moderate 11 27 10,510,490
SUBTOTAL 16 46 32,339,027
 
GRAND TOTAL 16 46 32,339,027

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