Green Book

You are here: EPA Home > Green Book > PM-10 (1987) Nonattainment Area Summary

PM-10 (1987) Nonattainment Area Summary

Data is current as of August 31, 2021


Classification Number of Areas Number of Counties 2010 Population
Serious 5 5 4,527,094
Moderate 19 17 2,674,512
Nonattainment 0 0 0
SUBTOTAL 24 22 7,201,606
 
GRAND TOTAL 24 22 7,201,606

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