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Sulfur Dioxide (1971) Nonattainment Area Summary

Data is current as of October 31, 2020


Designation Number of Areas Number of Counties 2010 Population
Primary 5 4 17,885
Primary, Secondary 3 3 1,196,569
SUBTOTAL 8 7 1,214,454
 
GRAND TOTAL 8 7 1,214,454

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