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Sulfur Dioxide (2010) Maintenance Area (Redesignated from Nonattainment) Summary

Data is current as of May 31, 2019


Number of Areas Number of Counties 2010 Population
4 5 270,799

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