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Sulfur Dioxide (1971) Nonattainment Area Summary
Sulfur Dioxide (1971) Nonattainment Area Summary
Data is current as of March 31, 2025Designation | Number of Areas | Number of Counties | 2010 Population |
---|---|---|---|
Primary | 5 | 4 | 17,885 |
Primary, Secondary | 2 | 2 | 1,087,873 |
Secondary | 0 | 0 | 0 |
SUBTOTAL | 7 | 6 | 1,105,758 |
GRAND TOTAL | 7 | 6 | 1,105,758 |
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