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Sulfur Dioxide (2010) Nonattainment Area Summary with History

Data is current as of August 31, 2021

Original SO2 (2010) areas were designated effective October 4, 2013.


  NUMBER OF AREAS NUMBER OF COUNTIES 2010 POPULATION
Classif. Original 2013 Baseline Adjusted
Baseline*
Today Redesig Original 2013 Baseline Adjusted
Baseline*
Today Redesig Original 2013 Baseline Adjusted
Baseline*
Today Redesig
Nonattainment 29 49 33 16 38 66 43 23 1,935,225 3,335,463 2,159,207 1,176,256
SUBTOTAL 29 49 33 16 38 66 43 23 1,935,225 3,335,463 2,159,207 1,176,256
   
GRAND
TOTAL
29 49 33 16 38 66 43 23 1,935,225 3,335,463 2,159,207 1,176,256

* Please Note: Changes can occur that adjust the original baseline counts, e.g., classification changes, area boundary changes, new areas designated nonattainment. See the report listing these adjustments to original 2013 nonattainment areas.

County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time across groups.
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