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Sulfur Dioxide Maintenance Area Summary

As of December 14, 2012
Populations are based on the 2010 census
  Number of 
Classification Areas  Counties Population
Primary, Secondary  8  8  255,527
Primary  31  37  8,511,308
Secondary  6  6  257,662
 
   SUBTOTAL:   45   48   9,024,497
 
   GRAND TOTAL:   45  48  9,024,497

County and area subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings. Area totals only include full maintenance areas for a multi-state area.

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