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Carbon Monoxide Maintenance Area Summary

As of December 05, 2013
Populations are based on the 2010 census

  Number of 
Classification Areas  Counties Population

Serious  7  16  23,548,401
Moderate > 12.7ppm  4  19  18,345,975
Moderate <= 12.7ppm  32  64  25,770,701
 
   SUBTOTAL:   43   97   67,665,077
 
Not Classified  34  40  8,145,840
 
   SUBTOTAL:   34   40   8,145,840
 

   GRAND TOTAL:   77  131  75,810,917

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.

The Oshkosh Wisconsin area is not included in the totals above. In the August 17, 1994 Federal Register, EPA redesignated Oshkosh from unclassifiable to attainment for carbon monoxide (effective on October 17, 1994: see 59 FR 42168).


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