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Lead (1978) Nonattainment Areas

As of July 02, 2014
Current and historical design value data can be found at http://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically No.
Counties
NAA
2010
Population
EPA
Region
State
East Helena Area (Lewis and Clark Co.), MT 1 2,669    8 MT
Jefferson County (part); Herculaneum, MO 1 2,560    7 MO
 
2 Total Areas 2 5,229     

No. of Counties reflects the number of counties in an area, while the total count only counts a county once and doesn't double count the county if it is in more than area.

Multi-state areas are counted in the nonattainment report until all state areas have been redesignated.


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