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Green Book Nonattainment Areas

Lead (1978) Nonattainment Areas

As of June 17, 2016
Current and historical design value data can be found at https://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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