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Lead 1978 Standard Nonattainment Areas

As of December 05, 2013
Current and historical design value data can be found at http://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically Design Values
at Designation
No.
Counties
NAA
2010
Population
EPA
Region
State
(ug/m3)
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     

The county total is adjusted to count a single county only once (in the case where part of a county may be in multiple maintenance areas). Any multi-state areas are counted in the nonattainment report until all state areas have been redesignated.


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