Lead 1978 Standard Nonattainment AreasAs 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
|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.