Sulfur Dioxide (1971) Nonattainment AreasAs of October 01, 2015
Current and historical design value data can be found at http://www.epa.gov/airtrends/values.html
|Areas Listed Alphabetically||Designation||No.
|Armstrong Co, PA||Primary||1||4,516||3||PA|
|East Helena Area (Lewis and Clark Co.), MT||Primary, Secondary||1||2,669||8||MT|
|Hayden (Pinal County), AZ||Primary||1||4,844||9||AZ|
|Laurel Area (Yellowstone County), MT||Primary||1||6,525||8||MT|
|Salt Lake Co, UT||Primary, Secondary||1||1,029,655||8||UT|
|Tooele Co, UT||Primary, Secondary||1||58,218||8||UT|
|Warren Co, NJ||Primary, Secondary||1||108,696||2||NJ|
|9 Total Areas||9||1,217,123|
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.