Green Book Nonattainment Areas
PM-2.5 (1997) Nonattainment AreasAs of June 17, 2016 | * Design Value notes
Current and historical design value data can be found at https://www.epa.gov/airtrends/values.html
|Areas Listed Alphabetically||Design Values
|Classification||No. Counties NAA||2010 Population||EPA Region||State|
|Los Angeles-South Coast Air Basin, CA||27.8||Moderate||4||15,716,335||9||CA|
|San Joaquin Valley, CA||21.8||Serious||8||3,842,165||9||CA|
|St. Louis, MO-IL||17.5||Moderate||9||2,572,706||7-5||MO-IL|
|7 Total Areas||33||23,861,851|
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.