POLLUTION LOCATOR|Smog and Particulates | Rank Counties by Health Risks


Health Risks from Criteria Air Pollutants
Ranked by (select your ranking criteria)

in
    (explain)
Rank County Person-days in
exceedance of NAAQS
1. SAN BERNARDINO, CA 1,859,678
2. RIVERSIDE, CA 1,782,650
3. ALLEGHENY, PA 1,261,303
4. MISSOULA, MT 295,848
5. FLATHEAD, MT 79,485
6. LAKE, MT 54,394
7. KAY, OK 47,260
8. RAVALLI, MT 38,662