10 Worst Smog Cities in America
Medically Reviewed by Poonam Sachdev on June 25, 2022
Written by Susan Bernstein
Worst (and Best) Cities for Smog
1/18
No. 10: San Francisco
2/18
No. 8 (Tie): Salt Lake City
3/18
No. 8 (Tie): Denver
4/18
No. 7: San Diego, CA
5/18
No. 6: Sacramento, CA
6/18
No. 5: Phoenix, AZ
7/18
No. 4: Fresno, CA
8/18
No. 3: Visalia, CA
9/18
No. 2: Bakersfield, CA
10/18
No. 1: Los Angeles
11/18
Bakersfield, CA, and Year-Round Particle Pollution
12/18
Cleanest Cities
13/18
Burlington, VT
14/18
Charlottesville, VA
15/18
Elmira-Corning, NY
16/18
Honolulu
17/18
Wilmington, NC
18/18