Best & Worst Cities for Ozone Pollution

Best and Worst Cities For Ozone Pollution Infographic

This information has been reviewed and approved by the American Lung Association, 2019.


Summary: Best and Worst Cities for Ozone Pollution


Cleanest Ozone Cities

  1. Anchorage, AL
  2. Bangor, ME
  3. Bellingham, WA
  4. Bowling Green, KY
  5. Brownsville, TX
  6. Brunswick, GA
  7. Burlington, VT
  8. Casper, WY
  9. Cedar Rapids, IA
  10. Clarksville, TN
  11. Cleveland, MS
  12. Columbia, MO
  13. Crestview, FL
  14. Des Moines, IA
  15. Dothan, AL
  16. Eau Claire, WI
  17. Fairbanks, AK
  18. Fargo, ND
  19. Fayetteville, NC
  20. Fayetteville, AR
  21. Florence, SC
  22. Fort Smith, AR
  23. Gadsden, AL
  24. Greenville, NC
  25. Hickory, NC
  26. Thibodaux, LA
  27. Idaho Falls, ID
  28. Jackson, MS


Most Ozone Polluted Cities

  1. Los Angeles, CA
  2. Visalia, CA
  3. Bakersfield, CA
  4. Fresno, CA
  5. Sacramento, CA
  6. San Diego, CA
  7. Phoenix, AZ
  8. San Jose, CA
  9. Houston, TX
  10. New York, NY
Source: American Lung Association, "State of Air" 2019

Bad or Ground-Level Ozone is created when vehicle and other emissions mix with pollutants and are heated by the sun.

Warmer weather increases ground-level ozone pollution.


Protect Your Lungs from Ozone Pollution

  • Watch local air quality advisories.
  • Take medications exactly as prescribed.
  • Stay indoors as much as possible and close windows.
  • Use circulate setting on home thermostat to keep polluted air out.
  • Exercise or be outside in the mornings when ozone levels are lowest. Stay indoors when pollution levels are high.
  • Call your doctor if symptoms increase or if you need more medication.

This information has been reviewed and approved by Anthony Gerber, MD (June 2019) 


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