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The 30 most polluted American cities ranked by EPA and Lung data
Ranked using the American Lung Association's State of the Air report and official U.S. EPA Air Quality System monitoring data across three strict criteria—year-round PM2.5 soot, 24-hour wildfire parti
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EPA monitors and American Lung Association data expose America's smoggiest hubs 
30. St. Louis, Missouri 
29. New York City, New York 
28. Spokane, Washington - AdvertisementSwipe or tap ▶ to continue countdown
27. El Paso, Texas 
26. Reno, Nevada 
25. Las Vegas, Nevada 
24. Redding, California - AdvertisementSwipe or tap ▶ to continue countdown
23. Merced, California 
22. Modesto, California 
21. Yakima, Washington 
20. Medford, Oregon - AdvertisementSwipe or tap ▶ to continue countdown
19. San Diego, California 
18. Salt Lake City, Utah 
17. Dallas-Fort Worth, Texas 
16. Denver, Colorado - AdvertisementSwipe or tap ▶ to continue countdown
15. Sacramento, California 
14. Cincinnati, Ohio 
13. Chicago, Illinois 
12. Pittsburgh, Pennsylvania - AdvertisementSwipe or tap ▶ to continue countdown
11. Indianapolis, Indiana 
10. Fairbanks, Alaska 
9. Cleveland, Ohio 
8. Houston, Texas - AdvertisementSwipe or tap ▶ to continue countdown
7. Phoenix, Arizona 
6. San Jose-San Francisco-Oakland, California 
5. Detroit, Michigan 
4. Eugene, Oregon - AdvertisementSwipe or tap ▶ to continue countdown
3. Los Angeles-Long Beach, California 
2. Fresno-Hanford-Corcoran, California 
1. Bakersfield-Delano, California - Advertisement🔥 UP NEXT IN THIS SERIES◫ 16 Slides
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▼ Visual Countdown
Using official U.S. EPA Air Quality System (AQS) monitors and the American Lung Association's State of the Air report, this countdown ranks 30 U.S. metros across three federal criteria: year-round PM2.5 particle soot (9.0 ug/m3 threshold), 24-hour particle spikes, and ground-level ozone smog.
Swipe or tap ▶ to begin the countdown
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