Most Polluted Cities According to the American Lung Association

Top 75 Most Polluted Cities According to the American Lung Association
See also Disaster Relief Maps for air pollution and fire maps. 

 "State of the Air" ranks the most polluted cities in the United States based on various air quality measures. Here are some examples of cities that have historically been cited as having poor air quality in the ALA's reports:

Los Angeles-Long Beach, CA: Los Angeles and its surrounding areas have consistently ranked among the most polluted cities in the United States due to factors such as high population density, vehicular emissions, industrial activities, and geographical features that trap pollutants.

Bakersfield, CA: Located in California's San Joaquin Valley, Bakersfield often experiences poor air quality due to factors like agricultural activities, oil and gas production, and geographical conditions that contribute to the trapping of pollutants.

Fresno-Madera-Hanford, CA: This region in California's Central Valley has been identified as having significant air pollution issues, primarily due to agricultural operations, vehicle emissions, and geographical factors.

Visalia-Porterville-Hanford, CA: Also located in California's Central Valley, this region has high levels of particulate matter and ozone pollution, primarily associated with agricultural activities, vehicle emissions, and weather patterns.

Phoenix-Mesa-Scottsdale, AZ: Phoenix and its metropolitan area have experienced air pollution problems, particularly with high levels of particulate matter and ozone pollution. Factors include vehicle emissions, dust storms, and geographical conditions that contribute to the trapping of pollutants.

1. Bakersfield, California
2. Fresno-Madera-Hanford, California
3. Visalia, California
4. Los Angeles-Long Beach, California
5. San Jose-San Francisco-Oakland, California
6. Salt Lake City, Utah
7. Phoenix-Mesa-Scottsdale, Arizona
8. Las Vegas-Henderson, Nevada
9. Denver-Aurora, Colorado
10. Sacramento-Roseville, California
11. Seattle-Tacoma, Washington
12. Fairbanks, Alaska
13. San Diego-Chula Vista-Carlsbad, California
14. Houston-The Woodlands, Texas
15. Portland-Vancouver-Hillsboro, Oregon-Washington
16. El Centro, California
17. Cincinnati, Ohio-Kentucky-Indiana
18. Cleveland-Akron-Canton, Ohio
19. Pittsburgh, Pennsylvania
20. Detroit-Warren-Ann Arbor, Michigan
21. Indianapolis-Carmel-Muncie, Indiana
22. Philadelphia-Reading-Camden, Pennsylvania-New Jersey-Delaware-Maryland
23. New York-Newark, New York-New Jersey-Pennsylvania
24. Chicago-Naperville, Illinois-Indiana-Wisconsin
25. Washington-Baltimore-Arlington, DC-Maryland-Virginia-West Virginia-Pennsylvania
26. Boston-Worcester-Providence, Massachusetts-Rhode Island-New Hampshire-Maine
27. Atlanta-Athens-Clarke County-Sandy Springs, Georgia
28. Chattanooga-Cleveland-Dalton, Tennessee-Georgia
29. Dallas-Fort Worth, Texas
30. Austin-Round Rock, Texas
31. San Antonio-New Braunfels, Texas
32. McAllen-Edinburg, Texas
33. Charlotte-Concord, North Carolina-South Carolina
34. Charleston-Huntington-Ashland, West Virginia-Kentucky-Ohio
35. St. Louis-St. Charles-Farmington, Missouri-Illinois
36. Milwaukee-Racine-Waukesha, Wisconsin
37. Las Cruces, New Mexico
38. Albuquerque, New Mexico
39. Toledo, Ohio-Michigan
40. Fort Wayne-Huntington-Auburn, Indiana
41. Memphis, Tennessee-Mississippi-Arkansas
42. Louisville-Jefferson County-Elizabethtown-Madison, Kentucky-Indiana
43. Nashville-Davidson-Murfreesboro, Tennessee
44. Birmingham-Hoover-Talladega, Alabama
45. Huntsville, Alabama
46. Mobile-Daphne-Fairhope, Alabama
47. Boise City-Mountain Home-Ontario, Idaho-Oregon
48. Oklahoma City-Shawnee, Oklahoma
49. Tulsa-Muskogee-Bartlesville, Oklahoma
50. Kansas City-Overland Park-Kansas City, Missouri-Kansas
51. Sacramento-Roseville, California
52. Eugene-Springfield, Oregon
53. Spokane-Spokane Valley-Coeur d'Alene, Washington-Idaho
54. Albuquerque, New Mexico
55. Reno-Carson City-Fernley, Nevada
56. Yuma, Arizona
57. Denver-Aurora, Colorado
58. Santa Fe-Espanola, New Mexico
59. Colorado Springs, Colorado
60. Eugene-Springfield, Oregon
61. Yakima, Washington
62. Medford-Grants Pass, Oregon
63. Kennewick-Richland-Walla Walla, Washington-Oregon
64. Redding-Red Bluff, California
65. Anchorage, Alaska
66. Billings, Montana
67. Great Falls, Montana
68. Missoula, Montana
69. Helena, Montana
70. Idaho Falls-Rexburg-Blackfoot, Idaho
71. Logan, Utah-Idaho
72. Flagstaff, Arizona
73. Prescott, Arizona
74. Lake Havasu City-Kingman-Bullhead City, Arizona-Nevada
75. Farmington, New Mexico