Air Pollution Index by City – USA & Canada

The worst air pollution cities in the USA & Canada

Listed in order of highest particulate matter concentration

Rank City Pollution Index 1st Person Discount
1 Phoenix, AZ, United States 62.49
2 Los Angeles, CA, United States 61.38 Not Available
3 New York, NY, United States 58.74
4 Salt Lake City, UT, United States 56.97
5 Houston, TX, United States 55.54
6 Detroit, MI, United States 53.2
7 San Jose, CA, United States 51.87
8 Atlanta, GA, United States 50.31
9 Las Vegas, NV, United States 49.68
10 Winnipeg, Canada 45.56
11 Dallas, TX, United States 44.87
12 Sacramento, CA, United States 42.78
13 Pittsburgh, PA, United States 41.63
14 Honolulu, HI, United States 40.91
15 Toronto, Canada 40.68
16 Miami, FL, United States 40.53
17 Denver, CO, United States 39.91
18 Orlando, FL, United States 39.1
19 San Antonio, TX, United States 38.79
20 Indianapolis, IN, United States 38.65
21 San Francisco, CA, United States 37.38
22 Washington, DC, United States 36.93
23 Austin, TX, United States 36.93
24 Chicago, IL, United States 36.71
25 Brampton, Canada 35.48
26 Montreal, Canada 33.28
27 San Diego, CA, United States 32.16
28 Nashville, TN, United States 31.24
29 Seattle, WA, United States 30.38
30 Richmond, VA, United States 30.11
31 Reno, NV, United States 29.05
32 Edmonton, Canada 27.49
33 Charlotte, NC, United States 27.32
34 Tampa, FL, United States 26.15
35 Calgary, Canada 26
36 Columbus, OH, United States 25.79
37 Vancouver, Canada 24.41
38 Portland, OR, United States 23.74
39 Boston, MA, United States 23.04
40 Mississauga, Canada 22.86
41 Minneapolis, MN, United States 18.29
42 Victoria, Canada 15.88