Northern America: Pollution Index by City 2018 Mid-Year

Chart: Pollution Index
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Rank
City
Pollution Index
Exp Pollution Index
Phoenix, AZ, United States 60.1 104.2
Los Angeles, CA, United States 59.1 101.5
Salt Lake City, UT, United States 59.0 111.5
New York, NY, United States 57.9 101.8
Detroit, MI, United States 54.8 96.7
Houston, TX, United States 51.4 87.6
Las Vegas, NV, United States 51.3 85.6
Hamilton, Canada 49.8 86.7
San Jose, CA, United States 48.8 82.1
Atlanta, GA, United States 46.0 76.7
San Antonio, TX, United States 42.3 71.6
Pittsburgh, PA, United States 42.3 72.9
Denver, CO, United States 41.5 70.5
Winnipeg, Canada 41.1 69.1
Sacramento, CA, United States 39.9 67.9
Washington, DC, United States 39.0 65.1
Dallas, TX, United States 38.9 64.1
Indianapolis, IN, United States 38.9 63.3
Honolulu, HI, United States 38.6 64.0
Chicago, IL, United States 38.2 64.7
Austin, TX, United States 38.1 64.5
Miami, FL, United States 38.0 63.8
Toronto, Canada 37.0 60.7
Nashville, TN, United States 36.4 61.9
Richmond, VA, United States 34.3 58.7
San Francisco, CA, United States 33.9 60.2
San Diego, CA, United States 33.5 62.6
Brampton, Canada 33.2 54.4
Orlando, FL, United States 32.3 56.1
Montreal, Canada 32.2 54.5
Edmonton, Canada 31.2 52.4
Kansas City, MO, United States 29.7 51.3
Seattle, WA, United States 29.7 51.9
Reno, NV, United States 29.2 48.2
Tampa, FL, United States 27.5 48.7
Tucson, AZ, United States 27.2 46.7
Portland, OR, United States 26.0 44.3
Boston, MA, United States 24.9 43.7
Calgary, Canada 24.9 40.3
Vancouver, Canada 23.7 40.4
Columbus, OH, United States 23.2 38.1
Mississauga, Canada 22.3 36.4
Minneapolis, MN, United States 21.4 34.9
Ottawa, Canada 17.9 31.9
Victoria, Canada 17.1 32.6