World's most polluted cities 2020 (PM2.5)

The most polluted cities according to data aggregated from over 80,000 data points.

Filter cities by

down arrow
down arrow
down arrow
magnifying glass icon

2020

NEW

World air quality report

Download PDF

down arrow with white text
web download icon

2020 World air quality report

Download PDF

PM2.5 Legend grey informational icon
WHO target Good Moderate Unhealthy for sensitive groups Unhealthy Very unhealthy Hazardous
Unit: µg/m³
Rank City 2020 AVG JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2019 AVG 2018 AVG 2017 AVG
1 Canada
Gitanyow, Canada
17.9 34.8 24 17.5 11.3 5 3.2 3.5 4.7 7.6 13.7 26.9 36.6 - - -
2 Canada
Clearwater, Canada
15.5 26.5 21.3 15.7 7.7 3 2.8 5.2 5.8 13.3 15.6 23.7 31.1 13.9 - -
3 Canada
Qualicum Beach, Canada
12.6 13 14.8 13.6 8.4 4.9 3.6 3.4 4 30.3 16.6 15.7 18 10 - -
4 Canada
Grand Forks, Canada
12.2 12.6 13.8 6.9 5.2 5 4.1 5.3 6.1 54.8 10.4 12.9 11.5 10.6 - -
5 Canada
Golden, Canada
11.5 11.3 15.3 8 5.1 3.6 2.9 4.2 6.2 19.9 15.5 17.9 22.3 - - -
6 Canada
Castlegar, Canada
10.8 7.4 7.9 6.9 5 4 4 4.5 5.8 56 8.7 10.8 8.2 - - -
7 Canada
Hazelton, Canada
10.7 19.5 16.6 13.2 10.9 3.6 2.8 3.5 4 6.1 9.9 14.8 12.6 13.5 - -
8 Canada
Sooke, Canada
10.6 11.1 10.9 12.5 8.1 4.2 2.8 4.4 4.8 24.9 11.3 13.6 11.7 8.8 - -
9 Canada
Mont-Royal, Canada
10.5 13.6 17.9 11 8.3 8.9 10.8 8.9 8.2 7.4 9.2 13.5 9 13 - -
10 Canada
Laval, Canada
10.1 15.7 17.9 9.6 6.8 6.1 9.9 9.2 7 5.1 6.4 15.1 13 9.4 - -
11 Canada
Longueuil, Canada
9.9 15.8 18.1 9.6 6.4 5.2 8.8 9.2 8.2 5.9 5.7 12.7 11.9 9.2 - -
12 Canada
Quebec, Canada
9.9 12.8 19.4 11 6.6 6.4 8.4 8.4 7.7 7.3 7 11.8 11.9 8.3 8.9 9
13 Canada
Cranbrook, Canada
9.7 10.4 8.5 7.6 5.1 3.1 2.1 4.4 6.1 29.1 10.6 11.3 14.2 8.9 - -
14 Canada
Chemainus, Canada
9.5 8.7 11 9 6.9 3.8 3.4 4 4.6 22.8 11.9 10.6 12.8 9.1 - -
15 Canada
Mill Bay, Canada
9.5 5.6 9.5 9.6 6.1 4 2.8 3.8 4.7 21.7 12.3 12.5 14.1 9.1 - -
16 Canada
Vanderhoof, Canada
9.5 14.4 10.6 8.7 8 4.1 4.2 6.7 7.1 7.5 12.7 12.5 11.4 - - -
17 Canada
Montreal, Canada
9.5 12.3 15.6 9.3 7.3 7.4 9.8 8.7 7.7 7.5 6.6 11.8 10.1 10 7 6.8
18 Canada
Scotch Creek, Canada
9.4 9.6 10.6 12.8 6.2 4 5.4 8.3 7.1 17.4 11.8 10.4 8.8 8.5 - -
19 Canada
Hamilton, Canada
9.4 10.9 10.9 9.2 7.9 9 9.5 11.3 9.2 7.7 5.8 11 10.7 10.1 8.9 8.3
20 Canada
Courtenay, Canada
9.2 8.6 12.3 8.2 5.8 2.9 2.7 3.1 3.8 24.2 12.3 11.3 12.4 8.6 - -
21 Canada
Parksville, Canada
9 8 12.2 10.8 7.6 4.7 4.3 3.7 4.1 18.2 11.2 11.1 12.3 9 - -
22 Canada
Barrière, Canada
8.7 10.9 10.5 7.6 5.6 4.1 3.5 5.3 4.8 13.1 12.1 12.4 10.4 8.2 - -
23 Canada
Campbell River, Canada
8.7 5.7 8.8 6.6 5.3 5.1 4.2 5 5.4 26.3 9.6 8.6 10.6 - - -
24 Canada
Valemount, Canada
8.5 10.7 9.7 12.7 9.5 5.9 3.8 7.4 6.7 10.8 10 8.3 6.1 - - -
25 Canada
Sainte-Anne-de-Bellevue, Canada
8.5 9.8 12.6 7.6 8.5 7.2 9.9 9.1 7.1 5.5 5.9 10.2 8.3 8.2 6.3 6.3
26 Canada
Houston, Canada
8.4 14.6 14.6 9.7 6.7 4.6 3.3 4.6 4.5 5.5 10 10.9 10.7 12.8 - -
27 Canada
Madeira Park, Canada
8.4 6.8 10.1 10.3 7.1 3.9 2.7 4.2 5.1 20.4 8.7 9.7 11.1 8.5 - -
28 Canada
New Westminster, Canada
8.3 4.1 7.2 6.1 5.7 4.9 4.8 5.9 6.5 30.6 10.1 6.2 6.7 7.3 - -
29 Canada
Cobble Hill, Canada
8.2 6.7 8.1 7.9 5.3 3.8 2.9 3.7 4.4 21.7 11 10 9 9.2 - -
30 Canada
Duncan, Canada
8.2 8.1 9.1 7.7 4.9 3.1 2.6 3.3 4.2 21.6 10.7 9.9 12.5 8.5 - -
31 Canada
Sointula, Canada
8.1 7.6 10 9.3 5.2 3.9 2.5 3.7 2.2 15.5 9.6 9.7 9.7 7.6 - -
32 Canada
Vancouver, Canada
8.1 4.1 6 5.7 5.7 4.6 4.4 5.7 6.2 31.6 8.7 7.2 7.9 6.1 6.3 6.6
33 Canada
Windsor, Canada
8.1 8.6 8.7 8.5 7.6 6.3 7.9 8.6 7.6 7.6 6.6 8.4 10.8 8.2 8.6 8
34 Canada
Port Alberni, Canada
8 9.7 12.4 8.5 6.1 4.5 3.9 4.6 5 9.5 9.1 10.9 11.6 - - -
35 Canada
Gatineau, Canada
8 10.9 11.9 7.9 4.8 5 7.3 7.7 6.2 4.8 5.1 12.5 11.2 7.8 - -
36 Canada
Bainsville, Canada
7.9 11.2 13.8 7.1 4.9 6.2 9 8.7 7.1 5 3.7 9.6 8.8 8.2 - -
37 Canada
Abbotsford, Canada
7.8 3.2 6.1 7.7 6.9 4.8 4.5 6.3 6.9 26.2 10.1 5.4 5.7 7.5 7.2 6.1
38 Canada
Vernon, Canada
7.8 10.3 11.3 8.1 6 4 3.7 4.7 5.1 11.9 9.9 11.3 8.5 9.1 - -
39 Canada
Regina, Canada
7.8 6 6.5 6.2 6.3 6.9 5.1 6.8 10 9.4 6.6 12.1 9.4 8.4 - -
40 Canada
Gibbons, Canada
7.7 13.1 7.2 7 5.7 6.2 6.3 6.5 6.4 8.3 6.6 10 9.2 8.7 - -
41 Canada
Crofton, Canada
7.7 4.1 5.5 5.8 5.3 4.2 3.5 3.8 4.4 32.7 6.8 4.4 4.7 - - -
42 Canada
Kelowna, Canada
7.7 7.6 6.5 3.9 3.4 2.9 2.8 4.5 5.2 33.7 9.9 8.2 7.4 7.1 - -
43 Canada
Quesnel, Canada
7.7 9.6 8.1 8.4 7.1 5.2 5.7 6.8 6.1 8.9 9 7.4 8.9 9.8 - -
44 Canada
Dobie, Canada
7.7 12 8.5 10.6 5.1 6.5 9.1 7.6 5.6 5.6 3.9 10.6 - 7.7 - -
45 Canada
Burns Lake, Canada
7.5 11.5 10.1 9.3 6.9 4.9 2.7 3.3 3.4 5.7 10.4 9.6 9.7 10.9 - -
46 Canada
Smithers, Canada
7.4 12.6 12 7.6 5.7 3.8 2.8 3.3 3.4 5.4 10.8 9.8 10.7 11.6 - -
47 Canada
Burlington, Canada
7.4 6.5 6.7 6.3 5.7 6.2 7.5 9.2 8.3 7.2 5.8 9.5 9.6 6.8 7.5 7.4
48 Canada
Champlain, Canada
7.4 9.1 15.8 10.6 4.5 5.4 8.6 7.8 4.4 3.7 4.7 8.8 6.2 6.9 - -
49 Canada
Prince Albert, Canada
7.4 5.3 6.5 6.2 6 6.6 4.6 6 6.9 7.9 6.2 10.1 12.3 - - -
50 Canada
Ladysmith, Canada
7.3 5.3 7.2 6.1 4.6 3.5 3 3.6 4.1 22.2 10 7.7 8.5 6.7 - -

Stay informed, download our free air quality app

yellow star ratingyellow star ratingyellow star ratingyellow star ratinghalf yellow star ratingRated 4.8

Air pollution forecast, pollution alerts and much more to help you plan your days and keep protected against air pollution

Link to download AirVisual app on App StoreLink to download AirVisual app on Google PlayLink to download AirVisual app on Android

Connect With IQAir

Sign up for our newsletter