2017-2022

World's most polluted cities

Most polluted city ranking based on annual average PM2.5 concentration (μg/m³)

2022

World Air Quality Report

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PM2.5 legend

0-5

Meets WHO guideline

5.1-10

Exceeds by 1 to 2 times

10.1-15

Exceeds by 2 to 3 times

15.1-25

Exceeds by 3 to 5 times

25.1-35

Exceeds by 5 to 7 times

35.1-50

Exceeds by 7 to 10 times

>50.1

Exceeds by over 10 times

Rank
City
2022 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2021 2020 2019 2018 2017
1 Canada
Clearwater, Canada
18.1 -- -- 14.9 9.7 4.6 4.8 7.9 13.4 19.6 24.6 42.5 38.7 21.3 15.5 13.9 -- --
2 Canada
Golden, Canada
13.8 16.1 20.9 11.1 7.1 3.3 4.4 6.9 11.6 21.7 17.9 25.3 20.1 22.2 11.5 -- -- --
3 Canada
Creston, Canada
13.7 8.6 7.1 3.8 1.2 1.4 2.3 7.4 15.8 44.2 34.2 16.5 7.6 9.8 -- -- -- --
4 Canada
Chilliwack, Canada
12.3 6.5 4.1 4.7 4.3 3.8 3.5 6.4 8.3 28.8 63.3 8.3 4.1 7.6 6 6.6 -- --
5 Canada
Lumby, Canada
12.3 23.9 19.7 10.5 5.2 4 5.1 8.1 9.8 19.3 34.6 -- -- 25.9 -- -- -- --
6 Canada
Nakusp, Canada
12.3 14.7 15.4 12.7 7.4 2.4 1.7 4.2 10.2 21 17.9 16.3 14.9 16.2 -- -- -- --
7 Canada
Woodstock, Canada
11.9 14 14 12.1 7.3 11.6 9.2 12.5 12.9 10.6 10.8 15.7 12.5 12.1 -- -- -- --
8 Canada
Sicamous, Canada
11.2 19.7 14.2 7.6 4.1 2.9 2.5 3 5.6 18.9 18.7 12.9 19.8 8.3 -- -- -- --
9 Canada
Markham, Canada
11.2 14.4 14.3 12.4 7.4 7.9 7.3 11.2 11.4 9.4 10.8 14.8 12.9 11.7 -- -- -- --
10 Canada
Smithers St Josephs, Canada
10.9 17.4 12.8 7.5 18.3 3 6.4 5.2 4.5 5.9 10.6 19.9 22.1 9.9 -- -- -- --
11 Canada
Fruitvale, Canada
10.4 10.2 8.6 4.9 3.6 2.6 2.7 5.9 12.3 29.4 17.9 17.9 14 14.4 -- -- -- --
12 Canada
Castlegar, Canada
10.2 11.5 11 7.3 4.1 3.1 3.7 6.4 11.8 21.2 15.9 16.3 10.2 21.1 10.8 -- -- --
13 Canada
Nelson Kutenai Place, Canada
10.2 5.8 6.3 3.6 3.5 2.6 2.8 6.6 14.6 28.9 20.7 17.4 8.7 16.5 -- -- -- --
14 Canada
Capital Regional District, Canada
10.1 14.7 12.1 7.3 5.5 4.8 4.1 7.8 5.7 11.5 16.6 19.2 12.4 8.6 -- -- -- --
15 Canada
Qualicum Beach, Canada
10.1 14.2 15 8.8 6.6 4.6 3.7 4.9 4.4 7.5 15.6 23.6 13.8 10.4 12.6 10 -- --
16 Canada
Trail, Canada
10.1 7 6.7 4.7 4.1 3.4 3.5 7.4 13.5 26.1 20.5 15.7 8.2 21.3 -- -- -- --
17 Canada
Valemount, Canada
10 6.1 7.8 6 6.2 3.6 4.6 5.9 7.5 17.2 13.5 21.8 19.5 11 8.5 -- -- --
18 Canada
Maple Ridge, Canada
9.9 10.3 9.3 7.9 6.1 4.9 9 9.5 11.1 15.1 12.5 9.6 13.6 10.3 -- -- -- --
19 Canada
Barrière, Canada
9.9 8.3 7.8 5.3 4.4 3.3 3.8 6 9.4 16.3 14.3 26.4 13.4 17.7 8.7 8.2 -- --
20 Canada
Hope, Canada
9.7 5.2 4.6 3.9 4.2 4 4.9 6.5 6.8 16.2 46.5 8.3 4.5 6.1 5.3 5 -- --
21 Canada
Houston, Canada
9.7 14.5 9.8 6.9 6.2 3.4 6.1 5.3 5.5 6.3 13.4 20.8 17.9 10.1 8.4 12.8 -- --
22 Canada
Okanagan, Canada
9.7 8.3 8.1 6.2 1.8 1.9 3.7 6.7 10.2 20.4 19.3 16.1 9.1 23.6 -- -- -- --
23 Canada
Temiscaming, Canada
9.7 14.3 14.9 10.1 7.3 12.1 9 8.8 8.4 8.1 10.6 9.9 7.9 11 -- -- -- --
24 Canada
Gibbons, Canada
9.6 8 6.7 7.2 5.6 6.3 9.1 9.3 11 18.7 11.1 9.6 13.2 9.5 7.7 8.7 -- --
25 Canada
Wellington County, Canada
9.6 11.6 12.6 10.3 5.9 8.3 7.2 9.1 9.2 8 8.1 13.2 11.3 13.1 -- -- -- --
26 Canada
Salmon Arm, Canada
9.5 11.1 14.3 8.6 3.2 2.5 4.1 5.5 8.9 17.6 16.5 14.4 7.8 37.4 -- -- -- --
27 Canada
Lytton, Canada
9.4 8.2 4.2 2.7 2.4 1.9 2.4 6.2 10.3 20.8 32.3 13.4 8.6 11.4 -- -- -- --
28 Canada
Revelstoke, Canada
9.4 7.2 9.8 6.9 1.6 1.3 1.9 5.6 10.2 24.2 19.8 15.1 11.3 18.2 -- -- -- --
29 Canada
Charlotte County, Canada
9.4 17.5 16.6 8.8 8.2 4.1 4.8 9.4 8.3 4.8 6.1 6.9 17.1 9.8 -- -- -- --
30 Canada
Chemainus, Canada
9.3 13.5 11.5 7.4 4 3.9 3.6 7.5 6.3 13 15.6 16.5 9.4 8.2 9.5 9.1 -- --
31 Canada
Vernon, Canada
9.3 10.1 10.1 6.6 2.3 2.1 3.7 6.3 8.7 19.4 17.5 15.8 8.8 18.6 7.8 9.1 -- --
32 Canada
Mont-Royal, Canada
9.2 14.6 10.9 10.5 7.9 9.3 8.3 8.9 6.8 6.7 9.8 8.9 7.9 11.7 10.5 13 -- --
33 Canada
Coldstream, Canada
9.1 11.2 8.7 4.1 1.6 1.4 3.1 5.6 7.9 19.9 19.6 16.3 10 17.1 -- -- -- --
34 Canada
Grand Forks, Canada
9.1 14.1 10.1 8.5 4.9 5 4.7 5.4 7.9 13.6 11.1 14.9 11.4 9.7 12.2 10.6 -- --
35 Canada
Saint-Bruno-de-Montarville, Canada
9.1 20.8 12.7 10 4.2 6 7 9.7 9 4.8 7.3 7.9 9.9 10.6 -- -- -- --
36 Canada
Madeira Park, Canada
9 8.3 10.4 -- -- 3.7 3.2 7 6 12.2 15 13.8 7.8 7.9 8.4 8.5 -- --
37 Canada
Savona, Canada
8.9 8.2 7.1 4.2 1.5 1.6 4 6.7 11.4 19.1 17.9 15.8 7.9 26.4 7.2 7.5 -- --
38 Canada
West End, Canada
8.9 6.8 6.3 4.1 3 4.1 5 9.7 8.5 16 23.7 10.6 8.7 6.2 -- -- -- --
39 Canada
Duncan, Canada
8.8 13.7 10.8 5.7 3.2 2.7 3 6.4 5.1 10.7 14.6 18.4 11.2 6.8 8.2 8.5 -- --
40 Canada
Lake Cowichan, Canada
8.8 15.6 12.4 7.5 5.8 3.6 2.6 4.8 3.7 9.9 13.6 17.2 9.3 10.9 -- 8.2 -- --
41 Canada
Rossland, Canada
8.8 6.9 5 2.9 3 2.8 2.8 6.1 12.3 23.7 15.4 15.8 8.8 27.8 -- -- -- --
42 Canada
Vanderhoof, Canada
8.8 11.1 7.7 6.7 7.8 6.3 6.4 4.6 6 5.3 9 18.6 15.9 8.6 9.5 -- -- --
43 Canada
Edmonton, Canada
8.7 7.7 6 5.8 3.9 4.2 7.2 8.4 10.9 13.7 11.7 10.2 14.1 9.5 6.5 7.4 10.5 8.2
44 Canada
Bonnyville, Canada
8.5 6.7 4.6 4.9 4.5 3.6 8.8 10.4 14.4 8.7 10.2 12 12.3 9.1 4.9 5.5 -- --
45 Canada
St. Albert, Canada
8.5 7.8 6.9 7 4.8 4.4 7.6 8.2 10.6 12.3 10.3 8.7 13 9.8 6.7 6.7 -- --
46 Canada
Port Alberni, Canada
8.5 13 12.8 6.6 4.2 3.1 2.7 4.4 3.9 7.7 10.9 20.7 12.2 7.9 8 -- -- --
47 Canada
Toronto, Canada
8.5 10.5 10 9.2 6 8.4 7.4 8.3 7.5 6.3 7.3 12 8.7 9.3 7 7.4 7.8 7.5
48 Canada
Windsor, Canada
8.5 9.8 9.2 9 6.8 7.3 8.8 7.7 7.3 7.4 8.5 9.6 10.1 9 8.1 8.2 8.6 8
49 Canada
Laval, Canada
8.5 18.1 11.3 9.6 4.3 6.7 6.9 8.5 8.4 5 8.3 7.8 7.8 10.6 10.1 9.4 -- --
50 Canada
Burlington, Canada
8.4 11.4 9.6 8.7 6.1 8.1 7.7 7.9 6.9 6.5 8.3 10.6 9.2 9.6 7.4 6.8 7.5 7.4

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