2017-2023
2023
World Air Quality Report
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 | 2023 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Grimshaw, Canada | 27.5 | -- | -- | -- | -- | 53.1 | 27.4 | 38.9 | 34.7 | 55.6 | 9.5 | 11.1 | 5 | -- | -- | -- | -- | -- | -- |
2 | Fort Mckay, Canada | 23.8 | 9.1 | 5.7 | 8.7 | 6.2 | 43.4 | 33.9 | 50.5 | 44.7 | 62.6 | 7.7 | 6.4 | 5.2 | 6.3 | 5.6 | -- | -- | -- | -- |
3 | Fort McMurray, Canada | 22.8 | 9.7 | 5.8 | 6.6 | 6.1 | 48.7 | 30.8 | 46.1 | 44.4 | 52.7 | 7.6 | 5.7 | 4.1 | 7.5 | 7 | 5.4 | 6.4 | -- | -- |
4 | Peace River, Canada | 22.4 | 18.9 | 4.8 | 5.3 | 3.8 | 61.3 | 31.9 | 33.8 | 28 | 45.2 | 7.9 | 8.1 | 5.8 | 7.1 | 6.3 | -- | -- | -- | -- |
5 | Fort Vermilion, Canada | 22.3 | 6.3 | 1.6 | 2 | 2.7 | 30 | 35 | 49.5 | 46.2 | 49.1 | 10.2 | 12.1 | 6.6 | -- | -- | -- | -- | -- | -- |
6 | Timberlea, Canada | 21.4 | 9.4 | 5 | 6.2 | 5.4 | 44.2 | 22.5 | 46.8 | 40.9 | 55.7 | 6 | 5.8 | 5.6 | -- | -- | -- | -- | -- | -- |
7 | Yellowknife, Canada | 20.8 | 4.4 | 3.1 | 3.7 | 3.6 | 11.5 | 19.8 | 50.7 | 63 | 70.6 | 10.6 | 3.6 | 3.8 | 5.3 | 4.6 | 4.4 | 4.9 | -- | -- |
8 | Conklin, Canada | 19.4 | 8.2 | 3.2 | 4.7 | 5.2 | 49 | 27.9 | 36.3 | 33 | 47.5 | 7.1 | 5.5 | 4.3 | 6.3 | 6.5 | 4.6 | 5.7 | -- | -- |
9 | Fort Chipewyan, Canada | 19.2 | 3.9 | 2.2 | 3.6 | 3.2 | 20.9 | 27.9 | 35.3 | 58.4 | 47.1 | -- | -- | 2.9 | 4.9 | 4.4 | 3.8 | 5.6 | 4.9 | 3.6 |
10 | Fort St John, Canada | 18.7 | 8.5 | 2.4 | 5.6 | 3.8 | 48.7 | 34.5 | 36.5 | 23 | 43.2 | 6 | 7.5 | 4 | 6.3 | 5.8 | 4.7 | -- | -- | -- |
11 | Bonnyville, Canada | 18.6 | 17.2 | 5.6 | 10 | 6.6 | 24.7 | 26.1 | 29.5 | 23.5 | 24.4 | 8.3 | -- | -- | 8.5 | 9.1 | 4.9 | 5.5 | -- | -- |
12 | Beaumont, Canada | 17.7 | 23.9 | 8.2 | 14.5 | 8.7 | 36.1 | 20.7 | 28.2 | 20 | 29.3 | 5.5 | 8 | 5.7 | 12.5 | -- | -- | -- | -- | -- |
13 | Salmon Arm, Canada | 17.7 | 12.9 | 9.8 | 6.6 | 4 | 10.6 | 13.7 | 18 | 95 | 18.4 | 6.3 | 11.2 | 7.5 | 9.5 | 37.4 | -- | -- | -- | -- |
14 | Wabasca-Desmarais, Canada | 17.5 | -- | -- | -- | 4.2 | 29.3 | 22.9 | 31.9 | 24.6 | 23.7 | 3.9 | 4.3 | 2.6 | 5.6 | 7.6 | -- | -- | -- | -- |
15 | Fort Saskatchewan, Canada | 16.8 | 17.9 | 6.2 | 10.7 | 7.2 | 35.9 | 21.9 | 31.4 | 19.3 | 28.3 | 7.1 | 9.2 | 7.8 | 7.4 | 8.2 | 5.8 | 7.5 | 11.6 | 7.9 |
16 | Redwater, Canada | 16.8 | 14.2 | 5.1 | 9.7 | 6.4 | 34 | 23.4 | 35.2 | 19.5 | 33.3 | 5.8 | 8 | 6.3 | 7.6 | 8.5 | 5.5 | 7.9 | -- | -- |
17 | Spruce Grove, Canada | 16.8 | 17.7 | 6 | 10 | 3.7 | 33.7 | 20.6 | 28.8 | 21.2 | 29.5 | 4 | 5.5 | 2.8 | 7.3 | 9.6 | 7.2 | 9.8 | -- | -- |
18 | Chetwynd, Canada | 16.7 | -- | -- | 7.5 | 6.3 | 21.7 | 9.9 | 70.9 | 32.5 | 32.7 | 6.9 | 8.1 | 3.5 | 6.7 | 4.5 | -- | -- | -- | -- |
19 | Edmonton, Canada | 16.6 | 21 | 7 | 12 | 7.2 | 32.2 | 20.3 | 28.1 | 20.4 | 30 | 5.6 | 7.9 | 6 | 8.7 | 9.5 | 6.5 | 7.4 | 10.5 | 8.2 |
20 | Vanderhoof, Canada | 16.6 | 12.9 | 6.4 | 8.9 | 6.4 | 22.4 | 6.8 | 50.8 | 24.3 | 32.3 | 6.2 | 9.8 | 10.7 | 8.8 | 8.6 | 9.5 | -- | -- | -- |
21 | Athabasca, Canada | 16.5 | 17.7 | 4.4 | 7.3 | 6.2 | 32.2 | 25.1 | 35.5 | 22.1 | 24.8 | 4.7 | 7.8 | 5.5 | 7.3 | 9.4 | -- | -- | -- | -- |
22 | Gibbons, Canada | 16.3 | 16.7 | 7.3 | 12 | 8.6 | 23.7 | 21.2 | 30 | 18.3 | 35.5 | 7.2 | 8.8 | 7.2 | 9.6 | 9.5 | 7.7 | 8.7 | -- | -- |
23 | Devon, Canada | 16.2 | 22.8 | 7.6 | 13.4 | 8.1 | 32.7 | 19.9 | 25 | 19.4 | 23.1 | 5.3 | 7.9 | 5 | 6.1 | 9.3 | -- | -- | -- | -- |
24 | Nampa, Canada | 16.2 | 14.5 | 3.3 | 3.9 | 3.1 | 45 | 30 | 18.3 | 36.5 | 24.5 | 6.7 | 6.9 | 2.8 | -- | -- | -- | -- | -- | -- |
25 | St. Albert, Canada | 15.8 | 20.4 | 6.2 | 10.8 | 6.7 | 31.9 | 19.3 | 25.3 | 18.8 | 28.7 | 6.1 | 8 | 6.1 | 8.5 | 9.8 | 6.7 | 6.7 | -- | -- |
26 | Golden, Canada | 15.8 | 19.9 | 17.5 | 15.2 | 5.9 | 12 | 8.5 | 19.2 | 34.8 | 10.5 | 9.9 | 19.1 | 16.3 | 13.8 | 22.2 | 11.5 | -- | -- | -- |
27 | Sherwood Park, Canada | 15.7 | 18.3 | 5.7 | 10.6 | 7.3 | 30.3 | 19.4 | 29.3 | 19.7 | 30 | 5 | 6.9 | 4.7 | 7.1 | 8.5 | 6.3 | 8 | -- | -- |
28 | Wainwright, Canada | 15.7 | 18.3 | 7.6 | 10.7 | 6 | 28 | 20.5 | 38.7 | 24.6 | 22 | 6 | 8.5 | 7.8 | 8.1 | 12.2 | -- | -- | -- | -- |
29 | Valemount, Canada | 15.7 | 11.6 | 9.7 | 18 | 8.1 | 17.3 | 13.3 | 28.8 | 24.6 | 24 | 10.8 | 12.8 | 8.5 | 10 | 11 | 8.5 | -- | -- | -- |
30 | Dalmeny, Canada | 15.7 | 19.7 | 8.3 | 11.3 | 6.7 | 17.1 | 14.5 | 21.7 | 23 | 40.1 | 5.6 | 9.7 | 9.2 | 10 | -- | -- | -- | -- | -- |
31 | Saskatoon, Canada | 15.5 | 17.1 | 8.1 | 11.3 | 6.5 | 21.9 | 21.7 | 22.5 | 21.1 | 37.8 | 5 | 7.7 | 6 | 7.8 | 10.4 | -- | 8.2 | -- | -- |
32 | Anzac, Canada | 15.4 | 5.6 | 3.6 | 4.4 | 3.9 | 20 | 28.6 | 38.3 | 25.5 | 43.5 | -- | -- | 3.1 | 5.5 | 5.8 | 4.5 | 5.9 | -- | -- |
33 | Camrose, Canada | 15.3 | 18.7 | 7.8 | 13.2 | 7.6 | 25.6 | 20.2 | 18.5 | 21.7 | 30.1 | 4.9 | 7.5 | 5.5 | 7.9 | 10.6 | -- | -- | -- | -- |
34 | Carrot Creek, Canada | 15.3 | 24.9 | 3.5 | 7.4 | 3.9 | 36.1 | 22.3 | 25.5 | 20.2 | 18.8 | 4.6 | 6 | 4.6 | 8.3 | 7.1 | -- | -- | -- | -- |
35 | Lamont, Canada | 15.3 | 13 | 4.8 | 9.1 | 5.9 | 30.2 | 19.8 | 32.5 | 17.4 | 25.7 | 6.6 | 8 | 7.2 | -- | -- | -- | -- | -- | -- |
36 | Mont-Royal, Canada | 15.3 | 13.8 | 16.5 | 14.1 | 13.2 | 14 | 29.1 | 22.2 | 12.4 | 17 | 11.6 | 10.1 | 12.8 | 15.9 | -- | -- | -- | -- | -- |
37 | Fort Nelson, Canada | 15 | 1.8 | 1.3 | 1.8 | 2 | 18.2 | 16 | 46.4 | 16.6 | 38.6 | 11.9 | 2.7 | 1.7 | 3.3 | 4.9 | -- | -- | -- | -- |
38 | Bruderheim, Canada | 14.9 | 14.8 | 5.9 | 9.6 | 6.3 | 33.7 | 18.8 | 27.9 | 15.9 | 25.2 | 6.2 | 7.7 | 6.9 | 7.4 | 8.4 | 6.1 | 7.7 | 10.7 | 7 |
39 | Waskatenau, Canada | 14.9 | 19.1 | 7.5 | 10.7 | 7.5 | 27 | 15.1 | 29.1 | 19 | 21.8 | 4.8 | 7.7 | 5.8 | -- | -- | -- | -- | -- | -- |
40 | White Lake, Canada | 14.9 | 7 | 5.6 | 5.3 | 4 | 6.9 | 8.1 | 19.2 | 85 | 14.8 | 6.1 | 7.6 | 6.5 | -- | -- | -- | -- | -- | -- |
41 | Prince Albert, Canada | 14.9 | -- | -- | -- | 5.2 | 17.3 | 13.6 | 18.2 | 25.1 | 27.2 | 5.9 | 6.8 | 6.9 | 5.9 | 10.9 | 7.4 | -- | -- | -- |
42 | Cold Lake, Canada | 14.8 | 10.2 | 4.2 | 5.9 | 5.2 | 30.2 | 22.6 | 25.2 | 21.2 | 34.4 | 4.6 | 6.7 | 6.2 | 7.1 | 8.1 | 4.9 | 4.4 | -- | -- |
43 | Leduc, Canada | 14.8 | 10.7 | 4.8 | 10.2 | 5.4 | 34.9 | 19.2 | 25.7 | 17.1 | 29.2 | 5.8 | 8.3 | 5.2 | 7.9 | 12.9 | -- | -- | -- | -- |
44 | Meadow Lake, Canada | 14.7 | 14.7 | 8.3 | 7.3 | 4.5 | 20.1 | 22.3 | 20.9 | 21.4 | 20.7 | 3.2 | 9.7 | -- | 8 | 15.8 | -- | -- | -- | -- |
45 | Elk Island, Canada | 14.6 | 13.2 | 4 | 7.9 | 5.8 | 33.2 | 20.3 | 31.1 | 16.8 | 26 | 5.4 | 6.4 | 4.5 | -- | -- | -- | -- | -- | -- |
46 | Eagle Bay, Canada | 14.5 | 9.2 | 9.7 | 7.3 | 4.5 | 6.4 | 9.8 | 22.4 | 63.6 | 18.1 | 7.9 | 11.1 | 6.6 | -- | -- | -- | -- | -- | -- |
47 | Janvier, Canada | 14.3 | 7.4 | 3.2 | 4.5 | 4.7 | 30.5 | 25.9 | 31.3 | 26.9 | 25.7 | 4.8 | 4.7 | 3.6 | -- | -- | -- | -- | -- | -- |
48 | Smoky Heights, Canada | 14.3 | 9.1 | 2.2 | 4.5 | 3.9 | 51.7 | 20.6 | 24.3 | 19.9 | 21.8 | 5.2 | 6.2 | 5.3 | -- | -- | -- | -- | -- | -- |
49 | Patricia Mcinnes, Canada | 14.2 | 5.2 | 2.9 | 4 | 4.9 | 20.3 | 24.3 | 31.9 | 28.5 | 49 | -- | -- | 2.2 | 5.9 | 5.3 | -- | -- | -- | -- |
50 | Bassano, Canada | 14.1 | 8.8 | 7.6 | 13 | 5.8 | 18.7 | 19.5 | 36.4 | 20.5 | 23.1 | 4.8 | 6.8 | 3.3 | 7.7 | -- | -- | -- | -- | -- |
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