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
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 |  New Norfolk, Australia | 8 | 2.1 | 1.9 | 2.3 | 8.4 | 14.8 | 15.5 | 18.8 | 12.9 | 8.2 | 3.3 | 2.3 | 2 | 6.7 | 8.3 | 8.5 | 9.3 | 11.2 |
| 2 | Longford, Australia | 7.8 | 1.9 | 1.7 | 1.8 | 5.9 | 14.2 | 16.5 | 20 | 11.4 | 7.7 | 3.5 | 2.1 | 2.3 | 6.8 | 9.7 | 9.5 | 11.6 | 10.7 |
| 3 | Perth, Australia | 7.6 | 1.6 | 1.6 | 1.8 | 7.4 | 14.2 | 13 | 19.4 | 11.8 | 7.1 | 3.6 | 1.9 | 1.9 | 6.6 | 8.4 | 6.4 | 9.3 | 9.7 |
| 4 | Geeveston, Australia | 6.9 | 2 | 1.9 | 2.5 | 7 | 13.8 | 11.6 | 14.6 | 11 | 7.1 | 3.8 | 2.6 | 2.1 | 6.4 | 7.7 | 11.8 | 7.9 | 8.3 |
| 5 | Hadspen, Australia | 6 | 2 | 1.5 | 1.8 | 6.3 | 11.3 | 10.7 | 14.8 | 7.4 | 6.8 | 3 | 2.1 | 2.1 | 6.5 | 8.7 | 9.3 | 10.2 | 9.8 |
| 6 | Latrobe, Australia | 5.9 | 2.3 | 1.8 | 2 | 5.1 | 9.9 | 11.3 | 13.8 | 9 | 5.5 | 3.1 | 2.2 | 1.8 | 6 | 11.1 | 8.5 | -- | -- |
| 7 | Westbury, Australia | 5.5 | 2.1 | 1.8 | 2 | 5.4 | 10.5 | 9.4 | 13 | 7.6 | 5.4 | 3.2 | 2.4 | 1.9 | 5.9 | 7.9 | 8.2 | 8.7 | 8.1 |
| 8 | Launceston, Australia | 5.3 | 1.7 | 1.9 | 2 | 2.2 | 12.8 | 11.4 | 12.2 | 6.5 | 4.5 | 2.5 | 2 | 1.8 | 4.6 | 6.7 | 5.2 | 5.3 | 7 |
| 9 | Deloraine, Australia | 5 | 1.4 | 1.6 | 2.2 | 6 | 8.5 | 7.3 | 11.2 | 6.4 | 4.7 | 3.1 | 2.1 | 2 | 5.2 | 5.3 | 6.4 | 7.7 | 7.8 |
| 10 | Huonville, Australia | 4.8 | 1.7 | 1.8 | 1.9 | 5.7 | 8.3 | 8.1 | 9.7 | 7.1 | 4.9 | 3.1 | 2.2 | 1.9 | 4.6 | 6.1 | 7.5 | 6.1 | 5.9 |
| 11 | South Launceston, Australia | 4.5 | 1.6 | 1.5 | 1.9 | 4.1 | 8 | 7.7 | 10.9 | 5.3 | 4 | 2.1 | 1.9 | 1.5 | 4.4 | 5.8 | 5.6 | 6.2 | 6.6 |
| 12 | Triabunna, Australia | 4.5 | 2.4 | 2 | 2.6 | 4.3 | 9.2 | 7 | 7.4 | 6.8 | 4.7 | 3 | 2.4 | 1.8 | 4 | 4.8 | 4.8 | 8.4 | 8.2 |
| 13 | Devonport, Australia | 4.2 | 2.7 | 2.3 | 2.4 | 4.8 | 6.1 | 6.6 | 7.7 | 4.8 | 4.1 | 3.1 | 2.5 | 2.3 | 4.3 | 5.8 | 5.5 | 5.3 | 5.4 |
| 14 | Scottsdale, Australia | 4.2 | 1.7 | 1.7 | 2.6 | 4.3 | 6.5 | 6 | 8.4 | 6.2 | 5.3 | 2.6 | 2 | 1.7 | 4.6 | 7.3 | 6.4 | 7.1 | 8.1 |
| 15 | Oatlands, Australia | 4.1 | 1.7 | 1.8 | 2.3 | 5.1 | 7.7 | 5.3 | 7 | 5.7 | 3.7 | 3 | 2.3 | 1.6 | 3.9 | 5.5 | 5.9 | 6.8 | 5.7 |
| 16 | Wynyard, Australia | 3.9 | 2.3 | 2.1 | 2.4 | 4.2 | 6.3 | 6.6 | 7.3 | 4.8 | 3.9 | 2.5 | 2 | 1.7 | 4 | 5.2 | 5.3 | 5.5 | 6.6 |
| 17 | Campbell Town, Australia | 3.8 | 1.8 | 1.6 | 1.7 | 4.3 | 6.5 | 5.8 | 8.1 | 5 | 4.3 | 2.6 | 1.9 | 1.8 | 4.1 | 5.7 | 5.9 | 6.1 | 6.2 |
| 18 | Glenorchy, Australia | 3.8 | 1.7 | 1.7 | 1.8 | 4 | 8.1 | 5.9 | 6.9 | 5.3 | 3.3 | 2 | 1.6 | 1.9 | 3.6 | 4.8 | 4.8 | 4.4 | 4.7 |
| 19 | Lilydale, Australia | 3.8 | 1.8 | 1.9 | 2.1 | 3.6 | 5.5 | 6.1 | 6.5 | 3.7 | 3.3 | 3 | -- | -- | 4.2 | 5.2 | 4.8 | 4.8 | 5 |
| 20 | Sheffield, Australia | 3.8 | 2.1 | 1.8 | 2.1 | 4.9 | 6.7 | 3.9 | 9.6 | 3.6 | 3.7 | 2.2 | 2.1 | 1.8 | 3.8 | 5.5 | 5.1 | 4.7 | 3.6 |
| 21 | Queenstown, Australia | 3.6 | 1.5 | 1.5 | 2.1 | 4.1 | 5.2 | 6.4 | 6.8 | 4.3 | 3.4 | 2.2 | 2.2 | 1.6 | 4.3 | 6.7 | 6.3 | -- | -- |
| 22 | Bream Creak, Australia | 3.3 | 2.2 | 1.9 | 2.8 | 3.7 | 5.6 | 3.9 | 3.5 | 2.9 | 3.2 | 3 | 3.6 | 3.2 | 3 | 4 | 4.3 | 4.4 | 2.5 |
| 23 | Hobart, Australia | 3.2 | 1.6 | 1.5 | 1.7 | 3.4 | 6.5 | 4.8 | 5.7 | 4.4 | 3.1 | 1.8 | 1.4 | 1.6 | 3 | 3.7 | 4.4 | 4 | 3.7 |
| 24 | Cygnet, Australia | 2.9 | 1.7 | 1.8 | 2 | 3.6 | 4.5 | 4.1 | 4.6 | 3.7 | 2.9 | 1.8 | 2.2 | 1.9 | 3 | 3.3 | 7.9 | 3.9 | 3.7 |
| 25 | Fingal, Australia | 2.8 | 2.9 | 2 | 3 | 3.2 | 2.5 | 2.9 | 3.2 | 2.6 | 2.5 | 4 | 1.9 | 2.2 | 3.6 | 3.1 | 3 | 3.1 | 3.1 |
| 26 | Gretna, Australia | 2.8 | 1.9 | 2 | 1.5 | 5 | 5.2 | 3.2 | 3.4 | 3.2 | 2.3 | 1.5 | 1.5 | 1.8 | 2.6 | 3.1 | 4.7 | 3.1 | 3.1 |
| 27 | Exeter, Australia | 2.7 | 2 | 1.9 | 2.1 | 3 | 4.5 | 3 | 4.1 | 2.4 | 2.8 | 1.7 | 2.1 | 2 | 2.7 | 3.7 | 3.6 | 3.2 | 3 |
| 28 | Mornington, Australia | 2.7 | 2.2 | 2 | 2.2 | 3.4 | 4.9 | 3.3 | 3.1 | 2.8 | 2.3 | 1.9 | 1.9 | 2.2 | 2.4 | 3.2 | 3.8 | 3 | 3.9 |
| 29 | Smithton, Australia | 2.6 | 2 | 1.8 | 2.1 | 2.9 | 3.9 | 3.6 | 3.6 | 3 | 2.4 | 2.2 | 2 | 1.9 | 3 | 3.9 | 4.3 | 4.9 | 4.9 |
| 30 | West Ulverstone, Australia | 2.6 | 2.3 | 1.7 | 2 | 2.9 | 3.6 | 3.2 | 3.3 | 2.9 | 3 | 2.6 | 2.1 | 1.9 | 2.9 | 3.8 | 3.7 | 4 | 3.7 |
| 31 | George Town, Australia | 2.4 | 1.8 | 1.9 | 1.9 | 2.9 | 3.1 | 2.8 | 3.2 | 2.3 | 2.9 | 1.6 | 1.6 | 1.5 | 3.3 | 4.3 | 4.1 | 4.4 | 4.1 |
| 32 | Kingston, Australia | 2.2 | 1.7 | 1.1 | 1.5 | 3.8 | 3.9 | 2.9 | 2.9 | 2.4 | 2.1 | 1.4 | 1.3 | 1.7 | 4 | -- | -- | -- | -- |
| 33 | Judbury, Australia | 2 | 1.8 | 1.8 | 1.6 | 2.5 | 3.7 | 2 | 2.3 | 2 | 1.8 | 1.6 | 1.6 | 1.7 | 2 | 2.4 | 5.7 | 2.2 | 1.9 |
| 34 | St Helens, Australia | 1.8 | 1.8 | 1.6 | 2 | 2.3 | 1.9 | 1.5 | 1.6 | 1.5 | 1.8 | 1.9 | 2.1 | 1.7 | 1.9 | 2.4 | 2.4 | 2.9 | 3.3 |
| 35 | Emu River, Australia | 1.7 | 1.8 | 1.7 | 1.8 | 2.3 | 1.8 | 1.6 | 1.5 | 1.8 | 1.4 | 1.4 | 1.7 | 1.6 | 2.1 | 2.6 | 2.5 | 2.6 | 2.3 |
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