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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 |  Dhaka, Bangladesh | 65.8 | 133.1 | 103.2 | 79.9 | 42.2 | 45 | 35.3 | 20.4 | 28.3 | 39.4 | 41.9 | 76 | 146.4 | 78.1 | 77.1 | 83.3 | 97.1 | 79.7 |
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