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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 151 |  Wuhan, China | 45.9 | 101.3 | 66.8 | 46.5 | 40.2 | 44.2 | 25.4 | 20 | 22.6 | 37.8 | 35.5 | 39.9 | 72.1 | 46.7 | 36.5 | 44.4 | 46.9 | 51 |
| 3276 |  New York City, USA | 9.9 | 12.4 | 10.2 | 10.4 | 5.7 | 10.2 | 9.5 | 13.6 | 11 | 7.4 | 8.5 | 9.5 | 10.8 | 10 | -- | -- | -- | -- |
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