2017-2024
World's most polluted cities
The most polluted cities according to data aggregated from over 80,000 data points.
2024
World Air Quality Report
2024
World Air Quality Report
PM2.5 legend
0-5Meets WHO guideline
5.1-10Exceeds by 1 to 2 times
10.1-15Exceeds by 2 to 3 times
15.1-25Exceeds by 3 to 5 times
25-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
| Rank | City | 2024 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 101 |  Mossel Bay, South Africa | 8.3 | 8 | 9.4 | 7.6 | 8.9 | 8.5 | 10.1 | 5.5 | 3.9 | 22 | 4.8 | 4.5 | 4.7 | 6.9 | -- | -- | -- | -- | -- | -- |
| 102 |  Kapsabet, Kenya | 7.5 | 12.9 | 6 | 4.8 | 7.1 | 5.5 | 8.4 | 10.7 | 8 | 8.9 | 5.7 | 5.7 | 5.7 | 11.5 | 14.6 | -- | -- | -- | -- | -- |
| 103 | Cape Town, South Africa | 7.2 | 5.7 | 6 | 4 | 5.7 | 5.9 | 11.8 | 9.6 | 7.5 | 7.1 | 9.8 | 6.6 | 6.9 | 5.9 | 6.7 | 7.6 | 8 | 11.2 | -- | -- |
| 104 | Worcester, South Africa | 6.5 | 4.7 | 4.9 | 3.9 | 4.3 | 5.3 | 9.7 | 8.3 | 9 | 7.3 | 8.2 | 5.6 | 5.8 | 6.7 | 7.9 | 8.3 | -- | 8.7 | -- | -- |
| 105 |  Pemba, Mozambique | 6 | 3.6 | 3.5 | 2.6 | 3 | 5 | 5.3 | 13.6 | 10.4 | 6.6 | 5.5 | 6.2 | 6.2 | 8.5 | -- | -- | -- | -- | -- | -- |
| 106 | Nieuwoudtville, South Africa | 1.2 | 1.1 | 1.3 | 1.1 | 1 | 1.8 | 2.1 | 0.5 | 0.8 | 1.4 | 1.6 | 0.9 | 0.8 | 2.1 | 3.4 | 3.9 | -- | -- | -- | -- |
