2017-2025
World's most polluted cities
The most polluted cities according to data aggregated from over 80,000 data points.
2025
World Air Quality Report
2025
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
25.1-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4823 |  Belcourt USA | 8.2 | 7.5 | 9.6 | 6.2 | 8.8 | -- | -- | -- | -- |
| 4824 | Jamestown USA | 8.2 | 7.1 | 14.4 | -- | -- | -- | -- | -- | -- |
| 4825 | Kenmare USA | 8.2 | 7 | 10.9 | 6.4 | 8.2 | 5.2 | 4.6 | 4.8 | 5.6 |
| 4826 | Cleves USA | 8.2 | 8.2 | 10.9 | 13.4 | 8.6 | 7.6 | 8 | 8.6 | 9.7 |
| 4827 | Jackson USA | 8.2 | 7.8 | 11.3 | -- | -- | -- | -- | -- | -- |
| 4828 | Westerville USA | 8.2 | 7.4 | 12.8 | 12.2 | 15.3 | -- | -- | -- | -- |
| 4829 | Moore USA | 8.2 | 9 | 9.9 | 9.7 | 10.9 | 9.8 | 10.1 | 10 | 7.9 |
| 4830 | Oklahoma City USA | 8.2 | 8.7 | 9.5 | 9.3 | 11 | 9.5 | 9.1 | -- | -- |
| 4831 | Spiro USA | 8.2 | 8.9 | -- | -- | -- | -- | -- | -- | -- |
| 4832 | Chenoweth USA | 8.2 | 7.5 | 11.9 | -- | -- | -- | -- | -- | -- |
| 4833 | Fox Chapel USA | 8.2 | 7.4 | 10.3 | -- | -- | -- | -- | -- | -- |
| 4834 | Greene USA | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4835 | Grier City USA | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4836 | Hershey USA | 8.2 | 8.8 | 10.4 | 7.9 | 8.7 | -- | -- | -- | -- |
| 4837 | Laurel Mountain USA | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4838 | McMurray USA | 8.2 | 7.7 | 6.7 | -- | -- | -- | -- | -- | -- |
| 4839 | New Brighton USA | 8.2 | 7.5 | 11.1 | 7.6 | 11.3 | -- | -- | -- | -- |
| 4840 | Ramblewood USA | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4841 | Rochester USA | 8.2 | 6.7 | 9.9 | -- | -- | -- | -- | -- | -- |
| 4842 | Summit Hill USA | 8.2 | 7.1 | -- | -- | -- | -- | -- | -- | -- |
| 4843 | Zelienople USA | 8.2 | 7.4 | -- | -- | -- | -- | -- | -- | -- |
| 4844 | Rock Hill USA | 8.2 | 8.2 | 10.2 | 7.3 | -- | -- | -- | -- | -- |
| 4845 | St. Andrews USA | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4846 | Kingston USA | 8.2 | 8.4 | 9.4 | -- | -- | -- | -- | -- | -- |
| 4847 | Harlingen USA | 8.2 | 8.7 | -- | -- | -- | -- | -- | -- | -- |
| 4848 | San Antonio USA | 8.2 | 8.7 | 9.5 | 8.9 | 9.9 | 8.9 | 9.4 | 8 | 8.1 |
| 4849 | Beloit USA | 8.2 | 7.2 | 14.8 | 10.4 | -- | -- | -- | -- | -- |
| 4850 | Shorewood Hills USA | 8.2 | 6.8 | 11.5 | -- | -- | -- | -- | -- | -- |
| 4851 |  Mannswoerth Austria | 8.1 | 10.3 | 11.2 | 11.7 | -- | -- | -- | -- | -- |
| 4852 |  Sint-Job-in-'t-Goor Belgium | 8.1 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4853 | Awans Belgium | 8.1 | 8.1 | 7.3 | 6.9 | 12.5 | -- | -- | -- | -- |
| 4854 | Charleroi Belgium | 8.1 | 6.5 | 7 | 8.4 | 9.5 | 7.9 | 10.6 | 12 | 11.4 |
| 4855 |  Humaita Brazil | 8.1 | 64.7 | -- | -- | -- | -- | -- | -- | -- |
| 4856 |  Fox Creek Canada | 8.1 | 8.6 | -- | -- | -- | -- | -- | -- | -- |
| 4857 | Halkirk Canada | 8.1 | 12.3 | -- | -- | -- | -- | -- | -- | -- |
| 4858 | Leduc Canada | 8.1 | 9.1 | 14.8 | 7.9 | 12.9 | -- | -- | -- | -- |
| 4859 | Brantford Canada | 8.1 | 7.3 | 10.6 | 7.4 | 8 | 7.1 | 7.1 | 7.8 | 7.4 |
| 4860 | London Canada | 8.1 | 7.4 | 11.2 | 8.2 | 10.3 | 6.7 | 6.4 | 7.3 | 7.1 |
| 4861 | Uxbridge Canada | 8.1 | 6.2 | 13.2 | -- | -- | -- | -- | -- | -- |
| 4862 | Candiac Canada | 8.1 | 6.8 | 8.9 | -- | -- | -- | -- | -- | -- |
| 4863 |  Aarhus Denmark | 8.1 | 8 | 7.2 | 8.4 | 9.3 | -- | -- | -- | -- |
| 4864 |  Vaulx-en-Velin France | 8.1 | 5.2 | 7.6 | 10.4 | 10.4 | 10.7 | 10.6 | 10.8 | 11.4 |
| 4865 | Vannes France | 8.1 | 7.8 | 8.5 | 10.6 | 9.4 | 8.3 | -- | -- | -- |
| 4866 | Ajaccio France | 8.1 | 9.1 | 9.3 | 9.8 | 9.3 | 9.2 | 9.2 | -- | -- |
| 4867 | Cabestany France | 8.1 | 7.6 | 7.7 | -- | -- | -- | -- | -- | -- |
| 4868 | Saint-Denis-d'Anjou France | 8.1 | 7 | 8.2 | 8.1 | 9.1 | 8.8 | 9.2 | 10.3 | 10.3 |
| 4869 |  Heidelberg Germany | 8.1 | 8 | 7.3 | 8.9 | 9.2 | 8.5 | -- | -- | -- |
| 4870 | Jüchen Germany | 8.1 | 8.9 | -- | -- | -- | -- | -- | -- | -- |
| 4871 | Greiz Germany | 8.1 | 9.1 | 8.1 | 9.8 | 10.6 | 9.7 | 9.8 | 13.1 | 11.9 |
| 4872 |  Agios Pavlos Greece | 8.1 | 7 | 7.9 | -- | -- | -- | -- | -- | -- |
