2017-2025
World's most polluted cities | IQAir
The most polluted cities according to data aggregated from over 80,000 data points.
2025
World Air Quality Report
2025
World Air Quality Report
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6888 |  Newcastle Australia | 6.3 | 6.1 | 5.4 | 3.8 | 6.2 | 7.9 | 12.5 | 7.9 | 7.4 |
| 6889 | Ayr Australia | 6.3 | 4.8 | 6.4 | -- | -- | -- | -- | -- | -- |
| 6890 | Rocklea Australia | 6.3 | 6.6 | 10.5 | 7.6 | 5.4 | 6.5 | 9 | 6.8 | 7.2 |
| 6891 | Invermay Australia | 6.3 | 5.6 | 4.6 | -- | -- | -- | -- | -- | -- |
| 6892 |  Belem Brazil | 6.3 | 10 | -- | -- | -- | -- | -- | -- | -- |
| 6893 |  High Prairie Canada | 6.3 | 8.2 | 18.4 | -- | -- | -- | -- | -- | -- |
| 6894 | Nelson Canada | 6.3 | 7.1 | 8.5 | -- | -- | -- | -- | -- | -- |
| 6895 | Smithers Canada | 6.3 | 6.4 | 9.7 | 7.1 | 7 | 7.4 | 11.6 | -- | -- |
| 6896 | Vernon Canada | 6.3 | 5.9 | 11.8 | 9.3 | 18.6 | 7.8 | 9.1 | -- | -- |
| 6897 | Almonte Canada | 6.3 | 5.5 | 8.5 | 3.5 | 11.4 | -- | -- | -- | -- |
| 6898 | Val-d'Or Canada | 6.3 | 5.3 | 11.3 | 5.9 | -- | -- | -- | -- | -- |
| 6899 |  Nyingchi China | 6.3 | 6.2 | 5.5 | 5.7 | 8.5 | 7.3 | 8.1 | 7.8 | 11.8 |
| 6900 |  Kallio Finland | 6.3 | 5.6 | 5.2 | -- | -- | -- | -- | -- | -- |
| 6901 |  Paray-le-Frésil France | 6.3 | 5.8 | 6.7 | 7 | 6.9 | 6.4 | 6.8 | 7.4 | 7.7 |
| 6902 |  Zingst Germany | 6.3 | 7.6 | 6.8 | 7.8 | 7.9 | -- | -- | -- | -- |
| 6903 | Montabaur Germany | 6.3 | 5.6 | 6.4 | 8 | 7 | 6.7 | 7.6 | -- | -- |
| 6904 |  Tegucigalpa Honduras | 6.3 | 15.2 | 15.1 | 10.2 | 11.8 | -- | -- | -- | -- |
| 6905 |  Droichead Nua Ireland | 6.3 | 5.6 | 5.8 | 7.1 | 5.5 | -- | -- | -- | -- |
| 6906 | Kinsealy-Drinan Ireland | 6.3 | 6.3 | 6 | 6.6 | 6.2 | -- | -- | -- | -- |
| 6907 |  Kuji Japan | 6.3 | 6.2 | 6.9 | 6.3 | 11.5 | 10.4 | 12.4 | 11.5 | 11 |
| 6908 |  Gjøvik Norway | 6.3 | 6.2 | 6.9 | -- | -- | -- | -- | -- | -- |
| 6909 |  Albalat dels Tarongers Spain | 6.3 | 3.4 | 5.1 | 3.1 | 3.2 | 5.1 | 4.6 | 4.7 | 5.1 |
| 6910 |  Kungsbacka Sweden | 6.3 | 5.4 | 6.2 | 7.1 | 9.3 | -- | -- | -- | -- |
| 6911 |  Crowborough United Kingdom | 6.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6912 | Gorleston-on-Sea United Kingdom | 6.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6913 | Dundee United Kingdom | 6.3 | 5.6 | 5.2 | 5.7 | 5.2 | 4.7 | 6.5 | -- | -- |
| 6914 | Grangemouth United Kingdom | 6.3 | 5.5 | 4.9 | 5.8 | 5.3 | -- | 7.9 | 7.9 | 8 |
| 6915 | Templeton United Kingdom | 6.3 | 5.6 | 5.6 | -- | -- | -- | -- | -- | -- |
| 6916 |  Ahwahnee USA | 6.3 | 6 | 7.1 | 6.9 | 14.6 | -- | -- | -- | -- |
| 6917 | Alum Rock USA | 6.3 | 5.7 | 7.2 | 10.3 | 11.3 | -- | -- | -- | -- |
| 6918 | Catheys Valley USA | 6.3 | 6.1 | 6.8 | 8.1 | 12.2 | 18.8 | 7.5 | -- | -- |
| 6919 | Cobb USA | 6.3 | 6.1 | 6.3 | 3.7 | 10.2 | -- | -- | -- | -- |
| 6920 | Crescent City USA | 6.3 | 4.9 | 7.5 | 8.1 | 8.9 | 12.9 | -- | -- | -- |
| 6921 | Discovery Bay USA | 6.3 | 6.3 | 7.7 | 9.1 | 11.3 | -- | -- | -- | -- |
| 6922 | East Oakdale USA | 6.3 | 6.5 | 10.9 | 11.9 | 13.8 | -- | -- | -- | -- |
| 6923 | Happy Valley USA | 6.3 | 6 | 6.7 | 6.4 | -- | -- | -- | -- | -- |
| 6924 | Huron USA | 6.3 | 7.6 | 6.4 | 7.8 | 10 | 8.7 | 5.8 | 10.3 | 10.3 |
| 6925 | Oakhurst USA | 6.3 | 5.8 | 7.2 | 7.3 | 12.9 | 29.9 | 8.1 | -- | -- |
| 6926 | Oakley USA | 6.3 | 6.3 | 8.1 | 9.3 | 10.5 | -- | -- | -- | -- |
| 6927 | Rio Vista USA | 6.3 | 9.2 | 10.5 | 9.3 | 9.2 | 11.5 | 7.2 | 11.2 | 9.8 |
| 6928 | Riverside USA | 6.3 | 10.9 | 11.4 | 11 | 14.2 | 14.4 | 12.4 | 12.8 | 13.8 |
| 6929 | Solano USA | 6.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6930 | Swall Meadows USA | 6.3 | 5.2 | -- | -- | -- | -- | -- | -- | -- |
| 6931 | West Point USA | 6.3 | 5.5 | 6.7 | 7 | 14.2 | 17.9 | 6.4 | -- | -- |
| 6932 | Eaton USA | 6.3 | 6.9 | -- | -- | -- | -- | -- | -- | -- |
| 6933 | Fort Lauderdale USA | 6.3 | 6.4 | 9.2 | 9.3 | 9.2 | 10.1 | 8.5 | -- | -- |
| 6934 | Emmett USA | 6.3 | 5.5 | 8.7 | 8.3 | 5.2 | -- | 9.5 | -- | -- |
| 6935 | Mahomet USA | 6.3 | 6.9 | 11.4 | 2.7 | 9.1 | -- | -- | -- | -- |
| 6936 | Denton USA | 6.3 | 6.4 | 9.4 | -- | -- | -- | -- | -- | -- |
| 6937 | Bedford USA | 6.3 | 6.1 | 6.1 | -- | -- | -- | -- | -- | -- |
