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
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1860 |  Baile Herculane Romania | 13.7 | 11.6 | -- | -- | -- | -- | -- | -- | -- |
| 1861 |  Zilina Slovakia | 13.7 | 15.5 | 14.6 | 21.5 | 19.3 | 17.2 | 18.6 | 21.8 | 25.9 |
| 1862 |  Novo Mesto Slovenia | 13.7 | 15.6 | 17.2 | 17.6 | -- | -- | -- | -- | -- |
| 1863 |  Kraaifontein South Africa | 13.7 | 14.6 | 9.6 | 16.3 | 20.4 | -- | -- | -- | -- |
| 1864 |  Yeongyang South Korea | 13.7 | 13 | 12 | -- | -- | -- | -- | -- | -- |
| 1865 | Jinan South Korea | 13.7 | 11 | 15.1 | 20.4 | 15.6 | -- | 25.8 | -- | -- |
| 1866 | Jinwol South Korea | 13.7 | 11 | 13.7 | -- | -- | -- | -- | -- | -- |
| 1867 |  Bloomington USA | 13.7 | 13.9 | 13.8 | 14.4 | -- | -- | -- | -- | -- |
| 1868 | Florence-Graham USA | 13.7 | 12.7 | 11.6 | 11.5 | 15.5 | -- | 16.1 | -- | -- |
| 1869 |  Can Tho Vietnam | 13.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1870 |  Osijek Croatia | 13.6 | 14 | 14.9 | 20 | -- | -- | -- | -- | -- |
| 1871 |  Batumi Georgia | 13.6 | 11.9 | 15.4 | 14.1 | 14.3 | 17 | -- | -- | -- |
| 1872 |  Kavala Greece | 13.6 | 19.1 | -- | -- | -- | -- | -- | -- | -- |
| 1873 |  Timorim Israel | 13.6 | 14.5 | 19.1 | -- | -- | -- | -- | -- | -- |
| 1874 |  Villa Carcina Italy | 13.6 | 14 | 13.2 | -- | -- | -- | -- | -- | -- |
| 1875 |  Bukit Mertajam Malaysia | 13.6 | 15.9 | 15.7 | -- | -- | -- | -- | -- | -- |
| 1876 |  Kudahuvadhoo Maldives | 13.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1877 |  Binangonan Philippines | 13.6 | 17.5 | -- | -- | -- | -- | -- | -- | -- |
| 1878 | Abucay Philippines | 13.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1879 |  Bialystok Poland | 13.6 | 13.8 | 12.4 | 13.3 | 16.1 | 13.8 | 13.7 | 16.3 | 17 |
| 1880 | Sopot Poland | 13.6 | 12.2 | 10.4 | 14.1 | 12.7 | -- | -- | -- | -- |
| 1881 |  Vrsac Serbia | 13.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1882 | Empangeni South Africa | 13.6 | 10.6 | 12 | -- | -- | -- | -- | -- | -- |
| 1883 | Mahikeng South Africa | 13.6 | 13.2 | 17.9 | 8.4 | 14.3 | 11.3 | 26.5 | -- | -- |
| 1884 | Haman South Korea | 13.6 | 10 | 14.2 | -- | -- | -- | -- | -- | -- |
| 1885 | Namhae South Korea | 13.6 | 10 | 16.1 | -- | -- | -- | -- | -- | -- |
| 1886 |  Muak Lek Thailand | 13.6 | 14.3 | -- | -- | -- | -- | -- | -- | -- |
| 1887 |  Karaman Turkey | 13.6 | 13.7 | 14.1 | 15.5 | -- | -- | -- | -- | -- |
| 1888 |  Tsaghkadzor Armenia | 13.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1889 |  Fraijanes Guatemala | 13.5 | 10.3 | -- | -- | -- | -- | -- | -- | -- |
| 1890 |  Champasak Laos | 13.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1891 |  Bayantal Mongolia | 13.5 | 15.7 | 14.3 | 12.9 | 14.8 | -- | -- | -- | -- |
| 1892 |  Grafhorst Netherlands | 13.5 | 18.9 | -- | -- | -- | -- | -- | -- | -- |
| 1893 | Dongducheon South Korea | 13.5 | 13.4 | 15.6 | 15.9 | 15.6 | -- | 27.6 | 25.6 | 32.5 |
| 1894 | Bonggang South Korea | 13.5 | 8.5 | 14.8 | -- | -- | -- | -- | -- | -- |
| 1895 |  Liestal Switzerland | 13.5 | 9.7 | 14.9 | 12.8 | 12.8 | 13.7 | 14.7 | -- | -- |
| 1896 | Chiasso Switzerland | 13.5 | 14.7 | 14.6 | 17.2 | 16.2 | -- | -- | -- | -- |
| 1897 | Pak Chong Thailand | 13.5 | 11.9 | 4.7 | -- | -- | -- | -- | -- | -- |
| 1898 | Tavsanli Turkey | 13.5 | 11.3 | 12.7 | -- | -- | -- | -- | -- | -- |
| 1899 |  Velyki Mosty Ukraine | 13.5 | 17.1 | -- | -- | -- | -- | -- | -- | -- |
| 1900 |  Cerqueira Cesar Brazil | 13.4 | 16.9 | -- | -- | -- | -- | -- | -- | -- |
| 1901 |  Puerto Montt Chile | 13.4 | 15.8 | 14.5 | 17.9 | 16.6 | 18.9 | 26.4 | 22.6 | 29.6 |
| 1902 |  Golog China | 13.4 | 12.7 | 13.4 | 15.7 | 14.5 | 13.8 | 19.1 | 21.2 | 27.1 |
| 1903 |  Medellin Colombia | 13.4 | 14.8 | 15.5 | 15.9 | 15.6 | 19.1 | 19.9 | -- | -- |
| 1904 |  Dolní Lutyně Czech Republic | 13.4 | 15.5 | 15.9 | 20.7 | 22.8 | 20.9 | 27.7 | 35.8 | 32.3 |
| 1905 | Znojmo Czech Republic | 13.4 | 13 | 11.9 | 12.2 | 11.8 | 11.9 | 14.2 | 19.7 | 17.4 |
| 1906 |  Várpalota Hungary | 13.4 | 15 | 13.4 | 12.8 | 15.1 | 14.7 | -- | -- | -- |
| 1907 | Mitzpe Netofa Israel | 13.4 | 14 | 13.3 | -- | -- | -- | -- | -- | -- |
| 1908 | Sainyabuli Laos | 13.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1909 |  Kaunas Lithuania | 13.4 | 12.3 | 11.4 | 13.7 | 13.4 | 10.8 | 12.2 | 15.1 | -- |
