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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2210 |  Valparaiso Chile | 11.9 | 12.4 | 15.1 | 17.7 | 14.2 | 12.9 | 14.4 | 13.4 | 13.8 |
| 2211 |  Kladno Czech Republic | 11.9 | 11.9 | 10.4 | 13.1 | 12 | 12.3 | 12.2 | 19 | 18 |
| 2212 | Unhost Czech Republic | 11.9 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2213 | Spešov Czech Republic | 11.9 | 20.3 | 20 | -- | -- | -- | -- | -- | -- |
| 2214 |  Bueren Germany | 11.9 | 12.3 | -- | -- | -- | -- | -- | -- | -- |
| 2215 |  Budapest Hungary | 11.9 | 12 | 11.7 | 11.2 | 14.2 | 13.8 | 14 | 16.5 | -- |
| 2216 | Pecs Hungary | 11.9 | 13.3 | 11.9 | 12.7 | 14 | 14.2 | 14.7 | 16.6 | -- |
| 2217 |  `En Boqeq Israel | 11.9 | 11.6 | -- | -- | -- | -- | -- | -- | -- |
| 2218 |  Terlizzi Italy | 11.9 | 11.4 | 15.6 | 16.6 | 16.1 | 19.6 | 19.9 | -- | -- |
| 2219 |  Tokai Japan | 11.9 | 8.6 | 8.9 | 9.3 | 9.4 | 11.3 | 13.4 | 14.8 | 14.3 |
| 2220 | Aioi Japan | 11.9 | 9.4 | 10.4 | 9.2 | 8.8 | 9.3 | 10.7 | 11.4 | 11.6 |
| 2221 | Higashikankicho Kanki Japan | 11.9 | 10 | 8.3 | -- | -- | -- | -- | -- | -- |
| 2222 | Kasaoka Japan | 11.9 | 12.9 | 14.7 | 14.6 | 14.1 | 14.4 | 15.7 | 17.1 | 17 |
| 2223 | Fukai Higashimachi Japan | 11.9 | 10.3 | 13.2 | -- | -- | -- | -- | -- | -- |
| 2224 | Mima Japan | 11.9 | 9.8 | 10.6 | 10.4 | 9.6 | 11.6 | 11.4 | 12.3 | 12.1 |
| 2225 |  Tanjong Dua Belas Malaysia | 11.9 | 15.3 | 20.8 | -- | -- | -- | -- | -- | -- |
| 2226 |  Nieuwegein Netherlands | 11.9 | 20 | -- | -- | -- | -- | -- | -- | -- |
| 2227 |  Singapore Singapore | 11.9 | 11.4 | 13.4 | 13.3 | 13.8 | 11.8 | 19 | 14.8 | 13.3 |
| 2228 |  Vranov nad Toplou Slovakia | 11.9 | 15 | 13 | 15.1 | 16.6 | 14.4 | 16.2 | 18.7 | 19.7 |
| 2229 | Liptovsky Mikulas Slovakia | 11.9 | 13.2 | 12.1 | -- | -- | -- | -- | -- | -- |
| 2230 |  Boseong South Korea | 11.9 | 8.2 | 12.4 | 18.7 | 13.8 | -- | -- | -- | -- |
| 2231 |  Sant Francesc de Formentera Spain | 11.9 | 11.6 | -- | -- | -- | -- | -- | -- | -- |
| 2232 | Granollers Spain | 11.9 | 22.4 | -- | -- | -- | -- | -- | -- | -- |
| 2233 |  Banqiao Taiwan | 11.9 | 13.6 | 14.1 | 10.5 | -- | -- | -- | -- | -- |
| 2234 |  Compton USA | 11.9 | 11.9 | 12.3 | 14.2 | 15.4 | 18 | 15.7 | -- | -- |
| 2235 | Hanford USA | 11.9 | 12.2 | 13 | 14.8 | 15.4 | 20.4 | -- | -- | -- |
| 2236 | Pasadena USA | 11.9 | 11 | 11.5 | 11.4 | 13.9 | 16.2 | 13.5 | -- | -- |
| 2237 |  Favoriten Austria | 11.8 | 28.4 | -- | -- | -- | -- | -- | -- | -- |
| 2238 |  Heist-op-den-Berg Belgium | 11.8 | 10.8 | 13 | 16.7 | 18.8 | -- | -- | -- | -- |
| 2239 | Ledeberg Belgium | 11.8 | 12.1 | -- | -- | -- | -- | -- | -- | -- |
| 2240 | Zulte Belgium | 11.8 | 9.8 | 12.6 | 16.3 | 17.3 | -- | -- | -- | -- |
| 2241 | Arica Chile | 11.8 | 10 | 10.7 | 11.9 | 11.5 | 11.8 | 10.8 | 12.5 | 12 |
| 2242 | Curacavi Chile | 11.8 | 10.6 | 12.5 | 14 | 7.1 | -- | -- | -- | -- |
| 2243 |  Vendenheim France | 11.8 | 9 | 7.9 | -- | -- | -- | -- | -- | -- |
| 2244 | Mutlangen Germany | 11.8 | 13.3 | -- | -- | -- | -- | -- | -- | -- |
| 2245 | Stadtbergen Germany | 11.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2246 |  Pelopi Greece | 11.8 | 11.7 | -- | -- | -- | -- | -- | -- | -- |
| 2247 | Székesfehérvár Hungary | 11.8 | 12.9 | 9.5 | 14.8 | 13.3 | 14.9 | -- | -- | -- |
| 2248 | Supino Italy | 11.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2249 | Belluno Italy | 11.8 | 11.8 | -- | -- | -- | -- | -- | -- | -- |
| 2250 | Takasago Japan | 11.8 | 9.2 | 11.6 | 11.8 | 10.7 | 11.6 | 13 | 13.2 | 13.8 |
| 2251 | Shimizucho Japan | 11.8 | 9.9 | 12.4 | -- | -- | -- | -- | -- | -- |
| 2252 | Yao Japan | 11.8 | 9.1 | 12.5 | 11.5 | 9.9 | 8.3 | 12.9 | 13.2 | 13.4 |
| 2253 | Roden Netherlands | 11.8 | 13.3 | -- | -- | -- | -- | -- | -- | -- |
| 2254 |  Jaslo Poland | 11.8 | 10.2 | 12.1 | 13.4 | 15.9 | 13.2 | -- | -- | -- |
| 2255 | Banska Bystrica Slovakia | 11.8 | 12.7 | 12 | 12.3 | 16.5 | 15.8 | 15.3 | 17.6 | 19.7 |
| 2256 |  Hrastnik Slovenia | 11.8 | 14.5 | 13.6 | 13.8 | 16.1 | -- | -- | -- | -- |
| 2257 | Ponferrada Spain | 11.8 | 15.6 | 20.4 | 10.6 | 10.7 | -- | -- | -- | -- |
| 2258 |  Schonenbuch Switzerland | 11.8 | 19.1 | -- | -- | -- | -- | -- | -- | -- |
| 2259 | Bern Switzerland | 11.8 | 7.2 | 9.1 | 10.5 | 9.8 | 9.4 | 10.9 | 12.8 | 13.5 |
