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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2255 |  Bellingham United Kingdom | 4.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2256 |  Sinimäe Estonia | 4.2 | 4.8 | 4.8 | -- | -- | -- | -- | -- | -- |
| 2257 | Voore Estonia | 4.2 | 3.9 | 4.1 | 3.6 | 4.9 | 4.6 | 5 | 7.1 | 3.8 |
| 2258 |  Kuyulusebil Turkey | 4.2 | 3.8 | 3.2 | 6.6 | 7.3 | -- | -- | -- | -- |
| 2259 |  Oulu Finland | 4.1 | 4.4 | 5.1 | 4.8 | 5.3 | 4.9 | 5.3 | 5.9 | 4.8 |
| 2260 | Kuopio Finland | 4.1 | 4.9 | 5.2 | 4.5 | 4.8 | 4.3 | 4.3 | 3.9 | 3.1 |
| 2261 |  Mantes-La-Jolie France | 4.1 | 3 | 2.7 | 1.5 | 13.4 | -- | -- | -- | -- |
| 2262 |  Narvik Norway | 4.1 | 4 | 4.4 | 4.4 | 5.2 | 3.9 | 5.2 | 4.6 | 3.9 |
| 2263 |  Pontevedra Spain | 4.1 | 5 | 4.4 | -- | -- | -- | -- | -- | -- |
| 2264 |  Häggvik Sweden | 4.1 | 4.5 | 4.7 | 5.7 | 5.2 | -- | 5.6 | -- | -- |
| 2265 | Raahe Finland | 4 | 4.2 | 5 | 5.9 | 5.7 | 5.9 | -- | -- | -- |
| 2266 | Tampere Finland | 4 | 4.8 | 5.2 | 4.5 | 5 | 4.5 | 4.8 | 5.7 | 3.9 |
| 2267 | Harstad Norway | 4 | 4.7 | 5.1 | 5.2 | 5.2 | 4.6 | 6.4 | -- | -- |
| 2268 | Sollentuna Sweden | 4 | 4.6 | 4.6 | 5.8 | 5.2 | 5.1 | 5.6 | -- | -- |
| 2269 | Kohtla-Järve Estonia | 3.9 | 4.9 | 4.1 | -- | -- | -- | -- | -- | -- |
| 2270 | Kokkola Finland | 3.9 | 4.4 | 3.6 | 4.2 | 4 | 4.3 | -- | -- | -- |
| 2271 | Virolahti Finland | 3.9 | 4.5 | 3.6 | 4.6 | 5.4 | 5.1 | 5 | 6.5 | 4.4 |
| 2272 |  Nadym Russia | 3.9 | 4.6 | 5.7 | 6.2 | 7.7 | -- | -- | -- | -- |
| 2273 | Norr Malma Sweden | 3.9 | 3.9 | 3.5 | 3.6 | 5 | 4.3 | 4.9 | 5 | -- |
| 2274 | Solna Sweden | 3.8 | 4.4 | 5 | 6.7 | 6 | 6.8 | 6.3 | -- | -- |
| 2275 | Castello de la Plana Spain | 3.7 | 3.2 | 3.6 | 4 | 5.6 | 7.9 | 7.2 | 7.4 | 9.9 |
| 2276 |  Akureyri Iceland | 3.5 | 45.6 | 11 | 17.8 | 5.6 | -- | -- | -- | -- |
| 2277 | Benicasim Spain | 3.5 | 4.2 | 5.3 | 4.9 | 4.4 | 4.9 | 7.1 | 6.6 | 5 |
| 2278 | West Hoathly United Kingdom | 3.5 | 4.1 | 4 | -- | -- | -- | -- | -- | -- |
| 2279 | Reykjavik Iceland | 3.4 | 3.8 | 3.9 | 3.3 | 6.4 | 7.2 | 5.5 | -- | -- |
| 2280 |  Clonskeagh Ireland | 3.4 | 4.1 | 5.7 | 6.8 | 6.5 | -- | -- | -- | -- |
| 2281 | Drumcondra Ireland | 3.4 | 5.1 | 4.5 | 0.1 | 4.3 | -- | -- | -- | -- |
| 2282 | Bodø Norway | 3.4 | 3.4 | 3.2 | -- | -- | -- | -- | -- | -- |
| 2283 | La Granja de San Ildefonso Spain | 3.4 | 2.8 | 5.2 | 5.8 | 5.6 | 5 | 5.4 | 5 | -- |
| 2284 | Haparanda Sweden | 3.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2285 |  Ordino Andorra | 3.3 | 4.2 | 5.5 | 5.4 | 7.3 | 7.4 | -- | -- | -- |
| 2286 |  Santana Portugal | 3.2 | 3 | 3.4 | 3.8 | 3.7 | 4.7 | 4.2 | 3.4 | 5.8 |
| 2287 | Siilinjaervi Finland | 3.1 | 4.4 | 5.1 | 3.8 | -- | -- | -- | -- | -- |
| 2288 | Salao Portugal | 3.1 | 4.5 | -- | -- | -- | -- | -- | -- | -- |
| 2289 | Heald Green United Kingdom | 3.1 | 4.7 | 6.3 | -- | -- | -- | -- | -- | -- |
| 2290 | Nivala Finland | 3 | 3.5 | -- | -- | -- | -- | -- | -- | -- |
| 2291 | Alftanes Iceland | 2.9 | 3.3 | -- | -- | -- | -- | -- | -- | -- |
| 2292 |  Diekirch Luxembourg | 2.8 | 2.3 | 2.5 | 6.9 | 9.8 | 7.8 | 9.3 | -- | -- |
| 2293 | Stryn Norway | 2.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2294 | Faro Portugal | 2.7 | 3 | 3.7 | 3.8 | 3.7 | 7.5 | 10.5 | 8.5 | 9.8 |
| 2295 | Gardabaer Iceland | 2.6 | 2.6 | -- | -- | -- | -- | -- | -- | -- |
| 2296 | Bredkalen Sweden | 2.4 | 2.5 | 3.1 | 4.8 | 2.8 | -- | 4.1 | 3 | 1.3 |
| 2297 | Ranua Finland | 2.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2298 | Sandgerdi Iceland | 2.2 | 2.1 | -- | -- | -- | -- | -- | -- | -- |
| 2299 | Dunblane United Kingdom | 2.1 | 2.2 | 2 | -- | -- | -- | -- | -- | -- |
| 2300 | Kittilä Finland | 1.6 | 1.8 | 0.9 | 1.7 | -- | -- | -- | -- | -- |
| 2301 | Muonio Finland | 1.4 | 2.8 | 3.6 | 1.6 | 2.9 | 2.8 | -- | -- | -- |
| 2302 | Utö Finland | 1.3 | 3 | 3.6 | -- | -- | -- | -- | -- | -- |
