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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2205 |  Kópavogur Iceland | 5 | 4.7 | 4.4 | 3.7 | 4.9 | 6.9 | 6.9 | 5.8 | 5.7 |
| 2206 |  Sines Portugal | 5 | 5.4 | 7 | 9.4 | 6.8 | 6.2 | 6.8 | 5.9 | 4.9 |
| 2207 |  Varkaus Finland | 4.9 | 4.8 | 4.4 | 4.5 | 5 | -- | 5.2 | 5.9 | 4.4 |
| 2208 | Taipalsaari Finland | 4.9 | 4.6 | 4.5 | 4.6 | -- | -- | -- | -- | -- |
| 2209 | Savonlinna Finland | 4.9 | 4.7 | 5.4 | 3 | -- | -- | -- | -- | -- |
| 2210 |  Netphen Germany | 4.9 | 5 | 5.3 | 9.1 | 8.9 | -- | -- | -- | -- |
| 2211 | Algueirão–Mem Martins Portugal | 4.9 | 7.3 | 8.2 | -- | -- | -- | -- | -- | -- |
| 2212 | Almada Portugal | 4.9 | 4.8 | 5 | 6.9 | 8.1 | 9 | 9.6 | 13.5 | 14.8 |
| 2213 |  Gaucin Spain | 4.9 | 5.2 | -- | -- | -- | -- | -- | -- | -- |
| 2214 | Lalastra Spain | 4.9 | 4.3 | 4.7 | 5.6 | 4.1 | 5.8 | 6.3 | 5.5 | 5.3 |
| 2215 | Alella Spain | 4.9 | 4.8 | -- | -- | -- | -- | -- | -- | -- |
| 2216 |  Hedemora Sweden | 4.9 | 6.3 | 7.5 | 10.6 | 6.1 | 5.6 | -- | -- | -- |
| 2217 | Linköping Sweden | 4.9 | 5 | -- | -- | -- | -- | -- | -- | -- |
| 2218 | Jyväskylä Finland | 4.8 | 4.7 | 4.5 | 4.7 | 5.2 | 4.7 | 5 | -- | -- |
| 2219 | Zorita del Maestrazgo Spain | 4.8 | 2.8 | 3.9 | 6.5 | 6.3 | 7.9 | 6 | 6.6 | 6.9 |
| 2220 | Motala Sweden | 4.8 | 4.6 | -- | -- | -- | -- | -- | -- | -- |
| 2221 | Norrköping Sweden | 4.8 | 4.9 | -- | -- | -- | -- | -- | -- | -- |
| 2222 | Hafnarfjörður Iceland | 4.7 | 6.2 | 4.4 | -- | -- | -- | -- | -- | -- |
| 2223 | Hveragerdi Iceland | 4.7 | 3.1 | -- | -- | -- | -- | -- | -- | -- |
| 2224 | Funchal Portugal | 4.7 | 5.3 | 5.8 | 6.3 | 5.2 | 5.9 | 6 | 5.2 | 5.6 |
| 2225 | Cervo Spain | 4.7 | 5.2 | 7.3 | -- | -- | -- | -- | -- | -- |
| 2226 | Vasastan Sweden | 4.7 | 4.8 | 4.7 | 5.3 | 5.9 | -- | -- | -- | -- |
| 2227 |  Gambarogno Switzerland | 4.7 | 4.2 | 8.2 | 11.6 | 10.1 | 10.2 | 10.3 | -- | -- |
| 2228 |  Motherwell United Kingdom | 4.7 | 4.4 | 4.1 | 4.7 | 5.2 | 5.3 | 6.1 | -- | -- |
| 2229 | Munlochy United Kingdom | 4.7 | 4.7 | 5.6 | 4.2 | 9.1 | 10.3 | 10.8 | -- | -- |
| 2230 |  Axams Austria | 4.6 | 4 | 8.1 | 8.6 | 9 | 8 | 8.3 | -- | -- |
| 2231 | Ebensee Austria | 4.6 | 5.1 | 6.1 | 5.1 | 4.9 | 5.4 | 7.4 | 6.2 | 4.3 |
| 2232 | Kouvola Finland | 4.6 | 4.8 | 3.2 | 4.5 | 4.9 | 4.6 | 4.7 | -- | -- |
| 2233 | Harjavalta Finland | 4.6 | 4.5 | 4.3 | 4.4 | 5.2 | 5.7 | -- | -- | -- |
| 2234 |  Schirmeck France | 4.6 | 4.3 | 5 | 5.7 | 5 | -- | -- | -- | -- |
| 2235 | Gersfeld Germany | 4.6 | 4.9 | 4.9 | -- | -- | -- | -- | -- | -- |
| 2236 |  Livigno Italy | 4.6 | 4.5 | 4.8 | -- | -- | -- | -- | -- | -- |
| 2237 | Sa Pobla Spain | 4.6 | 4.1 | 7.1 | 9.4 | 8.1 | -- | -- | -- | -- |
| 2238 | Algar de Palancia Spain | 4.6 | 6.1 | 5.3 | 3.7 | 4.2 | 5.2 | 6 | 6.2 | 5.2 |
| 2239 | Villar del Arzobispo Spain | 4.6 | 4.4 | 5 | 5 | 7.1 | 9.4 | 9.2 | 8.2 | 8.1 |
| 2240 | Jönköping Sweden | 4.6 | 2.3 | -- | -- | -- | -- | -- | -- | -- |
| 2241 | Uppsala Sweden | 4.6 | 4.5 | 3.9 | 4.6 | 5 | 4.4 | 5.5 | 6.7 | 4.6 |
| 2242 | Newquay United Kingdom | 4.6 | 3.8 | 5.5 | 6.9 | 6.3 | 8.5 | 8.8 | -- | -- |
| 2243 |  Tallinn Estonia | 4.5 | 4.3 | 4.6 | 4.8 | 5.9 | 6.2 | 5.5 | 7.1 | 4.9 |
| 2244 | Narva Estonia | 4.5 | 4.5 | 4.8 | 4.8 | 5.3 | 4.4 | 5.2 | 6.1 | 4.3 |
| 2245 | Rauma Finland | 4.5 | 4.7 | 3.4 | 5.8 | 12.9 | -- | -- | -- | -- |
| 2246 | Joensuu Finland | 4.5 | 4.9 | 5.3 | 4.8 | 5.5 | -- | -- | -- | -- |
| 2247 | Fiães Portugal | 4.5 | 4.9 | 4.7 | -- | -- | -- | -- | -- | -- |
| 2248 | Saltsjoebaden Sweden | 4.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2249 | Church Hill United Kingdom | 4.5 | 4 | 3.8 | -- | -- | -- | -- | -- | -- |
| 2250 | Palmse Estonia | 4.4 | 4.3 | 4.1 | 6.5 | 5.6 | 6.8 | 6.3 | 8 | 4 |
| 2251 | Raisio Finland | 4.4 | 4.3 | 4.6 | 4.4 | 4.8 | -- | -- | -- | -- |
| 2252 | Pietarsaari Finland | 4.4 | 4.5 | 4.9 | 4.4 | 4.1 | -- | -- | -- | -- |
| 2253 | Boo Sweden | 4.4 | 4.6 | 5.6 | 6.3 | 8.4 | -- | -- | -- | -- |
| 2254 |  Trondheim Norway | 4.3 | 4.5 | 5.2 | 5.2 | 6.1 | 4.8 | 5.9 | 6.4 | 5.1 |
