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
PM2.5 legend
0-5Meets WHO guideline
5.1-10Exceeds by 1 to 2 times
10.1-15Exceeds by 2 to 3 times
15.1-25Exceeds by 3 to 5 times
25.1-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 255 |  Sainte-Anne-de-Bellevue Canada | 10 | 9.1 | 10.9 | 7.1 | 9.2 | 8.5 | 8.2 | 6.3 | 6.3 |
| 256 | Meadow Lake Canada | 10 | 12 | 14.7 | 8 | 15.8 | -- | -- | -- | -- |
| 257 |  Manzanillo Mexico | 10 | -- | -- | -- | -- | -- | -- | -- | -- |
| 258 |  Perris USA | 10 | 4.8 | 4.7 | 2.6 | 10.2 | 11.9 | 9.6 | -- | -- |
| 259 | Taylorsville USA | 10 | 9.5 | -- | -- | -- | -- | -- | -- | -- |
| 260 | Albany USA | 10 | 9.6 | 11.6 | 13.1 | 13.5 | -- | -- | -- | -- |
| 261 | Cicero USA | 10 | 8.6 | 11.4 | 8.6 | 8.7 | 8 | 11.3 | 9.6 | 9.3 |
| 262 | Portage Park USA | 10 | -- | -- | -- | -- | -- | -- | -- | -- |
| 263 | Minot USA | 10 | 8.6 | -- | -- | -- | -- | -- | -- | -- |
| 264 | Fountain Inn USA | 10 | 9.7 | 9.4 | -- | -- | -- | -- | -- | -- |
| 265 | Mission USA | 10 | 12.4 | 10 | 9.2 | 11.1 | 10.2 | 11 | 10.3 | 9.5 |
| 266 | Sachse USA | 10 | 7.2 | 10.2 | 9.6 | 11.2 | 9.7 | 10.8 | -- | -- |
| 267 | Waco USA | 10 | 10.9 | 10.6 | 8.7 | 6.8 | 7.5 | 6.8 | 6.9 | 6 |
| 268 | Wapato USA | 10 | 10 | 13.5 | 27.9 | 21 | -- | -- | -- | -- |
| 269 | Tomah USA | 10 | -- | -- | -- | -- | -- | -- | -- | -- |
| 270 | Bonnyville Canada | 9.9 | 12.7 | 18.6 | 8.5 | 9.1 | 4.9 | 5.5 | -- | -- |
| 271 | Janvier Canada | 9.9 | 10.1 | 14.3 | -- | -- | -- | -- | -- | -- |
| 272 | Springdale USA | 9.9 | 9.5 | 10.9 | 9.1 | 9.7 | 8.2 | 8.9 | 9.3 | 9.8 |
| 273 | Calexico USA | 9.9 | 10.5 | 9.7 | 11 | 10.8 | 13.9 | 8.9 | 12.9 | 13.6 |
| 274 | Forest Ranch USA | 9.9 | 6.8 | 6.1 | 5.3 | 20.8 | -- | -- | -- | -- |
| 275 | Los Angeles USA | 9.9 | 10.1 | 9.5 | 10.5 | 13.7 | 14.6 | 12.7 | 14.4 | 16.1 |
| 276 | West Carson USA | 9.9 | 9.8 | 11.4 | 11.9 | 17.9 | -- | -- | -- | -- |
| 277 | Valdosta USA | 9.9 | 9.3 | 10.2 | 9.8 | 9.1 | -- | -- | -- | -- |
| 278 | Rochester Hills USA | 9.9 | 8.2 | 8.7 | 7.6 | -- | -- | -- | -- | -- |
| 279 | Warren USA | 9.9 | -- | -- | -- | -- | -- | -- | -- | -- |
| 280 | Grove City USA | 9.9 | 9 | 14.3 | 13 | 13.5 | -- | -- | -- | -- |
| 281 | Middletown USA | 9.9 | 8.3 | 12.1 | -- | -- | -- | -- | -- | -- |
| 282 | Pemberville USA | 9.9 | 9.2 | 11 | -- | -- | -- | -- | -- | -- |
| 283 | Monongahela USA | 9.9 | 9.9 | -- | -- | -- | -- | -- | -- | -- |
| 284 | Drumheller Canada | 9.8 | 17.7 | -- | -- | -- | -- | -- | -- | -- |
| 285 | Wellington County Canada | 9.8 | 8.2 | 9.4 | 9.6 | 13.1 | -- | -- | -- | -- |
| 286 | Chino Hills USA | 9.8 | 10.1 | 10.7 | 10.4 | 13.8 | 15.9 | 13.2 | -- | -- |
| 287 | Rossville USA | 9.8 | 10.6 | 12.1 | -- | -- | -- | -- | -- | -- |
| 288 | West Point USA | 9.8 | 8.9 | 13.1 | -- | -- | -- | -- | -- | -- |
| 289 | Des Plaines USA | 9.8 | 7.2 | 11.1 | 8.7 | 10 | 8.6 | -- | -- | -- |
| 290 | Lansing USA | 9.8 | 7.7 | 12.3 | 9.9 | 10.8 | -- | -- | -- | -- |
| 291 | Lyons USA | 9.8 | 8.4 | -- | -- | -- | -- | -- | -- | -- |
| 292 | Crown Point USA | 9.8 | 6.4 | 14.2 | 13.9 | 13.6 | -- | -- | -- | -- |
| 293 | Harper Woods USA | 9.8 | 9 | -- | -- | -- | -- | -- | -- | -- |
| 294 | North Las Vegas USA | 9.8 | 8.8 | 3.4 | 2.1 | -- | -- | -- | -- | -- |
| 295 | Lancaster USA | 9.8 | 10.1 | 13.6 | 9.5 | 12.9 | 8.8 | 9.4 | 8.2 | 11.4 |
| 296 | Plano USA | 9.8 | 5.9 | 6.5 | 8 | 10.5 | 10.6 | 11.4 | -- | -- |
| 297 | Kehewin Canada | 9.7 | 6.4 | -- | -- | -- | -- | -- | -- | -- |
| 298 | Steinbach Canada | 9.7 | 7.3 | 13 | -- | -- | -- | -- | -- | -- |
| 299 | Little Rock USA | 9.7 | 8.7 | 10.9 | 9.3 | 10.9 | 9.1 | 9.1 | 9.4 | 9.6 |
| 300 | Buena Park USA | 9.7 | 9.9 | 12.1 | 13.5 | 15 | -- | -- | -- | -- |
| 301 | Claremont USA | 9.7 | 11.7 | 11.3 | 10.9 | 14.3 | 19.6 | 12.4 | -- | -- |
| 302 | Garden Grove USA | 9.7 | 10.7 | 10.9 | 4.8 | -- | -- | -- | -- | -- |
| 303 | La Mesa USA | 9.7 | 11.1 | 2.4 | 1.1 | 10.7 | -- | -- | -- | -- |
| 304 | Sierra Madre USA | 9.7 | 10.2 | 10.7 | 9.7 | 11.1 | 14.7 | 13 | -- | -- |
