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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4470 |  Rutherford USA | 8.5 | 7.9 | -- | -- | -- | -- | -- | -- | -- |
| 4471 | South Bound Brook USA | 8.5 | 7.4 | 11.2 | -- | -- | -- | -- | -- | -- |
| 4472 | Hobbs USA | 8.5 | 6.6 | 6.8 | 5.2 | 6.4 | 6.4 | 7.9 | 7.6 | -- |
| 4473 | Concord USA | 8.5 | 8.7 | 12 | -- | -- | -- | -- | -- | -- |
| 4474 | Hickory USA | 8.5 | 8.2 | 8.5 | 8.5 | 9.6 | 8 | 8.7 | 8.3 | 9.1 |
| 4475 | High Point USA | 8.5 | 9.4 | -- | -- | -- | -- | -- | -- | -- |
| 4476 | Holly Springs USA | 8.5 | 9.2 | 11.9 | 11.2 | -- | -- | -- | -- | -- |
| 4477 | Bloomingdale USA | 8.5 | 8.4 | -- | -- | -- | -- | -- | -- | -- |
| 4478 | Dayton USA | 8.5 | 7.8 | 11 | 9.6 | 10.6 | 10.4 | 9 | 8.2 | 7.1 |
| 4479 | Waverly USA | 8.5 | 8.1 | 10.3 | -- | -- | -- | -- | -- | -- |
| 4480 | Braddock Hills USA | 8.5 | 7.5 | 10.7 | -- | -- | -- | -- | -- | -- |
| 4481 | Carlisle USA | 8.5 | 8 | 12.4 | 12.5 | 13.5 | 10 | 11.1 | 9.5 | 9.5 |
| 4482 | Carrolltown USA | 8.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4483 | Emsworth USA | 8.5 | 8.6 | 13.7 | 13.3 | 12.5 | -- | -- | -- | -- |
| 4484 | Finleyville USA | 8.5 | 7 | 11 | -- | -- | -- | -- | -- | -- |
| 4485 | Fredericktown USA | 8.5 | 7.9 | -- | -- | -- | -- | -- | -- | -- |
| 4486 | Freeport USA | 8.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4487 | Glendale USA | 8.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4488 | Monaca USA | 8.5 | 7.5 | 11.9 | 10.7 | 12.7 | -- | -- | -- | -- |
| 4489 | Philadelphia USA | 8.5 | 7.7 | 11.9 | 9.1 | 11.5 | 9.5 | 10.5 | 9.3 | 9.6 |
| 4490 | Selinsgrove USA | 8.5 | 8.7 | 14.2 | 14.1 | 13.9 | -- | -- | -- | -- |
| 4491 | Strasburg USA | 8.5 | 8 | 25.9 | 7.3 | 13.3 | -- | -- | -- | -- |
| 4492 | West Newton USA | 8.5 | 7.2 | 13.3 | 12.8 | 15.5 | -- | -- | -- | -- |
| 4493 | Brownsville USA | 8.5 | 9.7 | 8.5 | 7.7 | 8.5 | -- | 9.9 | 9.6 | -- |
| 4494 | Portsmouth USA | 8.5 | 7.7 | 10.6 | -- | -- | -- | -- | -- | -- |
| 4495 | Asotin USA | 8.5 | 8.8 | -- | -- | -- | -- | -- | -- | -- |
| 4496 | Peaceful Valley USA | 8.5 | 4.6 | 9.7 | 19.8 | 15.6 | -- | -- | -- | -- |
| 4497 | Rothschild USA | 8.5 | 5.5 | 7 | -- | -- | -- | -- | -- | -- |
| 4498 |  Berry Springs Australia | 8.4 | 8.4 | -- | -- | -- | -- | -- | -- | -- |
| 4499 |  Zellerndorf Austria | 8.4 | 8.6 | 8 | 8.7 | 9.8 | 8.7 | -- | -- | -- |
| 4500 | Köflach Austria | 8.4 | 9.8 | 13.8 | -- | -- | -- | -- | -- | -- |
| 4501 | Bludenz Austria | 8.4 | 7.2 | 8.8 | 14.7 | 14.8 | -- | -- | -- | -- |
| 4502 |  Berchem-Sainte-Agathe Belgium | 8.4 | 10.7 | 9.4 | -- | -- | -- | -- | -- | -- |
| 4503 | Landen Belgium | 8.4 | 8 | 8.4 | 9.6 | 11.3 | 9.1 | 10.9 | 12.8 | 12.5 |
| 4504 | Châtelet Belgium | 8.4 | 6.5 | 7.4 | 8.4 | 9.8 | 7.3 | 11.2 | 11.7 | 10.6 |
| 4505 | Engis Belgium | 8.4 | 6.5 | 6.2 | 7.8 | 9.4 | 7.4 | 12.2 | 11.9 | 12.7 |
| 4506 | Mons-lez-Liege Belgium | 8.4 | 8.2 | 4.5 | -- | -- | -- | -- | -- | -- |
| 4507 |  Mostar Bosnia Herzegovina | 8.4 | 11.9 | 14.8 | 15.4 | 10.8 | -- | -- | -- | -- |
| 4508 |  Rio de Janeiro Brazil | 8.4 | 12 | 11.7 | 10.6 | 13 | -- | -- | -- | -- |
| 4509 | Cubatao Brazil | 8.4 | 11.8 | 15.4 | 17.1 | 17 | -- | -- | -- | -- |
| 4510 |  Grimshaw Canada | 8.4 | 10.1 | 27.5 | -- | -- | -- | -- | -- | -- |
| 4511 | Wabasca-Desmarais Canada | 8.4 | 6.4 | 17.5 | 5.6 | 7.6 | -- | -- | -- | -- |
| 4512 | Coldwater Canada | 8.4 | 6.1 | 9.2 | -- | -- | -- | -- | -- | -- |
| 4513 | Guelph Canada | 8.4 | 7.1 | 10.7 | 7.3 | 8 | 7.3 | 7.1 | 8.1 | 7.3 |
| 4514 | Oakville Canada | 8.4 | 7.1 | 10.9 | 6.8 | 7.2 | 6.3 | 6.9 | 7.5 | 7.3 |
| 4515 | Terrebonne Canada | 8.4 | 7.3 | 9.2 | 8 | 8.3 | -- | -- | -- | -- |
| 4517 |  Dubrovnik Croatia | 8.4 | 7.5 | 7.6 | -- | -- | -- | -- | -- | -- |
| 4518 |  Copenhagen Denmark | 8.4 | 7.1 | 7.9 | 8.7 | 9.7 | 9.4 | 9.6 | -- | -- |
| 4519 |  Ploemeur France | 8.4 | 7.2 | 14.2 | -- | -- | -- | -- | -- | -- |
| 4520 | Port-de-Bouc France | 8.4 | 8.2 | 9 | 10.7 | 9.8 | 9.7 | 11 | 11.6 | 12.2 |
