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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7551 |  Wadsworth USA | 5.7 | 6.1 | 10.6 | 9.7 | 12.6 | 11.2 | 13 | -- | -- |
| 7552 | Enterprise USA | 5.7 | 8.6 | 9.1 | 15 | 7.7 | 8.7 | 6.5 | 8.4 | 8.6 |
| 7553 | Estacada USA | 5.7 | 4.7 | 6.2 | 5.9 | 5.5 | -- | -- | -- | -- |
| 7554 | Green USA | 5.7 | 5.1 | 9.6 | -- | -- | -- | -- | -- | -- |
| 7555 | Hood River USA | 5.7 | 5.5 | 7.5 | 8.7 | 7.7 | 14.6 | 9.8 | -- | -- |
| 7556 | John Day USA | 5.7 | 12.1 | 9.9 | 7.6 | 8.8 | 10.8 | 8.9 | 10.6 | 11.1 |
| 7557 | Prineville USA | 5.7 | 7.3 | 8.3 | 6.9 | 10.1 | 11.2 | 7.6 | 9.7 | 11.5 |
| 7558 | Ronco USA | 5.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 7559 | Eagle Butte USA | 5.7 | 2.9 | -- | -- | -- | -- | -- | -- | -- |
| 7560 | Loretto USA | 5.7 | 6.1 | 9.7 | 8.9 | 11.4 | 7.3 | -- | -- | -- |
| 7561 | Brewster USA | 5.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 7562 | Rockport USA | 5.7 | 7 | 8.6 | 7.5 | 7.9 | 8.8 | -- | -- | -- |
| 7563 | Cedar Hills USA | 5.7 | 5.9 | 5.2 | 5.3 | 8.8 | 7.9 | 5.5 | -- | -- |
| 7564 | Hooper USA | 5.7 | 7.2 | 7.3 | 8.4 | 12.1 | 10.3 | -- | -- | -- |
| 7565 | Millcreek USA | 5.7 | 6.9 | 7.7 | 8.4 | 7 | -- | -- | -- | -- |
| 7566 | Myton USA | 5.7 | 7.4 | -- | -- | -- | -- | -- | -- | -- |
| 7567 | Orem USA | 5.7 | 6 | 5.5 | 6.1 | 8.7 | 7.4 | 4.9 | -- | -- |
| 7568 | Toquerville USA | 5.7 | 4.8 | -- | -- | -- | -- | -- | -- | -- |
| 7569 | Windsor USA | 5.7 | 5.3 | 8.2 | -- | -- | -- | -- | -- | -- |
| 7570 | Giles USA | 5.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 7571 | Covington USA | 5.7 | 5.2 | 7.1 | 2.3 | -- | -- | -- | -- | -- |
| 7572 | Metaline USA | 5.7 | 4.5 | 6 | 8.1 | 14.7 | -- | -- | -- | -- |
| 7573 | Orchards USA | 5.7 | 4.8 | 9.3 | 15 | 6.8 | -- | -- | -- | -- |
| 7574 | Woodland USA | 5.7 | 5.2 | 6.2 | 10 | 7.2 | -- | -- | -- | -- |
| 7575 |  Mendoza Argentina | 5.6 | 5.1 | 7.2 | 8.2 | 9.3 | -- | -- | -- | -- |
| 7576 |  Alexandria Australia | 5.6 | 6.2 | 10.3 | -- | -- | -- | -- | -- | -- |
| 7577 | Cooma Australia | 5.6 | 4.7 | 4.7 | 4.1 | 6 | -- | -- | -- | -- |
| 7578 | Blackwater Australia | 5.6 | 5.4 | 6.4 | 4.5 | 4.7 | 5.1 | -- | -- | -- |
| 7579 | Windsor Australia | 5.6 | 5.9 | 6 | -- | -- | -- | -- | -- | -- |
| 7580 |  Bibewier Austria | 5.6 | 5.7 | -- | -- | -- | -- | -- | -- | -- |
| 7581 |  Ganges Canada | 5.6 | 5.4 | 7.8 | -- | -- | -- | -- | -- | -- |
| 7582 | Trail Canada | 5.6 | 5.4 | 9.8 | 10.1 | 21.3 | -- | -- | -- | -- |
| 7583 | West End Canada | 5.6 | 7.1 | -- | -- | -- | -- | -- | -- | -- |
| 7584 |  Vilsandi Estonia | 5.6 | 4.9 | 4.4 | 4 | 4.1 | 5.1 | 5.7 | 6 | 3.4 |
| 7585 |  Lappeenranta Finland | 5.6 | 5.2 | 4.8 | 4.9 | 5.4 | 4.9 | 5.2 | 6.8 | 6 |
| 7586 |  Kiel Germany | 5.6 | 6.5 | 7.3 | 9.4 | 9.8 | 9.9 | 12.2 | 13.3 | 12.5 |
| 7587 | Neuhaus am Rennweg Germany | 5.6 | 5.9 | 4.8 | 5.4 | 5.5 | -- | -- | -- | -- |
| 7588 |  Miyako Japan | 5.6 | 7.7 | 7.8 | 7.3 | 7.7 | -- | -- | -- | -- |
| 7589 |  Yanahuanca Peru | 5.6 | 5.9 | -- | -- | -- | -- | -- | -- | -- |
| 7590 |  Chamusca Portugal | 5.6 | 5.3 | 4.9 | 4.6 | 5.8 | 5.6 | 7 | 7.2 | 8.4 |
| 7591 | Santiago do Cacém Portugal | 5.6 | 8.3 | 6.4 | 6.4 | 5 | 5.5 | 5.4 | 10.2 | -- |
| 7592 |  Laza Spain | 5.6 | 4.2 | 4 | 6.8 | 5.6 | 5.8 | 5.9 | 6.2 | 7.5 |
| 7593 | Arrubal Spain | 5.6 | 5.6 | 6.8 | 7.8 | 8.8 | 8.3 | 7.6 | -- | -- |
| 7594 | Patones Spain | 5.6 | 6 | 5.7 | 6.6 | 6.8 | 6.9 | 7.2 | 7 | 8.4 |
| 7595 |  Whaley Bridge United Kingdom | 5.6 | 5.2 | 5.8 | -- | -- | -- | -- | -- | -- |
| 7596 | Casas Adobes USA | 5.6 | 5.4 | 7 | 3.9 | 5.3 | -- | -- | -- | -- |
| 7597 | Roland USA | 5.6 | 5.1 | 8.8 | 6.9 | 12.3 | 9.1 | -- | -- | -- |
| 7598 | Arnold USA | 5.6 | 5.9 | 7.4 | 7.5 | 12.4 | 17.8 | 7.5 | -- | -- |
| 7599 | Castroville USA | 5.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 7600 | Coalinga USA | 5.6 | 6.5 | 7.1 | 8.8 | 13.1 | -- | -- | -- | -- |
