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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3578 |  Perry USA | 4.8 | 6.2 | 7.2 | 7.1 | 11.4 | -- | -- | -- | -- |
| 3579 | White Mesa USA | 4.8 | 4.1 | -- | -- | -- | -- | -- | -- | -- |
| 3580 | Everett USA | 4.8 | 4.4 | 6 | 9.6 | 5.6 | 10.1 | 6.6 | -- | -- |
| 3581 | Everson USA | 4.8 | 4.3 | 7 | 7.1 | -- | -- | -- | -- | -- |
| 3582 | Washougal USA | 4.8 | 4.5 | 6.3 | 9.3 | 7.7 | -- | -- | -- | -- |
| 3583 | Gillette USA | 4.8 | 9.2 | 8.2 | 5.4 | 11.5 | -- | -- | -- | -- |
| 3584 | Jackson USA | 4.8 | 5.8 | 4.1 | 4.7 | 12.9 | -- | 3.8 | -- | -- |
| 3585 |  Burnaby Canada | 4.7 | 4.4 | 5.8 | 6.8 | 5.4 | 6.6 | 4.9 | -- | -- |
| 3586 | Lytton Canada | 4.7 | 4.2 | 9.8 | 9.4 | 11.4 | -- | -- | -- | -- |
| 3587 | Port Coquitlam Canada | 4.7 | 4.1 | 6.1 | -- | -- | -- | -- | -- | -- |
| 3588 | Richmond Canada | 4.7 | 3.6 | 4.8 | 5.4 | 4.9 | 6.8 | 5.6 | -- | -- |
| 3589 | Summit Lake Canada | 4.7 | 1.5 | 1.3 | -- | -- | -- | -- | -- | -- |
| 3590 | Saint John Canada | 4.7 | 4.4 | 5.5 | 5.2 | 5.3 | 5.2 | 5.1 | 5.5 | 6.4 |
| 3591 | La Tuque Canada | 4.7 | 4.2 | 7.9 | 3.5 | 6.5 | -- | -- | -- | -- |
| 3592 | Mont-Saint-Michel Canada | 4.7 | 4.2 | 5.9 | 4.8 | 6.3 | -- | -- | -- | -- |
| 3593 | Flagstaff USA | 4.7 | 4.5 | 3.3 | 1.9 | 6.5 | -- | -- | -- | -- |
| 3594 | Payson USA | 4.7 | 3.2 | 3.9 | 3.8 | 4.2 | -- | -- | -- | -- |
| 3595 | Prescott Valley USA | 4.7 | 4.7 | 3 | 1.5 | -- | -- | -- | -- | -- |
| 3596 | Washington Park USA | 4.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 3597 | Albany USA | 4.7 | 4.4 | 6.1 | 8.3 | 8.2 | -- | -- | -- | -- |
| 3598 | Corralitos USA | 4.7 | 4.6 | 5.7 | 5.9 | 7 | -- | -- | -- | -- |
| 3599 | Emeryville USA | 4.7 | 4.8 | 6.5 | 9.9 | 8.9 | -- | -- | -- | -- |
| 3600 | Gilroy USA | 4.7 | 4.5 | 5.4 | 6.9 | 7.4 | 10.6 | 6.3 | 8.6 | 7 |
| 3601 | Hollister USA | 4.7 | 4.4 | 5.2 | 6.4 | 7.4 | 9.9 | 5.6 | 7.3 | 5.6 |
| 3602 | Livermore USA | 4.7 | 4.6 | 6 | 7.2 | 8.2 | 11.5 | 6.7 | 11.4 | 8.9 |
| 3603 | Myrtletown USA | 4.7 | 4.7 | -- | -- | -- | -- | -- | -- | -- |
| 3604 | Oakland USA | 4.7 | 4.5 | 5.9 | 7.8 | 8 | 10.7 | 7 | 13.5 | 11.4 |
| 3605 | Plumas USA | 4.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 3606 | Richmond USA | 4.7 | 4.4 | 5.8 | 7.6 | 8.1 | 10.2 | 6.5 | -- | -- |
| 3607 | Rio del Mar USA | 4.7 | 4.5 | 1.7 | 1.1 | 8.1 | -- | -- | -- | -- |
| 3608 | Santa Venetia USA | 4.7 | 4.4 | 5.5 | 6.6 | 7.9 | -- | -- | -- | -- |
| 3609 | Granby USA | 4.7 | 4.3 | 3.2 | 3.3 | 9.7 | -- | -- | -- | -- |
| 3610 | Ponderosa Park USA | 4.7 | 4.7 | 4.5 | 2.9 | -- | -- | -- | -- | -- |
| 3611 | Salida USA | 4.7 | 4.7 | 4.2 | 2.4 | 6.6 | 6.6 | 5.4 | -- | -- |
| 3612 | Wolcott USA | 4.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 3613 | Oronoque USA | 4.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 3614 | Graceville USA | 4.7 | 4.8 | 4.5 | -- | -- | -- | -- | -- | -- |
| 3615 | Honaunau-Napoopoo USA | 4.7 | 2 | 3.6 | 6.7 | 5 | -- | 3.5 | -- | -- |
| 3616 | Big Timber USA | 4.7 | 6.2 | 5.6 | 5.5 | 14.6 | -- | -- | -- | -- |
| 3617 | Carson City USA | 4.7 | 4.8 | 5.2 | 6.7 | 18.6 | 9.6 | 4.9 | 7.4 | 6.8 |
| 3618 | Enterprise USA | 4.7 | 5.2 | 4.4 | 17.1 | 6.4 | -- | -- | -- | -- |
| 3619 | Westwood USA | 4.7 | 4.4 | 4 | -- | -- | -- | -- | -- | -- |
| 3620 | Blowing Rock USA | 4.7 | 3.8 | 9.6 | 8.5 | 8.2 | -- | -- | -- | -- |
| 3621 | Ashtabula USA | 4.7 | 5.8 | 11.5 | 10.2 | 11.1 | -- | -- | -- | -- |
| 3622 | Happy Valley USA | 4.7 | 4 | 6.2 | -- | -- | -- | -- | -- | -- |
| 3623 | Newport USA | 4.7 | 4.2 | 8 | 8.2 | 10.2 | -- | -- | -- | -- |
| 3624 | Townsend USA | 4.7 | 5.2 | 5.5 | 6.7 | 11.7 | -- | -- | -- | -- |
| 3625 | Bruceville-Eddy USA | 4.7 | 5.3 | 8.2 | 6.2 | -- | -- | -- | -- | -- |
| 3626 | Snyderville USA | 4.7 | 4.9 | 4.4 | 4.3 | 8.8 | -- | -- | -- | -- |
| 3627 | Vernal USA | 4.7 | 3.8 | 6.6 | 5.1 | 8.1 | 6.5 | -- | -- | -- |
