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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7805 |  Pompano Beach USA | 5.4 | 5.3 | 6.5 | 5.9 | 6.6 | 6.1 | 6 | -- | -- |
| 7806 | Seminole USA | 5.4 | 5.1 | 6.8 | 8.7 | -- | -- | -- | -- | -- |
| 7807 | Pocatello USA | 5.4 | 6.5 | 4.7 | 6.3 | 8.1 | 6.9 | 5.7 | 6.6 | 6.4 |
| 7808 | Dodge City USA | 5.4 | 5.8 | 3.9 | 8.7 | 7 | -- | -- | -- | -- |
| 7809 | Leavenworth USA | 5.4 | 6.7 | 8.6 | 6.8 | -- | -- | -- | -- | -- |
| 7810 | Hancock USA | 5.4 | 4.3 | -- | -- | -- | -- | -- | -- | -- |
| 7811 | Chester USA | 5.4 | 5.4 | 9.8 | 8.5 | 10.7 | 9.7 | -- | -- | -- |
| 7812 | Lexington USA | 5.4 | 5 | 8 | 6.8 | 9 | -- | 8.3 | -- | -- |
| 7813 | Manchester-by-the-Sea USA | 5.4 | 4.2 | -- | -- | -- | -- | -- | -- | -- |
| 7814 | Norwell USA | 5.4 | 5.4 | 9.3 | -- | -- | -- | -- | -- | -- |
| 7815 | Forest Lake USA | 5.4 | 4.3 | 11.5 | 8.2 | -- | -- | -- | -- | -- |
| 7816 | Glasgow USA | 5.4 | 2.5 | -- | -- | -- | -- | -- | -- | -- |
| 7817 | Arthur USA | 5.4 | 6.7 | -- | -- | -- | -- | -- | -- | -- |
| 7818 | Londonderry USA | 5.4 | 5.4 | 6.6 | 5.7 | 6.5 | 6.1 | 5.1 | 5.3 | 5.1 |
| 7819 | Palmyra USA | 5.4 | 5.2 | 9.9 | 9.3 | 11 | -- | -- | -- | -- |
| 7820 | Corrales USA | 5.4 | 5.1 | 3.9 | 3.6 | 5.8 | -- | -- | -- | -- |
| 7821 | Baiting Hollow USA | 5.4 | 5 | 8.6 | -- | -- | -- | -- | -- | -- |
| 7822 | Katonah USA | 5.4 | 4.9 | 9.1 | 7.8 | 10 | -- | -- | -- | -- |
| 7823 | Williston Park USA | 5.4 | 4.8 | 9.9 | 6.9 | -- | -- | -- | -- | -- |
| 7824 | Canton USA | 5.4 | 5.8 | 4.6 | -- | -- | -- | -- | -- | -- |
| 7825 | Maysville USA | 5.4 | 2.6 | -- | -- | -- | -- | -- | -- | -- |
| 7826 | Wake Forest USA | 5.4 | 5.2 | 9.7 | 7.2 | 9 | -- | -- | -- | -- |
| 7827 | Albany USA | 5.4 | 4.6 | 5.8 | 7.3 | 5.8 | 11.3 | 6 | 6.5 | 7.1 |
| 7828 | Jacksonville USA | 5.4 | 5.1 | 10.1 | 8.2 | 13.4 | 17.3 | 9.5 | -- | -- |
| 7829 | West Haven-Sylvan USA | 5.4 | 4.6 | 6 | 8.5 | 4.9 | -- | -- | -- | -- |
| 7830 | Glenshaw USA | 5.4 | 2.5 | 4.3 | 7.5 | 12.8 | -- | -- | -- | -- |
| 7831 | Homestead USA | 5.4 | 5.7 | 9.5 | 10.1 | 13.7 | -- | -- | -- | -- |
| 7832 | Strausstown USA | 5.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 7833 | Washington USA | 5.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 7834 | Gatlinburg USA | 5.4 | 5.8 | 8.4 | 7.1 | 10.2 | -- | -- | -- | -- |
| 7835 | Bountiful USA | 5.4 | 6.2 | 6.1 | 5.7 | 9.8 | 9.7 | 4.7 | 7.4 | 9.3 |
| 7836 | Draper USA | 5.4 | 6.3 | 5.8 | 6.1 | 8.7 | 7.2 | 6 | -- | -- |
| 7837 | Holladay USA | 5.4 | 6.5 | 6.7 | 7.1 | 9.5 | 7.6 | 6.3 | -- | -- |
| 7838 | Monticello USA | 5.4 | 3.8 | 2.1 | -- | -- | -- | -- | -- | -- |
| 7839 | Salt Lake City USA | 5.4 | 6.3 | 6 | 6.4 | 9.1 | 7.2 | 6.1 | -- | -- |
| 7840 | Washington USA | 5.4 | 5.4 | 3.4 | 2.8 | 5.3 | -- | -- | -- | -- |
| 7841 | Custer USA | 5.4 | 5.2 | 4.2 | 2.5 | 6 | 5.9 | 5.6 | -- | -- |
| 7842 | Havillah USA | 5.4 | 4.3 | 6.5 | 6.2 | -- | -- | -- | -- | -- |
| 7843 | Nile USA | 5.4 | 3.9 | 6.5 | 6.4 | -- | -- | -- | -- | -- |
| 7844 | Pacific USA | 5.4 | 4.2 | 6.4 | 9.9 | 8 | 10.9 | -- | -- | -- |
| 7845 | Poulsbo USA | 5.4 | 4 | 6.3 | 9.2 | 6.9 | -- | -- | -- | -- |
| 7846 | Riverbend USA | 5.4 | 3.9 | 6.1 | -- | -- | -- | -- | -- | -- |
| 7847 | Tukwila USA | 5.4 | 4.8 | 7.4 | 10.7 | 7.4 | 9 | 6.7 | -- | -- |
| 7848 | Vancouver USA | 5.4 | 4.8 | 6.8 | 10.4 | 6.9 | 11.6 | 8.3 | 8.2 | 13.6 |
| 7849 | Laramie USA | 5.4 | 5.4 | 4.3 | 2.8 | 8.5 | -- | 4.2 | -- | -- |
| 7850 |  Port Macquarie Australia | 5.3 | 5.2 | 5.6 | 3.7 | 10.8 | 8.1 | -- | -- | -- |
| 7851 | Cannon Hill Australia | 5.3 | 6.1 | 6.9 | 6.2 | 6.1 | 6.6 | 9 | 7.9 | 8.1 |
| 7852 | Deception Bay Australia | 5.3 | 6 | 6.3 | 6 | 6.2 | -- | -- | -- | -- |
| 7853 | South Gladstone Australia | 5.3 | 5.6 | 6.7 | -- | -- | -- | -- | -- | -- |
| 7854 | Deloraine Australia | 5.3 | 5.1 | 4.1 | 5 | 5.2 | 5.3 | 6.4 | 7.7 | 7.8 |
