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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1755 |  Yanai Japan | 9.4 | 7.9 | 9 | 8.9 | 8.6 | 9.5 | 10.3 | 10.7 | 11.4 |
| 1756 |  Shetpe Kazakhstan | 9.4 | 8 | 15.4 | 16.5 | 16.6 | -- | -- | -- | -- |
| 1757 |  Goseong South Korea | 9.4 | 9.4 | 12.8 | 12.8 | 13.5 | -- | -- | -- | -- |
| 1758 | Anjo Japan | 9.3 | 8 | 8.9 | 8.6 | 8.5 | 12.8 | 14.5 | -- | -- |
| 1759 | Okuda Japan | 9.3 | 7.7 | -- | -- | -- | -- | -- | -- | -- |
| 1760 | Tokoname Japan | 9.3 | 7.6 | 8.6 | 8.7 | 9.3 | 9.6 | 11.1 | 13.2 | 11 |
| 1761 | Mihama Japan | 9.3 | 8.4 | 9.3 | -- | -- | -- | -- | -- | -- |
| 1762 | Tajimi Japan | 9.3 | 7.6 | 8.4 | 8.9 | 8.5 | 9 | 10.6 | 10.9 | 10.7 |
| 1763 | Edosaki Japan | 9.3 | 8.1 | -- | -- | -- | -- | -- | -- | -- |
| 1764 | Inashiki Japan | 9.3 | 8 | 8.2 | 7.5 | 7.4 | 7.6 | -- | -- | -- |
| 1765 | Kagoshima Japan | 9.3 | 8.7 | 10.3 | 9.8 | 9.9 | 12.7 | 13.6 | 14 | 14.7 |
| 1766 | Shimanto Japan | 9.3 | 7.7 | 8.8 | 8.9 | 8.7 | 10.1 | 10.7 | 10.7 | 11.4 |
| 1767 | Maizuru Japan | 9.3 | 7 | 7.5 | 8 | 9.1 | 9.1 | 11.7 | 12 | 12.2 |
| 1768 | Omura Japan | 9.3 | 9 | 9.9 | 9.7 | 9.9 | 11.1 | 11.3 | -- | -- |
| 1769 | Sasebo Japan | 9.3 | 9.2 | 9.9 | 9.4 | 9.3 | 11 | 12.6 | 12.8 | 14.8 |
| 1770 | Joetsu Japan | 9.3 | 9.4 | 9.7 | 9.2 | 9.1 | 8.4 | 10 | -- | -- |
| 1771 | Hiji Japan | 9.3 | 8.4 | 9.3 | 8.7 | 8.2 | 9.3 | 10.2 | 11 | 12.4 |
| 1772 | Hidaka Japan | 9.3 | 8.8 | 9.9 | 8.9 | 8.8 | 9.9 | 12.4 | 12.9 | 11.6 |
| 1773 | Kukichuo Japan | 9.3 | 8.7 | -- | -- | -- | -- | -- | -- | -- |
| 1774 | Omihachiman Japan | 9.3 | 7.4 | 9 | 9.4 | 9.2 | 9.4 | 11.6 | 12.4 | 12.4 |
| 1775 | Mishima Japan | 9.3 | 8.1 | 8.8 | 8.4 | 9.2 | -- | 10.4 | 11.4 | 11.1 |
| 1776 | Naka Japan | 9.3 | 7.3 | 8 | 8.9 | 9.7 | 9.6 | 10.3 | 11.7 | 11.6 |
| 1777 | Honcho Japan | 9.3 | 8.1 | 8.7 | -- | -- | -- | -- | -- | -- |
| 1778 | Tama Japan | 9.3 | 8.1 | 8.8 | 8.6 | 8 | 8.7 | 10 | 10.9 | 12.2 |
| 1779 | Himi Japan | 9.3 | 8.1 | 8.8 | 8.6 | 9.5 | 8.7 | 8.3 | 10.2 | 10.3 |
| 1780 | Hashimoto Japan | 9.3 | 8 | 9.7 | 9.8 | 9 | 10.1 | 11.2 | 11.9 | 13.1 |
| 1781 | Kainan Japan | 9.3 | 7.9 | 8.6 | 7.7 | 8 | 8.9 | 9.6 | 10.2 | 10.5 |
| 1782 | Ube Japan | 9.3 | 8.2 | 9.6 | 9.3 | 9.2 | 9.7 | 11.4 | 11.9 | 12.8 |
| 1783 |  Shannan China | 9.2 | 9.2 | 8.8 | 8.5 | 8.9 | 8.7 | 9.6 | 10 | 12 |
| 1784 | Kasugai Japan | 9.2 | 8.5 | 9 | 9.4 | 10.5 | 10.2 | 11.8 | 12.6 | 12.6 |
| 1785 | Chiba Japan | 9.2 | 8.4 | 9.3 | 9.1 | 8.7 | 9.1 | 10.4 | 11 | 10.7 |
| 1786 | Funabashi Japan | 9.2 | 8.4 | 9.3 | 8.9 | 8.8 | 11.2 | 12.3 | 12.5 | 12 |
| 1787 | Futtsu Japan | 9.2 | 8.3 | 8.8 | 8.4 | 8.3 | 8.7 | 9.9 | 10.1 | 9.2 |
| 1788 | Kimitsu Japan | 9.2 | 8 | 8.8 | 8.4 | 8.3 | 8.8 | 9.9 | 10 | 9.9 |
| 1789 | Sakadoichiba Japan | 9.2 | 8.2 | 6.5 | -- | -- | -- | -- | -- | -- |
| 1790 | Sasaguri Japan | 9.2 | 8.5 | 10.1 | 11.3 | 10.1 | 11 | 11.4 | 13 | 13.1 |
| 1791 | Fukushima Japan | 9.2 | 8 | 8.9 | 7.6 | 7.5 | 7.7 | 10.2 | 10.6 | 9.9 |
| 1792 | Hokota Japan | 9.2 | 8 | 8.3 | 7.3 | 7 | 8.4 | -- | -- | -- |
| 1793 | Izumi Japan | 9.2 | 8.6 | 10.4 | 10.1 | 9.6 | 11.2 | 13.2 | 12.8 | 11.7 |
| 1794 | Kawasaki Japan | 9.2 | 8.3 | 8.8 | 8.8 | 8.9 | 9.5 | 11.3 | 12.6 | 12 |
| 1795 | Sagamihara Japan | 9.2 | 8.6 | 8.9 | 8.7 | 8 | 8.6 | 9.8 | 10.3 | 9.8 |
| 1796 | Owase Japan | 9.2 | 7 | 8.9 | 8.7 | 8.6 | 8.7 | 8.7 | -- | -- |
| 1797 | Miyazaki Japan | 9.2 | 8.2 | 9.9 | 11.3 | 10.5 | 10.9 | 12.2 | 12.2 | 13 |
| 1798 | Toyonomachi Toyono Japan | 9.2 | 8 | 8.9 | -- | -- | -- | -- | -- | -- |
| 1799 | Hannan Japan | 9.2 | 7.4 | 9 | 8.7 | 8.7 | 9.2 | 10.6 | 11.1 | 11.2 |
| 1800 | Otsu Japan | 9.2 | 7.5 | 8.6 | 8.2 | 8.3 | 8.6 | 9.6 | 10.1 | 10.4 |
| 1801 | Kitagata Japan | 9.2 | 7.7 | 8.2 | -- | -- | -- | -- | -- | -- |
| 1802 | Hagiwara Japan | 9.2 | 10.5 | -- | -- | -- | -- | -- | -- | -- |
| 1803 | Tokushima Japan | 9.2 | 7.4 | 8.1 | 8.4 | 7.9 | 8.5 | 9.3 | 10.3 | 11.6 |
| 1804 | Hino Japan | 9.2 | 8 | 8.8 | 8.5 | 8.3 | 8.9 | 11.2 | 12.5 | 12 |
