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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1655 |  Kumagaya Japan | 9.8 | 9.3 | 10.1 | 9.5 | 9.5 | 10.3 | 13.4 | 14 | 12.9 |
| 1656 | Toda Japan | 9.8 | 9 | 10.3 | 9.5 | 9.3 | 10.1 | 11.5 | 14.9 | 13.4 |
| 1657 | Yorii Japan | 9.8 | 8.8 | 9.5 | 8.9 | 8.9 | 9.5 | 10.8 | 11.1 | 11.9 |
| 1658 | Kusatsu Japan | 9.8 | 8.2 | 9.6 | 8.7 | 8.4 | 8.8 | 10.6 | 11 | 11.3 |
| 1659 | Kiyose Japan | 9.8 | 9 | 9.6 | 8.9 | 9.1 | 9.3 | 12.1 | 13.2 | 13.6 |
| 1660 | Mizuho Japan | 9.8 | 9 | 9.8 | 9.4 | 8.9 | 9.8 | 11.7 | -- | -- |
| 1661 | Hofu Japan | 9.8 | 8.6 | 9 | 11.8 | 13.3 | 12.1 | 12.4 | 12.3 | 13 |
| 1662 | Shimonoseki Japan | 9.8 | 8.6 | 10.2 | 9.8 | 10.4 | 11.2 | 12.8 | 13.4 | 14.5 |
| 1663 |  Rudnyy Kazakhstan | 9.8 | 10.2 | 14.9 | -- | -- | -- | -- | -- | -- |
| 1664 |  Yangyang South Korea | 9.8 | 9.2 | 11.3 | -- | -- | -- | -- | -- | -- |
| 1665 |  Xilin Gol China | 9.7 | 10.8 | 11.6 | 7.3 | 11.1 | 9.8 | 10.1 | 16.1 | 15.1 |
| 1666 | Hisage Japan | 9.7 | 8.7 | -- | -- | -- | -- | -- | -- | -- |
| 1667 | Satsumasendai Japan | 9.7 | 9.3 | 11.4 | 10.7 | 10.3 | 12.4 | 13.2 | 15.2 | 16.1 |
| 1668 | Hisai-motomachi Japan | 9.7 | 7.9 | -- | -- | -- | -- | -- | -- | -- |
| 1669 | Ise Japan | 9.7 | 7.9 | 8.8 | 8 | 7.8 | 8.5 | 9.3 | 9.9 | 13.4 |
| 1670 | Shimabara Japan | 9.7 | 9.2 | 10.1 | 10.1 | 10.7 | 12.4 | 12.4 | -- | -- |
| 1671 | Tsushima Japan | 9.7 | 8.8 | 10.1 | 9.2 | 9.6 | 11 | 10.5 | -- | -- |
| 1672 | Shibata Japan | 9.7 | 8.6 | 9.8 | 8 | 8.1 | 7.9 | 9.7 | 9.4 | 9 |
| 1673 | Kaizuka Japan | 9.7 | 8.1 | 10 | 8.8 | 8.5 | 9.5 | 14.8 | 17.3 | 14.3 |
| 1674 | Shodokorocho Japan | 9.7 | 8.5 | 9.6 | -- | -- | -- | -- | -- | -- |
| 1675 | Takatsuki Japan | 9.7 | 7.8 | 9.1 | 8.6 | 7.6 | 7 | 10.8 | 11.4 | 11.7 |
| 1676 | Tosu Japan | 9.7 | 9.5 | 10.6 | 10.2 | 10.3 | 13.1 | 13.6 | 13.1 | 14.1 |
| 1677 | Kasukabe Japan | 9.7 | 8.9 | 10.5 | 11.1 | 10.9 | 11.6 | 13 | 14.6 | -- |
| 1678 | Miyashiro Japan | 9.7 | 9 | 11.4 | 10.4 | 10.6 | 11.4 | 12.5 | 14.1 | -- |
| 1679 | Moroyama Japan | 9.7 | 9.1 | 10.5 | 9.3 | 9.3 | 9.9 | 11.1 | 12.1 | -- |
| 1680 | Fukuroi Japan | 9.7 | 7.9 | 8.7 | 7.5 | 7.4 | -- | -- | -- | -- |
| 1681 | Yamanota Higashimachi Japan | 9.7 | 8.6 | -- | -- | -- | -- | -- | -- | -- |
| 1682 |  Paranaque Philippines | 9.7 | 13.7 | 17.8 | -- | -- | -- | -- | -- | -- |
| 1683 | Qamdo China | 9.6 | 9 | 9.6 | 8.8 | 9.1 | 11.1 | 11.6 | 17.5 | 18 |
| 1684 |  Padang Indonesia | 9.6 | 12.2 | 16 | 10.5 | 10.4 | 8.8 | -- | -- | -- |
| 1685 | Tahara Japan | 9.6 | 8.6 | 9.3 | 8.9 | 9 | 9.3 | 11.1 | 11.5 | 10.9 |
| 1686 | Tsushima Japan | 9.6 | 8.2 | 8.4 | 8.7 | 7.9 | 9.4 | 10.9 | 11.6 | 11 |
| 1687 | Sakura Japan | 9.6 | 7.6 | 8.2 | 7.7 | 7.3 | 7.6 | 9 | 9.8 | 10.4 |
| 1688 | Buzen Japan | 9.6 | 8.1 | 9.7 | 10 | 9.8 | 10.8 | 11.5 | 14.5 | 14.6 |
| 1689 | Chikushino Japan | 9.6 | 8.8 | 10.6 | 12 | 10.5 | -- | -- | -- | -- |
| 1690 | Itoshima Japan | 9.6 | 8.9 | 10.3 | 11.6 | 10.1 | -- | 12.4 | 13.5 | 14.6 |
| 1691 | Nakamachi Japan | 9.6 | 9 | -- | -- | -- | -- | -- | -- | -- |
| 1692 | Ashiya Japan | 9.6 | 8 | 9.4 | 9 | 9.2 | 10 | 11.2 | 11.2 | 11.2 |
| 1693 | Itami Japan | 9.6 | 7.6 | 8.3 | 9.9 | 10 | 10.2 | 11.7 | 11.3 | 11.1 |
| 1694 | Kirishima Japan | 9.6 | 8 | 11.5 | 11 | 10.1 | 12 | 12.5 | 15.4 | 15.5 |
| 1695 | Atsugi Japan | 9.6 | 8.5 | 9 | 9.3 | 8.3 | 7.3 | 8.3 | 8.9 | 8.6 |
| 1696 | Susaki Japan | 9.6 | 8.1 | 8.6 | 9.3 | 8.6 | 10.3 | 10.1 | 10.8 | 11.3 |
| 1697 | Iwashita Japan | 9.6 | 8.5 | -- | -- | -- | -- | -- | -- | -- |
| 1698 | Hagurazaki Japan | 9.6 | 8.5 | 9.1 | -- | -- | -- | -- | -- | -- |
| 1699 | Izumisano Japan | 9.6 | 8 | 9.2 | 8.4 | 7.8 | 7.2 | 10.8 | 11.6 | 11.4 |
| 1700 | Kashima Japan | 9.6 | 9.5 | 11.4 | 10.6 | 11.5 | 12.6 | 13.3 | 13.4 | 14.8 |
| 1701 | Taku Japan | 9.6 | 9 | 10.8 | 9.9 | 9.9 | 11.5 | 13.1 | 13.1 | 13.9 |
| 1702 | Higashi-Matsuyama Japan | 9.6 | 9 | -- | -- | -- | -- | -- | -- | -- |
| 1703 | Sakado Japan | 9.6 | 8.2 | 9.1 | 10.1 | 9.9 | 10.6 | 11.8 | 12.9 | -- |
| 1704 | Hikone Japan | 9.6 | 8.9 | 9.7 | 9.5 | 9.4 | 9.7 | 11.2 | 12.2 | 11.4 |
