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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1555 |  Kitahiroshima Japan | 10.2 | 6.6 | 8.5 | 8.4 | 8.3 | 9.2 | 10.2 | 10.6 | 11.5 |
| 1556 | Himeji Japan | 10.2 | 8.1 | 9.5 | 9.1 | 9.8 | 11.2 | 11.8 | 12.6 | 13.2 |
| 1557 | Muko Japan | 10.2 | 8.3 | 10.4 | 9.7 | 9.4 | 9.7 | 11 | 11.6 | 11.7 |
| 1558 | Fukaisawamachi Japan | 10.2 | 8.7 | 10.9 | -- | -- | -- | -- | -- | -- |
| 1559 | Higashihagoromo Japan | 10.2 | 8.9 | 9.9 | -- | -- | -- | -- | -- | -- |
| 1560 | Kawaguchi Japan | 10.2 | 9.2 | 9.9 | 9.6 | 9.5 | 10 | 11.5 | 12.6 | 12.8 |
| 1561 | Kazo Japan | 10.2 | 10.2 | 11.6 | 10.5 | 10.5 | 10.5 | 12.4 | 14.3 | -- |
| 1562 | Tenjin Japan | 10.2 | 9.6 | -- | -- | -- | -- | -- | -- | -- |
| 1563 | Kokacho Oharaichiba Japan | 10.2 | 8.1 | -- | -- | -- | -- | -- | -- | -- |
| 1564 | Sano Japan | 10.2 | 9.3 | 11.8 | 10.7 | 10.2 | 10.8 | 12.1 | -- | -- |
| 1565 | Koganei Japan | 10.2 | 9.6 | 11 | 10.2 | 10.2 | 16.2 | -- | -- | -- |
| 1566 | Tokyo Japan | 10.2 | 9 | 9.7 | 9.2 | 9.1 | 10.1 | 11.7 | 13.1 | 13 |
| 1567 | Iwakuni Japan | 10.2 | 8.6 | 9.7 | 9.5 | 9.4 | 9.5 | 11.5 | 13.6 | 13.8 |
| 1568 |  Muntinlupa Philippines | 10.2 | 11 | 14.4 | -- | -- | -- | -- | -- | -- |
| 1569 |  Rim Kok Thailand | 10.2 | 20 | 33.2 | 19.1 | -- | -- | -- | -- | -- |
| 1570 | Saladan Thailand | 10.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1571 | Kitakyushu Japan | 10.1 | 9.4 | 10.1 | 9.8 | 10.8 | 12.6 | 13.5 | 14 | 14.8 |
| 1572 | Sumida Japan | 10.1 | 8.6 | 6.7 | -- | -- | -- | -- | -- | -- |
| 1573 | Ide Japan | 10.1 | 7.6 | 8.8 | 8.5 | 8.6 | 9.4 | 10.6 | 11.2 | 11 |
| 1574 | Ichinoki Japan | 10.1 | 8.4 | -- | -- | -- | -- | -- | -- | -- |
| 1575 | Kuwana Japan | 10.1 | 7.9 | 8.9 | 8.5 | 8 | 8.2 | 9.9 | 10.6 | 13.1 |
| 1576 | Toencho Japan | 10.1 | 8.4 | 9.3 | -- | -- | -- | -- | -- | -- |
| 1577 | Imari Japan | 10.1 | 10.1 | 11.5 | 12 | 11.9 | 14.1 | 17.6 | 13.9 | 15.3 |
| 1578 | Takashima Japan | 10.1 | 8.5 | 9.7 | 9.4 | 9.3 | 9.1 | 10.3 | 10.8 | 11.5 |
| 1579 | Kodaira Japan | 10.1 | 8.7 | 9.2 | 8.8 | 8.2 | 8.9 | 10.3 | 12 | 11.5 |
| 1580 | Nyuzen Japan | 10.1 | 8.3 | 8.6 | 8.6 | 8.9 | 8.9 | 9.9 | 10.4 | 10.3 |
| 1581 | Khun Han Thailand | 10.1 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1582 | Bo Put Thailand | 10.1 | 7.8 | 8.3 | -- | -- | -- | -- | -- | -- |
| 1583 | Handa Japan | 10 | 8.8 | 10.6 | 12.7 | 12.8 | 12.9 | 15.3 | 15.7 | 14.4 |
| 1584 | Ogori Japan | 10 | 9 | 10.9 | 13 | 12.7 | -- | -- | -- | -- |
| 1585 | Hashima Japan | 10 | 9 | 8.4 | 8.4 | 8.5 | 9.3 | -- | -- | -- |
| 1586 | Mizuho Japan | 10 | 9.4 | 10 | 9.4 | 10.1 | -- | -- | -- | -- |
| 1587 | Shibukawa Japan | 10 | 8.7 | 9.2 | 6.4 | 8 | -- | -- | -- | -- |
| 1588 | Otake Japan | 10 | 9 | 10.5 | 10.3 | 10.7 | 10.9 | 11.6 | 12.7 | 13.3 |
| 1589 | Takehara Japan | 10 | 8.9 | 9.3 | 8.9 | 9.1 | 10.4 | 10.6 | 11.9 | 12.5 |
| 1590 | Kobe Japan | 10 | 8.3 | 9.8 | 9.4 | 9.6 | 10.1 | 11.4 | 11.7 | 12.9 |
| 1591 | Kanoya Japan | 10 | 9.4 | 11 | 13.8 | 12.1 | 14 | 14.3 | 15.5 | 15.9 |
| 1592 | Ayabe Japan | 10 | 8 | 8.9 | 8.9 | 8.9 | 8.7 | 10.9 | 11.2 | 10.9 |
| 1593 | Inabe Japan | 10 | 7.7 | 8.6 | 8.1 | 7.7 | 7.8 | 9.8 | 10.1 | 12.8 |
| 1594 | Ota Japan | 10 | 9 | -- | -- | -- | -- | -- | -- | -- |
| 1595 | Ibaraki Japan | 10 | 7.7 | 9.4 | 8.9 | 8.6 | 8.1 | 13.4 | 12.3 | 12.5 |
| 1596 | Suehirocho Japan | 10 | 8.6 | 9.5 | -- | -- | -- | -- | -- | -- |
| 1597 | Takaida Japan | 10 | 8.2 | 8.9 | -- | -- | -- | -- | -- | -- |
| 1598 | Takaishi Japan | 10 | 8.4 | 9.4 | 9.5 | 8.4 | 7.9 | 12.7 | 12.3 | 12.8 |
| 1599 | Konosu Japan | 10 | 9.2 | 10.4 | 9.3 | 9.7 | 10.3 | 11.8 | 15 | 13.6 |
| 1600 | Hikari Japan | 10 | 8.7 | 10.1 | 10.5 | 10.1 | 10.5 | 11.4 | -- | -- |
| 1601 |  Batu Feringgi Malaysia | 10 | 9.5 | -- | -- | -- | -- | -- | -- | -- |
| 1602 | Thalang Thailand | 10 | 11.3 | 12.5 | 8.7 | 11.6 | 14.9 | -- | -- | -- |
| 1603 | Yala Thailand | 10 | 15 | 18.5 | 15.8 | 14 | 16.2 | 20.9 | 19 | 17 |
| 1604 |  Makassar Indonesia | 9.9 | 12.9 | 17.4 | 13.2 | 13.5 | 14.6 | -- | -- | -- |
