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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1405 |  Gifu Japan | 11.1 | 9 | 9.2 | 8.9 | 9.1 | 9.4 | 11.4 | 12.2 | 11.5 |
| 1406 | Sekimachi Japan | 11.1 | 8.8 | -- | -- | -- | -- | -- | -- | -- |
| 1407 | Toki Japan | 11.1 | 10.1 | 9.1 | 8.8 | 8.5 | -- | 11.5 | -- | -- |
| 1408 | Yamagata Japan | 11.1 | 8 | 9.5 | 10.1 | 9.5 | -- | -- | -- | -- |
| 1409 | Shimotsumaotsu Japan | 11.1 | 9.9 | -- | -- | -- | -- | -- | -- | -- |
| 1410 | Yokkaichi Japan | 11.1 | 9.7 | 10.5 | 9.7 | 10.2 | 10.2 | 12.2 | 14.2 | 13.6 |
| 1411 | Ishinomaki Japan | 11.1 | 9.8 | 10.8 | 9.2 | 9.3 | -- | 11.8 | 11.6 | 10.6 |
| 1412 | Sasagajin Japan | 11.1 | 9.8 | -- | -- | -- | -- | -- | -- | -- |
| 1413 | Hyuga Japan | 11.1 | 9.8 | 9.8 | 10.3 | 9.4 | 13.2 | 11.4 | 11.6 | 13.5 |
| 1414 | Gose Japan | 11.1 | 9.3 | 9.9 | 9.3 | 9.4 | 10.7 | 11.4 | 12.4 | 12.5 |
| 1415 | Takahashi Japan | 11.1 | 8.9 | 10.4 | 9.4 | 9.4 | 10.3 | 11.8 | -- | -- |
| 1416 | Kasugadekita Japan | 11.1 | 9.5 | 10.7 | -- | -- | -- | -- | -- | -- |
| 1417 |  Ban Phe Thailand | 11.1 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1418 |  Phan Thiet Vietnam | 11.1 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1419 | Koya Japan | 11 | 6.9 | 9.1 | -- | -- | -- | -- | -- | -- |
| 1420 | Bunkyocho Japan | 11 | 9.5 | -- | -- | -- | -- | -- | -- | -- |
| 1421 | Satte Japan | 11 | 10 | 10.9 | 10.5 | 10.3 | 10.8 | 15.5 | 15.6 | 15.9 |
| 1422 | Higashiomi Japan | 11 | 8.6 | 10.1 | 9.6 | 9.3 | 9.8 | 13 | 13.5 | 13 |
| 1423 | Muyacho Kokuwajima Japan | 11 | 9 | -- | -- | -- | -- | -- | -- | -- |
| 1424 | Nishinoji Japan | 11 | 8.5 | -- | -- | -- | -- | -- | -- | -- |
| 1425 | Takanawa Japan | 11 | 10.5 | 14.1 | -- | -- | -- | -- | -- | -- |
| 1426 | Waki Japan | 11 | 9 | 10 | 9.5 | 9.8 | 10.2 | 11.8 | 11.9 | 12.7 |
| 1427 |  Gurye South Korea | 11 | 7 | 11.9 | -- | -- | -- | -- | -- | -- |
| 1428 | Ban Ao Nang Thailand | 11 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1429 |  Manokwari Indonesia | 10.9 | 14.8 | 12.4 | 3 | 3.1 | -- | -- | -- | -- |
| 1430 | Sanda Japan | 10.9 | 8.7 | 9.5 | 9.5 | 8.4 | 9 | 9.4 | 10.4 | 11 |
| 1431 | Shitte Japan | 10.9 | 9.3 | 7.8 | -- | -- | -- | -- | -- | -- |
| 1432 | Tsuchiura Japan | 10.9 | 9.7 | 10.1 | 9.6 | 9 | 9 | 12.7 | 12.7 | 12 |
| 1433 | Hitoyoshi Japan | 10.9 | 9.5 | 10.5 | 11.2 | 10.5 | -- | -- | -- | -- |
| 1434 | Kudo Japan | 10.9 | 9.2 | -- | -- | -- | -- | -- | -- | -- |
| 1435 | Tenri Japan | 10.9 | 8.8 | 10.2 | 10 | 9.4 | 10.5 | 14.1 | 16.6 | 14.8 |
| 1436 | Daito Japan | 10.9 | 8.5 | 9.7 | 9.3 | 7.9 | 7.7 | 13.4 | 14.2 | 13.3 |
| 1437 | Tanigawa Japan | 10.9 | 8.9 | 10 | -- | -- | -- | -- | -- | -- |
| 1438 | Misato Japan | 10.9 | 11.2 | 11.9 | 11.4 | 10.9 | 11.9 | 12.5 | 14.2 | -- |
| 1439 | Yakyūcho Japan | 10.9 | 10.2 | -- | -- | -- | -- | -- | -- | -- |
| 1440 | Phuket Thailand | 10.9 | 17.2 | 16.5 | 11.9 | 17.4 | 13.8 | 11.4 | -- | -- |
| 1441 | Phu Quoc City Vietnam | 10.9 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1442 | Bengkayang Indonesia | 10.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1443 | Hama Japan | 10.8 | 9.9 | -- | -- | -- | -- | -- | -- | -- |
| 1444 | Matsuyama Japan | 10.8 | 9.8 | 10.8 | 11 | 11.6 | 11.8 | 13.7 | 14.3 | 14.5 |
| 1445 | Kikuchi Japan | 10.8 | 9.8 | 12.2 | 11.4 | 11.3 | 12.6 | 13.1 | 13.8 | 15.1 |
| 1446 | Miyazono Japan | 10.8 | 9.7 | -- | -- | -- | -- | -- | -- | -- |
| 1447 | Iga Japan | 10.8 | 8.8 | 10.2 | 9.4 | 8.6 | 9.9 | 12 | 13.3 | 12.6 |
| 1448 | Matsusaka Japan | 10.8 | 8.7 | 9.6 | 8.8 | 9 | 9.4 | 10.5 | 10.4 | 13.1 |
| 1449 | Tawaramoto Japan | 10.8 | 8.6 | 10 | 9.3 | 8.6 | 9.5 | 10.1 | -- | -- |
| 1450 | Kishiwada Japan | 10.8 | 9.1 | 8.7 | 8.4 | 7.6 | 7.6 | 10.8 | 11.6 | 11.1 |
| 1451 | Sakai Japan | 10.8 | 9.2 | 11.2 | 10.3 | 9 | 9.8 | 12.5 | 13 | 12.8 |
| 1452 | Shiroishi Japan | 10.8 | 10.2 | 11.7 | 13.1 | 11.9 | 13.8 | 15 | 15.8 | 16.2 |
| 1453 | Hasuda Japan | 10.8 | 10.7 | 12.2 | 10.7 | 10.6 | 11.1 | 12.8 | 14.4 | -- |
| 1454 | Khao Yai Thailand | 10.8 | 16 | 23.1 | 18 | -- | -- | -- | -- | -- |
