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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 455 |  Karur India | 30.7 | 24.2 | 26.4 | 27.5 | 22.1 | -- | -- | -- | -- |
| 456 |  Changzhi China | 30.6 | 34.7 | 36.9 | 37.9 | 39.2 | 45.5 | 47.5 | 53.2 | 62.3 |
| 457 | Kannur India | 30.6 | 30.9 | 34.4 | 36.1 | 35.1 | 29.5 | -- | -- | -- |
| 458 | Amravati India | 30.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 459 | Chhal India | 30.5 | 36.5 | -- | -- | -- | -- | -- | -- | -- |
| 460 | Salem India | 30.5 | 30.6 | 29.3 | 28.7 | 21.4 | -- | -- | -- | -- |
| 461 |  Duzce Turkey | 30.5 | 27.6 | 30.1 | 36.8 | 44.4 | 33.3 | 46 | -- | -- |
| 462 | Weifang China | 30.4 | 35.1 | 38.4 | 34.6 | 40.2 | 49.9 | 56.2 | 52.6 | 56.9 |
| 463 |  Tathali Nepal | 30.4 | 41.5 | 58.8 | -- | -- | -- | -- | -- | -- |
| 464 |  Bukhara Uzbekistan | 30.4 | 20.9 | 20.5 | -- | -- | -- | -- | -- | -- |
| 465 |  Lien Chieu Vietnam | 30.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 466 | Dingxi China | 30.2 | 31.9 | 32.3 | 29.8 | 25.8 | 25.7 | 27.4 | 40.3 | 39.2 |
| 467 | Dharwad India | 30.1 | 32.7 | 35.6 | 32.7 | -- | -- | -- | -- | -- |
| 468 | Enshi China | 30 | 28.8 | 23.8 | 26.4 | 25.8 | 27.5 | 31.3 | 36.1 | 44 |
| 469 | Jincheng China | 30 | 35.6 | 37.3 | 38 | 35.7 | 46.2 | 54.1 | 59.8 | 63.4 |
| 470 | Chongqing China | 29.9 | 31.2 | 25.4 | 26 | 31 | 31.7 | 37.1 | 37.3 | 43.9 |
| 471 | Benxi China | 29.9 | 29.8 | 30.7 | 28.1 | 28.8 | 33.8 | 35.1 | 31.6 | 38.3 |
| 472 | Davanagere India | 29.9 | 28.2 | -- | -- | -- | -- | -- | -- | -- |
| 473 | Tianshui China | 29.8 | 29.2 | 28.8 | 26.4 | 20.8 | 22.7 | 27 | 37.3 | 36.5 |
| 474 | Yadgir India | 29.8 | 32.4 | 31.4 | 29.9 | 29.2 | -- | -- | -- | -- |
| 475 | Tongliao China | 29.7 | 28.5 | 29.3 | 26.5 | 23.5 | 28.8 | 32.3 | 31.9 | 34.3 |
| 476 | Pingxiang China | 29.7 | 29.6 | 28.6 | 26.4 | 32.1 | 30.6 | 36.9 | 40.7 | 49.1 |
| 477 |  Bishkek Kyrgyzstan | 29.7 | 21.2 | 26 | 29 | 48.3 | 43.5 | 33.2 | -- | -- |
| 478 | Jiuquan China | 29.6 | 33.7 | 32.8 | 30.9 | 31 | 30.1 | 27.6 | 33.3 | 34.5 |
| 479 | Xining China | 29.6 | 30.2 | 29.5 | 29.3 | 32.2 | 33 | 33.3 | 41.7 | 38 |
| 480 | Honnali India | 29.6 | 27.7 | 28 | 26 | 15.9 | -- | -- | -- | -- |
| 481 | Baran India | 29.6 | 41.8 | 52.5 | -- | -- | -- | -- | -- | -- |
| 482 | Liaoyuan China | 29.5 | 27.1 | 31.4 | 30.8 | 32.6 | 38.9 | 37.6 | 35.6 | 48.5 |
| 483 | Panjin China | 29.5 | 29.4 | 31.4 | 28.9 | 33.1 | 34 | 38.7 | 36.1 | 39.4 |
| 484 | Semmandalam India | 29.5 | 25.7 | 27.5 | 28.1 | -- | -- | -- | -- | -- |
| 485 | Virudhunagar India | 29.5 | 24.6 | -- | -- | -- | -- | -- | -- | -- |
| 486 |  Cox's Bazar Bangladesh | 29.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 487 | Wuhai China | 29.4 | 32 | 32.2 | 30.2 | 30.4 | 33.7 | 31.3 | 40.5 | 43.7 |
| 488 |  Serrekunda Gambia | 29.4 | 38.4 | -- | -- | -- | -- | -- | -- | -- |
| 489 |  Kirkuk Iraq | 29.4 | 19.8 | -- | -- | -- | -- | -- | -- | -- |
| 490 | Laibin China | 29.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 491 | Barmer India | 29.3 | 28.4 | 26.8 | 13.1 | 15.2 | -- | -- | -- | -- |
| 492 |  Liwa United Arab Emirates | 29.3 | 34.8 | 28.6 | 47.4 | 49.9 | -- | -- | -- | -- |
| 493 |  Gracanica Bosnia Herzegovina | 29.2 | 30.3 | 59.1 | -- | -- | -- | -- | -- | -- |
| 494 | Guigang China | 29.2 | 27.2 | 28 | 27 | 29.9 | 28.5 | 33.9 | 38.7 | 41.1 |
| 495 | Lianyungang China | 29.2 | 30.9 | 32.9 | 29.1 | 32.2 | 36.1 | 42.1 | 43.4 | 45 |
| 496 | Trichur India | 29.2 | 26 | 36.2 | 29.3 | 20.8 | -- | -- | -- | -- |
| 497 |  Galle Sri Lanka | 29.2 | 32.2 | 28.9 | -- | -- | -- | -- | -- | -- |
| 498 | Al Ain United Arab Emirates | 29.2 | 31.2 | 31.1 | 50.5 | 41.2 | -- | -- | -- | -- |
| 499 | Suzhou China | 29.1 | 29.5 | 31.8 | 28.4 | 28.6 | 32.3 | 37.7 | 40.3 | 41.5 |
| 500 |  Santa Anita Mexico | 29.1 | 22.2 | 32.3 | -- | -- | -- | -- | -- | -- |
| 501 | Daqing China | 29 | 30.3 | 24.7 | 23.9 | 24.9 | 26.6 | 27.2 | 26.5 | 32.8 |
| 502 |  Cacak Serbia | 29 | 27.9 | 31.1 | 35.7 | 41.5 | 30.3 | -- | -- | -- |
| 503 |  Puente Piedra Peru | 28.9 | 26.2 | 27.4 | 32.9 | -- | -- | -- | -- | -- |
| 504 | Chenzhou China | 28.8 | 27.2 | 28.8 | 24.6 | 27.3 | 27.9 | 30.2 | 28.9 | 36.5 |
