2017-2024
World's most polluted cities
The most polluted cities according to data aggregated from over 80,000 data points.
2024
World Air Quality Report
2024
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
25-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
| Rank | City | 2024 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 601 |  Eloor, India | 29.1 | 30.1 | 28.3 | 25 | 23.6 | 20.3 | 18.4 | 29.2 | 28.4 | 30.9 | 30 | 42.8 | 41.1 | -- | -- | -- | -- | -- | -- | -- |
| 602 |  Semarang, Indonesia | 29 | 24.2 | 23.7 | 22.3 | 22.7 | 39.9 | 35.6 | 36.8 | 33.2 | 29.4 | 29.3 | 29.4 | 19.5 | 28.1 | 24.3 | 28.6 | 28.5 | -- | -- | -- |
| 603 |  Busia, Kenya | 29 | 55.3 | 31.7 | 24.2 | 16.2 | 16.7 | 31.9 | 40.4 | 37.3 | 24.7 | 24.1 | 21.7 | 29.6 | 28 | -- | -- | -- | -- | -- | -- |
| 604 |  Phuc Yen, Vietnam | 29 | 25.3 | 22.7 | 37.5 | 38.8 | 26.4 | 26.3 | 18 | 23.2 | 22.4 | 27.6 | 43.4 | 38.7 | 34.3 | -- | -- | -- | -- | -- | -- |
| 605 |  Laktasi, Bosnia Herzegovina | 28.9 | 65.5 | 48.1 | 27 | 12.6 | 8.2 | 8.9 | 11.6 | 12.3 | 12.3 | 28 | 51.8 | 62.5 | 26.2 | 34.6 | 42.8 | -- | -- | -- | -- |
| 606 |  Rizhao, China | 28.9 | 53.7 | 47.4 | 36.7 | 24.2 | 23.8 | 16.3 | 17.6 | 17.2 | 13 | 27 | 29 | 40.7 | 32.2 | 29.2 | 32.7 | 37.5 | 46.2 | 41.6 | 46.8 |
| 607 |  Kičevo, North Macedonia | 28.9 | 58.9 | 57.8 | 31.4 | 15 | 10 | 12.4 | 12 | 14.8 | 10.8 | 24.2 | 52.1 | 61.3 | 23.6 | 28.9 | 25 | -- | -- | -- | -- |
| 608 | Strumica, North Macedonia | 28.9 | 78.7 | 53.9 | 21.3 | 12.2 | 10 | 12 | 15.9 | 13.4 | 12.8 | 20.6 | 49.4 | 48.2 | 31.6 | 22.2 | 18.8 | -- | -- | -- | -- |
| 609 |  Bang Phrom, Thailand | 28.9 | 58.4 | 40.5 | 33.5 | 39.3 | 19.2 | 10.2 | 9.7 | 8.1 | 13.9 | 20.7 | 35.6 | 42.5 | 33.2 | 23.3 | -- | -- | -- | -- | -- |
| 610 | Pingliang, China | 28.8 | 39.7 | 51.7 | 31.8 | 34 | 22.8 | 17.8 | 18.8 | 16.8 | 22.3 | 27 | 31.6 | 33.4 | 30.4 | 29.2 | 19.6 | 21.8 | 24.8 | 36.9 | 31.8 |
| 611 | Enshi, China | 28.8 | 49.8 | 39 | 35 | 18.5 | 19.8 | 14.1 | 11.2 | 14.3 | 22.5 | 23.8 | 29.1 | 68.1 | 23.8 | 26.4 | 25.8 | 27.5 | 31.3 | 36.1 | 44 |
| 612 | Hohhot, China | 28.8 | 61.2 | 57.2 | 28.7 | 26.9 | 23.7 | 23.8 | 19 | 13.3 | 14.7 | 22.2 | 33.4 | 22.7 | 32.4 | 23.7 | 30.8 | 39.4 | 36.4 | 35.3 | 41.2 |
| 613 | Chikkaballapur, India | 28.8 | 49.2 | 42.8 | 46.5 | 36.4 | 24.9 | 11.3 | 11.6 | 11.3 | 13.1 | 22.2 | 40.8 | 32.5 | 31 | 32 | 26.1 | 29.6 | 28.8 | -- | -- |
| 614 | Ban Waen, Thailand | 28.8 | 23.9 | 32.5 | 64.5 | 61.7 | 20.8 | 5.8 | 6.2 | 5.8 | -- | 6.9 | 4.6 | 25.1 | 31.9 | 25.4 | -- | -- | -- | -- | -- |
| 615 | Nakhon Phanom, Thailand | 28.8 | 17.5 | 43.1 | 54 | 79.3 | 30.7 | 12.2 | 9.3 | 12.7 | 10.9 | 23.1 | 27 | 32.5 | 28.7 | 20.2 | 28.3 | -- | -- | -- | -- |
| 616 | Xishan, China | 28.6 | 49.3 | 32.2 | 32 | 22.5 | 21.6 | 12.4 | 10.8 | 16.1 | 24.7 | 29.5 | 28.8 | 65.7 | 31.2 | 28.2 | 32 | -- | -- | -- | -- |
| 617 | Hangzhou, China | 28.6 | 66.4 | 39.5 | 36.2 | 24.2 | 23.1 | 15.8 | 13 | 19.9 | 18.6 | 19.3 | 21.5 | 45.4 | 31.2 | 29 | 27.4 | 29 | 37.4 | 38.1 | 43.6 |
| 618 | Nakhon Pathom, Thailand | 28.6 | 57.2 | 47 | 34.7 | 36.9 | 24.2 | 11.8 | 11 | 9.8 | 17 | 22.6 | 33.1 | 39.2 | 25.9 | 20.9 | -- | -- | -- | -- | -- |
| 619 |  Madinat Zayed, United Arab Emirates | 28.6 | 27.9 | 23.9 | 24.1 | 25 | 22.8 | 34.8 | 37.2 | 43.8 | 31.9 | 19.5 | 23.6 | 26.9 | 34.2 | 45.4 | 35.6 | -- | -- | -- | -- |
| 620 | Tongliao, China | 28.5 | 32.6 | 37.3 | 35.1 | 37 | 28.5 | 24.2 | 29.1 | 18.2 | 18.3 | 24.2 | 34.6 | 23.5 | 29.3 | 26.5 | 23.5 | 28.8 | 32.3 | 31.9 | 34.3 |
| 621 | Barmer, India | 28.4 | 52.7 | 28.8 | 18.8 | 18.3 | 24.3 | 24.5 | 17.9 | 11.4 | 14.8 | 24.1 | 43.8 | 58.3 | 26.8 | 13.1 | 15.2 | -- | -- | -- | -- |
| 622 | Cuddalore, India | 28.4 | 39.6 | 35.2 | 36.2 | 41.6 | 24.5 | 17.6 | 15.1 | 15.2 | 16.2 | 36.1 | 33.4 | 34.7 | 25.6 | 30.3 | 23.7 | -- | -- | -- | -- |
| 623 |  Lipe, Serbia | 28.4 | 44.4 | 39.3 | 28.9 | 18.8 | 13.6 | 15.5 | 15.1 | 14.9 | 17.5 | 27.9 | 54.8 | 47.6 | 21.6 | 42.1 | 30.7 | 26.4 | -- | -- | -- |
| 624 | Ko Rian, Thailand | 28.4 | 52.4 | 53.8 | 42.2 | 42.4 | 26.1 | 9.7 | 9.4 | 9.2 | 13.5 | 21.5 | 28.1 | 32.6 | 33.2 | -- | -- | -- | -- | -- | -- |
| 625 | Dazhou, China | 28.3 | 65.8 | 38.3 | 31.5 | 16.5 | 20.7 | 14.2 | 7.7 | 18.4 | 19.8 | 20.9 | 20.7 | 64 | 31.6 | 30.2 | 37.4 | 37.6 | 45.3 | 44.7 | 48.6 |
| 626 | Vellore, India | 28.3 | 52 | 40.3 | 27.4 | 22.9 | 26.1 | 16 | 13.4 | 15.6 | 21.2 | 28 | 37.8 | 44 | 45.8 | 29 | 26.2 | -- | -- | -- | -- |
| 627 | Doi Saket, Thailand | 28.3 | 29.5 | 38 | 75.3 | 75.5 | 28.6 | 7.8 | 6.6 | 5.8 | 6.9 | 15.9 | 21.1 | 29.7 | 37.5 | 21.5 | 27.7 | 17.4 | 16.2 | -- | -- |
| 628 | Nanjing, China | 28.2 | 53.9 | 38.8 | 39.2 | 30.8 | 23.5 | 17.5 | 10.8 | 17.3 | 16 | 21.6 | 23 | 46.3 | 29.4 | 27.7 | 29 | 31.1 | 40.5 | 43 | 40.5 |
| 629 | Haidongdiqu, China | 28.2 | 31 | 42.4 | 31.1 | 28.7 | 27.3 | 17.8 | 22.5 | 16.3 | 18 | 26.2 | 33.3 | 44.4 | 27.7 | 26.3 | 28 | 30.8 | 38 | 41.4 | -- |
| 630 | Shanghai, China | 28.2 | 57.6 | 38 | 37.3 | 26.7 | 21 | 20.4 | 16.8 | 18.9 | 13.9 | 20.2 | 23.3 | 44 | 28.7 | 25.4 | 27.7 | 31.5 | 35.4 | 36 | 38.9 |
| 631 | Davanagere, India | 28.2 | 39.5 | 29.4 | 37.6 | 35.1 | 23.2 | 12.3 | 10.9 | 12.1 | 12.7 | 31.3 | 47.4 | 40.1 | -- | -- | -- | -- | -- | -- | -- |
| 632 |  Muzza di Cornegliano Laudense, Italy | 28.2 | -- | 55.1 | 23.4 | 14.4 | 8.6 | 3.7 | 12.5 | 19 | 16.2 | 20.9 | 55.2 | 53.6 | -- | -- | -- | -- | -- | -- | -- |
| 633 | Vranje, Serbia | 28.1 | 53.7 | 54.6 | 29.4 | 16.4 | 11.7 | 12.4 | 13.1 | 15.5 | 15.4 | 30.4 | 52 | 41.2 | 30.8 | 32.5 | -- | -- | -- | -- | -- |
| 634 | Quoc Oai, Vietnam | 28.1 | 33.8 | 28.3 | 30.4 | 31 | 17.9 | 14.9 | 10.6 | 13.3 | 16.1 | 33.5 | 45.1 | 62.4 | 43.9 | -- | -- | -- | -- | -- | -- |
| 635 | Guankou, China | 28 | 46.4 | 35.1 | 29.6 | 23.4 | 23.8 | 13 | 12.9 | 15.4 | 22.2 | 28 | 33.5 | 56.1 | 27.7 | 26 | 27.7 | -- | -- | -- | -- |
| 636 | Leiyang, China | 28 | 45.6 | 30.2 | 28.2 | 21.6 | 20.3 | 11.2 | 8.9 | 14.5 | 21 | 31.4 | 35.8 | 57.6 | 24.8 | 25.4 | 29.8 | -- | -- | -- | -- |
| 637 | Bazhong, China | 28 | 53.7 | 43.9 | 29.5 | 22.1 | 25.8 | 17.8 | 11.3 | 18.2 | 22.9 | 21.1 | 20.5 | 49.1 | 28.9 | 26.9 | 27.3 | 26.8 | 30.3 | 30.8 | 32 |
| 638 | Pa Sak, Thailand | 28 | 25 | 34.4 | 75.6 | 82.8 | 30.5 | 7.9 | 6.5 | 5.7 | 7.6 | 14.5 | 17.5 | 25.6 | -- | -- | -- | -- | -- | -- | -- |
| 639 | Pak Khwae, Thailand | 28 | 32.9 | 50.8 | 62.6 | 65.6 | 21.9 | 5.2 | 6.8 | 4.9 | 7.6 | 8.3 | 16.9 | 27 | 32.2 | -- | -- | -- | -- | -- | -- |
| 640 | Xingbin Qu, China | 27.9 | 40.5 | 33 | 36.1 | 26.6 | 20.1 | 12 | 12.6 | 14.2 | 18.9 | 24.5 | 32.6 | 63.8 | 29.3 | 30.1 | 34 | 30.4 | 35.2 | 39.5 | 48.1 |
| 641 | Minggang, China | 27.9 | -- | 56.5 | 44.2 | 30.7 | 22.8 | 19.4 | 14.3 | 13.2 | 17.9 | 36.9 | 37.2 | 46.3 | 27.5 | -- | -- | -- | -- | -- | -- |
| 642 | Yichun, China | 27.9 | 51 | 36.1 | 28.1 | 24.6 | 22.4 | 14.9 | 12.1 | 16.8 | 24.7 | 28.4 | 24.6 | 47.2 | 29.4 | 27.1 | 30.4 | 30.8 | 35.7 | 38.7 | 51 |
| 643 | Chaoyang, China | 27.9 | 32.4 | 53.7 | 34.2 | 28.6 | 23.2 | 21.8 | 22.5 | 14.7 | 14.8 | 26.1 | 33.7 | 26.3 | 30.4 | 26.4 | 31.8 | 35.6 | 36 | 38.2 | 40.6 |
| 644 | Cagliari, Italy | 27.9 | 16.2 | 18 | 14.3 | 16.4 | 13.7 | 9.3 | 19.9 | 34.5 | 76.2 | 77.5 | 10.1 | 9.8 | 12.7 | 13 | 16.5 | -- | -- | -- | -- |
| 645 | Cacak, Serbia | 27.9 | 74.7 | 42.3 | 22.6 | 12.2 | 8.6 | 10.2 | 11 | 11.1 | 11.8 | 26.6 | 54.9 | 50.2 | 31.1 | 35.7 | 41.5 | 30.3 | -- | -- | -- |
| 646 | Nam Phong, Thailand | 27.9 | 30.1 | 54.5 | 51 | 54 | 24.6 | 9.7 | 8.1 | 10.2 | 10.1 | 25.6 | 26.1 | 32 | 30.3 | -- | -- | -- | -- | -- | -- |
| 647 | Shaoxing, China | 27.8 | 63.6 | 38.1 | 34.3 | 21.7 | 20.2 | 15.4 | 12.6 | 21.3 | 17.5 | 20.4 | 21.8 | 46.2 | 31.8 | 30 | 27.7 | 28.5 | 38.1 | 40.5 | 44.3 |
| 648 | Anantapur, India | 27.8 | 32.5 | 27.9 | 27.8 | 22.6 | 23.1 | 22.9 | 24.3 | 26 | 25.1 | 36.9 | 37.2 | 25.5 | 24 | -- | -- | -- | -- | -- | -- |
| 649 | Sravana Belgola, India | 27.8 | 42.5 | 33.2 | 45.6 | 39.1 | 26.9 | 17 | 14.5 | 14 | 14.8 | 21.5 | 32.8 | 35.7 | -- | -- | -- | -- | -- | -- | -- |
| 650 | Kalyan, India | 27.8 | 40.4 | 36.2 | 35.9 | 32.4 | 17.4 | 11.2 | 9.4 | 8.4 | 7.3 | 20.2 | 52.6 | 57.4 | 42.4 | 48.5 | 55.7 | 47.1 | -- | -- | -- |
