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2017-2023
World's most polluted cities
Most polluted city ranking based on annual average PM2.5 concentration (μg/m³)
2023
World Air Quality Report
PM2.5 legend
0-5
Meets WHO guideline
5.1-10
Exceeds by 1 to 2 times
10.1-15
Exceeds by 2 to 3 times
15.1-25
Exceeds by 3 to 5 times
25.1-35
Exceeds by 5 to 7 times
35.1-50
Exceeds by 7 to 10 times
>50.1
Exceeds by over 10 times
Rank | City | 2023 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 651 |  Indralaya, Indonesia | 29 | 12.8 | 13 | 12.4 | 12.3 | 18.2 | 22.2 | 18.5 | 28.4 | 79.9 | 156 | -- | -- | 6.8 | 4.2 | -- | -- | -- | -- |
| 652 |  Nong Bua Lamphu, Thailand | 29 | 36.5 | 51.8 | 58.5 | 47.2 | 20.8 | 9 | 7.3 | -- | 6.3 | 14.1 | 24.1 | 27.1 | -- | -- | -- | -- | -- | -- |
| 653 |  Kahramanmaras, Turkey | 29 | 93.2 | 38.8 | 25.5 | 18 | 15.1 | 19.3 | 16.1 | 26.6 | 25 | 20.7 | 21.8 | 23.9 | 32.8 | 36.4 | -- | -- | -- | -- |
| 654 |  Qingyang, China | 28.9 | 50.7 | 50.7 | 37.4 | 36.1 | 19.6 | 15.8 | 15.6 | 15 | 18.9 | 22.9 | 28.1 | 39.4 | 31.4 | 26.8 | 29.1 | 31 | 33.1 | 35 |
| 655 | Changzhou Qu, China | 28.9 | 38 | 36.7 | 41.9 | 28.8 | 25.3 | 20.4 | 20.9 | 19.5 | 20 | 25.6 | 34.5 | 34.7 | 29.1 | 30.1 | 30.5 | 33.4 | 40.9 | 45.4 |
| 656 | Zhangjiajie, China | 28.9 | 67.7 | 47.8 | 28.4 | 25.3 | 21.3 | 14.8 | 14.1 | 19.7 | 17.5 | 20.4 | 27.8 | 43.5 | 25.8 | 24.4 | 22.6 | 28.7 | 29.6 | 38.7 |
| 657 | Songyuan, China | 28.9 | 44.3 | 39 | 40.6 | 41.7 | 24.7 | 16 | 14.7 | 8.3 | 12.8 | 24.9 | 38 | 42.9 | 24.5 | 22.5 | 26.1 | 29.7 | 27.9 | 35.6 |
| 658 | Bazhong, China | 28.9 | 70.3 | 39.5 | 25.6 | 24.6 | 23.1 | 17.3 | 15 | 13.9 | 14.2 | 21.6 | 28 | 51.3 | 26.9 | 27.3 | 26.8 | 30.3 | 30.8 | 32 |
| 659 |  Pakse, Laos | 28.9 | 22.8 | 30.1 | 77.9 | 50.7 | 29.6 | 14.1 | 12.7 | 13.6 | 12.2 | 11.8 | -- | 14 | 18.9 | -- | -- | -- | -- | -- |
| 660 |  Galle, Sri Lanka | 28.9 | -- | -- | 37.2 | 41.1 | 27 | 26.7 | 28.1 | 27.5 | 26.4 | 30.9 | 24.1 | 27.4 | -- | -- | -- | -- | -- | -- |
| 661 |  Sokolac, Bosnia Herzegovina | 28.8 | 42.9 | 76.8 | 33.6 | 26.5 | 17.5 | 17.1 | 16.8 | 18.6 | 18 | 18.5 | 19.6 | 47.3 | 37.2 | 31.9 | -- | -- | -- | -- |
| 662 | Tianshui, China | 28.8 | 49.5 | 45 | 31.8 | 35.3 | 20.3 | 16.6 | 13.6 | 14.4 | 17.1 | 20.9 | 31.9 | 51.4 | 26.4 | 20.8 | 22.7 | 27 | 37.3 | 36.5 |
| 663 | Honggang, China | 28.8 | 47.4 | 41.3 | 36.3 | 35.1 | 22.6 | 15.4 | 15.9 | 14 | 17.9 | 24.2 | 28.5 | 46.1 | -- | -- | -- | -- | -- | -- |
| 664 | Chenzhou, China | 28.8 | 55.7 | 42.4 | 35.8 | 20.7 | 24.1 | 16.7 | 13.8 | 17.2 | 22.7 | 31.1 | 29.5 | 36.2 | 24.6 | 27.3 | 27.9 | 30.2 | 28.9 | 36.5 |
| 665 | Yancheng, China | 28.8 | 46.1 | 28.8 | 39.3 | 31.2 | 22.5 | 16.7 | 14.5 | 14.4 | 15.7 | 25.2 | 36.5 | 52.5 | 26.4 | 28.9 | 32.5 | 40.5 | 43.2 | 43.8 |
| 666 | Jinsha, China | 28.7 | 46.4 | 29 | 38.3 | 34.4 | 21.5 | 17.5 | 12.8 | 11.5 | 11.9 | 25 | 40.5 | 53.2 | 26.8 | 25.6 | -- | -- | -- | -- |
| 667 | Shanghai, China | 28.7 | 37.1 | 28 | 31.3 | 32.5 | 28.3 | 26.8 | 17.8 | 16.1 | 19.3 | 23.9 | 33.4 | 48.5 | 25.4 | 27.7 | 31.5 | 35.4 | 36 | 38.9 |
| 668 | Nakhon Phanom, Thailand | 28.7 | 39.7 | 49.7 | 80.5 | 55.9 | -- | 12.6 | 10 | 15.6 | 10 | 16 | 18.6 | 24.2 | 20.2 | 28.3 | -- | -- | -- | -- |
| 669 |  Haiphong, Vietnam | 28.7 | -- | -- | -- | 47.3 | 26.4 | 16.7 | 15.6 | 17 | 20.6 | 28.3 | 43.2 | 45.6 | -- | -- | -- | -- | -- | -- |
| 670 | Sarajevo, Bosnia Herzegovina | 28.6 | 59.3 | 43.8 | 24.8 | 15.3 | 11.2 | 13.7 | 15.2 | 16.4 | 13.9 | 14.5 | 37.2 | 78.7 | 32.4 | 29.7 | 42.5 | 34.1 | 38.4 | -- |
| 671 | Pingxiang, China | 28.6 | 54.8 | 38.3 | 31.6 | 22.8 | 22.9 | 16.5 | 12.9 | 18.2 | 19.8 | 29.8 | 29.8 | 46.7 | 26.4 | 32.1 | 30.6 | 36.9 | 40.7 | 49.1 |
| 672 | Yulin, China | 28.6 | 39.8 | 39.5 | 42.1 | 47 | 26.6 | 16.1 | 15.1 | 17.3 | 18.7 | 21 | 21.7 | 40.4 | 26.7 | 31.1 | 32.7 | 33 | 35.2 | 34.1 |
| 673 |  Bengaluru, India | 28.6 | 42.9 | 40.9 | 36.2 | 35 | 23.6 | 16.1 | 12.4 | 19.3 | 14.6 | 35.8 | 31.4 | 35.8 | 31.5 | 29 | 27.5 | 32.6 | 34.5 | 32.1 |
| 674 |  Benin City, Nigeria | 28.6 | 48 | 56.2 | 27 | 21.9 | 18.5 | 19.3 | 19.1 | 18.3 | 11.9 | 13.6 | 15.5 | 41.4 | 38.1 | 29.7 | -- | -- | -- | -- |
| 675 | Arnavutkoey, Turkey | 28.6 | 21.8 | 21.1 | 34.6 | 14.5 | 12.8 | 9.8 | 11.6 | 12 | 155.4 | -- | -- | -- | 19.3 | 17.4 | -- | -- | -- | -- |
| 676 |  Tashkent, Uzbekistan | 28.6 | 82.5 | 25.9 | 19.7 | 17.6 | 14.6 | 20.2 | 18.4 | 15.9 | 22.3 | 33.9 | 31.2 | 38.5 | 33.5 | 42.8 | 29.9 | 41.2 | 34.3 | -- |
| 677 | Ilijas, Bosnia Herzegovina | 28.5 | 53.4 | 43.4 | 27.4 | 19.9 | 16.5 | 16.7 | 17.2 | 18.1 | 16 | 14.6 | 35.4 | 66.4 | 29.9 | 33.7 | -- | -- | -- | -- |
| 678 | Shangmei, China | 28.5 | 86.9 | 44.2 | 16.4 | 32.5 | 25.1 | 19.5 | 15.6 | 23.5 | 23.1 | 30 | 39 | 44.9 | 33.2 | 42.9 | -- | -- | -- | -- |
| 679 | Datong, China | 28.5 | 38.7 | 37.1 | 37.2 | 36.1 | 26.9 | 18 | 16.5 | 15.5 | 18.1 | 25.4 | 24.6 | 48.2 | 25.3 | 30.6 | 31.2 | 32.3 | 36.6 | 38.4 |
| 680 | Honghe, China | 28.5 | 33.3 | 40.4 | 46.9 | 60.3 | 25.9 | 19.1 | 15.4 | 15.1 | 17.9 | 19.2 | 23.6 | 28 | 23.1 | 27 | 25.7 | 26.2 | 25 | 33.2 |
| 681 | Ooty, India | 28.5 | 32.8 | 37.5 | 38.6 | 38.5 | 44 | 25.2 | 15.8 | 21.8 | 13.4 | 33.3 | 17.1 | 20.1 | 23.3 | 20.8 | -- | -- | -- | -- |
| 682 |  Gornji Milanovac, Serbia | 28.5 | 57.8 | 59.8 | 32 | 25.3 | 12.8 | 10.9 | 10.9 | 11.3 | 11.7 | 16.1 | 22.8 | 60.9 | 39.5 | 32.5 | -- | -- | -- | -- |
| 683 | Khlong Phra Udom, Thailand | 28.5 | 42.1 | 44.4 | 48.6 | 47.7 | 23.1 | 12.2 | 10.4 | 13.4 | 11.2 | 24.6 | 30.2 | 34.5 | -- | -- | -- | -- | -- | -- |
| 684 | Shiyan, China | 28.4 | 47.8 | 49.8 | 31.9 | 33.2 | 19.8 | 16.8 | 15 | 17.1 | 19.3 | 20.6 | 29.9 | 40.8 | 30.1 | 28.3 | 30.5 | 36.5 | 40.2 | 42 |
| 685 | Raipur, India | 28.4 | 43.2 | 37.9 | 30.6 | 21.6 | 24.9 | 23.7 | 11.7 | 13 | 15.5 | 34.6 | 40.5 | 46.2 | -- | -- | -- | -- | -- | -- |
| 686 | Kamphaeng Phet, Thailand | 28.4 | 35.6 | 57.8 | 69.8 | 67.6 | 23.9 | 9 | 7.2 | 11.6 | 8.2 | 9.4 | 18 | 25.6 | 19.6 | 22 | 31.7 | 23.6 | -- | -- |
| 687 | Mae Mo, Thailand | 28.4 | 25.9 | 62.1 | 68.2 | 77.7 | 24.7 | 10.4 | 7.7 | 10.9 | 8.3 | 11.2 | 16.6 | 22.6 | 19.7 | 26.3 | 25.6 | 30.2 | -- | -- |
| 688 | Pakkret, Thailand | 28.4 | 33.6 | 51.6 | 48.3 | 36.2 | -- | 11.6 | 11.2 | 14.5 | 11.3 | 21.2 | 31.7 | 41.7 | 17.6 | -- | -- | -- | -- | -- |
| 689 | Dalianwan, China | 28.3 | 32.4 | 42.6 | 39.1 | 34.3 | 23.8 | 18.3 | 18 | 17.7 | 20.2 | 24.6 | 29 | 39.6 | -- | -- | -- | -- | -- | -- |
| 690 |  Toluca de Lerdo, Mexico | 28.3 | 36 | 31.6 | 30.3 | 32.2 | 34.5 | 28.8 | 20.9 | 21.8 | 23.5 | 21.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 691 | Icmeler, Turkey | 28.3 | 25.3 | 16.7 | 17.4 | 18.5 | 17.9 | 18.8 | 82.7 | 31.6 | 19.4 | 21.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 692 | Wanxian, China | 28.2 | 74.1 | 47.5 | 28.3 | 24.6 | 21.4 | 15.5 | 11.4 | 13.1 | 14.8 | 19.3 | 30.8 | 51.3 | 28.7 | 29.5 | 27.8 | 27.9 | -- | -- |
| 693 | Jixi, China | 28.2 | 55.6 | 42.7 | 33.2 | 45.2 | 21.8 | 13.5 | 11.8 | 9.1 | 14.5 | 23.9 | 29.2 | 37.7 | 22.5 | 26.3 | 23.4 | 27.1 | 29.2 | 36.2 |
| 694 |  Yangon, Myanmar | 28.2 | 52 | 47.8 | 56.8 | 47.4 | 24.4 | 11.7 | 6.1 | 13.8 | 8.3 | 15.1 | 23.3 | 32.7 | 24.3 | 26.4 | 29.4 | 31 | -- | -- |
| 695 |  Dakar, Senegal | 28.2 | 33.7 | 45 | 30 | 30.8 | 26.4 | 14.5 | 15.8 | 8.6 | 8.8 | 22.6 | 34.1 | 49.3 | 20.4 | 14.6 | -- | -- | -- | -- |
| 696 | Liuzhou, China | 28.1 | 46 | 35.3 | 42.5 | 27.6 | 23.9 | 15.3 | 16.9 | 13.8 | 16.8 | 23.6 | 33.3 | 39.9 | 29.3 | 31.3 | 28.9 | 34.4 | 39.4 | 43.6 |
| 697 | Fenyi, China | 28.1 | 45.6 | 38.7 | 34.4 | 24.1 | 22.7 | 18.9 | 12.3 | 20.1 | 20.8 | 31.5 | 32.1 | 33.1 | 26.3 | 27.3 | -- | -- | -- | -- |
| 698 | Panshan, China | 28.1 | 34 | 39.6 | 47.9 | 38.4 | 22.5 | 16.6 | 14.6 | 13.5 | 14.2 | 23.7 | 27.9 | 38.9 | -- | -- | -- | -- | -- | -- |
| 699 | Kharsia, India | 28.1 | 42.4 | 29.3 | 42.4 | 31.1 | 23.2 | 18.4 | 11.5 | 19.8 | 15.4 | 25 | 40.9 | 38.8 | -- | -- | -- | -- | -- | -- |
| 700 | Semarang, Indonesia | 28.1 | 20.8 | 18.6 | 23.4 | 24.1 | 31.6 | 24.7 | 20 | 37.2 | 31.4 | 38.2 | 35.4 | 30.4 | 24.3 | 28.6 | 28.5 | -- | -- | -- |
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