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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 351 |  Langfang, China | 37.9 | 47 | 58.6 | 56.2 | 36.6 | 29.5 | 19.2 | 17.7 | 17.3 | 31.2 | 44.5 | 40.4 | 54.6 | 34.1 | 40.1 | 43.3 | 47.1 | 55.8 | 78.5 |
| 352 |  Bihar Sharif, India | 37.9 | 161.6 | 49.5 | 36.6 | 32.1 | 28.5 | 20.3 | 10.8 | 13 | 15.8 | 22.5 | 54.8 | 44.7 | 68.6 | -- | -- | -- | -- | -- |
| 353 | Taixing, China | 37.8 | 53.2 | 42.3 | 45.7 | 39.5 | 32.5 | 27.3 | 16 | 21.6 | 26 | 40.1 | 43.4 | 62.8 | 39.8 | 36.7 | -- | -- | -- | -- |
| 354 | Hanting, China | 37.7 | 59.5 | 50.3 | 48.7 | 37.3 | 27.9 | 19.7 | 19.5 | 19.8 | 29 | 36.3 | 39.5 | 63.9 | 32.7 | 34 | -- | -- | -- | -- |
| 355 | Rajsamand, India | 37.7 | -- | -- | 30.7 | 24.3 | 21.5 | 25.9 | 40.7 | 39.7 | 19.3 | 24.7 | 71.5 | 75 | -- | -- | -- | -- | -- | -- |
| 356 |  Nong Hoi, Thailand | 37.7 | 45.4 | 72.6 | 108.9 | 104.2 | 32.1 | 11.8 | 7.8 | 13 | 9 | 8.8 | 15.8 | 22.6 | -- | -- | -- | -- | -- | -- |
| 357 | Tangjiazhuang, China | 37.6 | 45 | 50.2 | 57.1 | 32.1 | 32.2 | 28.1 | 21.3 | 24.7 | 33.9 | 42.3 | 37.6 | 46.6 | 30.8 | 39.9 | -- | -- | -- | -- |
| 358 | Xiangtan, China | 37.6 | 79.5 | 60.3 | 47.5 | 25.5 | 28.1 | 18.8 | 15.2 | 20.9 | 19.1 | 37.3 | 41.5 | 58.6 | 36.9 | 42.3 | 38.2 | 46.8 | 46.6 | 50.3 |
| 359 | Zhuzhou, China | 37.6 | 78.1 | 57.1 | 45.9 | 26.4 | 28.7 | 19 | 14.6 | 22 | 20.3 | 38.6 | 41.4 | 59.5 | 34.2 | 39 | 36.7 | 46.3 | 42.3 | 50.2 |
| 360 | Huai'an, China | 37.6 | 60.4 | 43 | 50.8 | 39.4 | 31.7 | 22.8 | 14 | 17.1 | 21.6 | 40.6 | 47.1 | 59.3 | 35.3 | 33.6 | -- | -- | -- | -- |
| 361 |  Depok, Indonesia | 37.6 | 20.1 | 13.3 | 23.2 | 22.3 | 32.8 | 22.7 | 25.4 | 89.8 | 60.7 | 63.2 | 49.3 | 51.8 | 37.7 | 15.8 | -- | -- | -- | -- |
| 362 |  Doha, Qatar | 37.6 | 43 | 32 | 30.7 | 27.3 | 27.1 | 36.4 | 36.4 | 49.1 | 42.8 | 42.5 | 35.8 | 47 | 41.8 | 38.2 | 44.3 | -- | -- | -- |
| 363 | Shizuishan, China | 37.5 | 58.2 | 46.5 | 48.9 | 55.2 | 33.7 | 19.3 | 19.9 | 21.2 | 23.7 | 29.7 | 34.6 | 57.7 | 33.6 | 35.7 | 36.1 | 34.5 | 40.4 | 45.5 |
| 364 | Tongchuan, China | 37.5 | 64 | 68.3 | 44.8 | 47.6 | 21.1 | 18.6 | 18.9 | 18.4 | 22.1 | 28.3 | 41 | 59.2 | 36.3 | 34 | 38.6 | 44.6 | 46.3 | 50.5 |
| 365 | Doi Saket, Thailand | 37.5 | 44.9 | 64 | 103.7 | 107.9 | 31 | 10.5 | 6.2 | 11.4 | 7.9 | 10.1 | 22.4 | 32.1 | 21.5 | 27.7 | 17.4 | 16.2 | -- | -- |
| 366 | Nam Phrae, Thailand | 37.5 | 27.9 | 48.9 | 106.1 | 132.9 | 28 | 8.6 | 4.6 | 8.7 | 5.5 | 10.6 | 18.1 | -- | 23 | -- | -- | -- | -- | -- |
| 367 |  Karaganda, Kazakhstan | 37.4 | 77.8 | 72.2 | 55.3 | 28.8 | 35.3 | 17.8 | 18.6 | 16 | 28.6 | 25.7 | 37.6 | 35.2 | -- | -- | -- | -- | -- | -- |
| 368 |  Ho, Vietnam | 37.4 | 31.4 | 38.2 | 29.2 | 28.7 | 30.1 | 33 | 31.8 | 39 | 43.9 | 46.1 | 55 | 41.8 | 32.4 | 38 | -- | -- | -- | -- |
| 369 | Jijiang, China | 37.3 | 73.9 | 53.8 | 39 | 30.1 | 33.7 | 22.9 | 17.3 | 17.7 | 20.6 | 25.9 | 46.5 | 66 | 35.3 | 34.6 | 34.5 | 34.4 | -- | -- |
| 370 | Jincheng, China | 37.3 | 57.9 | 71.7 | 45.8 | 38.3 | 28 | 21.5 | 17.4 | 23.9 | 26.1 | 41.8 | 33.9 | 42.1 | 38 | 35.7 | 46.2 | 54.1 | 59.8 | 63.4 |
| 371 | Borivli, India | 37.3 | 72.8 | 63 | 53.4 | 31.4 | 20.2 | 15 | 12.2 | 12 | 16.4 | 40.6 | 51.5 | 60.4 | 44.7 | 38.1 | -- | -- | -- | -- |
| 372 | Pa Sak, Thailand | 37.3 | 38.5 | 57.4 | 98.8 | 122.1 | 30.9 | 9.8 | 6 | 10.5 | 7 | 8.9 | 18.2 | 26.1 | 22.7 | -- | -- | -- | -- | -- |
| 373 | Chiang Khong, Thailand | 37.3 | 28.7 | 68.9 | 101.7 | 195.1 | -- | -- | 9.9 | 8.1 | 9.6 | 9.1 | 8.3 | 9.9 | -- | -- | -- | -- | -- | -- |
| 374 |  Hendek, Turkey | 37.3 | 51.3 | 41.4 | 30.1 | 26 | 35.7 | 36.8 | 34.6 | 40.1 | 35.9 | 41.8 | 29.7 | 43.8 | 34.4 | -- | -- | -- | -- | -- |
| 375 | Changsha, China | 37.2 | 82.6 | 58.8 | 45.8 | 27.4 | 27.2 | 18.1 | 14 | 21.4 | 18.4 | 34 | 40 | 58.5 | 37.1 | 43 | 41 | 46.8 | 45.8 | 51.4 |
| 376 | Dawukou, China | 37.2 | 66.3 | 47.7 | 44.5 | 43.8 | 29.5 | 16.1 | 14.5 | 16.9 | 26.1 | 30 | 42.4 | 68.6 | 33.5 | 36.7 | -- | -- | -- | -- |
| 377 | Dongying, China | 37.2 | 58.9 | 53.9 | 52.4 | 36 | 28.1 | 20.2 | 20.4 | 18.6 | 24.4 | 36.4 | 35.6 | 59.3 | 33.1 | 38.4 | 45.7 | 48.6 | 47.4 | 57.9 |
| 378 | Shengli, China | 37.2 | 58.6 | 54.3 | 50.7 | 36.5 | 28.5 | 20.1 | 20.2 | 20.2 | 26.6 | 35.2 | 35.7 | 58 | 33.8 | 34.9 | -- | -- | -- | -- |
| 379 | Ash Shihaniyah, Qatar | 37.2 | 29.4 | 25.4 | 24.7 | 30.2 | 36.5 | 40.8 | 46.8 | 57.8 | 45.4 | 40.1 | 33.5 | -- | 48.8 | -- | -- | -- | -- | -- |
| 380 | Mianyang, China | 37.1 | 78.5 | 49.6 | 33 | 31.2 | 27.9 | 23.4 | 22.5 | 20.3 | 21.4 | 29 | 41.9 | 64.4 | 34.5 | 35.8 | 34.2 | 37.8 | 45.3 | 48.5 |
| 381 | Jhansi, India | 37.1 | 39.6 | 19.5 | 15.4 | 20.1 | 41.9 | 35.3 | 34.6 | 33.4 | 30.2 | 53.1 | 73.7 | 45.9 | 47.2 | -- | -- | -- | -- | -- |
| 382 | Suihua, China | 37 | 77.9 | 64.6 | 47.9 | 56.4 | 20.8 | 12.2 | 11.7 | 7.9 | 11 | 28.7 | 48.9 | 56.8 | 36.4 | 32.7 | 39.1 | 37.1 | 35.4 | 35.4 |
| 383 | Nan, Thailand | 37 | 36.6 | 74.6 | 100 | 96.8 | 34.2 | 13.2 | 10.6 | 17.1 | 9.5 | 9 | 14.5 | 19.7 | 30.4 | 39.5 | 32.5 | -- | -- | -- |
| 384 | Huangshi, China | 36.9 | 71.9 | 58.5 | 44.8 | 29.6 | 26.2 | 19.4 | 12.5 | 18.8 | 17.2 | 43.5 | 40.7 | 56.4 | 32.1 | 33 | 35 | 40.6 | 41.7 | 55.2 |
| 385 | Changzhi, China | 36.9 | 53.8 | 69.7 | 46.7 | 37.6 | 26.8 | 22.2 | 19.4 | 23.6 | 28.2 | 37.7 | 30.7 | 46.3 | 37.9 | 39.2 | 45.5 | 47.5 | 53.2 | 62.3 |
| 386 | Nashik, India | 36.9 | 56 | 39.6 | 43.5 | 28.5 | 25.6 | 21.6 | 12.3 | 17.2 | 20.3 | 54.9 | 64.6 | 58.8 | 34.3 | 40.7 | 32.8 | 39.3 | 39.8 | 47.2 |
| 387 | Mae Rim, Thailand | 36.9 | -- | -- | 119.7 | 140.7 | 32 | 11.1 | 6.5 | 11.7 | 6.6 | 8.8 | 16.1 | 23.7 | -- | -- | -- | -- | -- | -- |
| 388 | Tha Sala, Thailand | 36.9 | 36.4 | 50.2 | 83.6 | 90.9 | 23.3 | 8.4 | 5.8 | 8.7 | 6.4 | 9.6 | 18.9 | 26.2 | -- | -- | -- | -- | -- | -- |
| 389 | Solapur, India | 36.8 | 49.6 | 35.7 | 40.3 | 28.9 | 35.3 | 37.5 | 17.9 | 24.2 | 21.1 | 52.6 | 56.7 | 42.3 | 39.3 | 32.6 | 30.6 | 36.9 | 38.9 | 37.7 |
| 390 |  Kigali, Rwanda | 36.8 | 47.4 | 58.6 | 34.9 | 24.1 | 29.4 | 44 | 45.7 | 42.8 | 35.8 | 24.2 | 24.6 | 31.8 | 44 | 43.1 | -- | -- | -- | -- |
| 391 | Xinpu, China | 36.6 | 61.2 | 42.1 | 49.1 | 35.7 | 26.8 | 19.3 | 14.9 | 14.3 | 22.1 | 37.3 | 48 | 64.9 | 32.5 | 36.2 | 38.8 | 35.5 | -- | -- |
| 392 | Dongling, China | 36.6 | 49.5 | 52.4 | 52.4 | 48.8 | 27 | 22.1 | 20.3 | 16.3 | 20.4 | 40.3 | 38.5 | 50.6 | -- | -- | -- | -- | -- | -- |
| 393 | Rohta, India | 36.5 | 52.2 | 17.2 | 14.3 | 14.7 | 19.3 | 35.9 | 27.7 | 38.1 | 41.6 | 50.2 | 66.8 | 47 | -- | -- | -- | -- | -- | -- |
| 394 | Lianshan, China | 36.3 | 51.2 | 52 | 62.3 | 35.5 | 28.9 | 24.2 | 21.7 | 20.3 | 22.1 | 32.9 | 35 | 48.2 | -- | -- | -- | -- | -- | -- |
| 395 | Wuzhong, China | 36.3 | 61.1 | 49 | 46.6 | 68.4 | 29.7 | 19.4 | 19.4 | 17.4 | 22.1 | 26.7 | 30.7 | 46 | 34.6 | 36.5 | 33.9 | 31.1 | 37.9 | 42.9 |
| 396 | Nanchong, China | 36.3 | 77.3 | 55.5 | 32.5 | 31 | 28.7 | 21.2 | 20.8 | 18 | 22.1 | 27.7 | 39.6 | 59.3 | 35.2 | 37.1 | 36.6 | 42.3 | 45.3 | 45.2 |
| 397 | Tarkhad, India | 36.3 | 67.8 | 57.5 | 46.7 | 31.7 | 19.4 | 9.8 | 7.9 | 10 | 15.1 | 54.7 | 56.3 | 55.8 | 38.7 | 37.6 | 41.1 | -- | -- | -- |
| 398 |  Tuzla, Bosnia Herzegovina | 36.2 | 66.4 | 69 | 43.5 | 31.9 | 19.6 | 19.6 | 17.4 | 20.4 | 18.4 | 21 | 42.7 | 72.9 | 49.4 | 33.2 | 32.1 | 35.3 | 43.1 | -- |
| 399 | Trichur, India | 36.2 | 52.6 | 57.8 | 62.5 | 32.6 | 20.1 | 25.6 | 26.7 | 29.1 | 30.5 | 30.5 | 30.6 | 30.5 | 29.3 | 20.8 | -- | -- | -- | -- |
| 400 | Zenica, Bosnia Herzegovina | 36.1 | 57.8 | 55.4 | 32.7 | 26.7 | 22.4 | 19.3 | 21.3 | 22.8 | 20.4 | 23.8 | 42.8 | 83.3 | 48.6 | 76.8 | 27.7 | 34.8 | -- | -- |
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