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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 301 |  Prayagraj, India | 40.1 | 61.2 | 34.3 | 28.6 | 21 | 21.3 | 18.4 | 25.4 | 34.9 | 34.4 | 62.4 | 88.8 | 50.2 | 43.8 | -- | -- | -- | -- | -- |
| 302 |  Pljevlja, Montenegro | 40.1 | 89.7 | 86.4 | 40.8 | 28.4 | 14.8 | 11.5 | 11.9 | 11.6 | 10.6 | 21.2 | 52.3 | 93.1 | 34.5 | -- | -- | -- | -- | -- |
| 303 |  Sudal, Nepal | 40.1 | 67.3 | -- | 67.2 | 78.9 | 41.4 | 28.7 | 19.3 | 20.4 | 22.6 | 30.2 | 40.8 | 51.6 | -- | -- | -- | -- | -- | -- |
| 304 |  Pong Yang Khok, Thailand | 40.1 | 44.5 | 88 | 99.2 | 104.9 | 35.4 | 9.8 | 5.4 | 11.5 | 7 | 10.7 | 20.2 | 29.4 | 26.4 | -- | -- | -- | -- | -- |
| 305 |  Hechuan, China | 40 | 82.5 | 69.7 | 38.1 | 32.4 | 32.5 | 24.8 | 19.8 | 21.8 | 28.3 | 28.9 | 50.7 | 70 | 33.8 | 38.8 | 34.1 | 32.5 | -- | -- |
| 306 | Wuwei, China | 39.9 | 58.6 | 42.5 | 62.7 | 51.2 | 44.6 | 35.1 | 27.7 | 23.8 | 23.6 | 24.5 | 43.1 | 41.1 | 37.9 | 40.2 | 37.6 | 33.1 | 42.2 | 43.8 |
| 307 | Yiyang, China | 39.9 | 97.7 | 66.8 | 41.1 | 27 | 25.4 | 18.4 | 13 | 21 | 23.9 | 39.3 | 42.6 | 63.4 | 37.1 | 34.4 | 40 | 49.8 | 33.3 | 39.1 |
| 308 | Hyderabad, India | 39.9 | 56.8 | 54.1 | 48.6 | 42.1 | 35.5 | 24.2 | 18.2 | 27.3 | 19 | 43.2 | 51.5 | 58.9 | 42.4 | 39.4 | 34.7 | 39 | 44.2 | 51 |
| 309 |  Kuwait City, Kuwait | 39.9 | 58.2 | 35.3 | 37.1 | 27.9 | 33.2 | 32.5 | 27.7 | 39.4 | 37.9 | 37.5 | 53 | 58.5 | 57.5 | 29.7 | 34 | 38.3 | 56 | 46.8 |
| 310 | Nai Wiang, Thailand | 39.9 | 42.4 | 76.7 | 102 | 124.3 | -- | 16.3 | 13.5 | 15.8 | 12.2 | 13.5 | 22.8 | 30.4 | 25.6 | -- | -- | -- | -- | -- |
| 311 | Luzhou, China | 39.8 | 80.5 | 71.1 | 40.2 | 27.7 | 33.3 | 18.5 | 16.1 | 15.8 | 21.9 | 24.5 | 53.3 | 76.5 | 36.1 | 38.3 | 37.3 | 40.8 | 37 | 51.4 |
| 312 | Xinzhou, China | 39.6 | 58.9 | 69.1 | 44.9 | 42 | 27.4 | 20.5 | 23 | 25.1 | 31 | 32.9 | 30.8 | 69.6 | 36.9 | 44.9 | 44.4 | 41.7 | 51.4 | 62.6 |
| 313 | Jaisalmer, India | 39.6 | -- | -- | -- | 10.9 | 20.8 | 24.8 | 22.6 | 17.5 | 19.5 | 30.6 | 103.5 | 81.5 | -- | -- | -- | -- | -- | -- |
| 314 |  Bandung, Indonesia | 39.6 | 23 | 17.8 | 31.2 | 30.2 | 43.3 | 43.1 | 37.3 | 52.7 | 42.5 | 53.1 | 49.8 | 49.1 | 26.1 | 33.4 | 33.2 | -- | -- | -- |
| 315 | Jhalawar, India | 39.4 | -- | -- | 34.8 | 25.6 | 24.7 | 15.5 | 16.4 | 31.6 | 26.8 | 39.6 | 95.1 | 80.4 | -- | -- | -- | -- | -- | -- |
| 316 | Wiang Nuea, Thailand | 39.4 | 33.8 | 67.1 | 144.8 | 134.8 | 28.4 | 12 | 7 | 9.4 | 6.8 | 9.1 | 13.7 | 21.8 | -- | -- | -- | -- | -- | -- |
| 317 |  Manama, Bahrain | 39.2 | -- | 11.1 | 2.2 | 33.4 | 28.5 | 42.6 | 42.1 | 56.4 | 46.9 | 36.5 | 31.4 | 39.5 | 66.6 | 49.8 | 39.7 | 46.8 | 59.8 | 62.5 |
| 318 | Bengbu, China | 39.2 | 62.3 | 47.1 | 49.5 | 36.2 | 31 | 26.3 | 16.4 | 21.4 | 25.4 | 40 | 48.9 | 66.2 | 38 | 39.3 | 44.5 | 51.3 | 52.8 | 59.3 |
| 319 | Hecun, China | 39.2 | 52.6 | 72 | 49 | 40.2 | 29.2 | 23.9 | 24.3 | 29.9 | 34.9 | 33.5 | 34.3 | 41.8 | 39.8 | 28.6 | -- | -- | -- | -- |
| 320 | Yichang, China | 39 | 99.7 | 78.1 | 40.1 | 31.4 | 24.6 | 15.7 | 13.5 | 18.5 | 16.6 | 22.8 | 36.8 | 68.9 | 38 | 40 | 40.8 | 52.5 | 52.1 | 57.4 |
| 321 | Chengdu, China | 39 | 73.8 | 60.6 | 38.3 | 32.6 | 30.4 | 23.1 | 20.9 | 17 | 24 | 28.9 | 44.5 | 72.1 | 38.3 | 40.3 | 40.5 | 42.4 | 48.8 | 55.4 |
| 322 | Ratlam, India | 39 | 53.4 | 53 | 37.5 | 35.3 | 28.8 | 24.5 | 21.9 | 24.7 | 23.5 | 42.2 | 71.6 | 49.9 | 38 | 42.9 | 46.4 | -- | -- | -- |
| 323 | Jinan, China | 38.9 | 72.9 | 56 | 50.4 | 40.7 | 27.9 | 18.4 | 16.9 | 20.5 | 30.1 | 33.5 | 35.9 | 61 | 36.2 | 42 | 49 | 54.4 | 52.9 | 63.7 |
| 324 | Siliguri, India | 38.9 | 84.4 | 61.3 | 46.5 | 40.1 | 30.5 | 26.1 | 18.5 | 22.7 | 19.9 | 28.9 | 43.9 | 47.4 | 42.1 | 42.4 | 58.2 | 39.6 | 44.5 | -- |
| 325 | Tangshan, China | 38.8 | 47.6 | 54.6 | 64 | 36.9 | 32.4 | 26.8 | 23.3 | 23.2 | 31.5 | 40.5 | 35 | 50.3 | 33.1 | 43.2 | 46.8 | 52.6 | 63.5 | 84.7 |
| 326 | Firozabad, India | 38.8 | 52.5 | 34.9 | 27.5 | 20.1 | 27.6 | 40.3 | 26.3 | 27.9 | 20.6 | 49.2 | 72.3 | 64.4 | 46.8 | 83.4 | -- | -- | -- | -- |
| 327 | Loudi, China | 38.7 | 79 | 58.4 | 43.2 | 31.6 | 29.1 | 21.7 | 16.6 | 24.6 | 21.3 | 35.5 | 42 | 61.7 | 34 | 34.8 | 32.1 | 38.2 | 30.6 | 38.6 |
| 328 | Zhongwei, China | 38.7 | 51.4 | 45.5 | 45.7 | 77.4 | 35.4 | 29.7 | 26.4 | 25.9 | 25.2 | 25 | 35.2 | 43.4 | 34.8 | 37.1 | 33.3 | 31.5 | 36.9 | 36.6 |
| 329 | Shaoyang, China | 38.5 | 72.1 | 54.9 | 44.7 | 31.6 | 28.5 | 22.2 | 17.9 | 24.8 | 26 | 35.4 | 44.1 | 61.5 | 32.5 | 36.9 | 37.3 | 42.1 | 44 | 51.6 |
| 330 | Korla, China | 38.5 | 61.1 | 45.9 | 56.1 | 58.7 | 22.3 | 21.9 | 24.6 | 21.7 | 22.9 | 32.3 | 50.7 | 47.7 | 40 | 42.1 | 44.7 | 47.1 | 46.3 | 43 |
| 331 |  Tokmok, Kyrgyzstan | 38.5 | 102.8 | 85.9 | 39.4 | 26.6 | 14.7 | 13.8 | 11 | 11.7 | 18.1 | 35.4 | 42.7 | 59.1 | 80.1 | -- | -- | -- | -- | -- |
| 332 |  Osmaniye, Turkey | 38.5 | 88.9 | 68.7 | 30.5 | 16.1 | 17.6 | 20.5 | 19.1 | 25.7 | 25.4 | 23.6 | 33.8 | 95.3 | 21.5 | 26.3 | -- | -- | -- | -- |
| 333 | Weifang, China | 38.4 | 62.5 | 53.2 | 50.8 | 36.3 | 28.2 | 19.5 | 17 | 18.6 | 28.6 | 37.7 | 39.4 | 66.4 | 34.6 | 40.2 | 49.9 | 56.2 | 52.6 | 56.9 |
| 334 | Ili, China | 38.4 | 126.2 | 73.1 | 28.4 | 20.7 | 17.6 | 19.3 | 18.2 | 17.8 | 17 | 27.5 | 37.1 | 55.5 | 36.1 | 35.7 | 43.6 | 41.5 | 47.1 | 49.6 |
| 335 | Huainan, China | 38.3 | 72.9 | 54.6 | 53.8 | 37.4 | 27.5 | 20.4 | 12.8 | 18.7 | 22.3 | 34.8 | 43.2 | 61 | 40.8 | 42.2 | 47.4 | 52.5 | 54.8 | 61.6 |
| 336 | Ezhou, China | 38.3 | 76.1 | 59.1 | 47.7 | 32.3 | 26.9 | 18.8 | 10.8 | 19 | 16.6 | 46.9 | 42.5 | 61 | 34.3 | 37.4 | 37.8 | 42.5 | 44.9 | 56.4 |
| 337 | Jinzhou, China | 38.3 | 52.2 | 54.9 | 66.6 | 38.7 | 30.6 | 25.4 | 21 | 18.3 | 23.6 | 39 | 36.8 | 52.2 | 36.2 | 41.6 | 46.9 | 45.3 | 44.4 | 46.8 |
| 338 | Zhangqiu, China | 38.3 | 68.3 | 55.6 | 48.8 | 39.6 | 28.7 | 18.5 | 16 | 19.8 | 31.3 | 33.4 | 38.1 | 60.6 | 38.4 | 42.4 | 49.1 | 50.1 | 49.2 | 66.7 |
| 339 | Datong, China | 38.2 | 68.7 | 48.2 | 51.4 | 40.8 | 30.7 | 22.7 | 11.2 | 18.4 | 21.6 | 35.7 | 43.8 | 66 | 39.2 | 39.6 | -- | -- | -- | -- |
| 340 |  Balykshi, Kazakhstan | 38.2 | 58.4 | 53 | 39.7 | 44.1 | 48.5 | 39.6 | 38.7 | 24.1 | 19.5 | 24.7 | 31.6 | 40.2 | 65.4 | 57.2 | -- | -- | -- | -- |
| 341 |  Abu Dhabi, United Arab Emirates | 38.2 | 25.4 | 26.8 | 37.1 | 29.6 | 26.9 | 35.2 | 47.8 | 54.6 | 51.5 | 50.1 | 30.1 | 41.7 | 48 | 33.8 | 23.9 | 38.4 | 48.8 | -- |
| 342 | Hengyang, China | 38.1 | 78.3 | 57.6 | 42.7 | 25.5 | 32.1 | 19.6 | 15.9 | 21.9 | 22.8 | 38.4 | 42.6 | 60.2 | 31.5 | 35.9 | 35.3 | 42.1 | 41.3 | 47.8 |
| 343 | Uppal Kalan, India | 38.1 | 48.2 | 34.2 | 32.1 | 37.1 | 38.7 | 37 | 33.4 | 41 | 36.8 | 42.7 | 41.8 | 35.7 | -- | -- | -- | -- | -- | -- |
| 344 |  Torchiarolo, Italy | 38.1 | 14.1 | 83.6 | 59.6 | 10.3 | 13.9 | 11.9 | 128.7 | 13.5 | -- | -- | 13.4 | 35.5 | 10.8 | 12.3 | 12.6 | 13.8 | 17.2 | 19.9 |
| 345 | Nong Jom, Thailand | 38.1 | 34.5 | 55.7 | 98.1 | 121.9 | 23.8 | 10.1 | 5.1 | 11.1 | 7.1 | 9.5 | 17.9 | 23.8 | 23.7 | -- | -- | -- | -- | -- |
| 346 | Talat Khwan, Thailand | 38.1 | 34.4 | 54.1 | 103.4 | 129.9 | 29.2 | 10.4 | 6.3 | 12.2 | 8.8 | 9.9 | 21 | 29.1 | -- | -- | -- | -- | -- | -- |
| 347 | Fengrun, China | 38 | 44.8 | 52.5 | 57.2 | 33.3 | 32.2 | 26.2 | 25.2 | 18.6 | 31.5 | 41.8 | 37.7 | 55.8 | 32.8 | 45.3 | -- | -- | -- | -- |
| 348 | Zhenjiang, China | 38 | 54 | 44 | 48.1 | 41.7 | 33.4 | 25.7 | 18.5 | 23.1 | 24.7 | 35.9 | 43.6 | 61.4 | 35.1 | 37.7 | 37.7 | 45 | 53.2 | 53.9 |
| 349 | Meishan, China | 38 | 74.6 | 62.7 | 35 | 26.3 | 25.6 | 16.4 | 14.8 | 16.3 | 24 | 29.8 | 49.5 | 78.4 | 35.8 | 33 | 31.4 | 35.2 | 36.2 | 47.1 |
| 350 | Vemuluru, India | 38 | 74.8 | 44 | 45.6 | 27.8 | 26.4 | 23.9 | 8 | 17 | 13.8 | 45.6 | 52.7 | 75.7 | 29.8 | -- | -- | -- | -- | -- |
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