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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 151 |  Huangpi, China | 48.4 | 99 | 67.9 | 63.8 | 48.2 | 33.2 | 28.4 | 20.8 | 27.8 | 27.4 | 52.9 | 49.5 | 57.6 | 42.7 | 45.6 | -- | -- | -- | -- |
| 152 | Liaocheng, China | 48.2 | 96.4 | 66.6 | 65 | 46.1 | 30.5 | 23.7 | 19.9 | 23 | 33.3 | 54.1 | 48.5 | 67.8 | 43 | 47.6 | 53.9 | 58.8 | 60.3 | 72 |
| 153 | Yuncheng, China | 48.2 | 104 | 84 | 55.2 | 44.4 | 27.2 | 23.7 | 23.4 | 23.2 | 25 | 42.6 | 47.2 | 77.1 | 50.2 | 48.4 | 57.7 | 61.2 | 59.8 | 71.9 |
| 154 |  Osh, Kyrgyzstan | 48.2 | 134.4 | 104.4 | 51.8 | 33.6 | 15.1 | 13.6 | 15.8 | 18.9 | 23.7 | 33.2 | 48.2 | 88.9 | 39.7 | 60.9 | -- | -- | -- | -- |
| 155 | Kaifeng, China | 48.1 | 100.6 | 79.5 | 58.7 | 49.1 | 27.2 | 22.2 | 17.5 | 22.2 | 29.9 | 49.7 | 51.6 | 67.3 | 50.2 | 47.8 | 55.5 | 61 | 64.6 | 66.8 |
| 156 | Zhoukou, China | 48.1 | 113.8 | 72.4 | 53.3 | 46.9 | 29.2 | 22.3 | 13.1 | 21.2 | 24.7 | 53.8 | 51.3 | 72.9 | 44.9 | 44.8 | 50.3 | 56.6 | 58.9 | 59.9 |
| 157 | Xinji, China | 48 | 68.7 | 67.1 | 58.9 | 41.9 | 33.9 | 20.9 | 21 | 20 | 40.8 | 57.9 | 62.5 | 78.6 | 44.9 | 42.1 | -- | -- | -- | -- |
| 158 | Xiangyang, China | 48 | 104.2 | 78.7 | 54.9 | 47.4 | 31.4 | 24.7 | 21.1 | 24.7 | 24.5 | 39.2 | 52.5 | 70.7 | 50.2 | 50.6 | 52.5 | 60.4 | 60.5 | 64.4 |
| 159 | Weinan, China | 48 | 105.8 | 94.9 | 55.9 | 58.3 | 25.8 | 18.1 | 19.4 | 19.9 | 24.9 | 40.1 | 46.9 | 75.1 | 51 | 45.3 | 52.5 | 55.6 | 58.2 | 68.8 |
| 160 |  Kiri Buru, India | 48 | 82.8 | 60.2 | 81.8 | 63.9 | 41.1 | 36.7 | 16.2 | 24.5 | 23 | 39.4 | 51.1 | 54.3 | -- | -- | -- | -- | -- | -- |
| 161 | Churu, India | 48 | -- | 63.1 | 32.6 | 24.2 | 24.7 | 16.7 | 13.2 | 22.9 | 18.8 | 40.7 | 166.4 | 97.6 | -- | -- | -- | -- | -- | -- |
| 162 | Murwara, India | 47.9 | 122.7 | 65.4 | 47.2 | 40.2 | 33.7 | 26.5 | 19.7 | 22.7 | 22.3 | 55.1 | 100.7 | 73.6 | 51.3 | -- | -- | -- | -- | -- |
| 163 | Xuchang, China | 47.8 | 108 | 80.9 | 54 | 46.5 | 25 | 21.3 | 15.7 | 23.4 | 26.8 | 55.7 | 49.3 | 64.6 | 46.9 | 45.1 | 53.6 | 60.6 | 64.2 | 63.2 |
| 164 | Yanta, China | 47.8 | 92.2 | 65.8 | 56.4 | 42.9 | 31.3 | 24 | 23.1 | 24.1 | 36 | 54.2 | 49.1 | 66.4 | 46.1 | 43.2 | -- | -- | -- | -- |
| 165 | Kolkata, India | 47.8 | 98.2 | 54.6 | 44.5 | 42.7 | 27.6 | 24.8 | 13.1 | 31.2 | 20.1 | 50.5 | 80.8 | 85.9 | 50.2 | 59 | 46.6 | 59.8 | 85.4 | 76.7 |
| 166 | Handan, China | 47.7 | 76.5 | 71.4 | 58.2 | 46.9 | 32.4 | 23.8 | 22.8 | 24.7 | 34.5 | 53.6 | 55.8 | 72.7 | 46.5 | 45.6 | 58.9 | 64.3 | 74 | 96.7 |
| 167 | Luohe, China | 47.7 | 114 | 75.4 | 54.3 | 45.7 | 28 | 21.9 | 15.6 | 24 | 25.9 | 47.3 | 50.2 | 67.5 | 51.2 | 49.7 | 55.4 | 60 | 62.6 | 63.7 |
| 168 | Shashi, China | 47.7 | 119.3 | 82.4 | 53.2 | 42.8 | 31.8 | 21.5 | 17.7 | 25.3 | 23 | 38.3 | 49.6 | 66.5 | 41.6 | 37.9 | 38.9 | 42.6 | -- | -- |
| 169 | Shangqiu, China | 47.5 | 108.8 | 65.9 | 54.3 | 43.2 | 26.2 | 22 | 16.2 | 22.5 | 27 | 57.6 | 51 | 72.6 | 46.4 | 45.8 | 52.7 | 72.6 | 61.9 | 61.8 |
| 170 | Moradabad, India | 47.5 | 56.4 | 45.3 | 54.1 | 48.5 | 47.1 | 39.8 | 31.5 | 29.5 | 26.9 | 48.5 | 77.3 | 65.2 | 47.1 | 82.5 | -- | 76.5 | 104.9 | -- |
| 171 | Yuci, China | 47.3 | 59.6 | 85.3 | 55.6 | 51.4 | 34.8 | 27.9 | 25.5 | 27.9 | 36.1 | 47.5 | 43.7 | 73.4 | -- | -- | -- | -- | -- | -- |
| 172 | Kodiyat, India | 47.3 | 73.2 | 43.2 | 36.7 | 38.1 | 54.1 | 37.9 | 34.5 | 33.2 | 31.3 | 39.8 | 72.2 | 72.6 | 53.5 | -- | -- | -- | -- | -- |
| 173 |  Igdir, Turkey | 47.2 | 177.2 | 43.3 | 37.6 | 15.9 | 14.2 | 13 | 12 | 19.7 | 17.8 | 29.1 | 68.1 | 113.6 | 53 | 66.2 | -- | -- | -- | -- |
| 174 | Wujiaqu, China | 47.1 | 162.3 | 121.8 | 48.8 | 17.8 | 18.5 | 18 | 15.5 | 15.2 | 13.3 | 21.2 | 32.3 | 76.9 | 53.3 | 41.7 | 40.6 | 53.9 | 67.8 | 74.1 |
| 175 | Jingzhou, China | 46.9 | 117.6 | 81.3 | 53.6 | 41.6 | 30.8 | 21.1 | 16.8 | 24.7 | 23.5 | 35.4 | 48.7 | 66.4 | 42.7 | 35 | 36.1 | 45.3 | 47.7 | 55.7 |
| 176 | Yangliuqing, China | 46.9 | 66.8 | 66.3 | 64.1 | 40.7 | 33.7 | 23.7 | 25.2 | 22.7 | 39.8 | 56.9 | 50.1 | 70.8 | 40.5 | 43.1 | -- | -- | -- | -- |
| 177 | Sawai Madhopur, India | 46.8 | -- | 68.2 | 40.9 | 30.3 | 27.8 | 37.5 | 43.1 | 37.1 | 21.1 | 50.3 | 93.5 | 66 | -- | -- | -- | -- | -- | -- |
| 178 | Luoyang, China | 46.7 | 88.5 | 88.8 | 55.5 | 46.5 | 30.7 | 24.1 | 22.8 | 27.4 | 30.5 | 39.8 | 44.1 | 61.6 | 47.4 | 44.9 | 50.7 | 62.4 | 59.9 | 72.5 |
| 179 |  Ouagadougou, Burkina Faso | 46.6 | 63.3 | 81.5 | 45.9 | 56.2 | 43.1 | 41.8 | 41.6 | 39.7 | 40 | 37.1 | 28.4 | 18.6 | 63 | -- | -- | -- | -- | -- |
| 180 | Luancheng, China | 46.5 | 68.9 | 72 | 57.8 | 43 | 30.1 | 20.6 | 21.3 | 22.5 | 40 | 52.2 | 58.2 | 74 | 45.9 | 44.8 | -- | -- | -- | -- |
| 181 |  Dhahran, Saudi Arabia | 46.5 | 56.7 | 47.9 | 37 | 36.8 | 45.9 | 45.1 | 38.4 | 56.9 | 46.6 | 41.7 | 51.1 | 54.1 | 62.8 | 33 | 36.6 | -- | -- | -- |
| 182 | Bundi, India | 46.4 | -- | -- | -- | 21.1 | 20.3 | 32.3 | 55.9 | 32.7 | 15.9 | 39.4 | 91.3 | 86.5 | -- | -- | -- | -- | -- | -- |
| 183 | Wuhan, China | 46.3 | 94.1 | 65.5 | 56.9 | 41.5 | 33.7 | 27.9 | 18.4 | 27.7 | 24.5 | 50.8 | 48.7 | 66.7 | 45.9 | 46.7 | 36.5 | 44.4 | 46.9 | 51 |
| 184 | Yangcun, China | 46.3 | 59.3 | 67.8 | 74 | 46.1 | 37.1 | 26.9 | 27 | 26.9 | 37 | 50.8 | 39.5 | 62.1 | 39.1 | 43 | -- | -- | -- | -- |
| 185 | Serilingampalle, India | 46.3 | 48.7 | 49.9 | 46.4 | 47.7 | 36.9 | 39 | 38.6 | 51.4 | 42.6 | 69 | 46.5 | 33 | -- | -- | -- | -- | -- | -- |
| 186 | Linshui, China | 46.2 | 68.8 | 72.7 | 55.9 | 46.4 | 35.2 | 21 | 21.6 | 25.5 | 34 | 48.2 | 53.8 | 64.6 | 46.3 | 40.5 | -- | -- | -- | -- |
| 187 |  Wiang, Thailand | 46.2 | 30.7 | 68.1 | 161.4 | 193.5 | 33.4 | 11.6 | 6.7 | 9 | 7.7 | 9.4 | 16.1 | 22.6 | 20.7 | -- | -- | -- | -- | -- |
| 188 | Jiaozuo, China | 46.1 | 84.4 | 81.6 | 58.3 | 45.9 | 29.8 | 24.2 | 19.9 | 26.8 | 29.5 | 42.8 | 47.9 | 61.4 | 49.5 | 47.1 | 56.2 | 61.3 | 66.9 | 74.8 |
| 189 | Ajmer, India | 46.1 | 54.3 | 51.3 | 42.7 | 41 | 44.2 | 37.3 | 41.4 | 47.5 | 35.8 | 37.7 | 71.8 | 45.9 | 52.1 | 43.7 | 39.8 | 48.1 | 54 | -- |
| 190 | Caidian, China | 46 | 94.5 | 65 | 55.9 | 42 | 34.4 | 28.9 | 18.8 | 29.9 | 26.5 | 53.6 | 48.4 | 54.5 | 42.7 | 40.3 | -- | -- | -- | -- |
| 191 | Jabalpur, India | 46 | 102.9 | 59.9 | 43.7 | 39.2 | 31.6 | 25.3 | 18 | 23.1 | 23.2 | 49 | 84.4 | 54 | 46 | 42.5 | 46.7 | -- | -- | -- |
| 192 | Kanpur, India | 46 | 74.5 | 46.1 | 40.1 | 43.5 | 37 | 33.9 | 23.1 | 27.1 | 26.8 | 50.6 | 79.4 | 70.2 | 66.2 | 83.2 | 89.1 | 48.5 | 88.2 | 119.2 |
| 193 |  Dushanbe, Tajikistan | 46 | 64.4 | 38.5 | 24.2 | 38.4 | 33.5 | 35.5 | 41.7 | 33.1 | 51.2 | 44.7 | 64.4 | 92 | 47.7 | 59.5 | 30.9 | -- | -- | -- |
| 194 | Dingtao, China | 45.8 | 102.2 | 67.4 | 54.8 | 35.3 | 27 | 19.7 | 11 | 18.6 | 28.1 | 57.7 | 50.7 | 68 | 45.2 | 41.3 | -- | -- | -- | -- |
| 195 |  Baghdad, Iraq | 45.8 | 79.5 | 60.1 | 52.5 | 28.6 | 48.4 | 26.7 | 21.8 | 32.4 | 32.1 | 43.8 | 63.1 | 53.8 | 86.7 | 49.7 | -- | 39.6 | -- | -- |
| 196 | Xian, China | 45.7 | 107.6 | 99 | 51.7 | 51 | 22.5 | 17.2 | 18.7 | 19 | 21.7 | 30 | 46.7 | 73.7 | 48.6 | 41.1 | 49.3 | 56.6 | 59.9 | 70.2 |
| 197 | Bhopal, India | 45.7 | 65.3 | 43.4 | 38.3 | 34.1 | 36.3 | 25.8 | 19.4 | 26.7 | 26.9 | 58.5 | 103.3 | 71.4 | 40.5 | 42.6 | 39.1 | 44.6 | -- | -- |
| 198 | Mae Ka, Thailand | 45.5 | 20.4 | 98.2 | 163.3 | 140.3 | 32.7 | 10 | 5.9 | 11.4 | 6.5 | 8.1 | 18.1 | 23.5 | 36.6 | -- | -- | -- | -- | -- |
| 199 |  Abuja, Nigeria | 45.4 | 111.8 | 89.2 | 43.8 | 34.9 | 23.6 | 15.8 | 24.5 | 23.3 | 17.2 | 35.4 | 47.6 | 80.3 | 46.5 | 27.3 | -- | -- | -- | -- |
| 200 | Jining, China | 45.3 | 93.7 | 66 | 58.7 | 44.5 | 29.8 | 24.3 | 18 | 22.9 | 26.2 | 44.2 | 46.4 | 66.1 | 43.6 | 48.1 | 53.4 | 56.6 | 50.1 | 56.2 |
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