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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1101 |  Nujiang, China | 20.9 | 26.6 | 34 | 32.8 | 34.5 | 20 | 14.9 | 11.4 | 10.7 | 14.4 | 14.3 | 17.8 | 17.9 | 20.1 | 25.4 | 22.5 | 24.9 | 24.4 | 19.7 |
| 1102 |  El Fureidis, Israel | 20.9 | 22.9 | 17.2 | 18.8 | 20.1 | 25.6 | 19.4 | 21.1 | 19.6 | 19 | 21 | 22.5 | 22.7 | -- | -- | -- | -- | -- | -- |
| 1103 |  Atyrau, Kazakhstan | 20.9 | 40.6 | 33.4 | 23.3 | 66 | 11.5 | 10.2 | 8 | 9.3 | 10 | 11.1 | 13.6 | 11.7 | 18 | 39.1 | -- | -- | -- | -- |
| 1104 |  Bitola, North Macedonia | 20.9 | 42.8 | 34.5 | 16.3 | 10.1 | 7.7 | 12.1 | 14.5 | 12.5 | 12.1 | 15.3 | 23.2 | 50.1 | 18.5 | 22 | 25.9 | -- | -- | -- |
| 1105 |  Ksawerów, Poland | 20.9 | 32.4 | 32.5 | 33.3 | 27.3 | 14.8 | 17.4 | 12.3 | 12.7 | 17.1 | 17 | 17.7 | 20.6 | 30.8 | 31.9 | 28.7 | 28.7 | -- | -- |
| 1106 |  Tainan, Taiwan | 20.9 | 29.8 | 31.7 | 27.1 | 27 | 21.4 | 9.1 | 7.3 | 9.2 | 12.9 | 24.8 | 25.7 | 25.7 | 17.8 | 20.1 | 18.4 | 22.6 | 23.9 | 24.9 |
| 1107 |  Nai Mueang, Thailand | 20.9 | 16.7 | 31.1 | 39.4 | 42 | 27.8 | 9.4 | 7.4 | 13.1 | 7.2 | -- | -- | 24 | -- | -- | -- | -- | -- | -- |
| 1108 |  Izmit, Turkey | 20.9 | 27.6 | 24.5 | 16.5 | 22.5 | 21.1 | 18.2 | 14 | 13.5 | 10.3 | 28 | 23.8 | 32.2 | 19.4 | -- | -- | -- | -- | -- |
| 1109 |  Yellowknife, Canada | 20.8 | 4.4 | 3.1 | 3.7 | 3.6 | 11.5 | 19.8 | 50.7 | 63 | 70.6 | 10.6 | 3.6 | 3.8 | 5.3 | 4.6 | 4.4 | 4.9 | -- | -- |
| 1110 |  Puente Alto, Chile | 20.8 | 11.8 | 26.5 | 14.1 | 17.2 | 31.7 | 27.4 | 30.6 | 21.1 | 19.6 | 15.5 | -- | 13 | 19.7 | 22.7 | 20.6 | 23.5 | -- | -- |
| 1111 | Beihai, China | 20.8 | 41.3 | 28.3 | 25.9 | 21.6 | 16 | 8.1 | 7.8 | 8.3 | 11.5 | 20.5 | 28.1 | 31.1 | 23.1 | 24.5 | 23.1 | 26.9 | 27.6 | 28.5 |
| 1112 | Jingdezhen, China | 20.8 | 34.1 | 22.9 | 23.1 | 20.1 | 20.7 | 17.8 | 12.9 | 15.4 | 13.9 | 22.2 | 22 | 25.6 | 19.2 | 22.7 | 24.3 | 26.7 | 28.8 | 37.8 |
| 1113 | Baicheng, China | 20.8 | 28.3 | 26.7 | 31.7 | 39.1 | 19.6 | 11.2 | 11 | 6.3 | 8.9 | 18.6 | 24.6 | 25.3 | 21.1 | 24 | 24.2 | 26.5 | 28.3 | 31.6 |
| 1114 | Liangshan, China | 20.8 | 45.4 | 33.9 | 17.7 | 20.4 | 14.7 | 13.4 | 12.3 | 13.4 | 15.7 | 13.3 | 24.6 | 25.2 | 20.5 | 20.8 | 21.4 | 19.7 | 20.7 | 21.7 |
| 1115 | Karamay, China | 20.8 | 62.1 | 45.4 | 18.3 | 10.6 | 10.2 | 10.3 | 8.4 | 8.6 | 8.8 | 12.5 | 14.8 | 37.8 | 26.1 | 22.9 | 25.2 | 23.4 | 25.2 | 31.3 |
| 1116 |  Tanjong Dua Belas, Malaysia | 20.8 | 19 | 18.5 | 20.8 | 24.9 | 18.5 | 22.1 | 19.7 | 24 | 27.9 | 27.9 | 12.5 | 11.9 | -- | -- | -- | -- | -- | -- |
| 1117 |  Popricani, Romania | 20.8 | 31.7 | 29.2 | 28.2 | 23.3 | 14.7 | 13.4 | 14.2 | 15.7 | 15.5 | 11.5 | 17.1 | 34.2 | 23.2 | 31 | -- | -- | -- | -- |
| 1118 |  Usce, Serbia | 20.8 | 31.7 | 18.6 | 21.9 | 20.9 | 15.8 | 15.9 | 17.3 | 18.3 | 15.6 | 17.5 | 19.6 | 35.5 | -- | -- | -- | -- | -- | -- |
| 1119 |  Yongin, South Korea | 20.8 | 31.4 | 35.7 | 33.3 | 18 | 17.9 | 15.9 | 14.1 | 12.7 | 11.5 | 16.3 | 19.3 | 24.6 | 19.6 | 20.5 | 21.4 | 25.2 | 24.8 | 28.1 |
| 1120 | Qianxinan, China | 20.7 | 34.7 | 29.1 | 27.5 | 26.3 | 14.7 | 11.2 | 9.1 | 8.8 | 11.1 | 14.7 | 27.7 | 35.2 | 17.1 | 20.8 | 18.7 | 20.2 | 14.9 | 16 |
| 1121 | Ramat Gan, Israel | 20.7 | 22.1 | 18.6 | 18.4 | 18.1 | 22.8 | 17.7 | 17.3 | 18.7 | 19.8 | 22.5 | 24.8 | 28 | 20.5 | 20.2 | 18.8 | 22.6 | 19.3 | 21 |
| 1122 |  Bandarawela, Sri Lanka | 20.7 | -- | -- | 25.1 | 34.8 | 35.2 | 22.9 | 19.9 | 26 | 11.6 | 20.5 | 13.6 | 13.6 | -- | -- | -- | -- | -- | -- |
| 1123 | Donggang Township, Taiwan | 20.7 | 31.8 | 32.6 | 30.6 | 25.6 | 18.1 | 11.1 | 10.6 | 10.9 | 14.2 | 19.7 | 24 | 27.3 | -- | -- | -- | -- | -- | -- |
| 1124 | Ta Kao, Thailand | 20.7 | 22 | 38.4 | 57.3 | 41.2 | 21.4 | 7.6 | 6.7 | 7.4 | 5.6 | 11.2 | 15.2 | 15.3 | -- | -- | -- | -- | -- | -- |
| 1125 | Pong, Thailand | 20.7 | 28 | 37.1 | 40.6 | 42.9 | 22 | 7.9 | 6.1 | 7.6 | 7 | 14.4 | 18.9 | 24.5 | -- | -- | -- | -- | -- | -- |
| 1126 |  Zvornik, Bosnia Herzegovina | 20.6 | 34 | 37.5 | 22.5 | 21.2 | 16.2 | 16.4 | 15 | 15.9 | 15.1 | 12.7 | 15.2 | 26.5 | 26.8 | 25.7 | -- | -- | -- | -- |
| 1127 | Heyuan, China | 20.6 | 28.2 | 24.3 | 26.2 | 21.1 | 19.3 | 11.6 | 12.3 | 15 | 15.5 | 21.9 | 27.4 | 24.2 | 17.4 | 20.8 | 21.7 | 24.5 | 29.2 | 31.2 |
| 1128 | Xiongzhou, China | 20.6 | 28.9 | 31 | 29.3 | 21.8 | 17.4 | 11.8 | 10.8 | 11.5 | 13.1 | 19.1 | 24.8 | 27.9 | 18.8 | 23.9 | 20.9 | 25.7 | -- | -- |
| 1129 | Ninghai, China | 20.6 | 30.1 | 23.2 | 22.2 | 23.8 | 17.4 | 16.1 | 11.6 | 12.7 | 13.3 | 18.4 | 23.5 | 35.4 | 19.2 | 18.5 | -- | -- | -- | -- |
| 1130 |  Vasilika, Greece | 20.6 | 31.3 | 34.4 | 22.5 | 18.8 | 15.5 | 14 | 16.1 | 15.7 | 14.7 | 11.2 | 10.4 | 29.3 | 23.9 | 23.2 | -- | -- | -- | -- |
| 1131 | Netanya, Israel | 20.6 | 25.7 | 23.5 | 20.5 | 21.7 | 27 | 15.1 | 15 | 19.5 | 20.2 | 22.4 | 17.8 | 20.3 | 22.9 | 21.7 | -- | -- | -- | -- |
| 1132 | Hadera, Israel | 20.6 | 21.9 | 20 | 20.2 | 20.1 | 26.3 | 18.1 | 18.6 | 18.1 | 19.5 | 20.9 | 21.1 | 22.7 | 21.8 | 18.2 | 17.4 | 20 | -- | -- |
| 1133 |  Schivenoglia, Italy | 20.6 | 24.2 | 38.9 | 25.6 | 12.9 | 10.2 | 8.9 | 11.1 | 11.9 | 13.5 | 18.2 | 18.8 | 32.3 | 10.6 | 19.2 | -- | -- | -- | -- |
| 1134 |  Antananarivo, Madagascar | 20.6 | 10.4 | -- | 11.8 | 17.3 | 23.2 | 24.9 | 20.5 | 16.6 | 20 | 36.8 | 24.8 | 14.5 | 23.7 | 21.5 | 20.7 | -- | -- | -- |
| 1135 | Tanah Merah, Malaysia | 20.6 | 16.8 | 22.2 | 24.5 | 39.9 | 21 | 21.4 | 34.9 | 12.1 | 15.3 | 17.6 | 12.7 | 9.5 | 15.4 | 18.7 | 17.3 | 14.4 | -- | -- |
| 1136 |  Garcia, Mexico | 20.6 | 28.2 | 23.4 | 26.2 | 23.9 | 25.8 | 28.5 | 12.2 | 10.9 | 9.4 | 18 | 19.2 | 21.8 | 24.6 | 19.9 | 23.9 | 24.3 | -- | -- |
| 1137 | Ganzhou, China | 20.5 | 33 | 25.9 | 26.7 | 19.5 | 18.9 | 12.6 | 10.9 | 12.2 | 13.2 | 20.5 | 25.2 | 27.4 | 18.9 | 22.2 | 25.2 | 28.4 | 37.7 | 46.6 |
| 1138 | Cheongyang, South Korea | 20.5 | 29.1 | 40.9 | 27.5 | 23.2 | 16.4 | 16.7 | 12.8 | 14.2 | 10.4 | 14.8 | 17.4 | 24.6 | 19 | 19.3 | -- | 29.5 | -- | -- |
| 1139 | Gwangmyeong, South Korea | 20.5 | 29.8 | 34.7 | 32.2 | 20.5 | 19.2 | 16.5 | 14.6 | 13.6 | 12.3 | 15.7 | 18.2 | 20.4 | 20.2 | 21.3 | -- | 26.9 | 25.2 | 27.1 |
| 1140 | Kanchanaburi, Thailand | 20.5 | 32.5 | 49.5 | 50.5 | 40 | 13.3 | 5 | 5 | 4.9 | 3.2 | 8.1 | 13.8 | 18 | -- | -- | -- | -- | -- | -- |
| 1141 | Traiguen, Chile | 20.4 | 5.9 | 14.7 | 14.5 | 24 | 34.4 | 37.1 | 32.1 | 31.1 | 18.5 | 16.2 | 7 | 3.7 | 30.1 | 30.1 | -- | -- | -- | -- |
| 1142 | Dongguan, China | 20.4 | 26.2 | 25.8 | 24.9 | 20.8 | 19.1 | 12.7 | 9.4 | 13.4 | 14.3 | 21.1 | 28.6 | 29.2 | 20 | 22.6 | 23.7 | 31.5 | 34.9 | 35.9 |
| 1143 | Humen, China | 20.4 | 26.8 | 24.9 | 24.6 | 20.4 | 19.4 | 11.5 | 9.7 | 11.9 | 13 | 21.9 | 29.6 | 31.6 | 21.3 | 20.1 | -- | -- | -- | -- |
| 1144 | Tangkak, Malaysia | 20.4 | 13.2 | 9.9 | 13.8 | 29 | 20.8 | 23.7 | 15.2 | 19.6 | 28.7 | 47.2 | 13.1 | 10.3 | 15.3 | 15.4 | 13 | 18.6 | -- | -- |
| 1145 |  Khuma, South Africa | 20.4 | 13.3 | 12.4 | 12.8 | 17.9 | 16.1 | 27.8 | 28.3 | 28.2 | 24.9 | 17.7 | 13.3 | 10.5 | 8.7 | -- | -- | -- | -- | -- |
| 1146 | Gampaha, Sri Lanka | 20.4 | 40.2 | 32 | 35.4 | 26.4 | 19.4 | 13.1 | 13.1 | 17.6 | 8.3 | 13.2 | 11.1 | 14.1 | 30.5 | 21.6 | 27.1 | -- | -- | -- |
| 1147 | Bang Phli, Thailand | 20.4 | 27.7 | 35.2 | 36.3 | 38.2 | 18.8 | 7.3 | 7 | 8.6 | 7.8 | 16 | 19.5 | 25.8 | 15.4 | 19.9 | 21.7 | 24.2 | -- | -- |
| 1148 | Adana, Turkey | 20.4 | 29.1 | 21.1 | 16.1 | 12.4 | 19.1 | 20 | 18.8 | 21.3 | 16.2 | 21.5 | 23 | 26 | 15.9 | 14.5 | -- | -- | -- | -- |
| 1149 | Zhanjiang, China | 20.3 | 34.6 | 24.8 | 25.5 | 19.8 | 15.9 | 11.6 | 10.2 | 11.8 | 11.6 | 19.4 | 26.3 | 30.6 | 20.6 | 22.9 | 21.2 | 25.4 | 25.4 | 28.4 |
| 1150 |  Denpasar, Indonesia | 20.3 | 13.9 | 15.3 | 19.1 | 15.8 | 22.3 | 26.2 | 18.2 | 25 | 20.5 | 24.7 | 23.9 | 18.5 | 17.1 | 16.3 | 18.4 | 22 | 19.4 | -- |
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