2017-2025
World's most polluted cities
The most polluted cities according to data aggregated from over 80,000 data points.
2025
World Air Quality Report
2025
World Air Quality Report
PM2.5 legend
0-5Meets WHO guideline
5.1-10Exceeds by 1 to 2 times
10.1-15Exceeds by 2 to 3 times
15.1-25Exceeds by 3 to 5 times
25.1-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 101 |  Amritsar India | 46.6 | 57.3 | 58.9 | 49.2 | 55 | 47.1 | 47.2 | 60.6 | -- |
| 102 |  Van Giang Vietnam | 46.6 | 47.7 | -- | -- | -- | -- | -- | -- | -- |
| 103 | Muzaffarpur India | 46.5 | 67 | 77.5 | 79.2 | 82.9 | 74.3 | 81.2 | 110.3 | 107.4 |
| 104 | Khanna India | 46.4 | 49.7 | -- | -- | -- | -- | -- | -- | -- |
| 105 | Siwan India | 46.3 | 61.3 | 90.6 | 58.5 | -- | -- | -- | -- | -- |
| 106 | Churu India | 46.3 | 52.6 | 48 | -- | -- | -- | -- | -- | -- |
| 107 | Saharsa India | 46.2 | 67.5 | 89.4 | 76.6 | -- | -- | -- | -- | -- |
| 108 | Buxar India | 46.1 | 61.1 | -- | -- | -- | -- | -- | -- | -- |
| 109 | Byasanagar India | 46.1 | 47.2 | -- | -- | -- | -- | -- | -- | -- |
| 110 | Udaipur India | 46 | 52.7 | -- | -- | -- | -- | -- | -- | -- |
| 111 |  Karachi Pakistan | 45.9 | 47.1 | 56.4 | 50.6 | 45.9 | 43.8 | 40.2 | 33.7 | 38.5 |
| 112 | Hanoi Vietnam | 45.9 | 45.4 | 43.7 | 40.1 | 36.2 | 37.9 | 46.9 | 40.8 | 45.8 |
| 113 |  Kuwait City Kuwait | 45.7 | 30.2 | 39.9 | 57.5 | 29.7 | 34 | 38.3 | 56 | 46.8 |
| 114 |  Turpan China | 45.6 | 47.5 | 44.6 | 47.3 | 49.6 | 49.5 | 56.3 | 56.1 | 66.1 |
| 115 | Suakati India | 45.6 | 46.3 | -- | -- | -- | -- | -- | -- | -- |
| 116 | Kashipur India | 45.3 | 46.5 | 35.2 | -- | -- | -- | -- | -- | -- |
| 117 | Jalandhar India | 45.1 | 48.6 | 51.4 | 46.3 | 58.3 | 52.2 | 41 | 56.4 | -- |
| 118 | Nagpur India | 45 | 46.6 | 50.2 | 46.8 | 35.2 | 27.1 | 47.2 | 46.6 | 56.2 |
| 119 |  Cikande Indonesia | 45 | 20.3 | -- | -- | -- | -- | -- | -- | -- |
| 120 | Guwahati India | 44.7 | 53.2 | 105.4 | 51 | 53.1 | 62.1 | -- | -- | -- |
| 121 | Malegaon India | 44.7 | 51.5 | 36.6 | -- | -- | -- | -- | -- | -- |
| 122 | Bileipada India | 44.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 123 | Munger India | 44.6 | 65.8 | -- | -- | -- | -- | -- | -- | -- |
| 124 | Bhilwara India | 44.6 | 45.3 | 55.5 | -- | -- | -- | -- | -- | -- |
| 125 | Cikarang Indonesia | 44.6 | 52.8 | 53 | 47.6 | -- | -- | -- | -- | -- |
| 126 | Ahmedabad India | 44.4 | 51 | 49.6 | 53.3 | 55.1 | 49 | 59 | 76.1 | -- |
| 127 |  Baghdad Iraq | 44.3 | 40.5 | 45.8 | 86.7 | 49.7 | -- | 39.6 | -- | -- |
| 128 | Purnia India | 44.2 | 60 | -- | -- | -- | -- | -- | -- | -- |
| 129 |  Kampala Uganda | 44.2 | 41 | 27.3 | 39.6 | 27.6 | 26.1 | 29.1 | 40.8 | 54.3 |
| 130 | Nagaon India | 44.1 | 47.3 | -- | -- | -- | -- | -- | -- | -- |
| 131 | Bhubaneswar India | 44.1 | 45.6 | -- | -- | -- | -- | -- | -- | -- |
| 132 | Xianyang China | 44 | 46.1 | 51.1 | 50.8 | 45.7 | 50.5 | 63.7 | 67.8 | 77.8 |
| 133 | Luohe China | 43.8 | 49.2 | 47.7 | 51.2 | 49.7 | 55.4 | 60 | 62.6 | 63.7 |
| 134 | Heze China | 43.6 | 45.8 | 48.5 | 47.2 | 48.5 | 54.2 | 59.7 | 60.1 | 70 |
| 135 | Jhunjhunu India | 43.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 136 | Xuchang China | 43.5 | 47.8 | 47.8 | 46.9 | 45.1 | 53.6 | 60.6 | 64.2 | 63.2 |
| 137 | Ulhasnagar India | 43.5 | 51.6 | 58.3 | -- | -- | -- | -- | -- | -- |
| 138 | Jalgaon India | 43.4 | 49 | 48.6 | -- | -- | -- | -- | -- | -- |
| 139 | Kaifeng China | 43.3 | 45.9 | 48.1 | 50.2 | 47.8 | 55.5 | 61 | 64.6 | 66.8 |
| 140 | Chhapra India | 43.3 | 70.3 | -- | -- | -- | -- | -- | -- | -- |
| 141 |  Umkomaas South Africa | 43.3 | 28.9 | 10.8 | -- | -- | -- | -- | -- | -- |
| 142 |  Ruwais United Arab Emirates | 43.3 | 29.6 | 31.5 | 51.9 | 33.4 | -- | -- | -- | -- |
| 143 | Hebi China | 43.1 | 50.8 | 50.2 | 52.2 | 51.4 | 58.9 | 62.1 | 55.8 | 64.4 |
| 144 | Gaya India | 43 | 48.1 | 64.9 | 74.3 | 46.6 | 46.3 | 59.4 | 96.6 | 102.6 |
| 145 | Anyang China | 42.9 | 48.4 | 50.6 | 51 | 50.8 | 61.5 | 70.3 | 72.9 | 81.1 |
| 146 | Kanpur India | 42.9 | 45.2 | 46 | 66.2 | 83.2 | 89.1 | 48.5 | 88.2 | 119.2 |
| 147 | Bhagalpur India | 42.8 | 76.5 | 79.7 | 72.1 | -- | -- | -- | -- | -- |
| 148 | Baripada India | 42.8 | 50.6 | -- | -- | -- | -- | -- | -- | -- |
| 149 | Jingzhou China | 42.7 | 43.5 | 46.9 | 42.7 | 35 | 36.1 | 45.3 | 47.7 | 55.7 |
| 150 | Gorakhpur India | 42.7 | 51.8 | 48.5 | 42.1 | 67 | -- | -- | -- | -- |
