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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 101 |  Pali, India | 53.9 | 60 | 39.4 | 37.9 | 38.9 | 51.3 | 44.4 | 53.9 | 59.7 | 51.2 | 42.1 | 69.1 | 90.9 | 57 | 55.9 | 46.4 | 54.6 | 82.3 | -- |
| 102 | Dausa, India | 53.8 | -- | 54 | 42.9 | 36.3 | 41.9 | 33.1 | 28.5 | 43.8 | 30.9 | 47.4 | 133.7 | 101.2 | -- | -- | -- | -- | -- | -- |
| 103 | Lucknow, India | 53.5 | 76.9 | 62 | 45.5 | 51.9 | 51.2 | 43.7 | 24.1 | 35.7 | 29.9 | 48.7 | 97.1 | 77 | 64.7 | 86 | 86.2 | 90.3 | 115.7 | 119.2 |
| 104 | Bikaner, India | 52.9 | -- | 65.2 | 39.1 | 32.1 | 40.8 | 24.9 | 17.1 | 27 | 25.8 | 50.1 | 156.4 | 104.8 | -- | -- | -- | -- | -- | -- |
| 105 | Baran, India | 52.5 | -- | -- | -- | -- | 22.9 | 27.7 | 47.9 | 51.8 | 37.8 | 52.6 | 85.1 | 77.3 | -- | -- | -- | -- | -- | -- |
| 106 | Raha, India | 52.3 | -- | 114.3 | 88.7 | 73.2 | 40.2 | 32.4 | 22 | 21.9 | 58 | 31.5 | 44.4 | 56.6 | -- | -- | -- | -- | -- | -- |
| 107 | Hapur, India | 52.2 | 55 | 36.1 | 27.8 | 24.5 | 22.3 | 23.3 | 25.4 | 35 | 36.9 | 83.1 | 137.6 | 118 | 68.1 | 58.2 | 44.2 | -- | -- | -- |
| 108 | Visakhapatnam, India | 52.1 | 86.9 | 58 | 52.2 | 44.4 | 38.4 | 42.6 | 29.1 | 39.5 | 37.9 | 63.8 | 58.3 | 73.9 | 44.7 | 44.3 | 40.3 | 44 | 52.8 | 50.4 |
| 109 |  Sreepur, Bangladesh | 52 | 82.2 | -- | 130.5 | 76.1 | 59.7 | 45.7 | 15.7 | 39.8 | 24.9 | 52.5 | 58 | 68.6 | 53.6 | 74.8 | 55.7 | -- | -- | -- |
| 110 | Kupti, India | 52 | 81.9 | 62.3 | 60.6 | 52.4 | 45 | 31.7 | 16.5 | 19.6 | 23.2 | 57.6 | 82.5 | 88 | 40.7 | 31.1 | 28 | 34.2 | -- | -- |
| 111 | Pimpri-Chinchwad, India | 52 | 77.8 | 77.7 | 59.6 | 43 | 39.5 | 30.4 | 20.9 | 28 | 23.2 | 64.6 | 71.6 | 83.6 | 50.1 | 45.6 | 41.4 | 35.9 | -- | -- |
| 112 |  Ras Al Khaimah, United Arab Emirates | 52 | 24.2 | 41.2 | 46.3 | 47.3 | 46.5 | 53.8 | 70.3 | 75 | 63.1 | 65 | 38.4 | 51.6 | 55.2 | -- | -- | -- | -- | -- |
| 113 | Raurkela, India | 51.9 | 78.4 | 51.1 | 79.9 | 74.5 | 40.8 | 38.4 | 21 | 30.5 | 29.1 | 44.7 | 80.8 | 52.4 | -- | -- | -- | -- | -- | -- |
| 114 |  Phan, Thailand | 51.9 | 39.2 | 75.6 | 125.4 | 153.1 | 39.8 | 12.4 | 7 | 10.8 | 10 | -- | -- | -- | 24 | 28.5 | 41.6 | -- | -- | -- |
| 115 |  Linfen, China | 51.7 | 89 | 89.6 | 53.7 | 51.1 | 36.8 | 32.7 | 27.3 | 26.8 | 35.7 | 60.2 | 44.3 | 71.8 | 49.1 | 55.5 | 52.5 | 61.7 | 68.2 | 80.6 |
| 116 | Puyang, China | 51.6 | 108.7 | 80.3 | 67.2 | 49.7 | 33.6 | 25.1 | 22.2 | 25.7 | 34.6 | 51.5 | 52.9 | 65.7 | 54.3 | 52.8 | 59.3 | 63.4 | 63.5 | 68.8 |
| 117 | Jalandhar, India | 51.4 | 74.7 | 51.3 | 42.7 | 41 | 40.7 | 35.4 | 29.2 | 32.7 | 31.5 | 52.4 | 104.7 | 80.9 | 46.3 | 58.3 | 52.2 | 41 | 56.4 | -- |
| 118 | Shihezi, China | 51.3 | 186.2 | 143.3 | 45.9 | 18.8 | 16.3 | 16.1 | 14.1 | 15.5 | 14.6 | 23.5 | 36.3 | 84.9 | 57.3 | 55.7 | 57.5 | 63.3 | 61.3 | 60.6 |
| 119 | Panchkula, India | 51.2 | 76.8 | 49.8 | 41.5 | 50.1 | 52.2 | 42.1 | 33 | 44.4 | 45.4 | 51.2 | 59.3 | 60.8 | 59.3 | 48.3 | 42.8 | 45.9 | 56.2 | 52.8 |
| 120 | Jaipur, India | 51.2 | 66.1 | 52.5 | 41 | 42.6 | 37.5 | 32.9 | 29.6 | 36.2 | 28.1 | 49.2 | 108.4 | 92.2 | 54.2 | 56.6 | 43.8 | 50.5 | 67.6 | 88.3 |
| 121 | Xianyang, China | 51.1 | 116.6 | 103.9 | 56.7 | 53.4 | 23.1 | 19.9 | 20.7 | 20.6 | 23.7 | 36.5 | 57.8 | 84.6 | 50.8 | 45.7 | 50.5 | 63.7 | 67.8 | 77.8 |
| 122 | Gharaunda, India | 51 | 84.9 | 49.9 | 24.8 | 30.6 | 45.9 | 34.3 | 21.1 | 26 | 25.6 | 85.7 | 109.2 | 72.9 | 61.7 | 60.3 | -- | -- | -- | -- |
| 123 | Howrah, India | 51 | 110.6 | 71.5 | 50.1 | 41.8 | 30 | 26.6 | 13.5 | 31.3 | 20.5 | 44.6 | 84.5 | 89.1 | 50.5 | 58 | 53.7 | 55.9 | 64.2 | -- |
| 124 | Chiang Rai, Thailand | 50.8 | 38.4 | 80 | 179.3 | 181.8 | 31.9 | 11 | 6.6 | 10 | 8.5 | 9.9 | 23.4 | 31.7 | 21.8 | 27.1 | 36.3 | 37 | -- | -- |
| 125 |  Mangla, Pakistan | 50.7 | 27.6 | 50.9 | 32.2 | 18 | 18.6 | 28.2 | 31.5 | 39.4 | 55.4 | 52.1 | 85.8 | 128.2 | -- | -- | -- | -- | -- | -- |
| 126 | Anyang, China | 50.6 | 90.4 | 83.8 | 63.8 | 52.1 | 30.5 | 21.7 | 22 | 25 | 28.6 | 50.6 | 61.4 | 77.7 | 51 | 50.8 | 61.5 | 70.3 | 72.9 | 81.1 |
| 127 | Pai, Thailand | 50.3 | 29.5 | 57.8 | 145.4 | 157 | 30.1 | 10.4 | 4.5 | 7.5 | 4 | 9 | 7.6 | 24 | 27.1 | 47.1 | 53 | 38.9 | 29.4 | -- |
| 128 | Hebi, China | 50.2 | 90.6 | 79.7 | 59.4 | 49.4 | 32.6 | 23.4 | 23.3 | 25.5 | 34.9 | 53.9 | 60.6 | 67.5 | 52.2 | 51.4 | 58.9 | 62.1 | 55.8 | 64.4 |
| 129 | Yigou, China | 50.2 | 81.1 | 84.5 | 60.7 | 51.8 | 39.1 | 25.7 | 22.8 | 28.7 | 31 | 46.9 | 60.2 | 69.4 | 56.4 | -- | -- | -- | -- | -- |
| 130 | Nagpur, India | 50.2 | 90.4 | 54 | 61.7 | 48.7 | 42.8 | 28.4 | 16.1 | 20.7 | 24.7 | 59.4 | 89.8 | 66.9 | 46.8 | 35.2 | 27.1 | 47.2 | 46.6 | 56.2 |
| 131 |  Hoan Kiem, Vietnam | 50.2 | 86.8 | 73.2 | 59 | 44.5 | 35.6 | 32.8 | 29.5 | 33 | 37.2 | 51 | 74.1 | 62.7 | -- | -- | -- | -- | -- | -- |
| 132 |  Bekasi, Indonesia | 49.9 | 34.1 | 22.9 | 39.6 | 38 | 71.5 | 76.9 | 76.6 | 60.4 | 51.4 | 46.8 | 47.2 | 36.6 | 35.4 | 32.4 | 48.1 | 62.6 | -- | -- |
| 133 | Ahmedabad, India | 49.6 | 63.4 | 71.1 | 59.7 | 55.8 | 49.3 | 36 | 30.8 | 32.4 | 32.5 | 55.6 | 60.3 | 49.5 | 53.3 | 55.1 | 49 | 59 | 76.1 | -- |
| 134 | Shahecheng, China | 49.5 | 82 | 71.7 | 60.8 | 47.5 | 34.1 | 24.3 | 25.1 | 23.9 | 33.5 | 54.5 | 58.7 | 77.4 | 47.7 | 44.1 | -- | -- | -- | -- |
| 135 | Durgapur, India | 49.5 | 81.3 | 85.3 | 63 | 59.6 | 39.7 | 35.3 | 19.7 | 35.1 | 22.9 | 40.4 | 55.3 | 54.9 | 60.5 | 75.8 | -- | -- | -- | -- |
| 136 | Pune, India | 49.4 | 76.6 | 71.2 | 55.5 | 43.7 | 42.8 | 32.3 | 23.9 | 30.4 | 27 | 58.4 | 63.5 | 68.4 | 51.1 | 42.2 | 39.7 | 35.7 | 46.3 | 37 |
| 137 | Ankleshwar, India | 49.3 | 64.6 | 75.3 | 56.6 | 42.7 | 30.3 | 22.3 | 21.3 | 18.2 | 29.7 | 76 | 83.9 | 72.4 | 60.2 | 66.5 | 51.7 | 41.3 | -- | -- |
| 138 | Navi Mumbai, India | 49.3 | 123.2 | 98.8 | 72.6 | 43.4 | 21.8 | 20.6 | 14 | 15.1 | 20.2 | 58.6 | 52.2 | 54.5 | 49.3 | 56 | 52.6 | 61.6 | -- | -- |
| 139 |  Katunje, Nepal | 49.1 | 79.9 | 80.4 | 71.7 | 87.3 | 47.4 | 30.2 | 19.9 | 18.6 | 21.2 | 27.3 | 46.1 | 64.5 | -- | -- | -- | -- | -- | -- |
| 140 | Xinxiang, China | 49 | 91.8 | 76.8 | 59.1 | 48.1 | 32 | 24.5 | 19.5 | 23.6 | 32.4 | 54.6 | 56.4 | 67.3 | 50 | 47.3 | 51.5 | 55.7 | 61.4 | 66.4 |
| 141 | Doburji, India | 49 | 64 | 46.9 | 32 | 46.1 | 42 | 28.5 | 27.8 | 38.2 | 35.4 | 48.7 | 79.7 | 95.3 | 47.2 | -- | -- | -- | -- | -- |
| 142 | Bisikala, India | 48.9 | 94.8 | 84.5 | 70.6 | 115.6 | 32.1 | 24 | 19.5 | 23.8 | 11.3 | 13.5 | 41.3 | 38.7 | -- | -- | -- | -- | -- | -- |
| 143 | Motihari, India | 48.8 | 53.7 | 50.8 | 35.6 | 39.9 | 19.8 | 11.4 | 13.6 | 19.1 | 34.1 | 65.8 | 127.3 | 102 | 69.8 | -- | -- | -- | -- | -- |
| 144 | Remuna, India | 48.8 | 99.3 | 56 | 48.5 | 45.6 | 26 | 25.2 | 13.6 | 16.7 | 13.4 | 51.7 | 83.5 | 89.8 | -- | -- | -- | -- | -- | -- |
| 145 | Changji, China | 48.7 | 156.7 | 142.6 | 50.9 | 20.3 | 16.8 | 13.9 | 12.5 | 12.6 | 11.3 | 23.1 | 37.1 | 84.6 | 51.5 | 49.8 | 53.5 | 48.2 | 55 | 57.6 |
| 146 | Yanliang, China | 48.6 | 96.1 | 80 | 55.4 | 56.7 | 27 | 22.6 | 22.2 | 21.6 | 25.6 | 39.3 | 57.6 | 86.8 | 43 | 41 | 51 | 45.5 | -- | -- |
| 147 | Heze, China | 48.5 | 105.5 | 69.6 | 55.4 | 43.4 | 29.5 | 24.8 | 18.4 | 23.4 | 34 | 54.1 | 49.4 | 71.1 | 47.2 | 48.5 | 54.2 | 59.7 | 60.1 | 70 |
| 148 | Gorakhpur, India | 48.5 | 58.8 | 36.7 | 43.7 | 39.3 | 51.1 | 43.8 | 32.4 | 34.3 | 37.1 | 56.6 | 85.6 | 57.6 | 42.1 | 67 | -- | -- | -- | -- |
| 149 | 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 | -- | -- | -- | -- |
| 150 | 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 |
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