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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2105 |  Nasushiobara Japan | 6.8 | 5.9 | 6.1 | 6.7 | 6.3 | 7.2 | 8.3 | 8.5 | 8.6 |
| 2106 | Oyabe Japan | 6.8 | 5.9 | 6.5 | 6.2 | 6.7 | 7.5 | 8.8 | 9.4 | 8.9 |
| 2107 | Takizawa Japan | 6.7 | 6.4 | 7.1 | 6.7 | 7.8 | 11 | 13.3 | 13 | 12.3 |
| 2108 | Kurihara Japan | 6.7 | 6.1 | 7.2 | 6.3 | 6.8 | 7 | 8.3 | 8.4 | 8 |
| 2109 | Nago Japan | 6.7 | 8.2 | 9.8 | 8.6 | 7.5 | 8.2 | 8.9 | 9.6 | 8.8 |
| 2110 |  Shchuchinsk Kazakhstan | 6.7 | 7.5 | 3 | 2.6 | 72.5 | -- | -- | -- | -- |
| 2111 |  Mamuju Indonesia | 6.6 | 3.3 | 3.7 | 4 | 3 | -- | -- | -- | -- |
| 2112 | Hakodate Japan | 6.6 | 6.3 | 7.2 | 6.5 | 6.7 | 6.7 | 8.8 | 8.7 | 8.3 |
| 2113 | Kitami Japan | 6.6 | 6.9 | 7.7 | 6.4 | 7.3 | 6.8 | 6.5 | -- | -- |
| 2114 |  Nazareth Israel | 6.5 | 17 | 18.2 | 20.5 | 19.3 | -- | -- | -- | -- |
| 2115 | Tsukisamuchūodori Japan | 6.5 | 6.3 | -- | -- | -- | -- | -- | -- | -- |
| 2116 | Obihiro Japan | 6.4 | 6.1 | 6.6 | 5.8 | 6.6 | 5.6 | 5.9 | -- | -- |
| 2117 | Sapporo Japan | 6.4 | 6.2 | 7 | 6.5 | 6.8 | 7 | 8.1 | 7.3 | 8.4 |
| 2118 | Oshu Japan | 6.4 | 5.9 | 7.2 | 10.8 | 9.4 | 9.3 | 10.8 | 10.9 | 10.5 |
| 2119 |  Nyingchi China | 6.3 | 6.2 | 5.5 | 5.7 | 8.5 | 7.3 | 8.1 | 7.8 | 11.8 |
| 2120 | Kuji Japan | 6.3 | 6.2 | 6.9 | 6.3 | 11.5 | 10.4 | 12.4 | 11.5 | 11 |
| 2121 | Minokamo Japan | 6.2 | 7 | 8.2 | 8.8 | 8.8 | 9 | 10.7 | 10.9 | 10.7 |
| 2122 | Kamaishi Japan | 6.2 | 5.6 | 6.4 | 7 | 6.9 | 7.1 | 8.4 | 8.9 | 10.8 |
| 2123 | Kushiro Japan | 6 | 5.5 | 6.7 | 5.4 | 5.5 | -- | -- | -- | -- |
| 2124 | Tomakomai Japan | 6 | 5.9 | 6.8 | 6.5 | 7 | 7.6 | 9.7 | 9.6 | 11.9 |
| 2125 | Okinawa Japan | 5.7 | 7.3 | 7.9 | 5.6 | 6 | 6.7 | 6.2 | -- | -- |
| 2126 |  Calamba Philippines | 5.7 | 9.2 | 8.2 | 12.4 | 13.7 | 5.7 | 4 | 9.3 | -- |
| 2127 | Miyako Japan | 5.6 | 7.7 | 7.8 | 7.3 | 7.7 | -- | -- | -- | -- |
| 2128 | Ngari China | 5.3 | 6 | 5.5 | 5.6 | 7.2 | 6.2 | 6.9 | 14.1 | 13 |
| 2129 |  Mest'ia Georgia | 5.1 | 4.8 | -- | -- | -- | -- | -- | -- | -- |
| 2130 | Kokshetau Kazakhstan | 3 | 11.6 | 15.7 | 15.9 | 13.1 | -- | -- | -- | -- |
| 2131 | Zhezqazghan Kazakhstan | 2.8 | 2.3 | 4.3 | 3 | 3.5 | -- | -- | -- | -- |
