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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1905 |  Higashitamagawacho Japan | 8.7 | 7.4 | -- | -- | -- | -- | -- | -- | -- |
| 1906 | Yasugi Japan | 8.7 | 7.7 | 9.4 | 8.9 | 8.8 | 9.3 | 10 | -- | -- |
| 1907 | Fuji Japan | 8.7 | 7.8 | 8.5 | 8.3 | 9.2 | -- | 10 | 10.5 | 10.4 |
| 1908 | Chofu Japan | 8.7 | 7.9 | 8.4 | 7.8 | 7.8 | 9.3 | 11 | 11.8 | 10.7 |
| 1909 | Fuchu Japan | 8.7 | 7.6 | 8.2 | 7.6 | 7.7 | 10.7 | 12.2 | 13.6 | 12.7 |
| 1910 | Machida Japan | 8.7 | 7.9 | 10.6 | 9 | 8.1 | 8.5 | 9.7 | 11.2 | 12.1 |
| 1911 | Sakaiminato Japan | 8.7 | 7.4 | 8.4 | 8 | 8.5 | 8.9 | 9.3 | -- | -- |
| 1912 | Yonago Japan | 8.7 | 7.3 | 10 | 10.8 | 10.2 | 11.9 | 11.2 | -- | -- |
| 1913 |  Kuching Malaysia | 8.7 | 10.8 | 17.8 | 7.4 | 8.9 | 9.5 | 17.4 | -- | -- |
| 1914 |  Imus Philippines | 8.7 | 12.6 | -- | -- | -- | -- | -- | -- | -- |
| 1915 | Oga Japan | 8.6 | 7.4 | 8.2 | 7.7 | 7.4 | 7.8 | 9.5 | 9.6 | 9.4 |
| 1916 | Ichihara Japan | 8.6 | 7.3 | 8 | 7.8 | 8.5 | 9.6 | 10.9 | 11.5 | 11.6 |
| 1917 | Mobara Japan | 8.6 | 7.5 | 7.8 | 7.6 | 7.3 | 8.1 | 9.3 | 9.5 | 9.4 |
| 1918 | Yanagawa Japan | 8.6 | 8.2 | 9.9 | 11.3 | 12.1 | 11.5 | 13.1 | 13.3 | 14.7 |
| 1919 | Ena Japan | 8.6 | 7.6 | 7.9 | 7.5 | 7.7 | 8.3 | 9.3 | -- | -- |
| 1920 | Kashima-shi Japan | 8.6 | 7.5 | -- | -- | -- | -- | -- | -- | -- |
| 1921 | Marumori Japan | 8.6 | 7.7 | 8.9 | 8.3 | 8.1 | 7.7 | -- | -- | -- |
| 1922 | Tateyamayamada Japan | 8.6 | 7.7 | -- | -- | -- | -- | -- | -- | -- |
| 1923 | Goto Japan | 8.6 | 8.6 | 9.5 | 8.8 | 10.1 | 11.6 | 12.6 | 12.2 | 12.5 |
| 1924 | Ginama Japan | 8.6 | 8.5 | -- | -- | -- | -- | -- | -- | -- |
| 1925 | Hamada Japan | 8.6 | 7.2 | 8.3 | 7.8 | 7.5 | 11.8 | 12.5 | -- | -- |
| 1926 | Unnan Japan | 8.6 | 7.4 | 8.7 | 8.1 | 8.1 | 8.9 | 9.2 | -- | -- |
| 1927 | Iwata Japan | 8.6 | 7.3 | 8 | 7.8 | 8 | -- | 10.1 | 10.3 | 9.7 |
| 1928 | Kakegawa Japan | 8.6 | 7.1 | 8 | 7.6 | 8 | -- | 9.6 | 9.7 | 10.3 |
| 1929 | Sakata Japan | 8.6 | 8 | 9 | 8.3 | 8.5 | 8.4 | 9.4 | 8.3 | 8.5 |
| 1930 |  Krajan Satu Indonesia | 8.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1931 | Tarakan Indonesia | 8.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1932 | Yurihonjo Japan | 8.5 | 6.7 | 8.1 | 7.4 | 7 | 7.4 | 9.1 | 9.2 | 8.4 |
| 1933 | Nado Japan | 8.5 | 7.7 | -- | -- | -- | -- | -- | -- | -- |
| 1934 | Sosa Japan | 8.5 | 7.7 | 8.2 | 8.3 | 13.5 | 11.8 | 11.8 | 12.1 | 12 |
| 1935 | Kumakogen Japan | 8.5 | 6.3 | 7.8 | 8.2 | 7.3 | 8.1 | 8.2 | 8.4 | 8.3 |
| 1936 | Kamiokimachi Japan | 8.5 | 7.9 | 7 | -- | -- | -- | -- | -- | -- |
| 1937 | Nishiwaki Japan | 8.5 | 6.3 | 7.6 | 7.9 | 8 | 9.5 | 11 | 11.5 | 11.3 |
| 1938 | Midoridai Japan | 8.5 | 5.9 | -- | -- | -- | -- | -- | -- | -- |
| 1939 | Mukaiawagasaki Japan | 8.5 | 5.9 | -- | -- | -- | -- | -- | -- | -- |
| 1940 | Morioka Japan | 8.5 | 8.2 | 9.4 | 8.3 | 8 | 8 | 9.9 | 10.3 | 12.8 |
| 1941 | Tonosho Japan | 8.5 | 6.9 | 7.8 | 7.9 | -- | -- | -- | -- | -- |
| 1942 | Kami Japan | 8.5 | 6.9 | 7.9 | 8.1 | 7.6 | 9.1 | 9.3 | -- | -- |
| 1943 | Shima Japan | 8.5 | 6.6 | 6.9 | 6.7 | 6.4 | 6.7 | 8.4 | 9.5 | 15.2 |
| 1944 | Higashimatsushima Japan | 8.5 | 7.3 | 8.4 | 7.7 | 7.7 | 8.4 | 9.1 | -- | -- |
| 1945 | Natori Japan | 8.5 | 7.9 | 9 | 8 | 9.2 | 10.1 | 11.6 | 11.1 | 11.2 |
| 1946 | Shiogama Japan | 8.5 | 7.3 | 7.8 | 7.4 | 7.8 | 7.3 | -- | -- | -- |
| 1947 | Saikai Japan | 8.5 | 8.8 | 9 | 8.7 | 9.6 | 10.4 | 10.9 | -- | -- |
| 1948 | Niimi Japan | 8.5 | 6.6 | 8 | 7.6 | 7 | 7.2 | 8.6 | 9.3 | 9.1 |
| 1949 | Karatsu Japan | 8.5 | 8.4 | 9.8 | 9.5 | 9.1 | 10.9 | 13.9 | 12.9 | 13.4 |
| 1950 | Matsue Japan | 8.5 | 7.1 | 8.3 | 7.8 | 7.9 | 9.4 | 10.8 | 11.8 | 12.7 |
| 1951 | Shizuoka Japan | 8.5 | 7 | 7.9 | 7.3 | 7.8 | -- | 9.4 | 10.6 | 9.8 |
| 1952 | Kanuma Japan | 8.5 | 7.9 | 7.7 | 8 | 7.4 | -- | 9.1 | 9.9 | 9.6 |
| 1953 | Yaita Japan | 8.5 | 7.7 | 8.7 | 7.8 | 7.5 | 7.6 | 9.3 | 10.3 | 10 |
| 1954 | Yonezawa Japan | 8.5 | 7.6 | 8.2 | 7.4 | 8 | 7.7 | 8.2 | 8.7 | 8.3 |
