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
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1960 |  Muan South Korea | 13.1 | 9 | 10.1 | 18.1 | 17.7 | -- | -- | -- | -- |
| 1961 |  Krabi Thailand | 13.1 | 13 | -- | -- | -- | -- | -- | -- | -- |
| 1962 | Khlong Nueng Thailand | 13.1 | 14.2 | 17.8 | 18.2 | -- | -- | -- | -- | -- |
| 1963 |  Samsun Turkey | 13.1 | 13 | 13.4 | 15.3 | 20.7 | 17.1 | 14 | -- | -- |
| 1964 |  Chernivtsi Ukraine | 13.1 | 13.8 | 15.1 | 27.3 | -- | -- | -- | -- | -- |
| 1965 |  Niland USA | 13.1 | 6.6 | 9 | 11.4 | 6.1 | -- | -- | -- | -- |
| 1966 | San Pasqual USA | 13.1 | 10.7 | -- | -- | -- | -- | -- | -- | -- |
| 1967 |  Niel Belgium | 13 | 16 | -- | -- | -- | -- | -- | -- | -- |
| 1968 | Sint-Kruis Belgium | 13 | 16.2 | -- | -- | -- | -- | -- | -- | -- |
| 1969 |  Aba China | 13 | 11 | 12.2 | 11.8 | 15 | 14.3 | 14.7 | 11.3 | 9.1 |
| 1970 |  Nicosia Cyprus | 13 | 15.2 | 14.4 | 16.4 | 14.8 | 15.5 | 19.2 | 17.4 | 17.9 |
| 1971 |  Pardubice Czech Republic | 13 | 12.1 | 11.7 | 12.8 | 13.8 | 12.5 | 14.7 | 19.4 | 18.3 |
| 1972 |  Saint-Denis France | 13 | 13.8 | 12.8 | 14.7 | 17.4 | 15.9 | 16.3 | 17.6 | 19.5 |
| 1973 |  Guatemala City Guatemala | 13 | 18.9 | 18.7 | 18.5 | 19.5 | -- | -- | -- | -- |
| 1974 |  Hernádszurdok Hungary | 13 | 13.3 | 11 | 12 | 14.5 | 13.1 | -- | -- | -- |
| 1975 |  Nakatsu Japan | 13 | 11.8 | 12.1 | 12.6 | 11.9 | 12.7 | 14 | 14.9 | 15.5 |
| 1976 | Asakuchi Japan | 13 | 12.6 | 14.6 | 14.4 | 14 | 15.5 | 16.1 | 18 | 17 |
| 1977 | Bizen Japan | 13 | 10.8 | 11.9 | 11.5 | 10.2 | 10.8 | 13.4 | 13.7 | 13.5 |
| 1978 |  Valle de Santiago Mexico | 13 | 18.2 | 14.7 | -- | -- | -- | -- | -- | -- |
| 1979 | Ajalpan Mexico | 13 | 24.3 | 24.3 | 28.1 | -- | -- | -- | -- | -- |
| 1980 |  Port Harcourt Nigeria | 13 | 68.9 | 30.1 | 44 | 51.6 | -- | -- | -- | -- |
| 1981 |  Legnica Poland | 13 | 10.8 | 14.7 | 18.3 | 16.4 | 17 | -- | -- | -- |
| 1982 |  Iasi Romania | 13 | 14.8 | 14.1 | 17.3 | 20.6 | -- | 22.4 | 27 | -- |
| 1983 | Tomesti Romania | 13 | 13.9 | 12.1 | -- | -- | -- | -- | -- | -- |
| 1984 |  Pretoria South Africa | 13 | 19.6 | 21.1 | 21.7 | 21.6 | 24.4 | 25.5 | -- | -- |
| 1985 | Hwasun South Korea | 13 | 10.8 | 10.2 | 19.4 | 17.3 | -- | -- | -- | -- |
| 1986 | Prachuap Khiri Khan Thailand | 13 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1987 | Sorgun Turkey | 13 | 13 | 14.5 | 14.3 | 17 | 12.8 | 14.4 | -- | -- |
| 1988 | Vyshhorod Ukraine | 13 | 9.6 | 13.3 | 9.8 | -- | -- | -- | -- | -- |
| 1989 |  Con Dao Vietnam | 13 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1990 |  Tirana Albania | 12.9 | 14.5 | 16.7 | 14.5 | 12.5 | 16 | -- | -- | -- |
| 1991 |  Gries Austria | 12.9 | 13.5 | -- | -- | -- | -- | -- | -- | -- |
| 1992 | Oostrozebeke Belgium | 12.9 | 11.3 | 12.8 | 14.1 | 15.2 | 13.9 | 15.1 | 17.2 | 17.3 |
| 1993 |  Ribeirao Preto Brazil | 12.9 | 19.9 | 13 | 13 | 11.8 | 7.2 | 8.2 | 11.3 | 5.9 |
| 1994 |  San Salvador El Salvador | 12.9 | 17.3 | 19.2 | 13.4 | 12 | -- | -- | -- | -- |
| 1995 |  Bogenhausen Germany | 12.9 | 19.8 | -- | -- | -- | -- | -- | -- | -- |
| 1996 | Emmering Germany | 12.9 | 20.9 | -- | -- | -- | -- | -- | -- | -- |
| 1997 | Kecskemét Hungary | 12.9 | 14.1 | 11.2 | 16 | 12.3 | 11.9 | 14.6 | -- | -- |
| 1998 |  Manado Indonesia | 12.9 | 12.1 | 12 | 14.5 | 11.7 | -- | -- | -- | -- |
| 1999 | Saijo Japan | 12.9 | 12.3 | 12.2 | 11.7 | 11.7 | 12.5 | 14.3 | 14.8 | 14.7 |
| 2000 | Fukuyama Japan | 12.9 | 10.3 | 11.7 | 11.1 | 11.1 | 11.4 | 12.9 | 14.2 | 15.4 |
| 2001 | Higashihonjo Japan | 12.9 | 9.5 | -- | -- | -- | -- | -- | -- | -- |
| 2002 | Villahermosa Mexico | 12.9 | 12.6 | -- | -- | -- | -- | -- | -- | -- |
| 2003 |  Uithoorn Netherlands | 12.9 | 19.4 | -- | -- | -- | -- | -- | -- | -- |
| 2004 | Hulst Netherlands | 12.9 | 17.4 | -- | -- | -- | -- | -- | -- | -- |
| 2005 | Szczecin Poland | 12.9 | 14.5 | 12.3 | 12.6 | 13.4 | 13 | 15.6 | 18.6 | 19.2 |
| 2006 | Craiova Romania | 12.9 | 12 | 15.2 | 18.4 | 21 | -- | -- | -- | -- |
| 2007 |  Ryazan Russia | 12.9 | 11.7 | 11.9 | 14.4 | -- | -- | -- | -- | -- |
| 2008 |  Trencin Slovakia | 12.9 | 13.5 | 12.1 | 14.1 | 15.1 | 15.6 | 17.9 | 19.8 | 13.2 |
| 2009 | Cadca Slovakia | 12.9 | 15.4 | 15.1 | -- | -- | -- | -- | -- | -- |
