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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1955 |  Papagou Greece | 6.8 | 8 | 12.8 | 14.6 | 14.5 | 14.2 | 15.5 | -- | -- |
| 1956 | Aktaio Greece | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1957 |  Naas Ireland | 6.8 | 6.7 | 5.9 | 7 | 7.1 | -- | -- | -- | -- |
| 1958 |  Iglesias Italy | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1959 |  Sjolyststranda Norway | 6.8 | 8.2 | 7.4 | -- | -- | -- | -- | -- | -- |
| 1960 | Skien Norway | 6.8 | 7.8 | 7.1 | -- | -- | -- | -- | -- | -- |
| 1961 |  Poprad Slovakia | 6.8 | 8.1 | 8 | 6 | 8.3 | 9.5 | 11.2 | -- | -- |
| 1962 |  Alonsotegi Spain | 6.8 | 6.3 | 6.4 | 10.9 | 2.3 | -- | -- | -- | -- |
| 1963 | Berga Spain | 6.8 | 5.7 | -- | -- | -- | -- | -- | -- | -- |
| 1964 | Tudela Spain | 6.8 | 6.4 | 7.3 | 8.8 | 7.6 | 8.4 | 7.3 | -- | -- |
| 1965 | El Grao de Castellon Spain | 6.8 | 5.5 | 5 | 11 | 15.8 | -- | -- | -- | -- |
| 1966 |  Rhaezuens Switzerland | 6.8 | 18.7 | 7.2 | 10.8 | 10.7 | -- | -- | -- | -- |
| 1967 |  Carlisle United Kingdom | 6.8 | 8.1 | 7.8 | -- | -- | -- | -- | -- | -- |
| 1968 | Heath Charnock United Kingdom | 6.8 | 6.3 | 7.9 | -- | -- | -- | -- | -- | -- |
| 1969 | Heavitree United Kingdom | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1970 | Horley United Kingdom | 6.8 | 6.8 | -- | -- | -- | -- | -- | -- | -- |
| 1971 | Dyserth United Kingdom | 6.8 | 5.6 | 6.6 | -- | -- | -- | -- | -- | -- |
| 1972 |  Bad Ischl Austria | 6.7 | 6.3 | 6.3 | 7.4 | 7.8 | 7.8 | 8.5 | 10.4 | 8.7 |
| 1973 |  Mariehamn Finland | 6.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1974 |  Herbolzheim Germany | 6.7 | 5.2 | 8.4 | 10.4 | -- | -- | -- | -- | -- |
| 1975 | Aachen Germany | 6.7 | 7.6 | 8 | 10.1 | 9.2 | 8.8 | -- | -- | -- |
| 1976 | Landau in der Pfalz Germany | 6.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1977 | Flensburg Germany | 6.7 | 6.6 | 7.3 | 9 | 9.8 | 9.1 | 10.9 | 12.2 | 10.4 |
| 1978 | Bandon Ireland | 6.7 | 4.6 | 4.9 | 9.8 | 12.9 | -- | -- | -- | -- |
| 1979 | Genoa Italy | 6.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1980 |  Swieqi Malta | 6.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1981 |  Heerlen Netherlands | 6.7 | 7.2 | 6.7 | 9.5 | 9.4 | 8.3 | 9.7 | 10.6 | 9.1 |
| 1982 |  Yekaterinburg Russia | 6.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1983 | Arteixo Spain | 6.7 | 7 | 8 | 7.5 | 8.6 | -- | -- | -- | -- |
| 1984 | Santiago de Compostela Spain | 6.7 | 6.5 | 6.4 | 8.2 | 8.7 | 9 | 8.7 | 10.3 | 12.7 |
| 1985 | Caravaca de la Cruz Spain | 6.7 | 17.8 | 10.4 | 9.6 | 8 | 9.4 | -- | -- | -- |
| 1986 |  Gothenburg Sweden | 6.7 | 6.4 | -- | -- | -- | -- | -- | -- | -- |
| 1987 |  Uman' Ukraine | 6.7 | 5.9 | 5.7 | 6.7 | -- | -- | -- | -- | -- |
| 1988 | Flackwell Heath United Kingdom | 6.7 | 5.4 | 10.3 | -- | -- | -- | -- | -- | -- |
| 1989 | Sowerby Bridge United Kingdom | 6.7 | 5.6 | -- | -- | -- | -- | -- | -- | -- |
| 1990 |  Viroinval Belgium | 6.6 | 4.1 | 4.6 | 5.2 | 6.7 | 4.8 | 8.5 | 8.9 | 7.6 |
| 1991 |  Tartu Estonia | 6.6 | 6.4 | 5.4 | 5.5 | 6.8 | 6.3 | 7.6 | -- | -- |
| 1992 |  Bastia France | 6.6 | 7.7 | 7.4 | 8.1 | 6.6 | 9 | -- | -- | -- |
| 1993 | Bargemon France | 6.6 | 7.4 | -- | -- | -- | -- | -- | -- | -- |
| 1994 | Schwabische Alb Germany | 6.6 | 5.8 | 6.1 | 7 | 6.3 | 6.5 | 7.7 | -- | -- |
| 1995 | Segundo Ensanche Spain | 6.6 | 11.3 | 9.9 | 9.5 | 7.3 | -- | -- | -- | -- |
| 1996 | Boryspil' Ukraine | 6.6 | 7.2 | 7 | 7.9 | -- | -- | -- | -- | -- |
| 1997 | Harrogate United Kingdom | 6.6 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1998 | Redcar United Kingdom | 6.6 | 7.1 | 4.9 | 8.3 | 11.2 | -- | -- | -- | -- |
| 1999 | Wetherby United Kingdom | 6.6 | 5.2 | 7.5 | 12.1 | -- | -- | -- | -- | -- |
| 2000 | Bangor United Kingdom | 6.6 | 5.8 | 6.6 | 7.9 | 9.8 | 8.2 | 10.7 | -- | -- |
| 2001 | Pontypridd United Kingdom | 6.6 | 6.1 | 5.1 | 11.4 | 8.1 | -- | -- | -- | -- |
| 2002 | Kaarela Finland | 6.5 | 6 | 3.7 | 6 | -- | -- | -- | -- | -- |
| 2003 | Furth Germany | 6.5 | 6.3 | 5.7 | 6.9 | 6.7 | -- | -- | -- | -- |
| 2004 | Luder Germany | 6.5 | 7.9 | 7 | 7.1 | 7.7 | 7.3 | 8.3 | 10.1 | 8.7 |
