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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4721 |  Heath Springs USA | 8.3 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4722 | Katy USA | 8.3 | 9.4 | 11.1 | -- | -- | -- | -- | -- | -- |
| 4723 | McAllen USA | 8.3 | 9.9 | 10.6 | 11.1 | 13.6 | -- | -- | -- | -- |
| 4724 | Seabrook USA | 8.3 | 7.9 | 8.7 | 10 | 8.9 | 8.1 | 7.2 | 7.1 | 7.2 |
| 4725 | Fort Hunt USA | 8.3 | 7.7 | 11.9 | -- | -- | -- | -- | -- | -- |
| 4726 | Clarkston USA | 8.3 | 10.3 | 8.7 | 9.3 | 10.6 | -- | 9.2 | 10.3 | 15.8 |
| 4727 | Conconully USA | 8.3 | 6.9 | 15.2 | 11.6 | -- | -- | -- | -- | -- |
| 4728 | Grandview USA | 8.3 | 8.5 | 15.1 | -- | -- | -- | -- | -- | -- |
| 4729 | Omak USA | 8.3 | 7.1 | 11.1 | 8.5 | 13.1 | 11.9 | 8.7 | 12.7 | 11.6 |
| 4730 | Otis Orchards-East Farms USA | 8.3 | 6.9 | 11.5 | 13.4 | 13.5 | -- | -- | -- | -- |
| 4731 | Vienna USA | 8.3 | 7.7 | -- | -- | -- | -- | -- | -- | -- |
| 4732 |  Brighton Australia | 8.2 | 8.4 | 7 | -- | -- | -- | -- | -- | -- |
| 4733 | Bunbury Australia | 8.2 | 5.3 | 5 | 3.9 | 2.5 | -- | 8.9 | 10.1 | -- |
| 4734 |  Hallein Austria | 8.2 | 7.7 | 9.5 | 11.1 | 12.9 | -- | -- | -- | -- |
| 4735 | Salzburg Austria | 8.2 | 9 | 8.3 | 9.3 | 9.7 | 9.8 | -- | -- | -- |
| 4736 |  Brussels Belgium | 8.2 | 8.9 | 9.8 | 10.6 | 11 | 9.3 | 14.1 | 14.1 | 14.9 |
| 4737 | Sint-Lambrechts-Woluwe Belgium | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4738 | Brunehault Belgium | 8.2 | 8 | 6 | -- | -- | -- | -- | -- | -- |
| 4739 |  Drayton Valley Canada | 8.2 | 9.4 | 10.1 | 6.7 | 8 | 5.6 | 7.5 | -- | -- |
| 4740 | Elk Island Canada | 8.2 | 8.9 | 14.6 | -- | -- | -- | -- | -- | -- |
| 4741 | Lac la Biche Canada | 8.2 | 8.8 | 13.2 | 6 | 8.2 | -- | -- | -- | -- |
| 4742 | Smoky Heights Canada | 8.2 | 6.4 | 14.3 | -- | -- | -- | -- | -- | -- |
| 4743 | Fort Smith Canada | 8.2 | 9.3 | 24.4 | -- | -- | -- | -- | -- | -- |
| 4744 | Brampton Canada | 8.2 | 6.8 | 10.7 | 7.4 | 7.4 | 6.8 | 6.7 | 7.5 | 7.6 |
| 4745 | Milton Canada | 8.2 | 7.2 | 9.1 | -- | -- | -- | -- | -- | -- |
| 4746 | Owen Sound Canada | 8.2 | 6.5 | 11.2 | -- | -- | -- | -- | -- | -- |
| 4747 | Scarborough Canada | 8.2 | 7.1 | -- | -- | -- | -- | -- | -- | -- |
| 4748 | Toronto Canada | 8.2 | 6.9 | 10.8 | 8.5 | 9.3 | 7 | 7.4 | 7.8 | 7.5 |
| 4750 |  Salaise-sur-Sanne France | 8.2 | 9.8 | 10 | 7.6 | 10.4 | 9.2 | 10 | 14.7 | 13 |
| 4751 | Lorient France | 8.2 | 8.1 | 9.1 | 16.2 | 9.6 | 8.5 | -- | -- | -- |
| 4752 | Montpellier France | 8.2 | 8.9 | 8.7 | 12 | 7.5 | 7.9 | -- | -- | -- |
| 4754 |  Aalen Germany | 8.2 | 7.9 | 7.7 | 9.2 | 9.7 | 8.1 | -- | -- | -- |
| 4755 | Elsterwerda Germany | 8.2 | 9.5 | 8.2 | 8.8 | 11.3 | 10.5 | 11.7 | 16.2 | 16.1 |
| 4756 | Wittenberge Germany | 8.2 | 8.6 | 7.6 | 8.7 | 9.5 | 8.8 | 10.5 | 13.7 | 13.6 |
| 4757 | Seevetal Germany | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4758 | Bielefeld Germany | 8.2 | 8.8 | 8.8 | -- | -- | -- | -- | -- | -- |
| 4759 | Koln Germany | 8.2 | 8.7 | 8.7 | 10.5 | 9.9 | 9.4 | 12.8 | 15.3 | 14.8 |
| 4760 | Mulheim Germany | 8.2 | 8.7 | 8.8 | 12 | 10.8 | -- | -- | -- | -- |
| 4761 | Nettetal Germany | 8.2 | 8.8 | 9.8 | 12.6 | 12.2 | 11.9 | -- | -- | -- |
| 4762 |  Pelabuhanratu Indonesia | 8.2 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4763 |  Athlone Ireland | 8.2 | 7.8 | 6.5 | 8.1 | 7.2 | -- | -- | -- | -- |
| 4764 |  Locri Italy | 8.2 | 8.8 | 10.3 | -- | -- | -- | -- | -- | -- |
| 4765 | Chiavari Italy | 8.2 | 8.4 | 10.4 | -- | -- | -- | -- | -- | -- |
| 4766 |  Takahama Japan | 8.2 | 7 | 7.9 | 7.5 | 7.6 | 9.6 | 11.8 | 12.7 | 12.4 |
| 4767 | Katori Japan | 8.2 | 7.3 | 7.9 | 7.5 | 7.2 | 7.3 | 8.4 | 8.4 | 8.1 |
| 4768 | Shimosakuma Japan | 8.2 | 7.3 | 8.3 | -- | -- | -- | -- | -- | -- |
| 4769 | Sodegaura Japan | 8.2 | 7.3 | 7.6 | 7.5 | 7.8 | 8.6 | 9.7 | 10.9 | 11.5 |
| 4770 | Haramachi Japan | 8.2 | 7.5 | -- | -- | -- | -- | -- | -- | -- |
| 4771 | Numata Japan | 8.2 | 7.3 | 8.1 | 8.2 | 7.9 | 10.8 | 11.8 | 13.1 | 12.6 |
| 4772 | Nakano Japan | 8.2 | 7.3 | -- | -- | -- | -- | -- | -- | -- |
