Pollution, world city rankings 2026

Top 30 cities

1. Helsinki, Finland · 12.5
2. Reykjavik, Iceland · 15.5
3. Vienna, Austria · 15.7
4. Osijek, Croatia · 16.8
5. The Hague (Den Haag), Netherlands · 17.9
6. Stockholm, Sweden · 18.1
7. Tallinn, Estonia · 18.2
8. Groningen, Netherlands · 19.4
9. Eindhoven, Netherlands · 20.7
10. Luxembourg, Luxembourg · 21.2
11. Oslo, Norway · 21.5
12. Gothenburg, Sweden · 22.3
13. Victoria, Canada · 22.5
14. Vilnius, Lithuania · 23.4
15. Mississauga, Canada · 23.5
16. Calgary, Canada · 23.6
17. Ottawa, Canada · 23.7
18. Rotterdam, Netherlands · 23.8
19. Ljubljana, Slovenia · 24
20. Halifax, Canada · 24.3
21. Anchorage, AK, United States · 24.3
22. Leipzig, Germany · 24.4
23. Trondheim, Norway · 24.5
24. Munich, Germany · 24.6
25. Wellington, New Zealand · 24.8
26. Porto, Portugal · 24.8
27. Nanaimo, BC, Canada · 24.8
28. Copenhagen, Denmark · 25.1
29. Vancouver, Canada · 25.2
30. Kaunas, Lithuania · 25.3

Figures are shown in the local currency and come from Numbeo via the JanusHermes data cache; they refresh regularly and are indicative, not quotes.