Choose another country or region to see content specific to your location and shop online.

Air quality in Uusimaa

Air quality index (AQI⁺) and PM2.5 air pollution in Uusimaa • 05:46, May 19

Live most polluted city ranking

Real-time Uusimaa most polluted city ranking

#	Cities	AQI⁺ US
1	Otaniemi	52
2	Jaervenpaeae	50
3	Kallio	49
4	Mellunkylae	49
5	Helsinki	48
6	Espoo	47
7	Porvoo	43
8	Vantaa	40
9	Kaarela	37
10	Lohja	37

Live cleanest city ranking

Real-time Uusimaa cleanest city ranking

#	Cities	AQI⁺ US
1	Kaarela	37
2	Lohja	37
3	Vantaa	40
4	Porvoo	43
5	Espoo	47
6	Helsinki	48
7	Kallio	49
8	Mellunkylae	49
9	Jaervenpaeae	50
10	Otaniemi	52

Smoke rising from a dense forest

Wildfire map spotlight: Southwest Kansas wildfires

May 19, 2026: Kathmandu among top 10 most polluted cities in the world

May 18, 2026: Johannesburg among top 10 most polluted cities in the world

Which is the most polluted city in Uusimaa?

globe background

Connect With IQAir

Get exclusive articles, product updates, tips, and occasional offers delivered to your inbox. You can unsubscribe at any time.

View Privacy Policy

Privacy Policy© 2026 IQAir. All rights reserved