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 • 03:38, Jun 21

Live most polluted city ranking

Real-time Uusimaa most polluted city ranking

#	Cities	AQI⁺ US
1	Lohja	56
2	Kallio	52
3	Otaniemi	52
4	Helsinki	51
5	Mellunkylae	51
6	Espoo	49
7	Jaervenpaeae	49
8	Kaarela	47
9	Vantaa	47
10	Porvoo	45

Live cleanest city ranking

Real-time Uusimaa cleanest city ranking

#	Cities	AQI⁺ US
1	Porvoo	45
2	Kaarela	47
3	Vantaa	47
4	Espoo	49
5	Jaervenpaeae	49
6	Helsinki	51
7	Mellunkylae	51
8	Kallio	52
9	Otaniemi	52
10	Lohja	56

Wildfire on a mountain

Wildfire Map Spotlight: Kane Springs Fire and Grapevine Fire, Nevada

Wildfire Map Spotlight: Shore Fire, Riverside County, California

Wildfire Map Spotlight: South Fork Fire, Nebraska

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