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Air quality in Uusimaa

Air quality index (AQI⁺) and PM2.5 air pollution in Uusimaa • 14:06, Sep 01

Helsingin seudun verkko (HSY)Helsinki Region Environmental ServicesIlmatieteen Laitos - The Finnish Meteorological InstituteMikkoLohjan verkkoFinnish Meteorological Institute
Helsingin seudun verkko (HSY)Helsinki Region Environmental ServicesIlmatieteen Laitos - The Finnish Meteorological InstituteMikkoLohjan verkkoFinnish Meteorological Institute

Live most polluted city ranking

Real-time Uusimaa most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Finland

Helsinki

34

2
The national flag of Finland

Kallio

34

3
The national flag of Finland

Mellunkylae

29

4
The national flag of Finland

Vantaa

27

5
The national flag of Finland

Jaervenpaeae

26

6
The national flag of Finland

Lohja

26

7
The national flag of Finland

Porvoo

26

8
The national flag of Finland

Kaarela

25

9
The national flag of Finland

Espoo

24

10
The national flag of Finland

Otaniemi

22

Live cleanest city ranking

Real-time Uusimaa cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Finland

Otaniemi

22

2
The national flag of Finland

Espoo

24

3
The national flag of Finland

Kaarela

25

4
The national flag of Finland

Jaervenpaeae

26

5
The national flag of Finland

Lohja

26

6
The national flag of Finland

Porvoo

26

7
The national flag of Finland

Vantaa

27

8
The national flag of Finland

Mellunkylae

29

9
The national flag of Finland

Helsinki

34

10
The national flag of Finland

Kallio

34

Wildfires in Uusimaa

Real-time information

Active fires

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IQAir Healthpro Plus XE in a living room
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Do air purifiers remove odors or just reduce them?

Dense forest burning.
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Wildfire Map Spotlight: Austin Fire, Oregon

Evening view of Portland.
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September 1, 2026: Portland among top 10 most polluted cities in the world

Which is the most polluted city in Uusimaa?