WorldArrow icon
Arrow iconSt. Gallen

Air quality in St. Gallen

Air quality index (AQI⁺) and PM2.5 air pollution in St. Gallen • 16:33, Sep 17

Luftqualität in der Ostschweiz und in LiechtensteinIQAir GlobalmarcoABThomas VetterAnonymous contributor
Luftqualität in der Ostschweiz und in LiechtensteinIQAir GlobalmarcoABThomas VetterAnonymous contributor

Live most polluted city ranking

Real-time St. Gallen most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Switzerland

St. Gallen

38

2
The national flag of Switzerland

Grabs

31

3
The national flag of Switzerland

Steinach

28

4
The national flag of Switzerland

Oberriet

22

5
The national flag of Switzerland

Thal

22

6
The national flag of Switzerland

Walenstadt

22

7
The national flag of Switzerland

Wattwil

17

Live cleanest city ranking

Real-time St. Gallen cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Switzerland

Wattwil

17

2
The national flag of Switzerland

Oberriet

22

3
The national flag of Switzerland

Thal

22

4
The national flag of Switzerland

Walenstadt

22

5
The national flag of Switzerland

Steinach

28

6
The national flag of Switzerland

Grabs

31

7
The national flag of Switzerland

St. Gallen

38

Wildfires in St. Gallen

Real-time information

Active fires

--

Forest fire.
external link icon

Wildfire Map Spotlight: Dome Fire, Yosemite National Park, California

external link icon

September 17, 2026: Beijing among top 10 most polluted cities in the world

Forest fire
external link icon

Wildfire Map Spotlight: Three Queens and King Fires, Washington

Which is the most polluted city in St. Gallen?