Toggle navigation
Places
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
Europe
Switzerland
St. Gallen
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
St. Gallen
St. Gallen, St. Gallen
2025-01-12 03:00
AQI (China)
Excellent
20
Pollutants
|
Pollens
PM2.5
μg/m³
14
PM10
μg/m³
15.5
NO2
μg/m³
28.6
CO
μg/m³
420
O3
μg/m³
7.7
Alder
0
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
-5℃
91%
3 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
Allergy Risk
PM2.5
PM10
NO2
CO
O3
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
Data Sources
https://www.eea.europa.eu
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
AQI
AQI
O3
PM2.5
PM10
NO2
SO2
Allergy Risk
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
2
2
2
1
2
3
1
3
2
2
1
1
1
2
4
1
2
2
1
2
1
3
2
2
2
5
1
2
1
--
2
3
2
2
2
2
--
2
2
2
2
2
2
1
3
2
3
2
3
2
2
2
1
2
2
1
5
2
1
10
1
1
2
2
1
1
2
1
1
6
2
1
2
3
3
1
2
2
5
1
10
1
1
1
1
1
3
4
1
1
1
2
+
−
Leaflet
| ©
OpenStreetMap
contributors
Cities Nearby
St. Gallen
AQI 20
Gaiserwald
AQI 20
Mörschwil
AQI 20
Appenzell
AQI 8
Rorschach
AQI 22
Egnach
AQI 20
Heiden
AQI 22
Schwende-Rüte
AQI 7
Romanshorn
AQI 20
Walzenhausen
AQI 22
Mogelsberg
AQI 10
Air Matters © 2025