Worst air pollution Bruggen - Sankt Gallen, today and tomorrow
Today (20 September): Air quality in Bruggen is moderate. AQI and PM2.5 are moderate; PM10, NO2, O3, and PM1 are fair; SO2, CO, and HCHO are good. Pollution peaks around 9:00 AM (PM2.5: 40.9/100).
Tomorrow (21 September 2026): Air quality in Bruggen is fair. AQI improves to fair; PM2.5 decreases to fair; PM10 decreases to good; NO2 decreases to good; O3 decreases to good; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 6:00 AM (PM2.5: 20.4/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Bruggen's air quality reflects its western Sankt Gallen position with a legacy textile-industry character, with vehicle traffic on surrounding streets contributing modest local emissions in this valley-adjacent district.
Today - 20 September | Pollution peaks at 09:00
AQI:
Moderate
40.9/100
PM2.5 (fine particles):
Moderate
40.9/100
PM10 (coarse particles):
Fair
23.1/100
NO2 (nitrogen dioxide):
Fair
29.0/100
O3 (ozone):
Fair
23.7/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
1.0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Fair
30.5/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 06:00
AQI:
Fair
20.4/100
PM2.5 (fine particles):
Fair
20.4/100
PM10 (coarse particles):
Good
12.0/100
NO2 (nitrogen dioxide):
Good
14.8/100
O3 (ozone):
Good
17.3/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
10.1/100
Other Landmarks in Sankt Gallen
Sports venues in Sankt Gallen
Frequently Asked Questions
Is air quality bad in Bruggen right now?
On 20 September 2026, overall air quality in Bruggen is moderate. AQI is the main air quality indicator at 40.9/100. Pollution peaks around 9:00 AM (PM2.5: 40.9/100).
Will air quality be worse tomorrow in Bruggen?
On 21 September 2026, air quality conditions in Bruggen will be better than today, with AQI forecast at fair at 20.4/100. Pollution peaks around 6:00 AM (PM2.5: 20.4/100).
When is air pollution at its worst in Bruggen?
On a still winter morning, vehicle traffic and light industry at Bruggen linger in the valley, pushing local readings to their worst point of the year. From spring, conditions steadily pick up in this valley, and summer stays mostly clear aside from a rare ozone spike, with autumn usually just as settled.
Are air quality levels in Bruggen based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 20 September 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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