Worst air pollution Madretsch - Biel/Bienne, today and tomorrow
Today (16 July): Air quality in Madretsch is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 43.3/100).
Tomorrow (17 July 2026): Air quality in Madretsch is fair. AQI worsens to fair; NO2 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 30.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Madretsch's air quality reflects its southern Biel/Bienne position along the Suze river, with legacy industrial character and vehicle traffic contributing modest local emissions in this bilingual city district.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
43.3/100
PM2.5 (fine particles):
Good
11.8/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Fair
20.7/100
O3 (ozone):
Medium
43.3/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Good
14.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
30.9/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Good
19.9/100
O3 (ozone):
Fair
30.9/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
7.9/100
Other Landmarks in Biel/Bienne
Frequently Asked Questions
Is air quality bad in Madretsch right now?
On 16 July 2026, overall air quality in Madretsch is fair. NO2 is the main pollutant at 20.7/100. Pollution peaks around 2:00 PM (O3: 43.3/100).
Will air quality be worse tomorrow in Madretsch?
On 17 July 2026, air quality conditions in Madretsch will be similar to today, with AQI forecast at fair at 30.9/100. Pollution peaks around 3:00 PM (O3: 30.9/100).
When is air pollution at its worst in Madretsch?
Winter calm is the main driver behind poor air quality at Madretsch, letting vehicle traffic and administrative and commuter activity settle into the valley until stronger winds eventually clear it. The rest of the year sees much better conditions in the valley, with summer's ozone spikes limited to the hottest, stillest days, and autumn generally reliable.
Are air quality levels in Madretsch 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.
Want to see air quality forecasts for other cities in Switzerland?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app