Worst air pollution Bellinzona, today and tomorrow
Today (16 July): Air quality in Bellinzona is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 58.2/100).
Tomorrow (17 July 2026): Air quality in Bellinzona is fair. PM2.5 increases to fair; HCHO increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 49.9/100). 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
Use our Strava plugin to check your own exposure.
Bellinzona's air quality reflects its enclosed Ticino valley position beneath the Alps, with vehicle traffic on the A2 motorway — the main north-south Alpine transit route — contributing local sources under inversions.
Today - 16 July | Pollution peaks at 18:00
AQI:
Medium
58.2/100
PM2.5 (fine particles):
Good
17.3/100
PM10 (coarse particles):
Good
6.7/100
NO2 (nitrogen dioxide):
Medium
44.7/100
O3 (ozone):
Medium
58.2/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.5/100
PM1 (ultrafine particles):
Good
19.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Medium
49.9/100
PM2.5 (fine particles):
Fair
22.0/100
PM10 (coarse particles):
Good
9.2/100
NO2 (nitrogen dioxide):
Medium
43.9/100
O3 (ozone):
Medium
49.9/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.1/100
PM1 (ultrafine particles):
Fair
24.2/100
Pollen forecast in Bellinzona
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Bellinzona
Frequently Asked Questions
Is air quality bad in Bellinzona right now?
On 16 July 2026, overall air quality in Bellinzona is medium. AQI is the main air quality indicator at 58.2/100. Pollution peaks around 6:00 PM (O3: 58.2/100).
Will air quality be worse tomorrow in Bellinzona?
On 17 July 2026, air quality conditions in Bellinzona will be worse than today, with PM1 forecast at fair at 24.2/100. Pollution peaks around 5:00 PM (O3: 49.9/100).
When is air pollution at its worst in Bellinzona?
Bellinzona sees its worst air quality on windless winter mornings, when vehicle traffic and tourism pool in this mild southern basin under a shallow layer of still air. From spring, conditions steadily pick up in this southern setting, and summer stays mostly clear aside from a rare ozone spike, with autumn usually just as settled.
Are air quality levels in Bellinzona 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?
Check air quality in other popular cities:
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