Worst air pollution Mendrisio, today and tomorrow
Today (16 July): Air quality in Mendrisio is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 53.9/100).
Tomorrow (17 July 2026): Air quality in Mendrisio is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 47.9/100). 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.
Mendrisio's air quality reflects its position near the Italian border in southern Ticino, with cross-border commuter and freight traffic on the A2 motorway contributing local sources within this narrow valley.
Today - 16 July | Pollution peaks at 17:00
AQI:
Medium
53.9/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Fair
25.0/100
O3 (ozone):
Medium
53.9/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.5/100
PM1 (ultrafine particles):
Good
14.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Medium
47.9/100
PM2.5 (fine particles):
Good
13.4/100
PM10 (coarse particles):
Good
7.1/100
NO2 (nitrogen dioxide):
Fair
28.0/100
O3 (ozone):
Medium
47.9/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.7/100
PM1 (ultrafine particles):
Good
15.0/100
Pollen forecast in Mendrisio
View pollen forecastFrequently Asked Questions
Is air quality bad in Mendrisio right now?
On 16 July 2026, overall air quality in Mendrisio is fair. NO2 is the main pollutant at 25.0/100. Pollution peaks around 5:00 PM (O3: 53.9/100).
Will air quality be worse tomorrow in Mendrisio?
On 17 July 2026, air quality conditions in Mendrisio will be similar to today, with NO2 forecast at fair at 28.0/100. Pollution peaks around 3:00 PM (O3: 47.9/100).
When is air pollution at its worst in Mendrisio?
On a still winter morning, vehicle traffic and tourism at Mendrisio linger in this sheltered southern setting, pushing local readings to their worst point of the year. Things generally improve from spring onward, as this sheltered valley's breezes return more consistently, save for an occasional hot-weather ozone peak; autumn stays mostly mild.
Are air quality levels in Mendrisio 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