Worst air pollution Legnano, today and tomorrow
Today (16 July): Air quality in Legnano is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 64.8/100).
Tomorrow (17 July 2026): Air quality in Legnano is poor. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 62.1/100). 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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Legnano's air quality faces the Po Valley's enclosed flat basin in the Varese province northwest of Milan, with vehicle traffic on the SP41 and surrounding textile and manufacturing legacy industry contributing local sources. The flat Lombardy plain's persistent winter anticyclones trap emissions under extended inversion periods, while the Malpensa Airport's aviation operations nearby contribute additional NOₓ and the Po Valley's combined industrial and vehicle emissions create the characteristic northern Italian winter PM2.5 challenge.
Today - 16 July | Pollution peaks at 15:00
AQI:
Poor
64.8/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
1.2/100
O3 (ozone):
Poor
64.8/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.1/100
PM1 (ultrafine particles):
Good
11.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Poor
62.1/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Poor
62.1/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.2/100
PM1 (ultrafine particles):
Good
12.5/100
Pollen forecast in Legnano
View pollen forecastFrequently Asked Questions
Is air quality bad in Legnano right now?
On 16 July 2026, overall air quality in Legnano is poor. AQI is the main air quality indicator at 64.8/100. Pollution peaks around 3:00 PM (O3: 64.8/100).
Will air quality be worse tomorrow in Legnano?
On 17 July 2026, air quality conditions in Legnano will be similar to today, with AQI forecast at poor at 62.1/100. Pollution peaks around 3:00 PM (O3: 62.1/100).
When is air pollution at its worst in Legnano?
Legnano residents notice reduced air quality mainly when metropolitan green spaces oak and birch pollen peaks, and during spells of vehicle traffic on the SP41 and local textile and manufacturing legacy industry; background levels usually settle back down once the season changes.
Are air quality levels in Legnano 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.
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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