Worst air pollution Vimercate, today and tomorrow
Today (20 September): Air quality in Vimercate is moderate. AQI, PM2.5, PM10, NO2, and O3 are moderate; HCHO and PM1 are fair; SO2 and CO are good. Pollution peaks around 9:00 PM (NO2: 53.0/100).
Tomorrow (21 September 2026): Air quality in Vimercate is poor. AQI worsens to poor; NO2 increases to poor; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 69.8/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Sitting on the Lombard plain northeast of Milan, Vimercate sees vehicle traffic in the dense Milan metropolitan belt as the dominant local influence on air quality, while the surrounding Lombardia terrain affects how pollutants disperse. Calm, still conditions tend to let levels build here more than in breezier weather, and the local topography around Vimercate can trap emissions for longer stretches during stable atmospheric periods.
Today - 20 September | Pollution peaks at 21:00
AQI:
Moderate
53.0/100
PM2.5 (fine particles):
Moderate
48.9/100
PM10 (coarse particles):
Moderate
44.8/100
NO2 (nitrogen dioxide):
Moderate
53.0/100
O3 (ozone):
Moderate
42.5/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
1.4/100
HCHO (formaldehyde):
Fair
21.7/100
PM1 (ultrafine particles):
Fair
37.9/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 20:00
AQI:
Poor
69.8/100
PM2.5 (fine particles):
Moderate
49.4/100
PM10 (coarse particles):
Moderate
44.7/100
NO2 (nitrogen dioxide):
Poor
69.8/100
O3 (ozone):
Moderate
54.4/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
1.5/100
HCHO (formaldehyde):
Fair
22.1/100
PM1 (ultrafine particles):
Fair
38.2/100
Pollen forecast in Vimercate
View pollen forecastFrequently Asked Questions
Is air quality bad in Vimercate right now?
On 20 September 2026, overall air quality in Vimercate is moderate. AQI is the main air quality indicator at 53.0/100. Pollution peaks around 9:00 PM (NO2: 53.0/100).
Will air quality be worse tomorrow in Vimercate?
On 21 September 2026, air quality conditions in Vimercate will be worse than today, with AQI forecast at poor at 69.8/100. Pollution peaks around 8:00 PM (NO2: 69.8/100).
When is air pollution at its worst in Vimercate?
Vimercate residents most often flag air quality concerns during pine and oak pollen season and spells of vehicle traffic in the dense Milan metropolitan belt; the remaining months across Lombardia tend to be considerably calmer and clearer.
Are air quality levels in Vimercate 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.
Want to see air quality forecasts for other cities in Italy?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
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.
Get the full experience in the Airmine app.