Worst air pollution Asti, today and tomorrow
Today (9 August): Air quality in Asti is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 52.6/100).
Tomorrow (10 August 2026): Air quality in Asti is medium. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 55.9/100). 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.
Asti's air quality faces the Po Valley's enclosed flat basin, with vehicle traffic on the A21 motorway and surrounding wine and agri-food industry contributing local sources. The flat Piedmont plain's persistent winter anticyclones trap emissions under extended inversion periods, while the Monferrato hills to the east provide marginally better ventilation on easterly wind days and summer Po Valley ozone adds a significant warm-season dimension.
Today - 9 August | Pollution peaks at 14:00
AQI:
Medium
52.6/100
PM2.5 (fine particles):
Good
10.0/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
15.1/100
O3 (ozone):
Medium
52.6/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.7/100
PM1 (ultrafine particles):
Good
12.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 13:00
AQI:
Medium
55.9/100
PM2.5 (fine particles):
Good
12.0/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Good
19.6/100
O3 (ozone):
Medium
55.9/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.7/100
PM1 (ultrafine particles):
Good
16.3/100
Pollen forecast in Asti
View pollen forecastFrequently Asked Questions
Is air quality bad in Asti right now?
On 9 August 2026, overall air quality in Asti is medium. AQI is the main air quality indicator at 52.6/100. Pollution peaks around 2:00 PM (O3: 52.6/100).
Will air quality be worse tomorrow in Asti?
On 10 August 2026, air quality conditions in Asti will be similar to today, with AQI forecast at medium at 55.9/100. Pollution peaks around 1:00 PM (O3: 55.9/100).
When is air pollution at its worst in Asti?
You're quickest to notice worse air in Asti when local tree and grass pollen peaks, or due to vehicle traffic on the A21 motorway and neighbouring wine and agri-food industry; things typically settle down again once the weather pattern shifts.
Are air quality levels in Asti 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: 9 August 2026 at 20:27 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.
Get the full experience in the Airmine app.