Worst air pollution Val di Fiemme, today and tomorrow
Today (20 September): Air quality in Val di Fiemme is moderate. AQI and PM2.5 are moderate; PM10, NO2, and O3 are fair; SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM2.5: 41.6/100).
Tomorrow (21 September 2026): Air quality in Val di Fiemme is fair. AQI improves to fair; PM2.5 decreases to fair; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 34.5/100). 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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Val di Fiemme's air quality benefits from its exceptional Trentino-Alto Adige Dolomites alpine valley position at approximately 1,000 metres on the Avisio River, with consistent alpine valley breezes providing clean natural ventilation through this famous Nordic skiing and Marcialonga cross-country ski marathon corridor. Very modest vehicle traffic and the tourism and agricultural corridor contribute minimal local sources, while the extraordinary Dolomites UNESCO alpine setting and the clean mountain climate generally maintain excellent to good conditions throughout most of the year.
Today - 20 September | Pollution peaks at 07:00
AQI:
Moderate
41.6/100
PM2.5 (fine particles):
Moderate
41.6/100
PM10 (coarse particles):
Fair
25.3/100
NO2 (nitrogen dioxide):
Fair
25.8/100
O3 (ozone):
Fair
34.6/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
19.2/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 17:00
AQI:
Fair
34.5/100
PM2.5 (fine particles):
Fair
26.6/100
PM10 (coarse particles):
Good
14.1/100
NO2 (nitrogen dioxide):
Fair
22.3/100
O3 (ozone):
Fair
34.5/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Good
10.4/100
Pollen forecast in Val di Fiemme
View pollen forecastFrequently Asked Questions
Is air quality bad in Val di Fiemme right now?
On 20 September 2026, overall air quality in Val di Fiemme is moderate. AQI is the main air quality indicator at 41.6/100. Pollution peaks around 7:00 AM (PM2.5: 41.6/100).
Will air quality be worse tomorrow in Val di Fiemme?
On 21 September 2026, air quality conditions in Val di Fiemme will be better than today, with AQI forecast at fair at 34.5/100. Pollution peaks around 5:00 PM (O3: 34.5/100).
When is air pollution at its worst in Val di Fiemme?
Air quality dips in Val di Fiemme mostly track mountain pine spruce and larch pollen peaks and periods of very modest vehicle traffic and the tourism and agricultural corridor contribute minimal local sources; otherwise, the area's setting generally supports clear, well-ventilated conditions.
Are air quality levels in Val di Fiemme 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.
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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.
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