Worst air pollution Arosa Lenzerheide Ski Area - Arosa, today and tomorrow
Today (16 July): Air quality in Arosa Lenzerheide Ski Area is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 39.1/100).
Tomorrow (17 July 2026): Air quality in Arosa Lenzerheide Ski Area is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 35.9/100). 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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Arosa Lenzerheide Ski Area's air quality benefits from its elevated Alpine position above Chur, with winter ski tourism traffic the primary seasonal local source amid generally excellent mountain conditions.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
39.1/100
PM2.5 (fine particles):
Good
5.9/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
39.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
7.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
35.9/100
PM2.5 (fine particles):
Good
5.9/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
35.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
6.6/100
Sports venues in Arosa
Frequently Asked Questions
Is air quality bad in Arosa Lenzerheide Ski Area right now?
On 16 July 2026, overall air quality in Arosa Lenzerheide Ski Area is fair. AQI is the main air quality indicator at 39.1/100. Pollution peaks around 12:00 PM (O3: 39.1/100).
Will air quality be worse tomorrow in Arosa Lenzerheide Ski Area?
On 17 July 2026, air quality conditions in Arosa Lenzerheide Ski Area will be similar to today, with AQI forecast at fair at 35.9/100. Pollution peaks around 3:00 PM (O3: 35.9/100).
When is air pollution at its worst in Arosa Lenzerheide Ski Area?
Few places sit as clean as Arosa Lenzerheide Ski Area for most of the year; the only dip comes during peak season, when seasonal tourist and cable car traffic briefly adds to local emissions before the thin, high-altitude air restores its usual excellent readings.
Are air quality levels in Arosa Lenzerheide Ski Area 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