Worst air pollution Flon - Lausanne, today and tomorrow

Today (16 July): Air quality in Flon is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 38.1/100).
Tomorrow (17 July 2026): Air quality in Flon is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 33.7/100). 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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Flon's air quality reflects its position in a converted valley gorge now Lausanne's nightlife hub, with pedestrian zones limiting traffic while the valley's partial enclosure can concentrate emissions somewhat.

Today - 16 July | Pollution peaks at 12:00

AQI:

Fair

38.1/100

PM2.5 (fine particles):

Good

15.9/100

PM10 (coarse particles):

Good

7.3/100

NO2 (nitrogen dioxide):

Fair

26.6/100

O3 (ozone):

Fair

38.1/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.9/100

PM1 (ultrafine particles):

Good

16.3/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 15:00

AQI:

Fair

33.7/100

PM2.5 (fine particles):

Good

9.5/100

PM10 (coarse particles):

Good

9.3/100

NO2 (nitrogen dioxide):

Fair

20.4/100

O3 (ozone):

Fair

33.7/100

SO2 (sulfur dioxide):

Good

1.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.8/100

PM1 (ultrafine particles):

Good

6.9/100

Other Landmarks in Lausanne

Frequently Asked Questions

Is air quality bad in Flon right now?

On 16 July 2026, overall air quality in Flon is fair. AQI is the main air quality indicator at 38.1/100. Pollution peaks around 12:00 PM (O3: 38.1/100).

Will air quality be worse tomorrow in Flon?

On 17 July 2026, air quality conditions in Flon will be similar to today, with AQI forecast at fair at 33.7/100. Pollution peaks around 3:00 PM (O3: 33.7/100).

When is air pollution at its worst in Flon?

Air quality at Flon dips most on still winter mornings, when vehicle traffic and international commuter activity settle in close to the lake and sit under a shallow basin inversion. From spring, conditions steadily pick up around the lake, and summer stays mostly clear aside from a rare ozone spike, with autumn usually just as settled.

Are air quality levels in Flon 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.

Want to see air quality forecasts for other cities in Switzerland?

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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