Worst air pollution Circuit de la Sarthe - Le Mans, today and tomorrow
Today (16 July): Air quality in Circuit de la Sarthe 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: 54.7/100).
Tomorrow (17 July 2026): Air quality in Circuit de la Sarthe is medium. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 42.8/100). 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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Circuit de la Sarthe sees air quality driven largely by river-port traffic and light industry, while the Loire estuary and Atlantic winds ventilate the area, helping maintain reasonable conditions across the year. Conditions hold fairly steady year-round, with the occasional calm late-summer stretch allowing a modest rise in ozone before Atlantic winds clear it.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
54.7/100
PM2.5 (fine particles):
Good
11.1/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Medium
54.7/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.1/100
PM1 (ultrafine particles):
Good
13.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Medium
42.8/100
PM2.5 (fine particles):
Good
7.9/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
6.0/100
O3 (ozone):
Medium
42.8/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
9.9/100
Sports venues in Le Mans
Frequently Asked Questions
Is air quality bad in Circuit de la Sarthe right now?
On 16 July 2026, overall air quality in Circuit de la Sarthe is medium. AQI is the main air quality indicator at 54.7/100. Pollution peaks around 2:00 PM (O3: 54.7/100).
Will air quality be worse tomorrow in Circuit de la Sarthe?
On 17 July 2026, air quality conditions in Circuit de la Sarthe will be similar to today, with AQI forecast at medium at 42.8/100. Pollution peaks around 3:00 PM (O3: 42.8/100).
When is air pollution at its worst in Circuit de la Sarthe?
Circuit de la Sarthe is toughest for allergy sufferers when oak and plane pollen peaks and river-port traffic and light industry coincide; the Loire estuary and Atlantic winds ventilate the area, so it doesn't usually last. The presence of Loire valley and Vendee farmland in the area adds another layer to the local pattern.
Are air quality levels in Circuit de la Sarthe 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