Worst air pollution Chartres, today and tomorrow
Today (16 July): Air quality in Chartres is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 59.4/100).
Tomorrow (17 July 2026): Air quality in Chartres is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 47.5/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Chartres's air quality is shaped mainly by agricultural traffic and river-valley industry, with its position near the Indre playing a role, while the wide Loire valley allows steady airflow, which provides a natural check on pollution build-up. Cold, still winter spells are the main risk for particulate build-up, while summer usually sees cleaner air except during occasional heatwave-driven ozone episodes.
Today - 16 July | Pollution peaks at 15:00
AQI:
Medium
59.4/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Fair
22.3/100
O3 (ozone):
Medium
59.4/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.8/100
PM1 (ultrafine particles):
Good
11.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Medium
47.5/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
25.0/100
O3 (ozone):
Medium
47.5/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.2/100
PM1 (ultrafine particles):
Good
13.4/100
Pollen forecast in Chartres
View pollen forecastFrequently Asked Questions
Is air quality bad in Chartres right now?
On 16 July 2026, overall air quality in Chartres is fair. NO2 is the main pollutant at 22.3/100. Pollution peaks around 3:00 PM (O3: 59.4/100).
Will air quality be worse tomorrow in Chartres?
On 17 July 2026, air quality conditions in Chartres will be similar to today, with NO2 forecast at fair at 25.0/100. Pollution peaks around 2:00 PM (O3: 47.5/100).
When is air pollution at its worst in Chartres?
For people sensitive to both pollen and pollution in Chartres, spring days combining agricultural traffic and river-valley industry with the oak and plane peak are the ones to watch; the wide Loire valley allows steady airflow, which tends to clear things fairly quickly.
Are air quality levels in Chartres 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 France?
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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