Worst air pollution Besançon, today and tomorrow
Today (16 July): Air quality in Besançon is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 48.0/100).
Tomorrow (17 July 2026): Air quality in Besançon is fair. AQI worsens to fair; NO2 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 36.5/100). 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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Besançon's air quality reflects the enclosed Doubs river valley surrounded by the Jura limestone plateaux, with vehicle traffic on the A36 motorway and surrounding precision engineering industry contributing local sources. The Doubs valley's topographic enclosure creates winter concentration of emissions, while Jura Atlantic westerlies provide the primary ventilation pathway through the enclosed canyon.
Today - 16 July | Pollution peaks at 13:00
AQI:
Medium
48.0/100
PM2.5 (fine particles):
Good
12.1/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Fair
28.2/100
O3 (ozone):
Medium
48.0/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.3/100
PM1 (ultrafine particles):
Good
11.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
36.5/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
5.2/100
NO2 (nitrogen dioxide):
Good
18.8/100
O3 (ozone):
Fair
36.5/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
6.8/100
Pollen forecast in Besançon
View pollen forecastFrequently Asked Questions
Is air quality bad in Besançon right now?
On 16 July 2026, overall air quality in Besançon is fair. NO2 is the main pollutant at 28.2/100. Pollution peaks around 1:00 PM (O3: 48.0/100).
Will air quality be worse tomorrow in Besançon?
On 17 July 2026, air quality conditions in Besançon will be similar to today, with AQI forecast at fair at 36.5/100. Pollution peaks around 4:00 PM (O3: 36.5/100).
When is air pollution at its worst in Besançon?
In Besançon, the worst combined pollen and air quality days tend to come when light industry and river-valley traffic coincide with the peak oak and hornbeam pollen season in spring; the Saone and Doubs valleys channel airflow, so conditions usually improve within a day or two.
Are air quality levels in Besançon 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