Worst air pollution Troyes, today and tomorrow
Today (16 July): Air quality in Troyes is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 55.5/100).
Tomorrow (17 July 2026): Air quality in Troyes is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 51.5/100). 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
Use our Strava plugin to check your own exposure.
Troyes' air quality benefits from the flat Champagne Crayeuse chalk plain position, with vehicle traffic on the A5 and A26 motorways and the surrounding clothing industry and logistics operations contributing local sources in this former French fashion capital. Atlantic westerlies from the English Channel and Paris basin generally provide reliable ventilation across the flat Champagne plain, while the chalk landscape's open character prevents significant topographic pollution accumulation throughout the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Medium
55.5/100
PM2.5 (fine particles):
Good
9.2/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
18.9/100
O3 (ozone):
Medium
55.5/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.8/100
PM1 (ultrafine particles):
Good
11.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 18:00
AQI:
Medium
51.5/100
PM2.5 (fine particles):
Good
12.3/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Fair
22.4/100
O3 (ozone):
Medium
51.5/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.6/100
PM1 (ultrafine particles):
Good
16.1/100
Pollen forecast in Troyes
View pollen forecastFrequently Asked Questions
Is air quality bad in Troyes right now?
On 16 July 2026, overall air quality in Troyes is medium. AQI is the main air quality indicator at 55.5/100. Pollution peaks around 3:00 PM (O3: 55.5/100).
Will air quality be worse tomorrow in Troyes?
On 17 July 2026, air quality conditions in Troyes will be worse than today, with NO2 forecast at fair at 22.4/100. Pollution peaks around 6:00 PM (O3: 51.5/100).
When is air pollution at its worst in Troyes?
Troyes's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when cross-border industry and river traffic overlap with the oak and hornbeam pollen peak; the Vosges and river valleys shape local wind patterns, offering fairly regular relief.
Are air quality levels in Troyes 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?
Check air quality in other popular cities:
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