Worst air pollution Tours, today and tomorrow
Today (16 July): Air quality in Tours is poor. AQI and O3 are poor; NO2 and PM1 are fair; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 60.4/100).
Tomorrow (17 July 2026): Air quality in Tours is fair. AQI improves to fair; O3 decreases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 7:00 PM (O3: 37.8/100). 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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Tours's air quality benefits from the Loire valley's consistent Atlantic westerly ventilation, with the Loire river corridor channelling clean ocean air into central France across the flat Touraine plain. Vehicle traffic on the A10 motorway and the surrounding pharmaceutical manufacturing and university research corridor contribute the primary local emissions, while the open Loire floodplain and consistent Atlantic airflows generally prevent the severe pollution accumulation seen in more topographically enclosed French cities, maintaining Tours among the Loire Valley's more moderate urban air quality environments.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
60.4/100
PM2.5 (fine particles):
Good
18.0/100
PM10 (coarse particles):
Good
6.0/100
NO2 (nitrogen dioxide):
Fair
38.4/100
O3 (ozone):
Poor
60.4/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.1/100
PM1 (ultrafine particles):
Fair
21.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 19:00
AQI:
Fair
37.8/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Fair
20.8/100
O3 (ozone):
Fair
37.8/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Good
13.6/100
Pollen forecast in Tours
View pollen forecastFrequently Asked Questions
Is air quality bad in Tours right now?
On 16 July 2026, overall air quality in Tours is poor. AQI is the main air quality indicator at 60.4/100. Pollution peaks around 1:00 PM (O3: 60.4/100).
Will air quality be worse tomorrow in Tours?
On 17 July 2026, air quality conditions in Tours will be better than today, with AQI forecast at fair at 37.8/100. Pollution peaks around 7:00 PM (O3: 37.8/100).
When is air pollution at its worst in Tours?
Tours's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when agricultural traffic and river-valley industry overlap with the oak and plane pollen peak; the wide Loire valley allows steady airflow, offering fairly regular relief.
Are air quality levels in Tours 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