Worst air pollution Valence, today and tomorrow
Today (9 August): Air quality in Valence is fair. AQI, NO2, O3, and HCHO are fair; PM2.5, PM10, SO2, CO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 38.6/100).
Tomorrow (10 August 2026): Air quality in Valence is fair. HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 34.4/100). Airmine updates local air quality forecasts four times daily.
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Valence's air quality reflects the Drône plain in the Rhône valley at the Alpine foothills transition, with vehicle traffic on the A7 motorway and the surrounding agri-food and manufacturing industry contributing local sources. The Rhône valley provides ventilation on northerly Mistral wind days, while the surrounding Vercors plateau to the west and the Alpine foothills to the east create topographic variation and calm anticyclonic conditions allow ozone to accumulate from vehicle and agricultural emissions throughout the year.
Today - 9 August | Pollution peaks at 16:00
AQI:
Fair
38.6/100
PM2.5 (fine particles):
Good
5.7/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Fair
36.8/100
O3 (ozone):
Fair
38.6/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.1/100
PM1 (ultrafine particles):
Good
7.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 15:00
AQI:
Fair
34.4/100
PM2.5 (fine particles):
Good
5.8/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Fair
22.2/100
O3 (ozone):
Fair
34.4/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.4/100
PM1 (ultrafine particles):
Good
5.9/100
Pollen forecast in Valence
View pollen forecastFrequently Asked Questions
Is air quality bad in Valence right now?
On 9 August 2026, overall air quality in Valence is fair. AQI is the main air quality indicator at 38.6/100. Pollution peaks around 4:00 PM (O3: 38.6/100).
Will air quality be worse tomorrow in Valence?
On 10 August 2026, air quality conditions in Valence will be similar to today, with AQI forecast at fair at 34.4/100. Pollution peaks around 3:00 PM (O3: 34.4/100).
When is air pollution at its worst in Valence?
Residents in Valence tend to notice the most discomfort when valley motorway traffic and light industry build up alongside the spring peak in birch and oak pollen; mountain valley winds alternate with calm temperature inversions, which typically keeps things from getting worse for long. The presence of alpine valley pasture and orchards in the area adds another layer to the local pattern.
Are air quality levels in Valence 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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