Worst air pollution Stade Saint-Symphorien - Metz, today and tomorrow
Today (9 August): Air quality in Stade Saint-Symphorien is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 51.4/100).
Tomorrow (10 August 2026): Air quality in Stade Saint-Symphorien is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 PM (O3: 32.4/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
At Stade Saint-Symphorien, cross-border industry and river traffic is the main local source affecting air quality, though the Vosges and river valleys shape local wind patterns, which usually keeps pollution from building up. Winter is typically the most polluted season, as cold air settles in the valleys and traps heating and industrial emissions; summer brings better dispersion but occasional ozone spikes.
Today - 9 August | Pollution peaks at 12:00
AQI:
Medium
51.4/100
PM2.5 (fine particles):
Good
13.8/100
PM10 (coarse particles):
Good
6.2/100
NO2 (nitrogen dioxide):
Fair
34.1/100
O3 (ozone):
Medium
51.4/100
SO2 (sulfur dioxide):
Good
3.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.6/100
PM1 (ultrafine particles):
Good
19.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 20:00
AQI:
Fair
32.4/100
PM2.5 (fine particles):
Good
10.7/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
26.9/100
O3 (ozone):
Fair
32.4/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.9/100
PM1 (ultrafine particles):
Good
11.1/100
Sports venues in Metz
Frequently Asked Questions
Is air quality bad in Stade Saint-Symphorien right now?
On 9 August 2026, overall air quality in Stade Saint-Symphorien is fair. NO2 is the main pollutant at 34.1/100. Pollution peaks around 12:00 PM (O3: 51.4/100).
Will air quality be worse tomorrow in Stade Saint-Symphorien?
On 10 August 2026, air quality conditions in Stade Saint-Symphorien will be similar to today, with AQI forecast at fair at 32.4/100. Pollution peaks around 8:00 PM (O3: 32.4/100).
When is air pollution at its worst in Stade Saint-Symphorien?
Stade Saint-Symphorien sees its most challenging days when oak and hornbeam pollen peaks coincide with cross-border industry and river traffic; the Vosges and river valleys shape local wind patterns, generally bringing conditions back to normal quickly. Nearby Alsace-Lorraine cereal and vineyard land add a further seasonal factor.
Are air quality levels in Stade Saint-Symphorien 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.
Want to see air quality forecasts for other cities in France?
Check air quality in other popular cities:
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.
Get the full experience in the Airmine app.