Worst air pollution Orange Velodrome - Marseille, today and tomorrow

Today (9 August): Air quality in Orange Velodrome is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 54.0/100).
Tomorrow (10 August 2026): Air quality in Orange Velodrome is medium. All pollutants stay as today. Pollution peaks around 4:00 PM (O3: 55.5/100). 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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Orange Velodrome sees air quality driven largely by tourist traffic and coastal industry, while the Mistral wind provides powerful periodic ventilation, helping maintain reasonable conditions across the year. Summer brings the greatest risk of ozone build-up, as calm, hot anticyclonic conditions persist for days between Mistral episodes; winter is generally cleaner and better ventilated.

Today - 9 August | Pollution peaks at 18:00

AQI:

Medium

54.0/100

PM2.5 (fine particles):

Good

10.3/100

PM10 (coarse particles):

Good

3.9/100

NO2 (nitrogen dioxide):

Good

5.8/100

O3 (ozone):

Medium

54.0/100

SO2 (sulfur dioxide):

Good

1.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.8/100

PM1 (ultrafine particles):

Good

7.2/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 16:00

AQI:

Medium

55.5/100

PM2.5 (fine particles):

Good

11.3/100

PM10 (coarse particles):

Good

4.0/100

NO2 (nitrogen dioxide):

Good

7.2/100

O3 (ozone):

Medium

55.5/100

SO2 (sulfur dioxide):

Good

2.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.8/100

PM1 (ultrafine particles):

Good

10.1/100

Other Landmarks in Marseille

Sports venues in Marseille

Frequently Asked Questions

Is air quality bad in Orange Velodrome right now?

On 9 August 2026, overall air quality in Orange Velodrome is medium. AQI is the main air quality indicator at 54.0/100. Pollution peaks around 6:00 PM (O3: 54.0/100).

Will air quality be worse tomorrow in Orange Velodrome?

On 10 August 2026, air quality conditions in Orange Velodrome will be similar to today, with AQI forecast at medium at 55.5/100. Pollution peaks around 4:00 PM (O3: 55.5/100).

When is air pollution at its worst in Orange Velodrome?

For sensitive visitors to Orange Velodrome, the days to watch are calm spring ones when plane and pine pollen and tourist traffic and coastal industry overlap; the Mistral wind provides powerful periodic ventilation.

Are air quality levels in Orange Velodrome 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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