Worst air pollution Mérignac, today and tomorrow
Today (16 July): Air quality in Mérignac is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 37.0/100).
Tomorrow (17 July 2026): Air quality in Mérignac is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 30.4/100). 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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Mérignac's air quality reflects the greater Bordeaux metropolitan area adjacent to Bordeaux-Mérignac Airport, with aviation and ground vehicle emissions generating elevated NOₓ and ultrafine particles in the flight corridor alongside vehicle traffic on the A630 motorway. Atlantic westerlies from the Gironde estuary generally provide maritime ventilation, while the airport's flight corridor makes Mérignac one of southwestern France's more aviation-influenced urban environments throughout the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Fair
37.0/100
PM2.5 (fine particles):
Good
6.8/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
6.3/100
O3 (ozone):
Fair
37.0/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.5/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
30.4/100
PM2.5 (fine particles):
Good
6.6/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
5.3/100
O3 (ozone):
Fair
30.4/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
5.3/100
Pollen forecast in Mérignac
View pollen forecastFrequently Asked Questions
Is air quality bad in Mérignac right now?
On 16 July 2026, overall air quality in Mérignac is fair. AQI is the main air quality indicator at 37.0/100. Pollution peaks around 1:00 PM (O3: 37.0/100).
Will air quality be worse tomorrow in Mérignac?
On 17 July 2026, air quality conditions in Mérignac will be similar to today, with AQI forecast at fair at 30.4/100. Pollution peaks around 2:00 PM (O3: 30.4/100).
When is air pollution at its worst in Mérignac?
The days that hit sensitive groups hardest in Mérignac are calm spring ones, when port traffic and light industry and the oak and plane pollen peak overlap; Atlantic westerlies ventilate the region regularly, so relief usually isn't far behind. The presence of vineyard land and the Landes pine forest in the area adds another layer to the local pattern.
Are air quality levels in Mérignac 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