Worst air pollution Nanterre, today and tomorrow
Today (9 August): Air quality in Nanterre is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 39.7/100).
Tomorrow (10 August 2026): Air quality in Nanterre is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 32.4/100). 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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Nanterre's air quality reflects Greater Paris' densely industrialised western inner suburb, with the A86 and La Défense business district's concentrated commuter traffic generating sustained NO₂ alongside the dense urban character. The Seine river provides limited ventilation, while prevailing westerlies carry Atlantic air through the Paris basin and the motorway exposure keeps readings consistently elevated.
Today - 9 August | Pollution peaks at 13:00
AQI:
Fair
39.7/100
PM2.5 (fine particles):
Good
13.4/100
PM10 (coarse particles):
Good
9.8/100
NO2 (nitrogen dioxide):
Fair
25.8/100
O3 (ozone):
Fair
39.7/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
17.1/100
PM1 (ultrafine particles):
Good
17.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 12:00
AQI:
Fair
32.4/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
14.1/100
O3 (ozone):
Fair
32.4/100
SO2 (sulfur dioxide):
Good
4.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
6.9/100
Pollen forecast in Nanterre
View pollen forecastFrequently Asked Questions
Is air quality bad in Nanterre right now?
On 9 August 2026, overall air quality in Nanterre is fair. AQI is the main air quality indicator at 39.7/100. Pollution peaks around 1:00 PM (O3: 39.7/100).
Will air quality be worse tomorrow in Nanterre?
On 10 August 2026, air quality conditions in Nanterre will be similar to today, with AQI forecast at fair at 32.4/100. Pollution peaks around 12:00 PM (O3: 32.4/100).
When is air pollution at its worst in Nanterre?
In Nanterre, the worst combined pollen and air quality days tend to come when agricultural traffic and river-valley industry coincide with the peak oak and plane pollen season in spring; the wide Loire valley allows steady airflow, so conditions usually improve within a day or two. Nearby Loire valley cereal farmland and vineyards add a further seasonal factor.
Are air quality levels in Nanterre 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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