Worst air pollution Lille, today and tomorrow
Today (9 August): Air quality in Lille is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 54.4/100).
Tomorrow (10 August 2026): Air quality in Lille is fair. AQI worsens to fair; NO2 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (O3: 29.2/100). Airmine updates local air quality forecasts four times daily.
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Lille's air quality reflects its position at the heart of the Franco-Belgian conurbation on the Nord-Pas-de-Calais plateau, with vehicle traffic on the A1 Paris-Brussels motorway corridor and the surrounding textile and industrial manufacturing legacy contributing sustained elevated NO₂ and PM2.5. Cross-border pollution from the Belgian industrial Sambre-Meuse valley and the surrounding metropolitan area's high vehicle density make the Lille-Roubaix-Tourcoing conurbation one of northern France's more challenging urban air quality environments.
Today - 9 August | Pollution peaks at 14:00
AQI:
Medium
54.4/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Fair
25.4/100
O3 (ozone):
Medium
54.4/100
SO2 (sulfur dioxide):
Good
4.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.8/100
PM1 (ultrafine particles):
Good
13.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
29.2/100
PM2.5 (fine particles):
Good
9.3/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Good
17.2/100
O3 (ozone):
Fair
29.2/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
6.4/100
Pollen forecast in Lille
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Frequently Asked Questions
Is air quality bad in Lille right now?
On 9 August 2026, overall air quality in Lille is fair. NO2 is the main pollutant at 25.4/100. Pollution peaks around 2:00 PM (O3: 54.4/100).
Will air quality be worse tomorrow in Lille?
On 10 August 2026, air quality conditions in Lille will be similar to today, with AQI forecast at fair at 29.2/100. Pollution peaks around 12:00 AM (O3: 29.2/100).
When is air pollution at its worst in Lille?
For people sensitive to both pollen and pollution in Lille, spring days combining former coalfield industry and motorway traffic with the birch and oak peak are the ones to watch; North Sea winds sweep across the open plains, which tends to clear things fairly quickly.
Are air quality levels in Lille 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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