Worst air pollution Boulogne-sur-Mer, today and tomorrow
Today (16 July): Air quality in Boulogne-sur-Mer is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (NO2: 30.6/100).
Tomorrow (17 July 2026): Air quality in Boulogne-sur-Mer is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 34.4/100). 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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Boulogne-sur-Mer's air quality is driven largely by former coalfield industry and motorway traffic, close to the Scarpe, though North Sea winds sweep across the open plains, limiting how much pollution can build up locally. Winter can see particulate build-up during still, cold spells, while summer generally benefits from stronger regional winds, aside from occasional cross-border ozone episodes.
Today - 16 July | Pollution peaks at 06:00
AQI:
Fair
30.6/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Fair
30.6/100
O3 (ozone):
Fair
21.7/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
9.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Fair
34.4/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Fair
34.4/100
O3 (ozone):
Fair
25.1/100
SO2 (sulfur dioxide):
Good
3.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
12.9/100
Pollen forecast in Boulogne-sur-Mer
View pollen forecastFrequently Asked Questions
Is air quality bad in Boulogne-sur-Mer right now?
On 16 July 2026, overall air quality in Boulogne-sur-Mer is fair. AQI is the main air quality indicator at 30.6/100. Pollution peaks around 6:00 AM (NO2: 30.6/100).
Will air quality be worse tomorrow in Boulogne-sur-Mer?
On 17 July 2026, air quality conditions in Boulogne-sur-Mer will be similar to today, with AQI forecast at fair at 34.4/100. Pollution peaks around 11:00 PM (NO2: 34.4/100).
When is air pollution at its worst in Boulogne-sur-Mer?
For people sensitive to both pollen and pollution in Boulogne-sur-Mer, 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. The presence of Picardy and Artois arable plains in the area adds another layer to the local pattern.
Are air quality levels in Boulogne-sur-Mer 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.
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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