Worst air pollution Saint-Quentin, today and tomorrow
Today (16 July): Air quality in Saint-Quentin is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 53.6/100).
Tomorrow (17 July 2026): Air quality in Saint-Quentin is fair. O3 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 45.2/100). 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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Saint-Quentin's air quality reflects the flat Picardie Somme valley, with vehicle traffic on the A26 motorway and the surrounding textiles, chemicals, and logistics industry contributing local sources. Atlantic westerlies from the English Channel generally provide reliable ventilation across the flat northern French plain, while the surrounding Picardie agricultural landscape and flat terrain prevent significant topographic pollution trapping throughout the year.
Today - 16 July | Pollution peaks at 18:00
AQI:
Medium
53.6/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Medium
40.0/100
O3 (ozone):
Medium
53.6/100
SO2 (sulfur dioxide):
Good
10.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
10.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Medium
45.2/100
PM2.5 (fine particles):
Good
10.1/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Medium
45.2/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
11.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
8.7/100
Pollen forecast in Saint-Quentin
View pollen forecastFrequently Asked Questions
Is air quality bad in Saint-Quentin right now?
On 16 July 2026, overall air quality in Saint-Quentin is medium. AQI is the main air quality indicator at 53.6/100. Pollution peaks around 6:00 PM (O3: 53.6/100).
Will air quality be worse tomorrow in Saint-Quentin?
On 17 July 2026, air quality conditions in Saint-Quentin will be worse than today, with O3 forecast at fair at 36.2/100. Pollution peaks around 6:00 AM (NO2: 45.2/100).
When is air pollution at its worst in Saint-Quentin?
In Saint-Quentin, the worst combined pollen and air quality days tend to come when former coalfield industry and motorway traffic coincide with the peak birch and oak pollen season in spring; North Sea winds sweep across the open plains, so conditions usually improve within a day or two.
Are air quality levels in Saint-Quentin 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