Worst air pollution Rouen, today and tomorrow
Today (16 July): Air quality in Rouen is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 49.2/100).
Tomorrow (17 July 2026): Air quality in Rouen is fair. AQI worsens to fair; NO2 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 31.0/100). 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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Rouen's air quality faces significant industrial challenges from the Seine valley's concentration of refineries, chemical plants, and pharmaceutical manufacturing, with elevated SO₂ and industrial PM2.5 alongside vehicle traffic on the A28. The Seine valley's topographic enclosure concentrates emissions under calm conditions, making Rouen one of northwestern France's more persistently challenged urban industrial environments.
Today - 16 July | Pollution peaks at 16:00
AQI:
Medium
49.2/100
PM2.5 (fine particles):
Good
7.7/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Fair
22.0/100
O3 (ozone):
Medium
49.2/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.4/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
31.0/100
PM2.5 (fine particles):
Good
9.0/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
18.6/100
O3 (ozone):
Fair
31.0/100
SO2 (sulfur dioxide):
Good
2.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
7.8/100
Pollen forecast in Rouen
View pollen forecastFrequently Asked Questions
Is air quality bad in Rouen right now?
On 16 July 2026, overall air quality in Rouen is fair. NO2 is the main pollutant at 22.0/100. Pollution peaks around 4:00 PM (O3: 49.2/100).
Will air quality be worse tomorrow in Rouen?
On 17 July 2026, air quality conditions in Rouen will be similar to today, with AQI forecast at fair at 31.0/100. Pollution peaks around 4:00 PM (O3: 31.0/100).
When is air pollution at its worst in Rouen?
Rouen's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when port traffic and cross-Channel shipping overlap with the birch and oak pollen peak; Channel winds provide frequent ventilation, offering fairly regular relief.
Are air quality levels in Rouen 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