Worst air pollution Baie-Comeau, today and tomorrow
Today (16 July): Air quality in Baie-Comeau is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 51.1/100).
Tomorrow (17 July 2026): Air quality in Baie-Comeau is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 28.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Baie-Comeau's air quality reflects its aluminum smelting and pulp mill industry legacy on the Côte-Nord, with industrial operations contributing local emissions amid otherwise clean surroundings.
Today - 16 July | Pollution peaks at 09:00
AQI:
Medium
51.1/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
51.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
6.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
8.1/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
9.0/100
Pollen forecast in Baie-Comeau
View pollen forecastFrequently Asked Questions
Is air quality bad in Baie-Comeau right now?
On 16 July 2026, overall air quality in Baie-Comeau is medium. AQI is the main air quality indicator at 51.1/100. Pollution peaks around 9:00 AM (O3: 51.1/100).
Will air quality be worse tomorrow in Baie-Comeau?
On 17 July 2026, air quality conditions in Baie-Comeau will be worse than today, with AQI forecast at fair at 28.9/100. Pollution peaks around 12:00 PM (O3: 28.9/100).
When is air pollution at its worst in Baie-Comeau?
Seasonal air quality in Baie-Comeau is closely linked to its aluminum smelter and paper mill on the remote North Shore. For much of the year the air is clean and forest-fresh, but summer and early autumn carry real risk of smoke episodes when wildfires burn nearby or further north. Wind direction across the river determines how much of the industrial output drifts into town on any given day.
Are air quality levels in Baie-Comeau 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.
Check air quality in other popular cities:
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