Worst air pollution Contrecoeur, today and tomorrow
Today (16 July): Air quality in Contrecoeur is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 38.9/100).
Tomorrow (17 July 2026): Air quality in Contrecoeur is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 32.3/100). 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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Contrecoeur's air quality reflects its industrial port position on the St. Lawrence Seaway, with steel and port operations contributing local emissions alongside vehicle traffic.
Today - 16 July | Pollution peaks at 07:00
AQI:
Fair
38.9/100
PM2.5 (fine particles):
Good
5.7/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Good
10.0/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
6.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
32.3/100
PM2.5 (fine particles):
Good
5.6/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
5.0/100
O3 (ozone):
Fair
32.3/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
4.8/100
Pollen forecast in Contrecoeur
View pollen forecastFrequently Asked Questions
Is air quality bad in Contrecoeur right now?
On 16 July 2026, overall air quality in Contrecoeur is fair. AQI is the main air quality indicator at 38.9/100. Pollution peaks around 7:00 AM (O3: 38.9/100).
Will air quality be worse tomorrow in Contrecoeur?
On 17 July 2026, air quality conditions in Contrecoeur will be similar to today, with AQI forecast at fair at 32.3/100. Pollution peaks around 10:00 AM (O3: 32.3/100).
When is air pollution at its worst in Contrecoeur?
Contrecoeur's air quality is closely linked to its riverside port and steel industry on the St. Lawrence. Air quality here tends to dip in summer, when heat and industrial output combine, and again briefly in winter when cold, calm air traps emissions near ground level. Wind direction off the harbour plays a large role in how far pollutants travel into surrounding neighbourhoods.
Are air quality levels in Contrecoeur 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