Worst air pollution Griffintown - Montréal, today and tomorrow
Today (9 August): Air quality in Griffintown is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 37.5/100).
Tomorrow (10 August 2026): Air quality in Griffintown is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 35.9/100). 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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Griffintown's air quality reflects its dense converted-industrial high-rise character near the Ville-Marie Expressway, with vehicle traffic contributing significant local emissions to this rapidly developing district.
Today - 9 August | Pollution peaks at 09:00
AQI:
Fair
37.5/100
PM2.5 (fine particles):
Good
8.3/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Good
17.0/100
O3 (ozone):
Fair
37.5/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.7/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 11:00
AQI:
Fair
35.9/100
PM2.5 (fine particles):
Good
10.7/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Fair
21.5/100
O3 (ozone):
Fair
35.9/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.8/100
PM1 (ultrafine particles):
Good
8.3/100
Other Landmarks in Montréal
Sports venues in Montréal
Frequently Asked Questions
Is air quality bad in Griffintown right now?
On 9 August 2026, overall air quality in Griffintown is fair. AQI is the main air quality indicator at 37.5/100. Pollution peaks around 9:00 AM (O3: 37.5/100).
Will air quality be worse tomorrow in Griffintown?
On 10 August 2026, air quality conditions in Griffintown will be similar to today, with AQI forecast at fair at 35.9/100. Pollution peaks around 11:00 AM (O3: 35.9/100).
When is air pollution at its worst in Griffintown?
The air over Griffintown varies through the year, influenced by its dense new condo towers built over former rail and canal lands. The warmest months typically see the poorest air quality, with heat and heavy traffic driving up smog levels on windless days, whereas fall and winter tend to bring cleaner, more variable conditions. A day of rain or wind usually clears things up quickly.
Are air quality levels in Griffintown 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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