Worst air pollution Thetford Mines, today and tomorrow
Today (16 July): Air quality in Thetford Mines 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 Thetford Mines 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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Thetford Mines' air quality reflects its former asbestos-mining industry legacy, now largely closed, with vehicle traffic on Highway 112 the primary current local source amid generally clean conditions.
Today - 16 July | Pollution peaks at 07:00
AQI:
Fair
38.9/100
PM2.5 (fine particles):
Good
5.0/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
5.4/100
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
4.9/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
32.3/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
4.2/100
Pollen forecast in Thetford Mines
View pollen forecastFrequently Asked Questions
Is air quality bad in Thetford Mines right now?
On 16 July 2026, overall air quality in Thetford Mines 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 Thetford Mines?
On 17 July 2026, air quality conditions in Thetford Mines 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 Thetford Mines?
Air quality in Thetford Mines shifts noticeably across the seasons, shaped by its former asbestos-mining pits in the Chaudiere-Appalaches hills. 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. Dust from mining operations adds a small, steady contribution on top of the seasonal wildfire risk.
Are air quality levels in Thetford Mines 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