Worst air pollution Ouimet Canyon - Thunder Bay, today and tomorrow
Today (16 July): Air quality in Ouimet Canyon is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 49.1/100).
Tomorrow (17 July 2026): Air quality in Ouimet Canyon is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 9:00 AM (O3: 35.0/100). 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
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Ouimet Canyon's air quality benefits from its remote boreal wilderness position near Thunder Bay, with minimal human activity beyond seasonal hikers keeping conditions exceptionally clean.
Today - 16 July | Pollution peaks at 08:00
AQI:
Medium
49.1/100
PM2.5 (fine particles):
Good
6.9/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
49.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
6.8/100
PM1 (ultrafine particles):
Good
8.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Fair
35.0/100
PM2.5 (fine particles):
Good
7.9/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
35.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
8.4/100
Other Landmarks in Thunder Bay
Sports venues in Thunder Bay
Frequently Asked Questions
Is air quality bad in Ouimet Canyon right now?
On 16 July 2026, overall air quality in Ouimet Canyon is medium. AQI is the main air quality indicator at 49.1/100. Pollution peaks around 8:00 AM (O3: 49.1/100).
Will air quality be worse tomorrow in Ouimet Canyon?
On 17 July 2026, air quality conditions in Ouimet Canyon will be worse than today, with AQI forecast at fair at 35.0/100. Pollution peaks around 9:00 AM (O3: 35.0/100).
When is air pollution at its worst in Ouimet Canyon?
Ouimet Canyon's air quality follows a seasonal rhythm tied to its deep, sheer-walled canyon in the boreal forest near Thunder Bay. Winters here typically bring the cleanest air of the year, but summer and early fall can bring sharp, sometimes prolonged drops in air quality when wildfire smoke drifts in from across the region. Local monitoring stations often see their highest readings of the year during major regional fire events.
Are air quality levels in Ouimet Canyon 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