Worst air pollution Rosedale Golf Club - Toronto, today and tomorrow
Today (16 July): Air quality in Rosedale Golf Club is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 32.0/100).
Tomorrow (17 July 2026): Air quality in Rosedale Golf Club is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 29.1/100). 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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Rosedale Golf Club air quality reflects its deep downtown Toronto ravine position along Mud Creek, with the ravine's tree cover providing some shelter from surrounding city traffic emissions. The wider Toronto urban airshed contributes background ozone and particulates, particularly on hot, calm summer afternoons when pollution tends to settle over the city.
Today - 16 July | Pollution peaks at 10:00
AQI:
Fair
32.0/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Good
1.1/100
O3 (ozone):
Fair
32.0/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
4.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
29.1/100
PM2.5 (fine particles):
Good
4.8/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
1.1/100
O3 (ozone):
Fair
29.1/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
3.4/100
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Frequently Asked Questions
Is air quality bad in Rosedale Golf Club right now?
On 16 July 2026, overall air quality in Rosedale Golf Club is fair. AQI is the main air quality indicator at 32.0/100. Pollution peaks around 10:00 AM (O3: 32.0/100).
Will air quality be worse tomorrow in Rosedale Golf Club?
On 17 July 2026, air quality conditions in Rosedale Golf Club will be similar to today, with AQI forecast at fair at 29.1/100. Pollution peaks around 8:00 AM (O3: 29.1/100).
When is air pollution at its worst in Rosedale Golf Club?
Golfers occasionally notice hazier conditions on hot, still summer afternoons, when city ozone and ragweed pollen settle over the ravine. The deep tree cover offers some shelter, but calm, humid days are when sensitive golfers may want to plan around midday heat. Mornings tend to be clearest.
Are air quality levels in Rosedale Golf Club 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