Canadian Tire Centre, Ottawa Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Canadian Tire Centre is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (NO2: 18.9/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Canadian Tire Centre is moderate. AQI worsens to moderate; NO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 4:00 PM (NO2: 42.6/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 18.9/100 |
| PM2.5 (fine particles) | Good | 12.8/100 |
| PM10 (coarse particles) | Good | 10.9/100 |
| NO2 (nitrogen dioxide) | Good | 18.9/100 |
| O3 (ozone) | Good | 12.2/100 |
| SO2 (sulfur dioxide) | Good | 0.5/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 1.3/100 |
| PM1 (ultrafine particles) | Good | 4.0/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Moderate | 42.6/100 |
| PM2.5 (fine particles) | Good | 19.3/100 |
| PM10 (coarse particles) | Good | 14.9/100 |
| NO2 (nitrogen dioxide) | Moderate | 42.6/100 |
| O3 (ozone) | Good | 12.6/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.6/100 |
| HCHO (formaldehyde) | Good | 2.0/100 |
| PM1 (ultrafine particles) | Good | 9.2/100 |
Local Environmental Conditions
Around this part of Ottawa, a mix of built-up land and open space means traffic is an important, but not overwhelming, local pollution source. Traffic on Highway 417 adds to local emissions. Home heating, especially wood stoves and fireplaces, adds smoke and fine particles in the colder months. Farming is another source: tilling and harvest raise dust, while fertilizer and livestock release ammonia that turns into fine particles.
Ozone is the main concern from July to August, when sunny days averaging 21°C turn traffic and other emissions into ozone by mid-afternoon. Fine particle levels climb from November to April, as home heating and traffic combine with cold, still air averaging -9°C. Field work, harvest and any burning of crop residues add bursts of dust and smoke in the farming season.
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Frequently Asked Questions About Air Quality in Ontario
Is air quality bad in Canadian Tire Centre right now?
On 10 October 2026, overall air quality in Canadian Tire Centre is good. AQI is the main air quality indicator at 18.9/100. Pollution peaks around 4:00 PM (NO2: 18.9/100).
Will air quality be worse tomorrow in Canadian Tire Centre?
On 11 October 2026, air quality conditions in Canadian Tire Centre will be worse than today, with AQI forecast at moderate at 42.6/100. Pollution peaks around 4:00 PM (NO2: 42.6/100).
When is air pollution at its worst in Canadian Tire Centre?
Ozone is the main concern from July to August, when sunny days averaging 21°C turn traffic and other emissions into ozone by mid-afternoon. Fine particle levels climb from November to April, as home heating and traffic combine with cold, still air averaging -9°C. Field work, harvest and any burning of crop residues add bursts of dust and smoke in the farming season.
Are air quality levels in Canadian Tire Centre 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |