Bruce Peninsula National Park, Tobermory Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Bruce Peninsula National Park is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM2.5: 17.3/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Bruce Peninsula National Park is fair. AQI worsens to fair; PM2.5 increases to fair; NO2 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (NO2: 28.5/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 17.3/100 |
| PM2.5 (fine particles) | Good | 17.3/100 |
| PM10 (coarse particles) | Good | 10.9/100 |
| NO2 (nitrogen dioxide) | Good | 10.8/100 |
| O3 (ozone) | Good | 13.7/100 |
| SO2 (sulfur dioxide) | Good | 0.5/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 1.3/100 |
| PM1 (ultrafine particles) | Good | 13.3/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 28.5/100 |
| PM2.5 (fine particles) | Fair | 25.4/100 |
| PM10 (coarse particles) | Good | 14.9/100 |
| NO2 (nitrogen dioxide) | Fair | 28.5/100 |
| O3 (ozone) | Good | 14.1/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.6/100 |
| HCHO (formaldehyde) | Good | 2.0/100 |
| PM1 (ultrafine particles) | Fair | 27.3/100 |
Local Environmental Conditions
Around this location in Tobermory, traffic is light and there are few concentrated sources of air pollution. Breezes off the Georgian Bay usually help ventilate the area. Trees nearby help filter some particles from the air, though in hot weather they also emit compounds that feed ozone formation. Air arriving from elsewhere in the region adds to what is produced locally.
Ozone is the main concern in August, when sunny days averaging 21°C turn traffic and other emissions into ozone by mid-afternoon. In contrast, cold spells from November to April, at around -4°C on average, are when smoke from wood burning and traffic lingers longest. Stronger winds around December, about 30 km/h on average, usually bring some of the cleanest air of the year.
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Frequently Asked Questions About Air Quality in Ontario
Is air quality bad in Bruce Peninsula National Park right now?
On 10 October 2026, overall air quality in Bruce Peninsula National Park is good. AQI is the main air quality indicator at 17.3/100. Pollution peaks around 11:00 PM (PM2.5: 17.3/100).
Will air quality be worse tomorrow in Bruce Peninsula National Park?
On 11 October 2026, air quality conditions in Bruce Peninsula National Park will be worse than today, with AQI forecast at fair at 28.5/100. Pollution peaks around 4:00 PM (NO2: 28.5/100).
When is air pollution at its worst in Bruce Peninsula National Park?
Ozone is the main concern in August, when sunny days averaging 21°C turn traffic and other emissions into ozone by mid-afternoon. In contrast, cold spells from November to April, at around -4°C on average, are when smoke from wood burning and traffic lingers longest. Stronger winds around December, about 30 km/h on average, usually bring some of the cleanest air of the year.
Are air quality levels in Bruce Peninsula National Park 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. |