Worst air pollution Blue Mountain - Collingwood, today and tomorrow

Today (16 July): Air quality in Blue Mountain is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 37.5/100).
Tomorrow (17 July 2026): Air quality in Blue Mountain is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 30.7/100). 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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Blue Mountain's air quality benefits from its elevated Niagara Escarpment position above Georgian Bay, with winter ski tourism traffic the primary seasonal local source amid otherwise clean rural conditions.

Today - 16 July | Pollution peaks at 09:00

AQI:

Fair

37.5/100

PM2.5 (fine particles):

Good

10.9/100

PM10 (coarse particles):

Good

5.5/100

NO2 (nitrogen dioxide):

Good

10.6/100

O3 (ozone):

Fair

37.5/100

SO2 (sulfur dioxide):

Good

1.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

5.0/100

PM1 (ultrafine particles):

Good

9.7/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 08:00

AQI:

Fair

30.7/100

PM2.5 (fine particles):

Good

9.5/100

PM10 (coarse particles):

Good

3.8/100

NO2 (nitrogen dioxide):

Good

10.0/100

O3 (ozone):

Fair

30.7/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.3/100

PM1 (ultrafine particles):

Good

7.7/100

Other Landmarks in Collingwood

Sports venues in Collingwood

Frequently Asked Questions

Is air quality bad in Blue Mountain right now?

On 16 July 2026, overall air quality in Blue Mountain is fair. AQI is the main air quality indicator at 37.5/100. Pollution peaks around 9:00 AM (O3: 37.5/100).

Will air quality be worse tomorrow in Blue Mountain?

On 17 July 2026, air quality conditions in Blue Mountain will be similar to today, with AQI forecast at fair at 30.7/100. Pollution peaks around 8:00 AM (O3: 30.7/100).

When is air pollution at its worst in Blue Mountain?

Air quality in Blue Mountain shifts noticeably across the seasons, shaped by its ski slopes rising above Collingwood's Georgian Bay shoreline. Winter brings heavy lake-effect snow off Georgian Bay or Lake Huron, which can temporarily reduce visibility, while summer air is generally clean apart from occasional haze on hot, humid days. Air pollution levels themselves stay comparatively low year-round, even when the weather itself turns severe.

Are air quality levels in Blue Mountain 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.

Check air quality in other popular cities:

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