Worst air pollution Bowness - Calgary, today and tomorrow
Today (20 September): Air quality in Bowness is poor. AQI and NO2 are poor; PM2.5 is moderate; PM10 and O3 are fair; SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (NO2: 75.4/100).
Tomorrow (21 September 2026): Air quality in Bowness is poor. All pollutants stay as today. Pollution peaks around 2:00 PM (NO2: 79.4/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Bowness's air quality benefits from its Bow River park setting, with Trans-Canada Highway traffic nearby the primary local source.
Today - 20 September | Pollution peaks at 16:00
AQI:
Poor
75.4/100
PM2.5 (fine particles):
Moderate
47.0/100
PM10 (coarse particles):
Fair
30.6/100
NO2 (nitrogen dioxide):
Poor
75.4/100
O3 (ozone):
Fair
23.6/100
SO2 (sulfur dioxide):
Good
6.0/100
CO (carbon monoxide):
Good
1.3/100
HCHO (formaldehyde):
Good
10.3/100
PM1 (ultrafine particles):
Good
14.0/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 14:00
AQI:
Poor
79.4/100
PM2.5 (fine particles):
Moderate
48.4/100
PM10 (coarse particles):
Fair
34.3/100
NO2 (nitrogen dioxide):
Poor
79.4/100
O3 (ozone):
Fair
30.3/100
SO2 (sulfur dioxide):
Good
7.1/100
CO (carbon monoxide):
Good
1.4/100
HCHO (formaldehyde):
Good
11.3/100
PM1 (ultrafine particles):
Good
12.3/100
Other Landmarks in Calgary
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Frequently Asked Questions
Is air quality bad in Bowness right now?
On 20 September 2026, overall air quality in Bowness is poor. AQI is the main air quality indicator at 75.4/100. Pollution peaks around 4:00 PM (NO2: 75.4/100).
Will air quality be worse tomorrow in Bowness?
On 21 September 2026, air quality conditions in Bowness will be similar to today, with AQI forecast at poor at 79.4/100. Pollution peaks around 2:00 PM (NO2: 79.4/100).
When is air pollution at its worst in Bowness?
Seasonal air quality in Bowness is closely linked to its Bow River park setting near the Trans-Canada Highway. Winter's sudden chinook winds can melt snow and clear the air within hours, while summer heat and wildfire smoke drifting from the Rockies occasionally push pollution higher. These warm winter winds are one of the most distinctive features of the local climate.
Are air quality levels in Bowness 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.
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Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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