Worst air pollution Calgary Tower - Calgary, today and tomorrow
Today (16 July): Air quality in Calgary Tower is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 35.5/100).
Tomorrow (17 July 2026): Air quality in Calgary Tower is fair. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 9:00 AM (O3: 48.7/100). 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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Calgary Tower's air quality reflects downtown Calgary's dense core, with Centre Street traffic contributing background emissions, though the elevated observation deck sits above street-level pollution.
Today - 16 July | Pollution peaks at 07:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
4.2/100
NO2 (nitrogen dioxide):
Fair
27.3/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
3.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
12.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Medium
48.7/100
PM2.5 (fine particles):
Good
16.8/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Fair
26.7/100
O3 (ozone):
Medium
48.7/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
17.1/100
Other Landmarks in Calgary
Sports venues in Calgary
Frequently Asked Questions
Is air quality bad in Calgary Tower right now?
On 16 July 2026, overall air quality in Calgary Tower is fair. AQI is the main air quality indicator at 35.5/100. Pollution peaks around 7:00 AM (O3: 35.5/100).
Will air quality be worse tomorrow in Calgary Tower?
On 17 July 2026, air quality conditions in Calgary Tower will be similar to today, with NO2 forecast at fair at 26.7/100. Pollution peaks around 9:00 AM (O3: 48.7/100).
When is air pollution at its worst in Calgary Tower?
Air quality at Calgary Tower shifts noticeably across the seasons, shaped by its downtown observation deck rising above Centre Street traffic. 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 Calgary Tower 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