AQHI now · Legacy
All cities →3
Low health risk
Observed Wed 3:00 AM · Calgary
- Tuesday night
- 4 Moderate risk
- Today
- 3 Low risk
- Tonight
- 3 Low risk
Environment and Climate Change Canada · forecast issued Tue 5:00 PM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.528.2 µg/m³WHO guideline 15
PM1030.4 µg/m³WHO guideline 45
NO₂54 µg/m³WHO guideline 25
O₃8 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Legacy
TreesNonenone in the air
GrassLow<1 grains/m³
WeedsModerate11 grains/m³ · Ragweed
Thu: weeds moderate · Fri: weeds low · Sat: weeds low
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.
Particles · next 12 hours
µg/m³| Time | PM2.5 | PM10 |
|---|---|---|
| 4 AM | 28.2 | 30.4 |
| 5 AM | 26.4 | 28.4 |
| 6 AM | 24.2 | 25.8 |
| 7 AM | 21.4 | 22.7 |
| 8 AM | 18.8 | 19.8 |
| 9 AM | 23.2 | 24.3 |
| 10 AM | 26.3 | 27.5 |
| 11 AM | 22.1 | 23.2 |
| 12 PM | 16.1 | 16.9 |
| 1 PM | 13.8 | 14.4 |
| 2 PM | 12.6 | 13.1 |
| 3 PM | 12.9 | 13.4 |