AQHI now · Toronto
All cities →2.8
Low health risk
Observed Tue 5:00 PM · Toronto Downtown
- Tonight
- 3 Low risk
- Tomorrow
- 3 Low risk
- Tomorrow night
- 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
PM2.511.3 µg/m³WHO guideline 15
PM1013 µg/m³WHO guideline 45
NO₂31 µg/m³WHO guideline 25
O₃56 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Toronto
TreesNonenone in the air
GrassLow<1 grains/m³
WeedsLow<1 grains/m³ · Ragweed
Wed: weeds low · Thu: weeds low · Fri: 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 |
|---|---|---|
| 6 PM | 11.3 | 13 |
| 7 PM | 11.6 | 13.3 |
| 8 PM | 11.8 | 13.4 |
| 9 PM | 11.6 | 13.2 |
| 10 PM | 11.2 | 12.7 |
| 11 PM | 10.3 | 11.4 |
| 12 AM | 9.3 | 10.4 |
| 1 AM | 8.7 | 9.9 |
| 2 AM | 8.2 | 9.4 |
| 3 AM | 7.8 | 8.9 |
| 4 AM | 7.5 | 8.4 |
| 5 AM | 7.4 | 8.3 |