AQHI now · Toronto
All cities →1.9
Low health risk
Observed Thu 7:00 AM · Toronto Downtown
- Today
- 2 Low risk
- Tonight
- 2 Low risk
- Tomorrow
- 2 Low risk
- Tomorrow night
- 2 Low risk
Environment and Climate Change Canada · forecast issued Thu 6:00 AM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.53.9 µg/m³WHO guideline 15
PM103.9 µg/m³WHO guideline 45
NO₂20 µg/m³WHO guideline 25
O₃28 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Toronto
TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Fri: weeds low · Sat: weeds low · Sun: 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 |
|---|---|---|
| 7 AM | 3.9 | 3.9 |
| 8 AM | 5.6 | 5.6 |
| 9 AM | 5.2 | 5.2 |
| 10 AM | 4.6 | 4.6 |
| 11 AM | 5.2 | 5.2 |
| 12 PM | 5.2 | 5.2 |
| 1 PM | 4.6 | 4.7 |
| 2 PM | 4.6 | 4.6 |
| 3 PM | 5 | 5.2 |
| 4 PM | 6.1 | 6.3 |
| 5 PM | 6.9 | 7.1 |
| 6 PM | 7.8 | 7.9 |