AQHI now · Willowdale
All cities →1
Low health risk
Observed Fri 4:00 AM · Lake Major
- Thursday night
- 2 Low risk
- Today
- 2 Low risk
- Tonight
- 2 Low risk
Environment and Climate Change Canada · forecast issued Thu 5:00 PM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.55.8 µg/m³WHO guideline 15
PM107.7 µg/m³WHO guideline 45
NO₂6 µg/m³WHO guideline 25
O₃55 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Willowdale
TreesNonenone in the air
GrassLow1 grains/m³
WeedsModerate26 grains/m³ · Ragweed
Sat: weeds high · Sun: weeds high · Mon: weeds high
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 |
|---|---|---|
| 5 AM | 5.8 | 7.7 |
| 6 AM | 3.6 | 4.7 |
| 7 AM | 2.4 | 3.2 |
| 8 AM | 2.1 | 2.7 |
| 9 AM | 2.4 | 3.1 |
| 10 AM | 2.6 | 3.5 |
| 11 AM | 3.1 | 4.2 |
| 12 PM | 3.5 | 4.7 |
| 1 PM | 3.4 | 4.7 |
| 2 PM | 3.7 | 5 |
| 3 PM | 3.7 | 4.8 |
| 4 PM | 3.2 | 4.3 |