AQHI now · Forest Hills
All cities →1.9
Low health risk
Observed Thu 12:00 PM · Lake Major
- 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
PM2.513.4 µg/m³WHO guideline 15
PM1018.2 µg/m³WHO guideline 45
NO₂4 µg/m³WHO guideline 25
O₃84 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Forest Hills
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 |
|---|---|---|
| 12 PM | 13.4 | 18.2 |
| 1 PM | 13.4 | 18.4 |
| 2 PM | 12.9 | 17.8 |
| 3 PM | 12.1 | 16.8 |
| 4 PM | 11.3 | 15.8 |
| 5 PM | 10.3 | 14.7 |
| 6 PM | 9.5 | 13.8 |
| 7 PM | 8.9 | 13.2 |
| 8 PM | 8.6 | 12.8 |
| 9 PM | 8.4 | 12.8 |
| 10 PM | 8.6 | 13.3 |
| 11 PM | 8.8 | 13.9 |