AQHI now · Forest
All cities →1.4
Low health risk
Observed Sun 1:00 AM · Sarnia
- Saturday night
- 2 Low risk
- Today
- 2 Low risk
- Tonight
- 2 Low risk
Environment and Climate Change Canada · forecast issued Sat 5:00 PM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.52.2 µg/m³WHO guideline 15
PM102.3 µg/m³WHO guideline 45
NO₂11 µg/m³WHO guideline 25
O₃39 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Particles · next 12 hours
µg/m³| Time | PM2.5 | PM10 |
|---|---|---|
| 2 AM | 2.2 | 2.3 |
| 3 AM | 2.2 | 2.3 |
| 4 AM | 2.2 | 2.3 |
| 5 AM | 2.2 | 2.3 |
| 6 AM | 2.2 | 2.3 |
| 7 AM | 2.2 | 2.4 |
| 8 AM | 2.6 | 2.9 |
| 9 AM | 2.5 | 2.8 |
| 10 AM | 2.3 | 2.6 |
| 11 AM | 2 | 2.2 |
| 12 PM | 1.8 | 2 |
| 1 PM | 1.9 | 2.1 |