AQHI now · Forest
All cities →1.9
Low health risk
Observed Fri 8:00 PM · Sarnia
- Tonight
- 2 Low risk
- Tomorrow
- 2 Low risk
- Tomorrow night
- 2 Low risk
Environment and Climate Change Canada · forecast issued Fri 5:00 PM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.52.4 µg/m³WHO guideline 15
PM102.6 µg/m³WHO guideline 45
NO₂3 µg/m³WHO guideline 25
O₃71 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 |
|---|---|---|
| 9 PM | 2.4 | 2.6 |
| 10 PM | 2.5 | 2.7 |
| 11 PM | 2.6 | 2.8 |
| 12 AM | 2.6 | 2.8 |
| 1 AM | 2.6 | 2.8 |
| 2 AM | 2.6 | 2.8 |
| 3 AM | 2.7 | 2.8 |
| 4 AM | 2.8 | 2.9 |
| 5 AM | 3 | 3.1 |
| 6 AM | 3.2 | 3.3 |
| 7 AM | 3.4 | 3.5 |
| 8 AM | 3.5 | 3.7 |