AQHI now · Downtown St. John's
All cities →2
Low health risk
Observed Thu 8:30 PM · St. John's
- Tonight
- 2 Low risk
- Tomorrow
- 2 Low risk
- Tomorrow night
- 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
PM2.57 µg/m³WHO guideline 15
PM1010.9 µg/m³WHO guideline 45
NO₂4 µg/m³WHO guideline 25
O₃67 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 |
|---|---|---|
| 8 PM | 7 | 10.9 |
| 9 PM | 7.3 | 11.4 |
| 10 PM | 7.7 | 12.1 |
| 11 PM | 7.6 | 12 |
| 12 AM | 7.4 | 11.8 |
| 1 AM | 7.3 | 11.8 |
| 2 AM | 7.1 | 11.3 |
| 3 AM | 7.1 | 11.4 |
| 4 AM | 7.1 | 11.2 |
| 5 AM | 7.5 | 12 |
| 6 AM | 7.2 | 11.5 |
| 7 AM | 6.9 | 10.9 |