AQHI now · Trail
All cities →2
Low health risk
Observed Fri 8:00 PM · Castlegar
- 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
PM2.514.5 µg/m³WHO guideline 15
PM1015.6 µg/m³WHO guideline 45
NO₂5 µg/m³WHO guideline 25
O₃63 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Trail
TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Sat: weeds low · Sun: weeds low · Mon: 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 |
|---|---|---|
| 8 PM | 14.5 | 15.6 |
| 9 PM | 17.5 | 18.7 |
| 10 PM | 20.2 | 21.7 |
| 11 PM | 22.2 | 23.9 |
| 12 AM | 23.8 | 25.8 |
| 1 AM | 24.2 | 26.3 |
| 2 AM | 24.1 | 26.3 |
| 3 AM | 23.9 | 26.1 |
| 4 AM | 23.3 | 25.6 |
| 5 AM | 22.7 | 25 |
| 6 AM | 22.4 | 24.7 |
| 7 AM | 22 | 24.3 |