AQHI now · Trail
All cities →3
Low health risk
Observed Fri 1:00 AM · Castlegar
- Thursday night
- 2 Low risk
- Today
- 1 Low risk
- Tonight
- 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
PM2.52 µg/m³WHO guideline 15
PM102.1 µg/m³WHO guideline 45
NO₂2 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
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 |
|---|---|---|
| 2 AM | 2 | 2.1 |
| 3 AM | 1.6 | 1.7 |
| 4 AM | 1.2 | 1.3 |
| 5 AM | 1 | 1.1 |
| 6 AM | 0.9 | 1 |
| 7 AM | 0.9 | 1 |
| 8 AM | 0.6 | 0.7 |
| 9 AM | 0.6 | 0.7 |
| 10 AM | 0.7 | 0.8 |
| 11 AM | 0.7 | 0.9 |
| 12 PM | 1.3 | 1.6 |
| 1 PM | 2.9 | 3.4 |