AQHI now · Ottawa
All cities →1.7
Low health risk
Observed Fri 3:00 AM · Ottawa
- Thursday night
- 2 Low risk
- Today
- 2 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
PM2.56 µg/m³WHO guideline 15
PM106 µg/m³WHO guideline 45
NO₂12 µg/m³WHO guideline 25
O₃36 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Ottawa
TreesNonenone in the air
GrassLow<1 grains/m³
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 |
|---|---|---|
| 4 AM | 6 | 6 |
| 5 AM | 6.1 | 6.1 |
| 6 AM | 6.6 | 6.7 |
| 7 AM | 7.8 | 7.9 |
| 8 AM | 8.6 | 8.6 |
| 9 AM | 9 | 9.1 |
| 10 AM | 8.8 | 8.8 |
| 11 AM | 8.4 | 8.5 |
| 12 PM | 8.3 | 8.3 |
| 1 PM | 7.9 | 8 |
| 2 PM | 7.2 | 7.3 |
| 3 PM | 7.1 | 7.2 |