AQHI now · Nepean
All cities →1.6
Low health risk
Observed Thu 5:00 PM · Ottawa
- 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
PM2.54.7 µg/m³WHO guideline 15
PM104.8 µg/m³WHO guideline 45
NO₂14 µg/m³WHO guideline 25
O₃71 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Nepean
TreesNonenone in the air
GrassModerate11 grains/m³
WeedsHigh142 grains/m³ · Ragweed
Fri: weeds high · Sat: weeds high · Sun: weeds high
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 |
|---|---|---|
| 6 PM | 4.7 | 4.8 |
| 7 PM | 7 | 7 |
| 8 PM | 10.4 | 10.5 |
| 9 PM | 14.1 | 14.2 |
| 10 PM | 16.2 | 16.2 |
| 11 PM | 17.8 | 17.9 |
| 12 AM | 18.9 | 19 |
| 1 AM | 18.7 | 18.8 |
| 2 AM | 15.8 | 15.8 |
| 3 AM | 10.1 | 10.2 |
| 4 AM | 6 | 6 |
| 5 AM | 3.6 | 3.7 |