AQHI now · Port Colborne
All cities →1
Low health risk
Observed Sat 10:00 PM · St. Catharines
- Tonight
- 2 Low risk
- Tomorrow
- 2 Low risk
- Tomorrow night
- 2 Low risk
Environment and Climate Change Canada · forecast issued Sat 5:00 PM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.51.7 µg/m³WHO guideline 15
PM101.7 µg/m³WHO guideline 45
NO₂6 µg/m³WHO guideline 25
O₃53 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Pollen today · Port Colborne
TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Sun: weeds low · Mon: weeds low · Tue: 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 |
|---|---|---|
| 10 PM | 1.7 | 1.7 |
| 11 PM | 1.5 | 1.5 |
| 12 AM | 1.5 | 1.8 |
| 1 AM | 1.7 | 2.2 |
| 2 AM | 1.8 | 2.3 |
| 3 AM | 1.8 | 2.3 |
| 4 AM | 1.5 | 1.7 |
| 5 AM | 1.4 | 1.4 |
| 6 AM | 1.7 | 1.8 |
| 7 AM | 2.2 | 2.3 |
| 8 AM | 2.4 | 2.5 |
| 9 AM | 2.4 | 2.6 |