AQHI now · Hamilton
All cities →1.3
Low health risk
Observed Thu 10:00 AM · Hamilton Downtown
- Today
- 2 Low risk
- Today
- 2 Low risk
- Today
- 2 Low risk
- Today
- 2 Low risk
Environment and Climate Change Canada · forecast issued Thu 6:00 AM
Health advice now
- People at risk
- Enjoy your usual outdoor activities.
- Everyone else
- Ideal air quality for outdoor activities.
Pollutants now
PM2.54.8 µg/m³WHO guideline 15
PM104.9 µg/m³WHO guideline 45
NO₂17 µg/m³WHO guideline 25
O₃50 µg/m³WHO guideline 100
Model estimates from WeatherAPI.com; WHO 24-hour guidelines (8-hour for ozone).
Particles · next 12 hours
µg/m³| Time | PM2.5 | PM10 |
|---|---|---|
| 11 AM | 4.8 | 4.9 |
| 12 PM | 5 | 5.2 |
| 1 PM | 5.3 | 5.5 |
| 2 PM | 5.6 | 5.9 |
| 3 PM | 6 | 6.3 |
| 4 PM | 6.2 | 6.6 |
| 5 PM | 6.5 | 6.9 |
| 6 PM | 6.8 | 7.1 |
| 7 PM | 8.1 | 8.5 |
| 8 PM | 13 | 13.3 |
| 9 PM | 14.4 | 14.8 |
| 10 PM | 12.5 | 12.7 |