AQHI now · Ayr
All cities →2.5
Low health risk
Observed Thu 3:00 PM · Kitchener
- Today
- 1 Low risk
- Today
- 1 Low risk
- Today
- 1 Low risk
- Today
- 1 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
PM2.55.2 µg/m³WHO guideline 15
PM105.7 µg/m³WHO guideline 45
NO₂4 µg/m³WHO guideline 25
O₃82 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 |
|---|---|---|
| 4 PM | 5.2 | 5.7 |
| 5 PM | 5.4 | 6 |
| 6 PM | 5.5 | 6 |
| 7 PM | 8.7 | 9.2 |
| 8 PM | 13.5 | 14 |
| 9 PM | 13.6 | 14 |
| 10 PM | 9.1 | 9.4 |
| 11 PM | 5 | 5.2 |
| 12 AM | 2.9 | 3 |
| 1 AM | 2 | 2.1 |
| 2 AM | 1.6 | 1.6 |
| 3 AM | 1.3 | 1.4 |