Quebec, Canada
Ct 0027 · Air quality
Sunday, Oct 25 · America/Toronto
Ct 0027 air quality
US air quality index
63Moderate
US EPA scale
- Good0–50
- Moderate51–100Current category
- Unhealthy for sensitive groups101–150
- Unhealthy151–200
- Very unhealthy201–300
- Hazardous301–500+
A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.
Understand the EPA scaleAll pollutants
- PM1
- 24 µg/m³
- PM2.5
- 22.6 µg/m³
- PM10
- 25 µg/m³
- Ozone
- 14.4 µg/m³
- Nitrogen dioxide
- 33 µg/m³
- Sulfur dioxide
- 11.7 µg/m³
- Carbon monoxide
- 375 µg/m³
- European AQI (separate scale)
- 2