Toronto — Air Quality

Canada, North America. US AQI: 51 (Moderate). Air Quality Score: 93.0/100. Dominant pollutant: O3.

Last updated: · Updated hourly

Quanteta Scores

US AQI 0 Rank 26 / 50
Air Quality Score 0/100 Rank 12 / 50
Breathability 0/100 Rank 12 / 50

City Info

City ID
aq-toronto
Country
Canada (CA)
Region
North America
Population
2,930,000
Coordinates
43.6532, -79.3832
Timezone
America/Toronto
AQI Level
Moderate
EU AQI
35
Dominant Pollutant
O3
Measured At
2026-07-12T14:00Z

Pollutant Concentrations

Pollutant Concentration
PM2.5 4.2 μg/m³
PM10 4.3 μg/m³
O3 Dominant 88.0 μg/m³
NO2 6.6 μg/m³
SO2 3.1 μg/m³
CO 184.0 μg/m³
PM2.5: 1.4% PM10: 1.5% O3: 30.3% NO2: 2.3% SO2: 1.1% CO: 63.4% Air Quality