OrbisViews

Air quality · Canada

Toronto Air Quality (AQI) Now

22 Fair
European Air Quality Index
PM2.5
1.7µg/m³WHO limit 15
PM10
1.8µg/m³WHO limit 45
NO₂
7.4µg/m³
O₃
64µg/m³
Desert dust
0µg/m³
UV index
0.0
US AQI
34

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in Toronto is fair right now: European Air Quality Index 22. Fine particulate matter (PM2.5) is 1.7 µg/m³, below the WHO guideline. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise. Pollution is expected to peak around 11:00 over the next 48 hours (index 30, fair).

Toronto 48-hour air quality forecast

08:00: 2608:0009:00: 2710:00: 2911:00: 3012:00: 3013:00: 2914:00: 2714:0015:00: 2416:00: 2017:00: 1918:00: 2219:00: 2420:00: 2520:0021:00: 2422:00: 2323:00: 2200:00: 2201:00: 2102:00: 2102:0003:00: 2204:00: 2305:00: 2406:00: 2407:00: 2408:00: 2408:0009:00: 2410:00: 2511:00: 2612:00: 2713:00: 2814:00: 2814:0015:00: 2816:00: 2817:00: 2718:00: 2519:00: 2420:00: 2220:0021:00: 2622:00: 2923:00: 30

Air quality near Toronto

Cleanest to most polluted.

Frequently asked questions

Is Toronto polluted today?
Air quality in Toronto is fair right now: European Air Quality Index 22. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise.
Is it safe to exercise outdoors in Toronto today?
Yes, air quality is fair right now; fine for outdoor exercise.
How is the air quality index calculated?
The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

Toronto air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 7.4 µg/m³ and ozone (O₃) 64 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).