What is the air quality in Mississauga?

Mississauga, Canada has an annual US AQI of 44 (Reasonable) and average PM2.5 of 8.3 µg/m³, ranking #427 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Mississauga?

October is typically the cleanest month (AQI 36) and July the most polluted (AQI 52).

Where does Mississauga's air quality data come from?

PM2.5: 1998–2026 (monitors 2004–2026, satellite 1998–2004; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Mississauga, Canada — Air Quality & Clean City Guide 2026

Mississauga Air Quality Data

Global rank	City	Continent	AQI	PM2.5
427	Mississauga, Canada	North America	AQI 44	PM2.5 8.3 µg/m³