What is the air quality in Laval?

Laval, Canada has an annual US AQI of 48 (Reasonable) and average PM2.5 of 9.3 µg/m³, ranking #615 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Laval?

April is typically the cleanest month (AQI 41) and February the most polluted (AQI 56).

Where does Laval's air quality data come from?

PM2.5: 1998–2026 (monitors 2003–2026, satellite 1998–2003, 2008, 2023; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Laval, Canada — Air Quality & Clean City Guide 2026

Laval Air Quality Data

Global rank	City	Continent	AQI	PM2.5
615	Laval, Canada	North America	AQI 48	PM2.5 9.3 µg/m³