Toronto vs Montreal

Live AQI Comparison

Updated 39m ago · Data from OpenAQ

Toronto

Canada

Good

PM2.54 µg/m³

PM10—

Montreal

Canada

Good

PM2.58.4 µg/m³

PM10—

Verdict

Montreal currently has worse air quality than Toronto (AQI 18 points higher). Both cities have acceptable air quality levels.

Toronto vs Montreal Air Quality Analysis

Based on the latest measurements, Montreal has an AQI of 35 compared to Toronto's AQI of 17. The World Health Organization (WHO) recommends annual PM2.5 levels below 15 µg/m³ and 24-hour levels below 45 µg/m³.

PM2.5 levels in both cities are within WHO guidelines. Outdoor activities can be enjoyed without air quality concerns.

Air quality can change rapidly due to weather patterns, traffic, and industrial activity. Check back hourly for the latest comparison between Toronto and Montreal.

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Toronto Air Quality →

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Montreal Air Quality →

Frequently Asked Questions

Which city has worse air quality today, Toronto or Montreal?

Montreal currently has worse air quality with an AQI of 35 compared to Toronto's AQI of 17. This data is updated hourly from government monitoring stations.

Is it safer to be in Toronto or Montreal right now?

Based on current AQI levels, Toronto (AQI 17) has safer air quality than Montreal (AQI 35). Both cities have acceptable air quality for outdoor activities.

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