What is the air quality in Sault Ste. Marie?

Sault Ste. Marie, Canada has an annual US AQI of 37 (Reasonable) and average PM2.5 of 6.4 µg/m³, ranking #184 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Sault Ste. Marie?

October is typically the cleanest month (AQI 29) and July the most polluted (AQI 43).

Where does Sault Ste. Marie's air quality data come from?

PM2.5: 1998–2024 (monitors 2000–2001, satellite 1998–1999, 2001–2024). Measured by government monitoring stations. Full sources are on the methodology page.

Sault Ste. Marie, Canada — Air Quality & Clean City Guide 2026

Sault Ste. Marie Air Quality Data

Global rank	City	Continent	AQI	PM2.5
184	Sault Ste. Marie, Canada	North America	AQI 37	PM2.5 6.4 µg/m³