What is the air quality in Halifax?

Halifax, Canada has an annual US AQI of 34 (Reasonable) and average PM2.5 of 5.7 µg/m³, ranking #112 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Halifax?

October is typically the cleanest month (AQI 29) and July the most polluted (AQI 41).

Where does Halifax's air quality data come from?

PM2.5: 1998–2026 (monitors 2006–2026, satellite 1998–2007, 2009–2013, 2023; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Halifax, Canada — Air Quality & Clean City Guide 2026

Halifax Air Quality Data

Global rank	City	Continent	AQI	PM2.5
112	Halifax, Canada	North America	AQI 34	PM2.5 5.7 µg/m³