What is the air quality in Ajax?

Ajax, Canada has an annual US AQI of 46 (Reasonable) and average PM2.5 of 8.8 µg/m³, ranking #511 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Ajax?

October is typically the cleanest month (AQI 38) and July the most polluted (AQI 54).

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
511	Ajax, Canada	North America	AQI 46	PM2.5 8.8 µg/m³