The heat warning issued last Friday for the Ottawa-Gatineau region should last until Thursday night, according to Environment ...

Wildfire season is upon us once again, and smoke is reducing air quality through swaths of the country. Environment Canada ...

Wildfire season is upon us, and smoke is reducing air quality through swaths of the country. Environment Canada suggests ...

Windsor-Essex, Chatham-Kent and Sarnia-Lambton can all expect elevated air pollution levels again Tuesday. Environment and ...

In Canada, the Air Quality Health Index (AQHI) is a scale developed to help people understand what the current air quality means for your health. It is an initiative among Environment Canada, Health ...

Environment Canada is warning of poor air quality and extreme heat in Toronto on Monday as southern Ontario braces for a week ...

As extreme heat continues to cast over the city of Toronto, Environment Canada is warning of poor air quality on Monday.

Toronto and the GTA are under a heat wave and poor air quality warning issued by Environment Canada on July 14, 2025, due to ...

The air quality in Montreal on Tuesday morning was ranked the sixth worst in the world for major cities by IQAir.

The Air Quality Health Index is expected to be as high as seven, or high risk, according to Environment Canada.