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 Canada and the provincial governments.

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

Toronto and the GTA are under a heat wave and poor air quality warning issued by Environment Canada on July 14, 2025, due to wildfire smoke from northern Ontario. The poor air quality is expected to persist from Monday into Tuesday.

There’s a layer of haze in the air, as smoke from burning wildfires has blown into southern Ontario. And according to the World Air Quality Index website, Toronto is one of the worst places in the world right now for air quality.

World Cup being hosted by Canada, Mexico and the United States is less than a year away and FIFA’s protocols for matches affected by wildfire smoke remain unclear.

The poor air quality that has blanketed swaths of central and Western Canada is not only infiltrating the lungs, but also distressing the mind.

The City of Toronto is providing free portable air conditioners to low-income, vulnerable seniors as part of a pilot program that started this spring.