CAAs of July 15, 2026, Toronto has been ranked as having the worst air quality globally due to smoke from wildfires in northwestern Ontario. The assessment comes from IQAir, a Swiss-based air quality monitoring company, which placed Toronto above cities such as Kinshasa, Delhi, Dubai, and Jerusalem. Environment Canada issued a yellow air quality warning, noting that much of southern Ontario is affected by the smoke, which could linger into Thursday. Health advisories warn of potential respiratory issues, particularly for vulnerable groups such as the elderly, pregnant individuals, children, and those with pre-existing conditions. In addition to the air quality concerns, a prolonged heatwave has been affecting the Greater Toronto Area, with high temperatures and humidex values reaching up to 45°C in parts of southern Ontario.
Bias read (Center): The article presents factual data regarding air quality rankings and health advisories without overtly favoring any political perspective. It includes quotes from Environment Canada and references IQAir, providing balanced information on the environmental and health impacts of the situation. There's
