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Wildfire Smoke Pushes Toronto's AQI to Third-Worst Worldwide

SOUTHERN ONTARIO, JUL 31 – Environment Canada warns vulnerable groups to limit outdoor activities as Toronto's air quality health index hits high risk level of 7 before improving Thursday.

  • Toronto's Air Quality Health Index rating reached eight, indicating 'high risk' from wildfire smoke on Thursday morning, as reported by The Canadian Press.
  • Environment Canada issued a special air quality statement due to smoke from forest fires in the Prairies drifting into southern Ontario.
  • Air quality is expected to improve from north to south, dropping to a moderate risk by Thursday night, according to Environment Canada.
  • People are encouraged to wear NIOSH-certified masks outdoors and limit outdoor activities to reduce health risks during this period.
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Prairies wildfire smoke prompts special air quality statement for southern Ontario

A special air quality statement has been issued for parts of southern Ontario, triggered by wildfire smoke from the Prairies.

·Kelowna, Canada
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City News broke the news in Toronto, Canada on Thursday, July 31, 2025.
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