toronto canada air quality

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Air Quality Alert continues

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· 19h · on MSN

Air quality alerts issued in Canada and US as wildfires continue to burn

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

· 1d

Canadian Wildfire Smoke Triggers More Air Quality Alerts in Canada and U.S.

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Live: Toronto air quality one of the worst in the world as alert issued for city, GTA

· 1d

Wildfire smoke blankets Toronto, sets off air quality warning

Drone video captured wildfire smoke blanketing the skyline in Toronto, Canada on Monday (July 14).

· 1d

DEC issues air quality advisory for Adirondacks, Central New York

MLive · 1d

Air quality alert active for Michigan until early Wednesday

MLive · 19h

Air quality alert in place for West Michigan until early Thursday

· 21h

Today’s Air Quality: Unhealthy for sensitive groups

· 23h

Air quality alert in effect for Jefferson, Lewis, St. Lawrence counties

Why Toronto residents still aren’t safe from wildfire smoke indoors

Environment Canada urges residents to limit their time outdoors. But even when inside, most buildings can only reduce airborne pollutants by half.

Toronto’s air quality among worst in the world today

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.

10hon MSN

What you need to know to understand air quality warnings in Canada

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.

1don MSN

City installing AC units for seniors as Toronto sizzles under another heat warning

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.

1don MSN

Canada wildfire smoke triggers heat wave and poor air quality warnings in Toronto and the GTA; check who are at risk

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.