Heavy smoke from Canada wildfires trigger US health warnings | ABC NEWS

Heavy smoke from Canadian wildfires has blanketed large swathes of North America, prompting health warnings about air quality. US officials are urging residents to stay indoors wherever possible, or wear masks, and avoid the acrid, unhealthy air. Subscribe: http://ab.co/1svxLVE
Read more here: https://www.abc.net.au/news/2026-07-17/wildfire-smoke-crosses-into-us-prompting-stay-indoors-warnings/106926672

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