Air quality plummets in 20 US states as smoke from Canadian wildfires spreads
health
The Guardian reports that smoke from wildfires burning in Canada is blanketing more than twenty U.S. states, triggering air quality alerts expected to affect millions of Americans this week. Over one hundred eighty active wildfires in northern Ontario are fueling the haze, with Chicago, Detroit, and Minneapolis experiencing some of the world's worst air quality according to global rankings. Authorities are urging people in affected areas to stay indoors until the air improves.
Source: https://www.theguardian.com/us-news/2026/jul/16/smoke-can...
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