Canada, US warn of air quality hazards as Canadian fire smoke reaches Europe
- Hundreds of thousands of residents in four states are advised to stay indoors due to air quality alerts.
- The Environmental Protection Agency and the National Weather Service urged people to reduce exposure to outdoor air because of hazardous pollution levels.
- Smoke from wildfires has raised particulate pollution to hazardous levels, posing health risks for sensitive groups.
- Smoke from the wildfires has reached Europe, likely causing hazy skies and reddish-orange sunsets, though it will not significantly impact surface air quality.
257 Articles
257 Articles
One thing we can count on to keep ruining our summers
Smoke from Canadian wildfires dims the downtown skyline on June 3, 2025, in Chicago. Smoke from wildfires in Canada is once again shrouding parts of the United States — cities like Chicago and Milwaukee — with unhealthy air, according to the US Environmental Protection Agency. Parts of the plume have reached as far as Europe. The bulk of the smoke is forecasted to drift eastward across North America and thin out. As of Thursday afternoon, Cana…
Massive fires in Canada have worsened air quality in North America. But it's also having an impact far beyond the continent. The smoke has spread as far as Sweden.
Smoke from forest fires on the Canadian prairies will significantly reduce Quebec's air quality in the coming days. How can we protect ourselves from particles?
Travelling to the US? Canada's US travel advisory has a surprisingly intense warning
Although the number of Canadians travelling to the United States has dropped since March, many are still planning late-spring and early-summer trips across the border. Whether you're heading stateside to shop, visit family or take a vacation, it's important to be aware of Canada's travel advisory for the U.S. — and it's pretty dramatic.
State officials recommend continued precautions today, Thursday, as ground-level ozone remains at unhealthy levels.
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