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National Weather Service officials issued an air quality alert set to expire at midnight Saturday for the Chicago and ...
Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.
Chicago experienced the worst air quality in the world on Thursday due to smoke from Canadian wildfires, which can trigger asthma attacks, strokes, and heart attacks, and people are advised to use ...
An Air Quality Alert was still in effect for a third straight day, but for a smaller portion of the Chicago area.
CHICAGO The Illinois Environmental Protection Agency (Illinois EPA) and the Illinois Department of Public Health (IDPH) are ...
The air quality unhealthy for sensitive groups.