Smoke from Canadian wildfires is causing hazardous air quality in U.S. cities like Detroit, Chicago, and Pittsburgh, with warnings in effect across the Midwest.
City in focus: Chicago’s air quality was the worst globally at one point, with an “unhealthy” rating as of 9 a.m. local time.
* Several U.S. cities, including Pittsburgh, have been blanketed in a thick haze moving from Erie and the Great Lakes region.
Air quality fluctuation: Michigan’s air quality is expected to fluctuate this week between “unhealthy for sensitive groups” and “unhealthy for everyone”, according to Michigan Radio.
* An official with the American Lung Association has warned all residents to take precautions.
Warnings issued: A code red air quality alert issued by the Pennsylvania Department of Environmental Protection is in effect for several counties all day Wednesday.
* The overall effect of the Canadian wildfires on U.S. air quality is significant, prompting numerous warnings and alerts.
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