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Air-quality alert in Chicago area extended to Wed.
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ABC7 Chicago's Air Quality Tracker provides real-time updates on the latest air quality data available from government monitors across the region. ... The air quality index breaks down ...
As of Thursday morning, Chicago, Detroit and Washington, D.C. were ranked as the three cities with the worst air quality in the world, according to IQ Air's Air Quality Index.
The World Air Quality Index reported, Chicago had the worst air quality on Tuesday. That group marked Chicago's air "unhealthy," and in the red zone. According to CBS 2 meteorologists, ...
By 12:30 p.m., the Air Quality Index had reached unhealthy levels in the entire Chicago area, with AirNow.gov showing the city with an AQI of 163, the north and west suburbs with an AQI of 158 ...
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