Air quality alert issued for Chicago, area suburbs

An air quality alert was issued early Monday for the Chicago area, urging people with respiratory problems to stay indoors.

The alert was issued at 2:24 a.m. Monday and lasts through midnight Tuesday, the National Weather Service said. Counties included in the alert panned across Cook, DuPage, Kane, Kendall, Grundy, Lake, McHenry and Will.

Such warnings are called when ozone or particulate levels—or both—are expected to be at or above the allotted level for people with asthma or other respiratory diseases, the weather service said.


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