The Chicago-Naperville area was graded "F," as more than 2 million Illinois children experienced unhealthy air, according to ...

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Air quality was impacted in a big way by Canadian wildfire smoke in the Chicago area Thursday, but how long could that smoke stick around? It will last for at least one more day, as the entire Chicago ...

City officials are scrambling to install nearly 300 high-quality air pollution sensors across Chicago, a network that would be the largest in the U.S. and one of the biggest worldwide. The plan is to ...

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day. According to its latest updates, the NWS extended the alert in McHenry, Lake, Kane, DuPage, ...

Wildfire smoke will keep skies hazy across Chicago despite otherwise pleasant weather. An air pollution action day is in effect today and may be extended through the weekend. Temperatures will stay ...

An air quality alert was issued for the Chicago area through midnight on Wednesday due to lingering Canadian wildfire smoke. According to AirNow, Chicago is under "moderate" air quality. Residents are ...

Add Yahoo as a preferred source to see more of our stories on Google. Pollution from Chicago area bumps Milwaukee's air quality down to moderate Milwaukee's air quality is moderately poor this week ...

City officials are scrambling to install nearly 300 high-quality air pollution sensors across Chicago, a network that would be the largest in the U.S. and one of the biggest worldwide. The plan is to ...