Milwaukee, Ozaukee, Racine, Kenosha and Sheboygan are all under a poor air quality alert from noon to 11 p.m., according to ...

The Illinois EPA declared an Air Pollution Action Day in the Chicago metro area. See today's air quality index forecast for Illinois.

An Air Quality Alert has been issued for Koochiching County and the northern portion of St. Louis County, in effect until 1 ...

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

With wildfire smoke in the forecast, track the drop in air quality across dozens of PurpleAir sensors with our live, updating ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

In Canada, the Air Quality Health Index (AQHI) is a scale developed to help people understand what the current air quality means for your health. It is an initiative among Environment Canada, Health ...

The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Tuesday, July 15. Here's what to know ...

Air quality in the Chicago area remains poor for the third straight day in a row, with an air quality alert in effect through Wednesday night, along with extremely muggy conditions and the chance for ...

Plan for a hazy, hot and humid few days! Air quality will be the lowest on Tuesday. Combined with the heat, health impacts ...

The Southwest Ohio Air Quality Agency reports that "levels of ozone within the region may approach or exceed unhealthy standards." ...

The Oregon Department of Environmental Quality issued an air quality advisory for Wednesday for Klamath and Jefferson ...