An air quality index of 300 or higher is considered hazardous, and the record-breaking smoke AQI in Grand Portage reached 800 ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

An air quality alert has been issued for the entirety of Minnesota on Sunday as Canadian wildfire smoke continues to impact ...

From Sunday to Tuesday, smoke in northwest Canada swirled into the northern Plains, giving Minnesota some of the worst air ...

Smoke from more than 100 wildfires blazing in Canada is expected to spread and impact air quality index in Minnesota.

The Minnesota Pollution Control Agency says additional air quality alerts are likely needed for much of Minnesota this ...

Parts of central Pennsylvania are under a code orange air quality alert, but the Midwest is seeing bigger air quality ...

Minnesota authorities warned of unhealthy levels of exposure to particles from wildfires. Symptoms include shortness of ...

All of Minnesota will experience poor air quality this weekend as smoke — both near the surface and at higher altitudes — ...

The Minnesota Pollution Control Agency issued an air quality alert for much of state through Wednesday as smoke from ...

Surface smoke could impact part of Minnesota beginning Thursday, and with fires burning out of control in Canada, it could be ...

Online map tools and resources let you track the Canadian wildfires and monitor poor air-quality conditions, which are ...