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

The Minnesota Pollution Control Agency has issued an air quality alert for north central and northeast Minnesota. The alert ...

Wildfire smoke is an environmental pollutant that impacts large regions, making it a true population-level hazard.

According to Siskiyou County Public Health Officer Dr. Donald E. Solus and local air quality officials, while not all areas ...

Detroit faces significant air pollution. Planet Detroit's guide details common pollutants and protective measures.

The air quality index in Aspen was expected to stay at moderate levels throughout Wednesday and part of Thursday, thanks in part to thunderstorms blowing smoke erratically from the fires burning in ...

PM2.5 pollution is spiking in many counties in Utah and is accompanied by the typical summer pollutant of ozone. It makes for a nasty mix of pollution.

Thousands of people across one state were told to go inside if they start experiencing respiratory symptoms such as coughing.

Impacted areas include Ulster, Dutchess, Orange, Putnam, Sullivan, Rockland, Westchester, Suffolk, and Nassau Counties, as well as New York City.

An air quality alert was issued by the National Weather Service in Milwaukee-Sullivan at 9:26 a.m. on Wednesday, July 16.

The National Weather Service has issued both a heat and air quality alert for most of downstate New York, Wednesday, July 16.

Canadian wildfire smoke remains in Michigan. On July 16, officials issued an air quality advisory for western counties.