The National Weather Service reported an air quality alert at 11:04 a.m. on Wednesday in effect until Thursday at 3 p.m. for ...

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

A special weather statement and warning have been issued for southern Ontario on Wednesday. The heat warning continues with temperature highs around 32 C or 40 C with the humidex in the Greater ...

Millions of Americans across nine states were urged to avoid driving and limit outdoor activities on Wednesday as air quality ...

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

Americans in at least eight states face potentially unhealthy levels of air pollution on Wednesday, official data shows. The data is shown in a live map from AirNow—a partnership of multiple U.S.

Residents across much of the Hudson Valley, Long Island, and New York City are under dual weather alerts on Wednesday, July ...

Air Quality Health Index (AQHI) values are expected to reach moderate to high risk levels this afternoon and evening as a result of increasing ground-level ozone combining with residual smoke. When ...

Air Quality Health Index values are expected to reach moderate to high risk this afternoon and evening as elevated levels of ...

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

Brockville – Environment Canada has issued a Special Air Quality Alert for Brockville, Leeds-Grenville, due to smoke from Northern Ontario & Prairie forest fires, which is causing or is ...

Thirty years after a heat wave left more than 700 people dead, Northwestern researchers asked residents to rank solutions for ...