The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health ...

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

An air quality advisory is in effect until 12 a.m., Saturday, June 7, as Michigan continues to see effects of Canadian ...

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for ...

Massive clouds of pollutants could collide in North Carolina this week and result in poor air quality conditions for millions ...

Michigan's air, which has been tainted for several days by wafting smoke from Canadian wildfires, is expected to improve over ...

An air quality alert has been issued for NYC and N.J. on Wednesday, as smoke from the Canadian wildfires blows into the ...

Another large fire exacerbated by climate change is threatening the health of Chicagoans. Government officials issued an air ...

Although the majority of wildfires are occurring in western Canada, smoke from these fires has been drifting eastward, ...

Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach ...