Editor's note: Go here for the latest air quality updates on Friday. The Washington, D.C., area has potentially dangerous air quality Thursday because of wildfire smoke drifting from Canada – and the ...

NEW YORK CITY - Wildfire smoke can push air quality into dangerous territory quickly, triggering color-coded alerts that range from Code Orange to Code Red, Code Purple and even Code Maroon. What we ...

Smoke from wildfires in Canada is now polluting the air in North America. On Thursday, some of the worst air coming from the Ontario province has spread over Minnesota, Michigan, Toronto, New York, ...

Residual smoke from wildfires in Canada continue to impact the air quality in Western Pennsylvania. The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert ...

WINSTON-SALEM, N.C. (WGHP) — The Forsyth County Office of Environmental Assistance and Protection has issued an Air Quality Alert/Code Orange alert for Friday for the following counties: Forsyth, ...

Pennsylvania's Department of Environmental Protection issued a Code Orange air quality alert for western counties due to Canadian wildfire smoke. The alert signals that the air is unhealthy for ...

The latest plume of Canadian wildfire smoke arrives today. The Pennsylvania Department of Environmental Protection is issuing a Code Orange Air Quality Alert Sunday. Children, the elderly and people ...

The Washington, D.C., area has potentially dangerous air quality Thursday because of wildfire smoke drifting from Canada – and the air quality Friday could be even worse. A Code Orange air quality ...

At the U.S. Marine Corps War Memorial in Rosslyn, the sun sets behind hazy skies (staff photo by Jay Westcott) It’s going to be hot, hazy and moderately unhealthy to be outside today (Thursday). The ...

Air quality alerts use color-coded categories to show when pollution levels may be unhealthy. Code Orange is unhealthy for sensitive groups, while Code Red is unhealthy for everyone. Code Purple means ...