The Canadian wildfire smoke that covered northwest Wisconsin July 24 has moved south and is causing air quality problems in ...

The alert from the state Department of Environmental Conservation, which is in effect from 10 a.m. to midnight, includes the ...

TCEQ, in an air quality message: "Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Thursday.

An air quality alert was issued by the National Weather Service in Milwaukee-Sullivan at 1:52 p.m. on Wednesday, July 23.

Wisconsin, Minnesota and Indiana all have air quality alerts, while Chicago's air quality currently ranks in the "unhealthy for sensitive groups" category.

As of Tuesday morning, the Air Quality Index in Milwaukee was between 115 to 120, which falls in the "unhealthy for sensitive ...

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

Canadian wildfire smoke lingers in Michigan. Officials issued an air quality advisory in southeast Michigan for July 15.

That National Weather Service has issued an air quality advisory for most of Michigan's Upper Peninsula, southern Michigan and southeast Michigan from Friday, May 30, into the morning of Saturday ...

In Cathedral City, California, air quality was measured as "hazardous," which is the worst AQI category. It occurs when AQI hits 301 or higher and can cause health conditions for anyone exposed.