On June 24, the city released initial air quality test results. But the analysis was flawed, some experts said.

The Mid-Ohio Regional Planning Commission has issued an air quality alert for July 23 for four central Ohio counties, ...

A mysterious odor near a Deer Park industrial site is making people sick. Hazmat crews are now on scene searching for the ...

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

Cook County is under a heat watch through Thursday evening. Temperatures could feel like 105-110 degrees Wednesday.

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

At 9:13 a.m. on Wednesday, the National Weather Service reported an air quality alert in effect until Thursday at midnight ...

If you have breathing problems, be sure to take it easy on Wednesday and limit outdoor time. Air quality will be unhealthy ...

Central Ohio counties face an Air Quality Alert as ozone levels rise due to high pressure and sunny conditions.

Conditions continued to worsen after the region was put under an Environment Canada Air Quality Warning Monday afternoon. A ...

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

Canadian wildfire smoke no longer lingers in Michigan as of July 18. Southwest Michigan will experience unhealthy air for ...