Ozone pollution is invisible,” says Kai Chen, PhD, co-faculty director of the Yale Center on Climate Change and Health, and that’s exactly why it is so dangerous. On July 9, air quality alerts ...

The National Weather Service has issued a heat advisory for parts of northern Connecticut Monday, as officials also warned of elevated levels of ozone in western parts of the state. The heat advisory ...

An updated air quality alert was reported by the National Weather Service on Sunday at 2:25 p.m. in effect until 11 p.m. for ...

The Michigan Department of Environment, Great Lakes, and Energy has declared an air quality alert for Friday. There are ...

The air quality alert will be in effect from midnight on Friday, July 4, to the end of Saturday, July 5, in Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, ...

On Saturday at 3:45 p.m. an air quality alert was reported by the National Weather Service in effect until Monday at midnight ...

“Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of ...

EDT the National Weather Service reported an air quality alert in effect until Saturday at midnight EDT for Berrien County.

EDT the National Weather Service reported an updated air quality alert for St. Clair, Livingston, Oakland, Macomb, Washtenaw, ...

Freeway north of LA is under an air quality alert which was reported by the National Weather Service on Thursday at 2:43 p.m.

Los Angeles County is the focus of an air quality alert reported at 1:58 p.m. on Wednesday by the National Weather Service.

The Orange County and Santa Ana Mountains area is under an air quality alert which was reported by the National Weather ...