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.

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

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

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

The Southwest Ohio Air Quality Agency reports that "levels of ozone within the region may approach or exceed unhealthy ...

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 ...

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, ...

After a few days of jubilant fireworks launching, Columbus' air quality is taking a hit, causing the Mid-Ohio Planning ...

An air quality alert was issued Thursday by the National Weather Service for the entire Chicago area through Friday night.

A regional air quality alert was issued for much of Southern California as harmful levels of fine particle pollution spread ...

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