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

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

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 air quality alert in effect until Saturday at 12:15 a.m. EDT for St. Clair, ...

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

An air quality alert was reported by the NWS San Diego CA on Thursday at 2:47 p.m. in effect until Saturday at midnight. The ...

At 2:43 p.m. on Thursday, the NWS Los Angeles/Oxnard CA reported an air quality alert in effect until Saturday at 11 p.m. The ...

Los Angeles County is included in an air quality alert reported by the National Weather Service on Thursday at 2:43 p.m. The ...

An Air Quality Action Day will be in effect Friday for Johnson County.

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

Temperatures rose quickly into the 80s Thursday as dew points crept back into the lower 60s, which made it feel a touch more ...