Officials have issued a Code Orange Air Quality Alert, meaning pollution levels have reached levels that could pose health risks, particularly for sensitive groups.

Early Friday evening, air quality was moderate in most of Los Angeles and Orange County, with a small area where the air is unhealthy for sensitive groups. And while much of the Inland Empire has ...

"Air quality can vary by hour and location depending on wind conditions," said an air pollution control agency.

In Los Angeles and Orange County on Tuesday ... of only 41 in the mountain areas and a low of 28 degrees amid good air quality. Snow is expected at the 6,000 elevation. Most of the desert areas ...

On Saturday at 9:09 p.m. an air quality alert was reported by the NWS Greenville-Spartanburg SC in effect until Sunday at ...

The NWS Raleigh NC reported an air quality alert at 4:16 p.m. on Sunday in effect until Tuesday at 12:15 a.m. for Stanly and ...