Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

Southern California wildfires have spurred smoke advisories by authorities and contributed to hazardous air quality ...

The wet weather fueled by an atmospheric river represents an about-face after a dry January helped ignite fires that devastated California.

Southern California air quality monitors issued a dust and ash alert for all of Los Angeles County as strong Santa Ana winds blow through the Eaton and Palisades burn scars. The windblown advisory is ...

and our air quality regulators to join us — to clean up our freight system and fix the mess EPA’s inaction has created.” California’s Advanced Clean Fleet rule, which phases out diesel ...

Get top local stories in Southern California delivered to you ... First, if your HVAC system does not recirculate outside air, and instead only recirculates air from inside the home, the system ...

A much wetter stretch is ahead from California to Washington as multiple systems crash into the Pacific Coast. Here’s how ...

If San Carlos Airport loses its air traffic controllers, and air traffic towers are forced to go unmanned, it could create safety issues.

The planes can “discharge their entire load of up to 3,000 gallons of retardant in less than five seconds, covering an area one-quarter of a mile long by 100 feet wide, or they can make variable drops ...

Reps. Laura Friedman, D-Burbank, and Judy Chu, D-Pasadena, were joined by Reps. Brad Sherman, D-Sherman Oaks, and George ...