The fresh air came after days of acrid smoke from wildfires, but officials warned that conditions could rapidly worsen again.
Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.
Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...
The infernal blazes burning in Southern California are raising concerns about the potential airborne hazards they may be ...