Poor air quality has been detected in multiple states surrounding California. The state has been hit with multiple deadly ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, ...

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

Los Angeles is now a week removed from the day that multiple devastating wildfires erupted to torch tens of thousands of ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

The fresh air came after days of acrid smoke from wildfires, but officials warned that conditions could rapidly worsen again.