There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.

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 (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...

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 ...