Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels ... many gas or particle ...

The spiking levels underscore the added danger from wildfires when cars, homes, and other structures burn ... Wildfires are ...

These are tiny particles of soot or dust in the air, which can come from everyday pollution sources like gas cars and stoves as well as from wildfires. PM2.5 are the tiniest particles and PM10 are ...