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.

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

The air in 12 Texas counties exceeded federal soot standards, but Texas regulators say only four should face consequences.

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