The Air Quality Index does not take into account many gas or particle contaminants ... "They emit more toxic material per unit burnt than vegetation," says Colleen Reid, a health geographer who has ...

Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires.

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

Here's how to tell if you're in an area at risk. What is the Air Quality Index, or AQI? The Air Quality Index, often referred to as AQI, is a federal measure of the amount of air pollution ...