After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free skies this week. The Air Quality Index (AQI) — which measures the ...

What doesn't AQI tell us? The Air Quality Index does not take into account many gas or particle contaminants that are ...

Naturally, people in the Los Angeles area are reaching for their phones to see what the Air Quality Index (AQI) says about ...

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

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

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

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 ...

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

Tens of thousands of people have evacuated their homes and at least two have died in raging fires sweeping across Los Angeles County Wednesday. Multiple wildfires spread by strong Santa Ana winds ...

Fortunately, the US Environmental Protection Agency has a resource called the Air Quality Index to help monitor air quality. We'll explain how it works and how you can use it to avoid unhealthy ...