The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the ...

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 a ...

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 ...

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

A map created by Newsweek highlights the location and severity of air quality levels across California as the Pacific Palisades Fire continues to burn in Los Angeles County.