After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free ...

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California.

While containment on the Eaton and Palisades fires continue to grow, forecasters with South Coast AQMD say ‘hazardous ash’ ...

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

Think back to the red AQI forecast on your phone. What information was it trying to convey? The Air Quality Index (AQI) is a ...

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

The Oregon Department of Environmental Quality issued an air quality advisory for La Pine Tuesday due to stagnant air ...

The LA wildfires have burned tens of thousands of acres – but on some weather maps, air quality still looks good. What’s ...

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

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