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

Poor air quality has been detected in multiple states surrounding California. The state has been hit with multiple deadly ...

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

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

Already known for having some of the worst air quality in the U.S., people in Southern California are now also at risk of ...

Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, ...

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

In the current day we wake up to our air purifiers, smartphones warning us that the air quality is in the ‘very poor’ or ...

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

Fortunately, the US Environmental Protection Agency has a resource called the Air Quality Index to help monitor air quality.

I've lived in Oregon for a decade, meaning I've experienced multiple wildfire seasons. You learn quickly, in these conditions ...

The USA TODAY analysis focused on days were the Air Quality Index, or AQI, was above 100. At this point, breathing the air primarily poses a risk to sensitive groups but can also impact healthy ...