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

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

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

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

Air quality remains a big concern in Los Angeles County, and not just for those nearby the Palisades and Eaton fires.

Just for perspective, we've now burned down [an area] like the entire city of San Francisco.” The experts said that even ...

Several parts of southern California are currently under windblown dust and ash advisories as deadly wildfires continue to ...

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

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

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

The Commission for Air Quality Management (CAQM) in NCR and adjoining areas said it held a review earlier in the day and ...