Dust and ash left behind from the January wildfires in Los Angeles County can be irritating and hazardous to health when it’s picked up by winds and spread throughout Southern California. Windblown ...

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

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

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

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 ...

Rather than relying solely on the Air Quality Index, Wexler recommends checking out PurpleAir Map, which tells you where the plumes of smoke are in real time. "If the plume is where you are or ...

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 ...

Southern California wildfires have spurred smoke advisories by authorities and contributed to hazardous air quality ...

So the agency added a disclaimer above the map: “Windblown ash particles may be too large to be detected by air-quality instrumentation and not reflected in the Air Quality Index (AQI ...