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 ...

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn’t breathe a ...

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 ...

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

Some studies have indicated that young children, especially those under the age of 4, are at particular risk because their ...

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

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

Smoke from the wildfires can wreak havoc on your health. Here are tips to stay safe.

As thousands of acres burn across Southern California, wildfire smoke is causing poor air quality in the region and beyond.