Wildfire smoke contains a "complex mixture" of fine particles that can pose hazards after just short-term exposure, according to the U.S. Environmental Protection Agency (EPA). Known as PM2.5 ...

Depending on where you live, you could be wrong. That's because even after wildfires are over, the smoke can linger in the atmosphere for days or weeks. The smoke also can travel hundreds of miles ...

Firefighters are still struggling to control the blazes, which have led to wildfire smoke that’s worsening the air quality in the region. Wildfire smoke can travel long distances and affect the ...

Even as the destructive Santa Ana winds propelling the catastrophic Southern California fires begin to taper off, the gusts are blowing the thick clouds of smoke far into the Los Angeles ...

Powerful, wind-fueled wildfires raging across parts of Los Angeles County on Wednesday filled the surrounding air with smoke, making it unhealthy to breathe, officials said. "Predicting where ash ...

Tens of thousands of people are evacuating Los Angeles as wildfires blaze across the region, emitting dangerous smoke and billowing ash in its wake. Wildfire smoke is a "complex mixture" of ...

Along with the wildfires, residents must deal with other hazards: smoke and ash. Smoke is made of tiny particles. Smoke particles 2.5 micrometers or smaller in size — known as PM2.5 — are particularly ...

The plumes of smoke are even visible from space. Residents of many fire-prone areas—as well as those far downwind—have grown familiar with the orange, apocalyptic haze of wildfire smoke as ...

Wildfire smoke is becoming an increasingly common health hazard as wildfires grow more frequent and intense. Understanding the health impacts of wildfire smoke and taking precautions can help protect ...

The smoke and ash can blow under doors and around windows in nearby homes, bringing in chemicals that are absorbed into furniture, walls and other indoor surfaces and continue off-gassing for ...

0:55 Timelapse shows how quickly L.A. wildfires are spreading As wildfires rage across Los Angeles, the smoke billowing into the air carries more than the expected risks of particulate matter and ...

You don’t have to live close to a wildfire to be affected by its smoke. With severe winds fanning the fires in and around Pacific Palisades, the Pasadena foothills and Simi Valley, huge swaths ...