Fluorescence lidar technology enables a better determination of the origin of particles in the atmosphere. The method can ...

On September 9, 2024, @Pinot_in_Pearl shared a video from Dove Canyon, California, USA, showing smoke filling the atmosphere due to a wildfire. Dubbed the Airport Fire, the blaze was reported ...

Wildfires in Arizona can send smoke drifting across the state and cause uncomfortable health issues for residents. JoAnna Strother, Phoenix-based regional senior director of advocacy at the ...

But those water molecules, just two hydrogens and an oxygen, are also bigger than most particles in smoke. And in the physics of light scattering, size matters. Down at the scale of a molecule or ...