Maine's air quality continues to suffer from lingering Canadian wildfire smoke. We asked health experts why exposure to smoky air is so harmful to our health. Wildfire smoke contains a cocktail of ...

You already know secondhand smoke is dangerous. A new study from the Institute of Atmospheric Physics at the Chinese Academy of Sciences shows a quieter threat can linger much longer indoors: ...

New measurements demonstrate that smoke particles in the upper atmosphere are twice the size of lower-altitude ones.

While prescribed fires are common tools in wildland management, a combination of smoke and fog, known as superfog, has in some cases crossed over major roadways, leading to multicar pileups and ...

In each of the SAME runs, the aged smoke was directed to six devices: a sample collector (for electron microscopic analysis on Earth that defined the morphology of the smoke particles), a particle ...