Add Yahoo as a preferred source to see more of our stories on Google. Ultrafine particles stem from a variety of natural and human-made sources, including vehicle exhaust. Joe Raedle/Getty Images Long ...

Air pollution particles inhaled by pregnant mothers can make their way into the tissues and organs of developing fetuses, according to a new study. Although the health consequences are not yet known, ...

Magnetite, a tiny particle found in air pollution, can induce signs and symptoms of Alzheimer's disease, new research suggests. Alzheimer's disease, a type of dementia, leads to memory loss, cognitive ...

Representative light microscopy images of carbonaceous (black) particles adherent to red blood cells (red arrows) from healthy volunteers. Each image is from a different adult volunteer. Researchers ...

A new study estimates that adults inhale up to 68,000 microplastic particles per day inside homes and cars, with most particles small enough to reach deep into the lungs. (Image by Nadiia Yakovenko, ...

Here’s what you’ll learn when you read this story: The air we breathe every day is much more than a simple mixture of nitrogen and oxygen (and small amounts of other gases). Every day, we inhale ...

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Living in areas with higher air pollution is associated with an increased risk of in-hospital death from stroke, and the risk varies depending on the size of the air pollution particles, according to ...

In less than a millionth of a second after a nuclear detonation or a severe nuclear reactor accident, an enormous burst of ...