Dust is made of fine particles of solid matter. [1] On Earth, it generally consists of particles in the atmosphere that come from various sources such as soil lifted by wind (an aeolian process), volcanic eruptions, and pollution. Dust in homes is composed of about 20–50% dead skin cells. [2]

Dust, in general, is any microscopic, powderlike particle or collection of powderlike particles that is made up of sand, soil, fragments of organic tissue, or other materials and is both light enough to be carried by the wind and heavy enough to be deposited on a surface.

Dust particles commonly present in the atmosphere include the products of natural weathering of rocks and soil, emission of combustion engines and other artificial sources. The dust particles can absorb moisture and conglomerate on metal surfaces and accelerate the corrosion.

2021年9月26日 · Any particles of dirt, smoke, fibres or crushed materials that go into the air eventually come down as dust. But there’s much you can do. We can try to stop dust getting inside.

There's a common misconception that it’s mostly human skin. It's not: that mainly ends up in the bath or shower. Two thirds of the dust in your house comes from outside, as dirt tracked in on …

2016年5月29日 · Dust storms can cause certain environmental impacts such as reducing solar radiations, geochemical and biogeochemical effects, affecting marine primary producers or autotrophs, (thus...

Particles of concern include both “fine" particles (that are so small they can only be seen through an electron microscope) and somewhat larger "coarse" dust particles. Fine particles have been more clearly linked to the most serious health problems. What are …

2023年11月17日 · In the latest episode of Nature hits the books, writer and researcher Jay Owens joins us to discuss her book Dust: The Modern World in a Trillion Particles. Much like dust itself, Jay’s book...