News tagged with aerosol

How Legionella subverts to survive

(Medical Xpress)—Bacteria of the genus Legionella have evolved a sophisticated system to replicate in the phagocytic cells of their hosts. LMU researchers have now identified a novel component of this system.

Jul 18, 2013
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Should caffeine be a regulated substance?

Caffeine-related toxicity, deaths, and near-deaths are an undeniable fact. In Sweden, for example, four people died as a result of confirmed caffeine-related causes in one year. Yet caffeine use continues to grow, including ...

Feb 26, 2013
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Children victims of most eye injuries from aerosols

Children were the victims in more than half of the emergency room visits for eye injuries related to aerosol cans between 1997 and 2009, according to a new study by researchers at Brown University. More could be done, they ...

Apr 13, 2011
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Aerosol

Technically, an aerosol is a suspension of fine solid particles or liquid droplets in a gas. Examples are clouds, and air pollution such as smog and smoke. In general conversation, aerosol usually refers to an aerosol spray can or the output of such a can. The word aerosol derives from the fact that matter "floating" in air is a suspension (a mixture in which solid or liquid or combined solid–liquid particles are suspended in a fluid). To differentiate suspensions from true solutions, the term sol evolved—originally meant to cover dispersions of tiny (sub-microscopic) particles in a liquid. With studies of dispersions in air, the term aerosol evolved and now embraces both liquid droplets, solid particles, and combinations of these. The Earth atmosphere contains aerosols of various types and concentrations, including quantities of:

By far the most common aerosols in the atmosphere are clouds, which normally consist of suspensions of water droplets or ice particles of greater or lesser density.

Aerosols can be found in urban Ecosystems in various forms, for example:

This text uses material from Wikipedia licensed under CC BY-SA