News tagged with aerosol
NOAA study suggests aerosols might be inhibiting global warming
(PhysOrg.com) -- A new study led by the U.S, National Oceanic and Atmospheric Administration (NOAA) shows that tiny particles that make their way all the way up into the stratosphere may be offsetting a global ...
Space & Earth / Earth Sciences
Jul 22, 2011 |
4.4 / 5 (17) |
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Good vibrations lead to molecular revelation
(PhysOrg.com) -- A little luck and the wisdom to recognize what they were seeing helped Rice University researchers solve a molecular conundrum in a way that could be a boon to chemists.
Mar 14, 2011 |
5 / 5 (3) |
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No longer pining for organic molecules to make particles in the air
(PhysOrg.com) -- The fresh scent of pine has helped atmospheric scientists find missing sources of organic molecules in the air -- which, it could well turn out, aren't missing after all. In work appearing ...
Space & Earth / Earth Sciences
Jan 24, 2011 |
4.8 / 5 (5) |
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Researchers: Champagne's aroma comes from bubbles
(AP) -- Don Ho was right. It is the tiny bubbles. A team of researchers - in Europe not surprisingly - found that Champagne's bursting bubbles not only tickle the nose, they create a mist that wafts the aroma to the drinker.
Chemistry / Analytical Chemistry
Sep 28, 2009 |
5 / 5 (1) |
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Researchers show how organic carbon compounds emitted by trees affect air quality
A previously unrecognized player in the process by which gases produced by trees and other plants become aerosols—microscopically small particles in the atmosphere—has been discovered by a research team led ...
Aug 06, 2009 |
4 / 5 (9) |
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Salt block unexpectedly stretches in new experiments
To stretch a supply of salt generally means using it sparingly.
Nanotechnology / Nanomaterials
Jun 24, 2009 |
4.6 / 5 (7) |
4
Aerosols May Drive a Significant Portion of Arctic Warming
(PhysOrg.com) -- Though greenhouse gases are invariably at the center of discussions about global climate change, new NASA research suggests that much of the atmospheric warming observed in the Arctic since ...
Space & Earth / Earth Sciences
Apr 08, 2009 |
4.3 / 5 (19) |
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Gases drawn into particles stay there
(Phys.org) -- Contrary to expectations, formation and growth of complex organic particles generated during oxidation of volatile organic molecules by ozone and nitrate follows a non-equilibrium path, according ...
Apr 09, 2012 |
5 / 5 (2) |
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Long term North Atlantic surface temperature fluctuations linked to aerosols
(PhysOrg.com) -- Manmade pollution doesn’t always cause atmospheric warming, a group of researchers from Britain’s Met Office Hadley Centre, write in their paper published in the journal Nature, someti ...
Space & Earth / Earth Sciences
Apr 05, 2012 |
4.6 / 5 (9) |
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With you in the room, bacteria counts spike
A person's mere presence in a room can add 37 million bacteria to the air every hour -- material largely left behind by previous occupants and stirred up from the floor -- according to new research by Yale University engineers.
Mar 28, 2012 |
4.4 / 5 (5) |
4
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Gases drawn into smog particles stay there, study reveals
Airborne gases get sucked into stubborn smog particles from which they cannot escape, according to findings by UC Irvine and other researchers published today in the Proceedings of the National Academy of ...
Space & Earth / Earth Sciences
Feb 21, 2012 |
5 / 5 (2) |
2
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New study may answer questions about enigmatic Little Ice Age
A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages ...
Space & Earth / Earth Sciences
Jan 30, 2012 |
4.8 / 5 (8) |
9
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NASA launches weather-climate satellite
The US space agency on Friday launched a first-of-its kind satellite that will send back data on weather and climate to help forecasters predict major storms and other changes in the environment.
Space & Earth / Space Exploration
Oct 28, 2011 |
5 / 5 (3) |
6
SPICE geoengineering project delayed due to critics issues
(PhysOrg.com) -- Last month it was announced that a group of researchers had come together to start a geoengineering project called Stratospheric Particle Injection for Climate Engineering (SPICE). Its aim ...
Space & Earth / Earth Sciences
Oct 05, 2011 |
5 / 5 (1) |
6
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Research model shows monsoon change in India may be result of manmade aerosols
(PhysOrg.com) -- A research team from Princeton has developed a model that they say shows that manmade aerosols in the atmosphere are in part responsible for the decrease in rainfall in India’s north central regions ...
Space & Earth / Earth Sciences
Sep 30, 2011 |
4 / 5 (4) |
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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:
For more information about Aerosol, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
