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News tagged with aerosol

Tackling contamination with minimal water and energy consumption

EU-funded researchers developed technology for a dry pre-cleaning as an alternative to the water- and energy-intensive decontamination process currently used by the medical and food industries.

Technology / Engineering

created Apr 30, 2012 | popularity 5 / 5 (1) | comments 0

Slovenian adventurer ends eco-friendly trip around the world

Slovenian adventurer Matevz Lenarcic successfully concluded a 100-day eco-friendly trip around the world on Thursday in an ultra-light plane boasting super-low fuel mileage.

Technology / Energy & Green Tech

created Apr 19, 2012 | popularity 5 / 5 (1) | comments 1

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 ...

Chemistry / Materials Science

created Apr 09, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

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

created Apr 05, 2012 | popularity 4.6 / 5 (9) | comments 26 | with audio podcast report

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.

Biology / Other

created Mar 28, 2012 | popularity 4.4 / 5 (5) | comments 4 | with audio podcast

Nobel scientist who warned of thinning ozone dies

(AP) -- F. Sherwood Rowland, the Nobel prize-winning chemist who sounded the alarm on the thinning of the Earth's ozone layer and crusaded against the use of man-made chemicals that were harming earth's atmospheric blanket, ...

Space & Earth / Earth Sciences

created Mar 12, 2012 | popularity not rated yet | comments 0

A finger to the wind

Like testing the wind direction before taking flight, researchers led by scientists at Pacific Northwest National Laboratory assessed the meteorological conditions during a large observational study of carbon-containing ...

Space & Earth / Earth Sciences

created Mar 06, 2012 | popularity 5 / 5 (1) | comments 0

Characterization of winter organic aerosols in Beijing, China

Organic aerosol (OA) is a crucial component of atmospheric fine particles. To achieve a better understanding of the sources of OA is very significant for air pollution control. In the 2012, Vol 57(7) of Chinese Sc ...

Space & Earth / Earth Sciences

created Mar 05, 2012 | popularity not rated yet | comments 0

Warming of two degrees inevitable over Canada: study

(PhysOrg.com) -- Even if zero emissions of greenhouse gases were to be achieved, the world’s temperature would continue to rise by about a quarter of a degree over a decade. That’s a best-case ...

Space & Earth / Earth Sciences

created Mar 04, 2012 | popularity 4 / 5 (12) | comments 15

Gasoline worse than diesel when it comes to some types of air pollution: study

The exhaust fumes from gasoline vehicles contribute more to the production of a specific type of air pollution-secondary organic aerosols (SOA)-than those from diesel vehicles, according to a new study by scientists from ...

Space & Earth / Environment

created Mar 02, 2012 | popularity 1 / 5 (1) | comments 3

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

created Feb 21, 2012 | popularity 5 / 5 (2) | comments 2 | with audio podcast

Better models needed to track atmospheric pollution's impact on health, climate

The past decade has witnessed a significant growth in Asian air pollution, causing a great concern for air quality and climate. If government policy makers hope to contain the problem, they will need increased research and ...

Space & Earth / Environment

created Feb 19, 2012 | popularity not rated yet | comments 2

UI researcher notes importance of particulate matter on climate, health

When it comes to predicting climate change, researchers need to take into account the effects of particles in the air.

Space & Earth / Environment

created Feb 17, 2012 | popularity 5 / 5 (1) | comments 0

Effects of sea spray geoengineering on global climate

Anthropogenic climate warming is leading to consideration of options for geoengineering to offset rising carbon dioxide levels. One potential technique involves injecting artificial sea spray into the atmosphere. The sea ...

Space & Earth / Earth Sciences

created Feb 14, 2012 | popularity 2 / 5 (4) | comments 4

Probing a link from Sahara dust to climate change

Qilong Min, Ph.D., Senior Research Associate and Professor with the Atmospheric Sciences Research Center (ASRC) at the University at Albany is developing innovative ways to measure how dust in the Sahara Desert ...

Space & Earth / Earth Sciences

created Feb 10, 2012 | popularity not rated yet | comments 0

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.