Tiny particles in the air known as aerosols play an important role in cloud formation, which in turn has an impact on our planet's climate. However to date the effect of aerosols on cloud formation remains full of uncertainties. ...
Earth Sciences
May 29, 2017
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15
Aerosol particles suspended in the air of urban environments typically reduce visibility, interact with sunlight by scattering and absorbing radiation, and lower air quality. In addition, these tiny particles can also contribute ...
Environment
May 13, 2017
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27
Aerosol emissions from logwood combustion increase significantly when the emission ages in ambient air. A significant increase occurs already within three hours of aging, according to a new study from the University of Eastern ...
Environment
Mar 30, 2017
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4
A new way of looking at how pollutants ride through the atmosphere has quadrupled the estimate of global lung cancer risk from a pollutant caused by combustion, to a level that is now double the allowable limit recommended ...
Earth Sciences
Jan 26, 2017
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506
A study published in the journal Nature solves a mystery that has puzzled scientists for over a decade: the origin of the atmospheric aerosols that contribute to cloud formation above the Amazon rainforest in the absence ...
Earth Sciences
Nov 2, 2016
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6
Researchers led by Carnegie Mellon University's Neil M. Donahue have shown that semi-volatile organic compounds can readily diffuse into the billions of tiny atmospheric particles that inhabit the air, easily moving among ...
Earth Sciences
Oct 24, 2016
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6
Fatty acids found on the surface of water droplets react with sunlight to form organic molecules, essentially uncovering a previously unknown form of photolysis.
Materials Science
Aug 11, 2016
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53
One of the secrets relevant to climate change involves how emissions from nature and human activities are changed in the atmosphere to become secondary organic aerosols (SOA).
Earth Sciences
Jun 10, 2016
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48
A new study finds that oil sands operations, a major source of oil production in the last several years, emit very high levels of a critical class of air pollutants and pose risks to health and climate.
Environment
May 26, 2016
8
56
In an unexpected twist, an atmospheric particle's stickiness protects it from sunlight when the air is cool and dry. The particle's sticky nature, or viscosity, slows down the motion of molecules inside. The result is that ...
Earth Sciences
Mar 22, 2016
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