Road traffic is one of the main sources of fine particulate matter in the atmosphere, above all when the weather situation favors the creation of winter smog, as has been the case over the past few day in the Swiss “Mittelland”. ...
Environment
Feb 2, 2011
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(PhysOrg.com) -- Native Americans used smoke signals to indicate danger, and a white plume is sent up by the Vatican when a new Pope is chosen. Now, a new research project by Tel Aviv University researchers and their colleagues ...
Earth Sciences
Apr 22, 2010
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(PhysOrg.com) -- Particulate air pollution during the 2008 Olympic Games in Beijing constantly exceeded levels considered excessive by the World Health Organization, was far worse than other recent Olympic Games, and was ...
Environment
Jun 19, 2009
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