Live in a large city like New York, London, Beijing or Mumbai, and you are likely exposed to more air pollution than people in smaller cities in surrounding areas. But exactly how a city's pollution relates to the size of its population has never been measured, until now.
Fuente : http://www.eurekalert.org/pub_releases/2013-08/nsf...
Fuente : http://www.eurekalert.org/pub_releases/2013-08/nsf...