ApocaDocs: Leaves "Magnetized" by Air Pollution, Study Finds

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Posted Tue Oct 20 2009: from National Geographic:


	Leaves "Magnetized" by Air Pollution, Study Finds http://apocadocs.com/s.pl?1256059839 Tree leaves are "magnetized" by air pollution, and the phenomenon may offer a new and inexpensive technique for quickly identifying air-pollution hot spots, scientists say. The technique, they add, could help city officials plan healthier bike paths, walkways, and running paths. Vehicle exhaust and other sources of air pollution spew out metallic fragments that then adhere to nearby tree leaves, said study leader Bernie Housen, a geophysicist at Western Washington University in Bellingham, Washington...Housen's study revealed that leaves plucked from trees along regular bus routes were up to ten times more magnetic than those on quieter streets.

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'Doc Michael says:

If you live along a bus route you're plucked!