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!!!Dust plume 

[{Image src='110ch.jpg' width='800' height='675' alt='Dust plume ' class='image_left' caption='Credit: NASA Earth Observatory/Jeff Schmaltz. ' popup='false'}]
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A dust plume arose over Chinas Inner Mongolia Autonomous Region and on 9 April 2012, began its eastward journey over the Sea of Japan. 

New research shows that dust accounts for most of the 64 million tons of foreign aerosol imports that arrive in the air over North America each year.