Dust Dominates Foreign Aerosol Imports to North America

Dust Moving West of Sea of Japan

A dust plume arose over Inner Mongolia and on April 9, 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. Credit: NASA Earth Observatory/Jeff Schmaltz

NASA and university scientists have made the first measurement-based estimate of the amount and composition of tiny airborne particles that arrive in the air over North America each year. With a 3-D view of the atmosphere now possible from satellites, the scientists calculated that dust, not pollution, is the main ingredient of these imports.Read more.

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