Dust dominates foreign aerosol imports to North America
Friday, August 3, 2012 - 07:31
in Astronomy & Space
(Phys.org) -- 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.