Sunday, 15. April 2007
Topic: NATURE - on April 15, 2007 at 5:31:00 PM CEST
Global Air Pollution
The only way to get a complete picture of air pollution around the globe is to measure it from space. This new image compiles data from 18 months of observations by the European Space Agency's Envisat satellite.
It shows concentrations of nitrogen dioxide (NO2), a mostly man-made gas that comes from power plants, heavy industry, trucks and the burning of biomass. Lightning in the air and microbial activity in soil also produce NO2, which can cause respiratory problems.
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