Image: NASA's satellite-derived map of air pollution, throughout planet earth, between 2001-2006.
Specifically, the "warmer" areas of the color map (yellow, orange, red)
indicate higher densities of problematic particles known as fine
particulate matter, or PM2.5. These are 2.5 micrometers or less in
diameter, roughly 1/10 the width of a strand of human hair. They're
small enough to sneak past your body's defenses, and lodge inside your
lungs.
To read the full, original article click on this link: Global map of air pollution - Boing Boing
Author: Xeni Jardin
