Pollution Map
Center Zoom In Zoom Out Zoom Box Zoom To Fit
Tool
0°0.001' E:0°0.001' N  
LayersArrow
Cities Drawing Labels
Cities Drawing
World_Map
2011
2010
2009
2008
2007
2006
2005
LegendArrow
Legend
These measurements indicate the amount of Nitrogen Dioxide (NO2) in the atmosphere, the daily average, computed for the year.  The measurements were recorded by NASA EOS Aura OMI sensors. NO2 is an irritant gas, produced as a by-product of high temperature combustion. Automobiles and fossil fuel power plants are principal outdoor sources.