Earth
ID: 3074
Nitrogen Dioxide Concentration Over China: September 24 - November 7, 2004
Visualizations by
Lori Perkins
Released on December 12, 2004
Nitrogen dioxide, NO2, is a traffic-related pollutant. Emissions are generally highest in urban rather than rural areas. Annual mean concentrations of nitrogen dioxide in urban areas are generally in the range 10-45 ppb, and lower in rural areas. Levels vary significantly throughout the day, with peaks generally occurring twice daily as a consequence of rush hour traffic. Concentrations can be as high as 200 ppb. Particulate matter is very fine and can be carried deep into the lungs where they can cause inflammation and a worsening of the condition of people with heart and lung disease. Further, the problem is not necessarily concentrated in the inner cities. Because many major road / motorway interchange complexes are situated in semi-rural areas, under conditions of near-stationary traffic, a rapid build-up of engine exhaust pollution can occur, which if the low-level atmospheric conditions are correct, will not be dispersed.
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Visualization Credits
Please give credit for this item to:
NASA/Goddard Space Flight Center
Scientific Visualization Studio
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https://svs.gsfc.nasa.gov/3074
Mission:
Aura
Data Used:
Aura/OMI
2004/09/24 - 2004/11/07
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.
This item is part of this series:
Aura First Light
Goddard TV Tape:
G2004-064
Keywords:
DLESE >> Atmospheric science
SVS >> Pollution
SVS >> Urban
GCMD >> Earth Science >> Atmosphere >> Atmospheric Chemistry/Nitrogen Compounds >> Nitrogen Dioxide
SVS >> Kyoto
NASA Science >> Earth
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0