Reductions of NO sub(2) detected from space during the 2008 Beijing Olympic Games

During the 2008 Olympic and Paralympic Games in Beijing (from 8 August to 17 September), local authorities enforced strong measures to reduce air pollution during the events. To evaluate the direct effect of these measures, we use the tropospheric NO sub(2) column observations from the satellite ins...

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Bibliographic Details
Published in:Geophysical research letters 2009-07, Vol.36 (13), p.np-np
Main Authors: Mijling, B, van der A, RJ, Boersma, K F, Van Roozendael, M, De Smedt, I, Kelder, H M
Format: Article
Language:English
Subjects:
Air pollution
Computer simulation
Games
GOME-2
Nitrogen dioxide
Reduction
Stockpiling
Transport
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Summary:During the 2008 Olympic and Paralympic Games in Beijing (from 8 August to 17 September), local authorities enforced strong measures to reduce air pollution during the events. To evaluate the direct effect of these measures, we use the tropospheric NO sub(2) column observations from the satellite instruments GOME-2 and OMI. We interpret these data against simulations from the regional chemistry transport model CHIMERE, based on a 2006 emission inventory, and find a reduction of NO sub(2) concentrations of approximately 60% above Beijing during the Olympic period. The air quality measures were especially effective in the Beijing area, but also noticeable in surrounding cities of Tianjin (30% reduction) and Shijiazhuang (20% reduction).
ISSN:0094-8276
1944-8007
DOI:10.1029/2009GL038943