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AGU: Geophysical Research Letters

 

Keywords

  • Olympic Games
  • NO2
  • air quality

Index Terms

  • Atmospheric Composition and Structure: Pollution: urban and regional
  • Atmospheric Composition and Structure: Troposphere: composition and chemistry
  • Geographic Location: Asia

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 36, L13801, 6 PP., 2009
doi:10.1029/2009GL038943

Reductions of NO2 detected from space during the 2008 Beijing Olympic Games

B. Mijling

Royal Netherlands Meteorological Institute, De Bilt, Netherlands

R. J. van der A

Royal Netherlands Meteorological Institute, De Bilt, Netherlands

K. F. Boersma

Royal Netherlands Meteorological Institute, De Bilt, Netherlands

M. Van Roozendael

Belgian Institute for Space Aeronomy, Brussels, Belgium

I. De Smedt

Belgian Institute for Space Aeronomy, Brussels, Belgium

H. M. Kelder

Department of Applied Physics, Eindhoven University of Technology, Eindhoven, Netherlands

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 NO2 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 NO2 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).

Received 29 April 2009; accepted 27 May 2009; published 1 July 2009.

Citation: Mijling, B., R. J. van der A, K. F. Boersma, M. Van Roozendael, I. De Smedt, and H. M. Kelder (2009), Reductions of NO2 detected from space during the 2008 Beijing Olympic Games, Geophys. Res. Lett., 36, L13801, doi:10.1029/2009GL038943.

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