Reductions of NO 2  detected from space during the 2008 Beijing Olympic Games | Zendy

Mijling B. | Zendy; van der A R. J. | Zendy; Boersma K. F. | Zendy; Van Roozendael M. | Zendy; De Smedt I. | Zendy; Kelder H. M. | Zendy

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

Author(s) -

Mijling B.,

van der A R. J.,

Boersma K. F.,

Van Roozendael M.,

De Smedt I.,

Kelder H. M.

Publication year - 2009

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/2009gl038943

Subject(s) - beijing , environmental science , air quality index , meteorology , satellite , troposphere , pollution , emission inventory , climatology , atmospheric sciences , geography , china , physics , geology , ecology , archaeology , astronomy , biology

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 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 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).

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