Traffic restrictions associated with the Sino-African Summit: Reductions of NOX detected from space

Publication information:

Yuxuan Wang, Michael B. McElroy, K. Folkert Boersma, Henk Eskes, and Pepijn Veefkind. 2007. “Traffic Restrictions Associated With the Sino-African Summit: Reductions of NOX Detected from Space”. Geophysical Research Letters, 34, L08814

Abstract

Aggressive measures were instituted by the Beijing municipal authorities to restrict vehicular traffic in the Chinese capital during the recent Sino-African Summit. We show that reductions in associated emissions of NOx were detected by the Dutch-Finnish Ozone Monitoring Instrument (OMI) aboard the Aura satellite. Interpretation of these data using a 3-dimensional chemical transport model indicates that emissions of NOx were reduced by 40% over the period of November 4 to 6, 2006, for which the restrictions were in place.