8Beijing Organizing Committee for the Games of the XXIX Olympic Games (BOCOG). Green Olympics in Beijing 2005 Environmental Improvement in Beijing. 2005.
10Wang X, Westerdahl D, Chert C L, et al. Evatuating the air quality impacts of the 2008 Beijing Olympics Games: On-road emission factors and black carbon profiles. Atmos Environ, 2009, 43:4335-4543.
