Observation of Black Carbon Aerosol During Beijing Olympic Games Period

Abstract

Abstract:

Black carbon aerosol (BC) has been measured at IRSA site in Beijing during July and August, 2008. Analyzing these real-time BC data, the concentration distributions and the sources of black carbon aerosol are concluded . The average concentrations of BC in July and Beijing Olympic Games period are 4.58 µg/m3 and 3.07 µg/m3 respectively, that the declining ratio is about 33.0%. It shows that a series of regulations successfully decreased the concentration of black carbon aerosol. The correlation coefficient between daily average concentration of BC and PM10 is 0.86, while the value of BC/PM10 is 1.9% . Through comparing to the BC concentration of summer in 2007, the results indicated that concentration of BC has reduced during Beijing Olympic Games period.

Key words: black carbon aerosol, Olympic games, IRSA site, inhalable particles(PM10), concentration characters

CLC Number:

X831

WU De-Xia, LIU Jian-Guo, LIU Yi-Huai, WANG Jie, LIU Shi-Sheng, FANG Wu, LU Fan. Observation of Black Carbon Aerosol During Beijing Olympic Games Period[J]. Journal of Atmospheric and Environmental Optics, 2009, 4(4): 300-306.

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