Abstract：Air samples of five sampling sites in Shenzhen were collected by the active Hi-Vol air sampler during 2011 Shenzhen Universiade. The PAHs in both air phase and particulates phase were analyzed, and the statistically reductions for all PAHs during the Shenzhen Universiade by all kinds of air quality protection measures relative to the summer of 2010 were studied. The concentrations of ∑PAHs in Shenzhen Universiade ranged from 15.80 to 62.09ng/m3(average: 30.77 ng/m3), a reduction of 28% compared with the summer of 2010.The 3-ring and 4-ring PAHs are the main monomers, which accounted for 88%. It is indicated that vehicle exhaust was the major PAHs source,but the PAHs contribution rate of Diesel car and coal combustion increased during Shenzhen Universiade by the diagnostic ratio method,.∑BaPeq was reduced by 36% compared with the summer of 2010, the concentration of BaP and ∑BaPeq in five sites were below our country’s limited standard. The study of the inhalation cancer risk showed that the PAHs inhalation exposure lead to 7.3 cancer cases per million people in the summer of 2010, whereas the cases decreased to 3.8 in Shenzhen Universiade, a reduction of 48%.
何龙, 李志刚, 刘德全, 李少艾, 周志华. 深圳大运会期间大气中多环芳烃的特征及消减情况研究[J]. 中国环境科学, 2012, 32(12): 2155-2160.
HE Long, LI Zhi-Gang, LIU De-Quan, LI Shao-Ai, ZHOU Zhi-Hua. Pollutant characterization and reduction of polycyclic aromatic hydrocarbons (PAHs) in atmosphere during Shenzhen Universiade. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(12): 2155-2160.
