Atmospheric levels of BTEX compounds during the 2008 Olympic Games in the urban area of Beijing

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气环境科学实验室

	Atmospheric levels of BTEX compounds during the 2008 Olympic Games in the urban area of Beijing
	Liu, Junfeng ; Mu, Yujing ; Zhang, Yujie ; Zhang, Zhimin ; Wang, Xiaoke ; Liu, Yanju ; Sun, Zhenquan
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2009-12-15
卷号	408 期号:1 页码:109-116
关键词	BTEX Beijing Olympic Games and Paralympics PID
中文摘要	The hourly concentrations of BTEX (Benzene, Toluene, Ethylbenzene, m,p-Xylene and o-Xylene) in the urban area of Beijing were measured during July-October 2008, covering the periods of the 2008 Olympic Games and Paralympic Games. The atmospheric BTEX were pre-concentrated on Tenax-TA tubes, and analyzed by GC-PID (Gas Chromatography with Photo Ionization Detector) after thermal desorption. During the games, the mean daytime concentrations of benzene, toluene, ethylbenzene. m,p-xylene and o-xylene were 2.37, 3.97, 1.92, 3.51 and 1.90 mu g/m(3), respectively, and were 52.8%, 63.9%, 56.4%, 56.8% and 46.9%, respectively lower than those after the games. The significantly positive correlation between BTEX and CO as well as the ratio of benzene/toluene suggested that the vehicle exhaust was the major source of BTEX during the whole investigated period. The extremely high ratios of ethylbenzene to m,p-xylene (E/X) were mainly observed at noontime in haze days, indicating that photochemical reactions were highly active under these typical days. (C) 2009 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000272329700014
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21422]
专题	生态环境研究中心_大气环境科学实验室
推荐引用方式 GB/T 7714	Liu, Junfeng,Mu, Yujing,Zhang, Yujie,et al. Atmospheric levels of BTEX compounds during the 2008 Olympic Games in the urban area of Beijing[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2009,408(1):109-116.
APA	Liu, Junfeng.,Mu, Yujing.,Zhang, Yujie.,Zhang, Zhimin.,Wang, Xiaoke.,...&Sun, Zhenquan.(2009).Atmospheric levels of BTEX compounds during the 2008 Olympic Games in the urban area of Beijing.SCIENCE OF THE TOTAL ENVIRONMENT,408(1),109-116.
MLA	Liu, Junfeng,et al."Atmospheric levels of BTEX compounds during the 2008 Olympic Games in the urban area of Beijing".SCIENCE OF THE TOTAL ENVIRONMENT 408.1(2009):109-116.