A comparison of the levels and particle size distribution of lower chlorinated dioxin/furans (mono- to tri-chlorinated homologues) with those of tetra- to octa-chlorinated homologues in atmospheric samples

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	A comparison of the levels and particle size distribution of lower chlorinated dioxin/furans (mono- to tri-chlorinated homologues) with those of tetra- to octa-chlorinated homologues in atmospheric samples
	Zhang, Xian; Zheng, Minghui; Liu, Guorui; Zhu, Qingqing; Dong, Shujun; Zhang, Hongxing; Wang, Xiaoke; Xiao, Ke; Gao, Lirong; Liu, Wenbin
刊名	CHEMOSPHERE
	2016-05
卷号	151 期号:0 页码:55-58
关键词	PCDD/Fs Mono- to tri-chlorinated homologues Atmosphere Gas/particle partitioning Particles Distribution
英文摘要	There is very little information on the levels and particle size distributions of lower chlorinated dibenzop-dioxins and dibenzofurans (mono- to tri-CDD/Fs, Sigma Cl1-3DD/Fs) in the atmosphere, while a number of studies have examined tetra- to octa-chlorinated homologues (Sigma Cl4-8DD/Fs). In this study, we measured the concentration and particle size distribution of Sigma Cl1-3DD/Fs in ambient air in suburban Beijing and compared them with that of Sigma Cl4-8DD/Fs for the first time. The mean concentration of Sigma Cl1-3DD/Fs was 54.63 pg m(-3), which is about 5.4 times that of Sigma Cl4-8DD/Fs. The Sigma Cl1-3DD/Fs accounted for 85% of Sigma Cl1-8DD/Fs, and MoCDFs made up the largest proportion (43%) of PCDD/F homologues. The Sigma Cl1-3DD/Fs mainly occurred in the gas phase, while the Sigma Cl4-8DD/Fs mainly occurred in the particulate phase. The majority of Sigma Cl1-3DD/Fs (70%) occurred in d(ae) > 1.0 mu m particles, which is the reverse of the trend observed for Sigma Cl4-8DD/Fs, of which 78% occurred in d(ae) < 1.0 mu m particles. The observed high concentrations of Sigma Cl1-3DD/Fs and different distribution patterns demonstrate that it is necessary to consider the lower chlorinated homologues to improve our understanding of the environmental behavior and health risk assessments of PCDD/Fs in the atmosphere. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/35791]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Xian,Zheng, Minghui,Liu, Guorui,et al. A comparison of the levels and particle size distribution of lower chlorinated dioxin/furans (mono- to tri-chlorinated homologues) with those of tetra- to octa-chlorinated homologues in atmospheric samples[J]. CHEMOSPHERE,2016,151(0):55-58.
APA	Zhang, Xian.,Zheng, Minghui.,Liu, Guorui.,Zhu, Qingqing.,Dong, Shujun.,...&Liu, Wenbin.(2016).A comparison of the levels and particle size distribution of lower chlorinated dioxin/furans (mono- to tri-chlorinated homologues) with those of tetra- to octa-chlorinated homologues in atmospheric samples.CHEMOSPHERE,151(0),55-58.
MLA	Zhang, Xian,et al."A comparison of the levels and particle size distribution of lower chlorinated dioxin/furans (mono- to tri-chlorinated homologues) with those of tetra- to octa-chlorinated homologues in atmospheric samples".CHEMOSPHERE 151.0(2016):55-58.