Concentrations, profiles and gas-particle partitioning of polychlorinated dibenzo-p-dioxins and dibenzofurans in the ambient air of Beijing, China
文献类型：期刊论文
| 作者 | Li, Yingming; Jiang, Guibin; Wang, Yawei; Cai, Zongwei; Zhang, Qinghua |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2008-03 |
| 卷号 | 42期号:9页码:2037-2047 |
| 关键词 | PCDD/Fs ambient air Beijing gas-particle partitioning dust event |
| 英文摘要 | Polychlorinated dibenzo-p-dioxins (PCDDs) and furans (PCDFs) were monitored in the ambient air of Beijing, China, from February to December 2006 to evaluate their concentrations, congener profiles and gas-particle partitioning. The PCDD/F concentrations for three different districts ranged from 275 to 10,780 fg m(-3), with an average of 4355 fg m(-3). The I-TEQs were 18-644 fg I-TEQ m(-3), with an average of 268 fg I-TEQ m(-3), which was comparable or slightly higher than other urban locations around the world. Severe dust event occurred during the sampling period, on 17-19 April 2006. The levels of PCDD/Fs did not increase during the dust event (average 2489 fg m(-3)) compared to non-dust events (average 3671 fg m(-3)) although the total suspended particulates (1109 mu g m(-3)) presented a 2.8-fold increase compared to non-dust events (392 mu g m(-3)). The PCDD/Fs were found exclusively in the particle phase. Significant linear correlations for PCDD/ Fs were observed (R(2): 0.57-0.64) between the gas-particle partition coefficient (K(p)) and the subcooled liquid vapor pressure (PO). The Junge-Pankow model and the K(oa) absorption model were employed to predict the gas-particle L partitioning of PCDD/F congeners. The K(oa) absorption model fitted well with the measurement results. However, the Junge-Pankow model slightly underestimated the particulate sorption of PCDD/Fs, which was contradicted with previous studies reported in the literature. (c) 2007 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000255620800007 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21924]  |
| 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 | Li, Yingming,Jiang, Guibin,Wang, Yawei,et al. Concentrations, profiles and gas-particle partitioning of polychlorinated dibenzo-p-dioxins and dibenzofurans in the ambient air of Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2008,42(9):2037-2047. |
| APA | Li, Yingming,Jiang, Guibin,Wang, Yawei,Cai, Zongwei,&Zhang, Qinghua.(2008).Concentrations, profiles and gas-particle partitioning of polychlorinated dibenzo-p-dioxins and dibenzofurans in the ambient air of Beijing, China.ATMOSPHERIC ENVIRONMENT,42(9),2037-2047. |
| MLA | Li, Yingming,et al."Concentrations, profiles and gas-particle partitioning of polychlorinated dibenzo-p-dioxins and dibenzofurans in the ambient air of Beijing, China".ATMOSPHERIC ENVIRONMENT 42.9(2008):2037-2047. |
入库方式： OAI收割
来源：生态环境研究中心
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