Characterization of HCHs and DDTs in urban dustfall and prediction of soil burden in a metropolis-Beijing, China
文献类型：期刊论文
| 作者 | Cheng, Hangxin ; Ma, Lingling ; Zhao, Chuandong ; Li, Xinghong ; Wang, Xiaofei ; Liu, Yinghan ; Yang, Ke |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 85期号:3页码:406—411 |
| 中文摘要 | The concentrations, spatial distribution and compositional patterns of extensively used hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in urban dustfall in a metropolis-Beijing are presented in this paper. The potential sources are discussed and soil burdens are predicted based on the fluxes. The hotspots in commercial areas are identified by spatial distribution maps and the fractional value isomers indicates that dustfall in urban Beijing are affected by both current and historical usage of DDTs. It is worth noticing that there is possible application "dicofol-type of DDTs" in Beijing. The measured atmospheric deposition flux is 1.14 x 10(5) ng h(-1) m(-2) for HCHs and 1.47 x 10(5) ng h(-1) m(-2) for DDTs, respectively. However, when compared with atmospheric deposition flux, the volatilization flux estimated from concentrations in soils by fugacity model is significantly lower for HCHs (2.41 ng h(-1) m(-2)) and DDTs (0.07 ng h(-1) m(-2)). The net atmospheric flux to the soil suggests that the levels of HCHs and DDTs in soil are dominated by atmospheric deposition and the urban soil in Beijing would be a sink for HCHs and DDTs in the long term. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000297661900017 |
| 公开日期 | 2012-10-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/6992]  |
| 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 | Cheng, Hangxin,Ma, Lingling,Zhao, Chuandong,et al. Characterization of HCHs and DDTs in urban dustfall and prediction of soil burden in a metropolis-Beijing, China[J]. CHEMOSPHERE,2011,85(3):406—411. |
| APA | Cheng, Hangxin.,Ma, Lingling.,Zhao, Chuandong.,Li, Xinghong.,Wang, Xiaofei.,...&Yang, Ke.(2011).Characterization of HCHs and DDTs in urban dustfall and prediction of soil burden in a metropolis-Beijing, China.CHEMOSPHERE,85(3),406—411. |
| MLA | Cheng, Hangxin,et al."Characterization of HCHs and DDTs in urban dustfall and prediction of soil burden in a metropolis-Beijing, China".CHEMOSPHERE 85.3(2011):406—411. |
入库方式： OAI收割
来源：生态环境研究中心
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