Altitude dependence of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface soil from Tibetan Plateau, China
文献类型：期刊论文
| 作者 | Wang, Pu ; Zhang, Qinghua ; Wang, Yawei ; Wang, Thanh ; Li, Xiaomin ; Li, Yingming ; Ding, Lei ; Jiang, Guibin |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2009-09 |
| 卷号 | 76期号:11页码:1498-1504 |
| 关键词 | Persistent organic pollutants High mountain areas Surface soil Long range transport Gradient distribution |
| 中文摘要 | Remote mountain areas besides high latitude regions are beginning to receive increased attention in studying the transport and behavior of persistent organic pollutants (POPs). In the present work, surface soil samples were collected from the Tibetan Plateau, the highest plateau in the world which includes the northern slope of Mt. Qomolangma, to investigate the levels and trends of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) along the altitudinal gradient. The average PCB and PBDE concentrations were 185.6 ng kg(-1) dry weight (dw) (range 47.1-422.6 ng kg(-1) dw) and 11.1 ng kg(-1) dw (range 4.3-34.9 ng kg(-1) dw), respectively. Regression analysis between the log-transformed TOC-normalized concentrations and the altitudes of the sampling sites showed two opposite trends with regard to altitude dependence: negative relationship with altitude below about 4500 m followed by a positive altitude dependence above this point. Considering minimum anthropogenic activities and very sparse precipitation in the north of Himalayas, the trends above 4500 m imply that the significant altitude dependence of these two groups of POPs were irrespective of pollution sources, but could be predicted by the global distillation effect involving cold condensation in high altitude mountain areas. increasing levels of heavier congeners were found in higher altitude sites, although the lighter congeners were the main contributors to the total amount, suggesting that less volatile congeners seem to become enriched easier than those more volatile at higher altitudes in this region. (C) 2009 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000270124800008 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21455]  |
| 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 | Wang, Pu,Zhang, Qinghua,Wang, Yawei,et al. Altitude dependence of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface soil from Tibetan Plateau, China[J]. CHEMOSPHERE,2009,76(11):1498-1504. |
| APA | Wang, Pu.,Zhang, Qinghua.,Wang, Yawei.,Wang, Thanh.,Li, Xiaomin.,...&Jiang, Guibin.(2009).Altitude dependence of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface soil from Tibetan Plateau, China.CHEMOSPHERE,76(11),1498-1504. |
| MLA | Wang, Pu,et al."Altitude dependence of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface soil from Tibetan Plateau, China".CHEMOSPHERE 76.11(2009):1498-1504. |
入库方式： OAI收割
来源：生态环境研究中心
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