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学科主题: 地理学::自然地理学
题名: Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau
作者: Yang, RQ (Yang, Ruiqiang)1; Xie, T (Xie, Ting)1; Li, A (Li, An)2; Yang, HD (Yang, Handong)3; Turner, S (Turner, Simon)3; Wu, GJ (Wu, Guangjian)4; Jing, CY (Jing, Chuanyong)1
通讯作者: Jing, CY
刊名: ENVIRONMENTAL POLLUTION
发表日期: 2016
DOI: 10.1016/j.envpol.2016.03.068
卷: 214, 期:0, 页:1-7
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: Sediment cores from five lakes across the Tibetan Plateau were used as natural archives to study the time trends of polycyclic aromatic hydrocarbons (PAHs). The depositional flux of PAHs generally showed an increasing trend from the deeper layers towards the upper layer sediments. The fluxes of PAHs were low with little variability before the 1950s, and then gradually increased to the late 1980s, with a faster increasing rate after the 1990s. This temporal pattern is clearly different compared with those remote lakes across the European mountains when PAHs started to decrease during the period 1960s-1980s. The difference of the temporal trend was attributed to differences in the economic development stages and energy structure between these regions. PAHs are dominated by the lighter 2&3-ring homologues with the averaged percentage over 87%, while it is notable that the percentage of heavier 4-6 ring PAHs generally increased in recent years, which suggests the contribution of local high-temperature combustion sources becoming more predominant. (C) 2016 Elsevier Ltd. All rights reserved.
语种: 英语
WOS记录号: WOS:000378448600001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7668
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China
2.Univ Illinois, Sch Publ Hlth, Chicago, IL 60612 USA
3.UCL, Environm Change Res Ctr, Pearson Bldg,Gower St, London WC1E 6BT, England
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China

Recommended Citation:
Yang, RQ ,Xie, T ,Li, A ,et al. Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau[J]. ENVIRONMENTAL POLLUTION,2016,214(0):1-7.
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