气候变化领域集成服务门户(CCPortal): Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau

CCPortal

DOI	10.1016/j.envpol.2016.03.068
	Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau
	Yang, Ruiqiang; Xie, Ting; Li, An; Yang, Handong; Turner, Simon; Wu, Guangjian; Jing, Chuanyong
通讯作者	Jing, CY (通讯作者)
发表日期	2016
ISSN	0269-7491
EISSN	1873-6424
起始页码	1
结束页码	7
卷号	214
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.
关键词	PERSISTENT ORGANIC POLLUTANTS ALTITUDINAL GRADIENT TRANSPORT PATHWAYS CHINA IMPLICATIONS HISTORICAL RECORD CONTINENTAL-SHELF TOXIC-SUBSTANCES CONIFER NEEDLES MOUNTAIN LAKES BLACK CARBON
英文关键词	Long-range atmospheric transport (LRAT); Sediment; Historical trend; PAHs
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000378448600001
来源期刊	ENVIRONMENTAL POLLUTION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258812
推荐引用方式 GB/T 7714	Yang, Ruiqiang,Xie, Ting,Li, An,et al. Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,214.
APA	Yang, Ruiqiang.,Xie, Ting.,Li, An.,Yang, Handong.,Turner, Simon.,...&Jing, Chuanyong.(2016).Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau.ENVIRONMENTAL POLLUTION,214.
MLA	Yang, Ruiqiang,et al."Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau".ENVIRONMENTAL POLLUTION 214(2016).