IEECAS OpenIR  > 粉尘与环境研究室
Elemental Carbon and Polycyclic Aromatic Compounds in a 150-Year Sediment Core from Lake Qinghai, Tibetan Plateau, China: Influence of Regional and Local Sources and Transport Pathways
Han, Y. M.1,2,3,7; Wei, C.1,2; Bandowe, B. A. M.4; Wilcke, W.4,5; Cao, J. J.1,2; Xu, B. Q.6; Gao, S. P.6; Tie, X. X.1,2; Li, G. H.1,2; Jin, Z. D.2; An, Z. S.2,3
2015-04-07
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
卷号49期号:7页码:4176-4183
文章类型Article
摘要

Elemental carbon (EC) and polycyclic aromatic compounds (PACs) are potential proxies for the reconstruction of change in human activities and the origin of air masses in historic times. In this study, the historic deposition of char and soot (the two subtypes of EC) and PACs in a 150-year sediment core from different topographic subbasins of Lake Qinghai on the Qinghai Tibetan Plateau (QTP) were reconstructed. The objective was to explore how the variations in the concentrations of EC and PACs, in the ratios of char to soot and of oxygenated polycyclic aromatic hydrocarbons (OPAHs) to parent PAHs, and in the composition of the PAC mixtures reflect historical changes in climate and human activity and the origin of air masses arriving at the QTP. The deposition fluxes of soot in the different subbasins were similar, averaging 0.18 (range of 0.15-0.25) and 0.16 (0.13-0.23) g m(-2) year(-1), respectively, but they varied for char (averaging 0.11 and 0.22 g m(-2) year(-1), respectively), suggesting ubiquitous atmospheric deposition of soot and local river inputs of char. The different vertical distributions of the char/soot ratios in the different subbasins can be interpreted in terms of the different transport mechanisms of char and soot. An abrupt increase in soot concentrations since 1980 coincides with results from the QTP ice cores that were interpreted to be indicative of soot transport from South Asia. Similar concentration patterns of PAHs with soot and 9,10-anthraquinone/anthracene (9,10-AQ/ANT) ratios all >2.0 suggest regional PAC sources. Increasing PAH/soot ratios and decreasing 9,10-AQ/ANT ratios since the beginning of the 1970s indicate increasing local emissions. The historical trends of these diagnostic ratios indicate an increase in the fossil-fuel contribution since the beginning of the 1970s. The increase of perylene concentrations with increasing core depth and the ratio of perylene to its penta-aromatic isomers indicate that perylene originates mainly from in situ biogenic diagenesis. We demonstrate that the concentrations of EC, char, soot, and PACs in sediments can be used to reconstruct local, regional, and remote sources and transport pathways of pollutants to the QTP.

WOS标题词Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1021/es504568m
关键词[WOS]Black Carbon ; Hydrocarbons Pahs ; Source Identification ; United-states ; Ambient Air ; Record ; Particles ; Soils ; Soot ; Derivatives
收录类别SCI
语种英语
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000352659000022
出版者AMER CHEMICAL SOC
引用统计
被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9370
专题粉尘与环境研究室
通讯作者Han, Y. M.
作者单位1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
3.Joint Ctr Global Change Studies, Beijing 100875, Peoples R China
4.Univ Bern, Geog Inst, CH-3012 Bern, Switzerland
5.KIT, Inst Geog & Geoecol, D-76131 Karlsruhe, Germany
6.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
7.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
推荐引用方式
GB/T 7714
Han, Y. M.,Wei, C.,Bandowe, B. A. M.,et al. Elemental Carbon and Polycyclic Aromatic Compounds in a 150-Year Sediment Core from Lake Qinghai, Tibetan Plateau, China: Influence of Regional and Local Sources and Transport Pathways[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2015,49(7):4176-4183.
APA Han, Y. M..,Wei, C..,Bandowe, B. A. M..,Wilcke, W..,Cao, J. J..,...&An, Z. S..(2015).Elemental Carbon and Polycyclic Aromatic Compounds in a 150-Year Sediment Core from Lake Qinghai, Tibetan Plateau, China: Influence of Regional and Local Sources and Transport Pathways.ENVIRONMENTAL SCIENCE & TECHNOLOGY,49(7),4176-4183.
MLA Han, Y. M.,et al."Elemental Carbon and Polycyclic Aromatic Compounds in a 150-Year Sediment Core from Lake Qinghai, Tibetan Plateau, China: Influence of Regional and Local Sources and Transport Pathways".ENVIRONMENTAL SCIENCE & TECHNOLOGY 49.7(2015):4176-4183.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Elemental Carbon and(2133KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Han, Y. M.]的文章
[Wei, C.]的文章
[Bandowe, B. A. M.]的文章
百度学术
百度学术中相似的文章
[Han, Y. M.]的文章
[Wei, C.]的文章
[Bandowe, B. A. M.]的文章
必应学术
必应学术中相似的文章
[Han, Y. M.]的文章
[Wei, C.]的文章
[Bandowe, B. A. M.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。