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Spatiotemporal variability of hydrocarbons in surface sediments from an intensively human-impacted Xiaoqing River-Laizhou Bay system in the eastern China: Occurrence, compositional profile and source apportionment

文献类型：期刊论文

作者He, Ding; Zhang, Kai; Cui, Xingqian; Tang, Jianhui; Sun, Yongge
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2018-12-15
卷号645页码:1172-1182
关键词River-estuary system Laizhou Bay Sedimentary hydrocarbons Spatiotemporal variability Source apportionment
ISSN号0048-9697
DOI10.1016/j.scitotenv.2018.07.193
产权排序[He, Ding ; Zhang, Kai ; Sun, Yongge] Zhejiang Univ, Sch Earth Sci, Inst Environm & Biogeochem eBig, Hangzhou 310027, Zhejiang, Peoples R China ; [Cui, Xingqian] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA ; [Tang, Jianhui] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
文献子类Article
英文摘要Hydrocarbons in coastal sediments record organic matter sources, and thus are widely used to elucidate both natural and anthropogenic inputs and for the estimation of pollution levels. Surface sediments were taken from Xiaoqing River and Laizhou Bay of eastern China in spring and summer of 2014, and were analyzed to determine the characteristics of aliphatic and aromatic hydrocarbons. Various hydrocarbons were identified, including n-alkanes, monomethylated alkanes (MMAs), isoprenoid alkanes, linear alkylbenzenes (LABs), hopanes, steranes and polycyclic aromatic hydrocarbons (PAHs). They were used to track both biogenic (terrestrial plant and microbial inputs) and anthropogenic inputs (petroleum and fossil fuel or biomass burning) in this ecosystem. The major part of hydrocarbons identified came from anthropogenic inputs including petroleum residues and synthetic detergents related hydrocarbons (16.2-90.3%), followed by higher plant (4.5-80.5%) and microbial inputs (0.8-57.5%). Interestingly, significant differences in hydrocarbon concentrations and distributions were observed between spring and summer. In particular, significant higher percentages of microbially derived hydrocarbons, but lower percentages of anthropogenic and vascular plant derived hydrocarbons were observed in summer than spring. Further principal component analyses suggested that the overall distribution of aliphatic hydrocarbons was mainly controlled by seasonality instead of spatiality. In contrast, the distribution of PAHs showed insignificant spatial and seasonal differences. Physical processes such as atmospheric transportation and further deposition, may be factors influencing the distribution of PAHs in the study area with widely biomass and fossil fuel burning. The decoupled distributions of aliphatic and aromatic hydrocarbons warrant further study for a comprehensive understanding of long term sedimentary hydrocarbon sources and input dynamics with increasing human activities. Major finding: Seasonal difference in aliphatic hydrocarbon composition was observed in surface sediments of Laizhou Bay, which is mainly caused by stronger phytoplankton and microbial inputs in summer under the overall high pollution background. (C) 2018 Elsevier B.V. All rights reserved.
WOS关键词POLYCYCLIC AROMATIC-HYDROCARBONS ; NORTHEASTERN TIBETAN PLATEAU ; CARBON ISOTOPIC COMPOSITION ; ORGANIC-MATTER ; ALIPHATIC-HYDROCARBONS ; COASTAL SEDIMENTS ; BOHAI SEA ; POLYAROMATIC HYDROCARBONS ; PETROLEUM-HYDROCARBONS ; SOURCE ROCKS
WOS研究方向Environmental Sciences
语种英语
WOS记录号WOS:000445164200117
资助机构National Science Foundation of China [41773098, 41372131] ; Chinese Academy of Sciences [KZZD-398 EW-14] ; "100" talent program of Zhejiang University [188020*194231701/008, 188020-193810201/102]
源URL[http://ir.yic.ac.cn/handle/133337/24603]  
专题烟台海岸带研究所_近岸生态与环境实验室
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.Zhejiang Univ, Sch Earth Sci, Inst Environm & Biogeochem eBig, Hangzhou 310027, Zhejiang, Peoples R China;
2.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA;
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 He, Ding,Zhang, Kai,Cui, Xingqian,et al. Spatiotemporal variability of hydrocarbons in surface sediments from an intensively human-impacted Xiaoqing River-Laizhou Bay system in the eastern China: Occurrence, compositional profile and source apportionment[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,645:1172-1182.
APA He, Ding,Zhang, Kai,Cui, Xingqian,Tang, Jianhui,&Sun, Yongge.(2018).Spatiotemporal variability of hydrocarbons in surface sediments from an intensively human-impacted Xiaoqing River-Laizhou Bay system in the eastern China: Occurrence, compositional profile and source apportionment.SCIENCE OF THE TOTAL ENVIRONMENT,645,1172-1182.
MLA He, Ding,et al."Spatiotemporal variability of hydrocarbons in surface sediments from an intensively human-impacted Xiaoqing River-Laizhou Bay system in the eastern China: Occurrence, compositional profile and source apportionment".SCIENCE OF THE TOTAL ENVIRONMENT 645(2018):1172-1182.

入库方式： OAI收割

来源：烟台海岸带研究所

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