He, Ding; Zhang, Kai; Tang, Jianhui
; Cui, Xingqian; Sun, Yongge发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2018-09-15
卷号636页码:787-797
关键词Fecal sterolsSewage contaminationBiomarkersStable carbon isotopesRiver-estuary system
研究领域Environmental Sciences & Ecology
DOI10.1016/j.scitotenv.2018.04.314
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; [Tang, Jianhui] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Cui, Xingqian] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA
作者部门海岸带环境过程实验室
英文摘要Sedimentary fecal sterols and other sterol biomarkers, combined with bulk total organic carbon (TOC) and its stable carbon isotope were applied to characterize the sewage contamination across a ca. 280 km transect from the Xiaoqing River to the Laizhou Bay, a typical river-estuary system subjected to extensive anthropogenic stress due to rapid regional urbanization and industrialization in eastern China. Two sampling events were performed in both spring and summer seasons in the Laizhou Bay adjacent to the Xiaoqing River in order to assess the potential seasonal variation. Fecal sterols such as coprostanol and epicoprostanol, which are typical indicators of anthropogenic sewage input, displayed high concentrations of up to 63.2 mu g g(-1) dry weight (dw) and 13.1 mu g g(-1) dw, respectively. Results suggested that most of the stations along the Xiaoqing River were severely contaminated by fecal inputs with a decreasing trend from the river to the estuary that was mainly explained by the increasing distance from the diffuse sewage sources and the gradual dilution by sea water. Although there was no significant difference in fecal sterol concentrations between spring and summer in the Laizhou Bay, suggestive of no significant difference in sewage abundance, significantly higher average epicoprostanol,coprostanol and lower coprostanol,epicoprostanol ratios were observed in spring than summer, indicative of different sewage sources (e.g., human vs. non-human). Seasonal discharge and land-runoff, air temperature related to microbial activity differences and different extend of animal manure irrigation during agricultural planting could be additional reasons and need further investigation. Nevertheless, fecal sterol concentrations, distributions and diagnostic ratios should all be taken into consideration to better understand sewage inputs and source dynamics in river estuary ecosystems. (C) 2018 Elsevier B.V. All rights reserved.
文章类型Article
资助机构National Science Foundation of China [41773098, 41372131]; Scientific Planning Foundation of Guangdong Province [2015A070710016]; Chinese Academy of Sciences [KZZD-EW-14]; "100" talent program of Zhejiang University [188020*194231701/008, 188020-193810201/102]
收录类别SCI
语种英语
关键词[WOS]ORGANIC-MATTER; SURFACE SEDIMENTS; PERFLUOROALKYL ACIDS; SEASONAL VARIABILITY; SUBTROPICAL ESTUARY; TROPICAL ESTUARY; COASTAL WATERS; LAIZHOU BAY; BOHAI SEA; CONTAMINATION
研究领域[WOS]Environmental Sciences
WOS记录号WOS:000436599000076
引用统计被引频次：18[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24532
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
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.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China;
3.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA
推荐引用方式
GB/T 7714He, Ding,Zhang, Kai,Tang, Jianhui,et al. Using fecal sterols to assess dynamics of sewage input in sediments along a human-impacted river-estuary system in eastern China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,636:787-797.
APAHe, Ding,Zhang, Kai,Tang, Jianhui,Cui, Xingqian,&Sun, Yongge.(2018).Using fecal sterols to assess dynamics of sewage input in sediments along a human-impacted river-estuary system in eastern China.SCIENCE OF THE TOTAL ENVIRONMENT,636,787-797.
MLAHe, Ding,et al."Using fecal sterols to assess dynamics of sewage input in sediments along a human-impacted river-estuary system in eastern China".SCIENCE OF THE TOTAL ENVIRONMENT 636(2018):787-797.
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