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From headwaters to estuary: distribution, sources, and ecological risk of polycyclic aromatic hydrocarbons in an intensively human-impacted river, China

文献类型：期刊论文

作者Li, Yanan1,2; Zhen, Xiaomei1,2,3; Liu, Lin1,2,3; Tian, Chongguo1; Pan, Xiaohui1; Tang, Jianhui1
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2018-12-01
卷号25期号:36页码:36604-36614
关键词PAHs Xiaoqing River Water sediment partition Turbidity maximum zone Ecological risk
ISSN号0944-1344
DOI10.1007/s11356-018-3379-y
通讯作者Tang, Jianhui(jhtang@yic.ac.cn)
英文摘要Located in the Shandong Province, North China, the Xiaoqing River is heavily contaminated by industrial wastewater and domestic sewage. However, it plays a significant role with regard to irrigation for agriculture in the river basin. In this study, spatial distribution, sources, and the ecological risk of aqueous polycyclic aromatic hydrocarbons (PAHs) in the Xiaoqing River Basin were investigated from the headwaters to the estuary. Fifteen USEPA priority PAHs (except naphthalene) were quantified in water particulate and soluble phases and in sediment samples. sigma(15)PAHs concentrations in the sediment varied from 17.15 to 3808.01ng/g dry weight (dw), with an average of 988.72ng/g dw, suggesting severe pollution of the Xiaoqing River in comparison with other rivers worldwide. The composition of PAHs was characterized by the high abundance of 4-ring and 5-ring PAHs in sediments and 2-ring and 3-ring PAHs in water. Industrial wastewater is a significant source of PAHs. In the river section, point source was the main factor affecting the distribution of PAHs, while in the estuary region, estuarine turbidity maximum zone (ETM), riverine flow and discharge, and its hydrodynamic parameters play more key roles on PAH levels. Molecular diagnostic ratios have proved that PAHs in sediments were derived from mixed sources, primarily a combination of several combustion processes. Toxicity equivalency concentrations (TEQs) and Ecological risk assessment by Sediment Quality Guidelines indicated that PAHs in sediments might have certain unfavorable effects on ecosystems in certain sites.
WOS关键词SOURCE APPORTIONMENT ; SURFACE SEDIMENTS ; SPATIAL-DISTRIBUTION ; BED SEDIMENTS ; LOW-LATITUDE ; HAIHE RIVER ; PAH SOURCE ; BOHAI SEA ; WATER ; BAY
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000452489500073
资助机构Chinese Academy of Sciences ; National Science Foundation of China
源URL[http://ir.yic.ac.cn/handle/133337/34669]  
专题中国科学院烟台海岸带研究所
通讯作者Tang, Jianhui
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, 17 Chunhui Rd, Laishan Dist 264003, Yantai, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yanan,Zhen, Xiaomei,Liu, Lin,et al. From headwaters to estuary: distribution, sources, and ecological risk of polycyclic aromatic hydrocarbons in an intensively human-impacted river, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(36):36604-36614.
APA Li, Yanan,Zhen, Xiaomei,Liu, Lin,Tian, Chongguo,Pan, Xiaohui,&Tang, Jianhui.(2018).From headwaters to estuary: distribution, sources, and ecological risk of polycyclic aromatic hydrocarbons in an intensively human-impacted river, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(36),36604-36614.
MLA Li, Yanan,et al."From headwaters to estuary: distribution, sources, and ecological risk of polycyclic aromatic hydrocarbons in an intensively human-impacted river, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.36(2018):36604-36614.

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来源：烟台海岸带研究所

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