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

doi:10.1007/s11356-018-3379-y

YIC-IR

	From headwaters to estuary: distribution, sources, and ecological risk of polycyclic aromatic hydrocarbons in an intensively human-impacted river, China
	Li, Yanan 1,2; Zhen, Xiaomei 1,2,3; Liu, Lin 1,2,3; Tian, Chongguo1 ; Pan, Xiaohui 1; Tang, Jianhui1
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
	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
DOI	10.1007/s11356-018-3379-y
通讯作者	Tang, Jianhui([email protected])
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.
资助机构	Chinese Academy of Sciences ; National Science Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	SOURCE APPORTIONMENT ; SURFACE SEDIMENTS ; SPATIAL-DISTRIBUTION ; BED SEDIMENTS ; LOW-LATITUDE ; HAIHE RIVER ; PAH SOURCE ; BOHAI SEA ; WATER ; BAY
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000452489500073
引用统计	被引频次：4[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.cn/handle/133337/34670
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.