Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system

doi:10.1016/j.scitotenv.2020.141769

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system
	Pan, Xiaohui 3; Zhen, Xiaomei 1,2,3; Tian, Chongguo 3; Tang, Jianhui 3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-01-10
卷号	751 页码:8
关键词	SCCPs MCCP Xiaoqing River Estuarine turbidity maximum zone Laizhou Bay Source Fate
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.141769
通讯作者	Tang, Jianhui(jhtang@yic.ac.cn)
英文摘要	Chlorinated paraffins (CPs) are widely employed in a variety of domestic and industrial products, and are ubiquitously detected in the environment. Short-chain chlorinated paraffins (SCCPs) have been listed in the Stockholm Convention as persistent organic pollutants (POPs), but not medium-chain chlorinated paraffins (MCCPs), even though they exhibit physicochemical properties and environmental behaviors similar to SCCPs. However, very limited data are available regarding their environmental behaviors and fates in river-estuary systems. China is the major producer of chlorinated paraffins (CPs), and Shandong Province is the main producer of CPs in China. Here, we investigated the distribution, transport, and fate of SCCPs and MCCPs in a heavily polluted river in Shandong Province, aiming to explore the distributions of CPs between dissolved and particulate phases, and between water and sediment phases, as well as the transport of CPs from river headwaters to estuaries and the roles of the estuarine turbidity maximum zone (ETM) on the fate of CPs. CP concentrations in sediments were 9.1-16,000 ng/g dw(mean value: 1000 ng/g dw) for SCCPs and 2.4-27,000 ng/g dw (mean value: 4400 ng/g dw) for MCCPs. In the water column, CP concentrations were 7.4-470 ng/L for SCCPs (mean value: 43 ng/L) and 4.0-120 ng/L for MCCPs (mean value: 27 ng/L). CP concentrations in riverine sediments were among the highest worldwide. SCCPs accounted for 95% of CPs (sum of SCCPs and MCCPs) in the dissolved phase. Cities around the river basin were found to be important pollution sources for CPs. Long-chained and more chlorinated congeners with larger LogKow values might be more likely to be 'salted-out', and thus, will be sequestrated in sediments in the ETM, while those lighter congener groups with relatively high water solubility were prone to be transported by water flow to larger distances. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[U1806207] ; National Natural Science Foundation of China[41103074] ; National Natural Science Foundation of China[41773138] ; Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences[YIC Y855011024] ; Key deployment project of Centre for Ocean Mega -Science, Chinese Academy of Sciences[COMS2019J08]
WOS关键词	LAIZHOU BAY ; EMISSION INVENTORY ; MARINE-SEDIMENTS ; SUBSTANCES ; LEGACY ; RISKS ; BASIN
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000587300800081
资助机构	National Natural Science Foundation of China ; Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences ; Key deployment project of Centre for Ocean Mega -Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/28275]
专题	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烟台海岸带研究所_近岸生态与环境实验室
通讯作者	Tang, Jianhui
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Beijing, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Pan, Xiaohui,Zhen, Xiaomei,Tian, Chongguo,et al. Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,751:8.
APA	Pan, Xiaohui,Zhen, Xiaomei,Tian, Chongguo,&Tang, Jianhui.(2021).Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system.SCIENCE OF THE TOTAL ENVIRONMENT,751,8.
MLA	Pan, Xiaohui,et al."Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system".SCIENCE OF THE TOTAL ENVIRONMENT 751(2021):8.