Polychlorinated diphenyl ethers (PCDEs) in surface sediments, suspended particulate matter (SPM) and surface water of Chaohu Lake, China

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	Polychlorinated diphenyl ethers (PCDEs) in surface sediments, suspended particulate matter (SPM) and surface water of Chaohu Lake, China
	Shi, Jiaqi; Zhang, Xuesheng; Wang, Tantan; Gao, Lei; Feng, Mingbao; Qin, Li; Cheng, Danru
刊名	ENVIRONMENTAL POLLUTION
	2018-10-01
卷号	241 页码:441-450
关键词	Polychlorinated diphenyl ethers Chaohu Lake Distribution Compositional pattern Partition coefficient
ISSN号	0269-7491
文献子类	Article
英文摘要	Polychlorinated diphenyl ethers (PCDEs) are typical halogenated aromatic pollutants that have shown various toxicological effects on organisms. However, the contamination status of PCDEs in the fresh water lakes of China remains poorly researched. In this study, the levels of 15 congeners of PCDEs in the sediments, suspended particulate matter (SPM) and water of Chaohu Lake were determined. The results showed that the ranges of concentrations of total PCDEs (Sigma PCDEs) in the sediment, SPM and water were 0.279 ng g(-1) dry weight (d.w.)-2.474 ng g(-1) d.w., 0.331 ng g(-1) d.w.-2.013 ng g(-1) d.w. and 0351 ng L-1 -2.021 ng L-1, respectively. The most abundant congeners found in sediments, SPM and water were 3,3',4,4'-tetra-CDE, deca-CDE and 2,4,6-tri-CDE, with average contributive ratios of 17.36%, 15.48% and 20.63%, respectively. The medium and higher chlorinated PCDEs (e.g., penta- and deca-CDEs) were the dominant congeners in sediments and SPM. The percentages of lower chlorinated PCDEs (e.g., tri-CDEs) in the water were higher than those in the sediments. The combined input of PCDEs from the eight main tributaries to Chaohu Lake was estimated at 6.94 kg y(-1), Strong linear correlations between the concentrations of Sigma PCDEs and organic carbon (OC) contents in three type samples from Chaohu Lake suggested OC could influence the distribution of PCDEs in Chaohu Lake substantially. In addition, the calculated average organic carbon normalized partition coefficients (logK(oc)) of 15 PCDEs between water and SPM were in the range of 4.55-5.45 mL g(-1). This study confirmed that Chaohu Lake is contaminated by PCDEs. (C) 2018 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40628]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Shi, Jiaqi,Zhang, Xuesheng,Wang, Tantan,et al. Polychlorinated diphenyl ethers (PCDEs) in surface sediments, suspended particulate matter (SPM) and surface water of Chaohu Lake, China[J]. ENVIRONMENTAL POLLUTION,2018,241:441-450.
APA	Shi, Jiaqi.,Zhang, Xuesheng.,Wang, Tantan.,Gao, Lei.,Feng, Mingbao.,...&Cheng, Danru.(2018).Polychlorinated diphenyl ethers (PCDEs) in surface sediments, suspended particulate matter (SPM) and surface water of Chaohu Lake, China.ENVIRONMENTAL POLLUTION,241,441-450.
MLA	Shi, Jiaqi,et al."Polychlorinated diphenyl ethers (PCDEs) in surface sediments, suspended particulate matter (SPM) and surface water of Chaohu Lake, China".ENVIRONMENTAL POLLUTION 241(2018):441-450.