Tiered probabilistic assessment of organohalogen compounds in the Han River and Danjiangkou Reservoir, central China

doi:10.1016/j.scitotenv.2017.01.194

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	Tiered probabilistic assessment of organohalogen compounds in the Han River and Danjiangkou Reservoir, central China
	Sun, Hongwei 2; Giesy, John P.4,5; Jin, Xiaowei 1; Wang, Jun 2,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017-05-15
卷号	586 页码:163-173
关键词	Organochlorine pesticide Polychlorinated biphenyl Polybrominated diphenyl ether Species sensitivity distribution Joint probability curve
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2017.01.194
英文摘要	Occurrence of organohalogen contaminants (OCs) including 12 organochlorine pesticides (OCPs), 7 polychlorinated biphenyl congeners (PCBs) and 7 polybrominated diphenyl ethers (PBDEs) were investigated in the Han River, which is the largest tributary of the Yangtze River, and Danjiangkou Reservoir, the source of water for China's South-to-North Water Diversion Project. OCPs were found to be dominant in water, with concentrations of 0.14-11 and 2.9-59 ng L-1 during winter and summer, respectively. In sediment, OCPs were also predominant contaminants during summer (5.0-1.7 x 10(2) ng g(-1)), whereas during winter PCBs (4.3-2.3 x 10(2) ng g(-1)) were dominant. Concentrations of OCs observed during this study were generally less or comparable to those from other locations in the world. Concentrations of OCPs were significantly greater in lower reaches of the Han River, during winter. This observation might be due to proximity of this location to more developed areas. Distributions of OCs between water and sediment were not at steady state except for PBDEs during winter. This disequilibrium is likely due to continuing inputs of pollutants. A tiered assessment of risks to aquatic organisms was conducted for OCs. Initially species sensitivity distributions (SSD) were employed to determine predicted no effect concentration (PNEC), followed by evaluation based on hazard quotients (HQ). In subsequent tiers, a probabilistic approach was used to develop joint probability distributions, where species sensitivity distributions were compared to distributions of measured concentrations of OCs. Consistent results were obtained by use of all methods, which suggested endosulfans and heptachlors could pose tisk to local aquatic organisms. Furthermore, heptachlors and PCBs might also cause potential adverse effect to health of humans through consumption of water. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	Sino-Africa Joint Research Center ; Hundred Talents Program of the Chinese Academy of Sciences[Y329671K01] ; Natural Science Foundation of Hubei Province of China[2016CFB284] ; "High Level Foreign Experts" program - State Administration of Foreign Experts Affairs[GDT20143200016] ; Canada Research Chair program ; Distinguished Visiting Professorship in the School of Biological Sciences of the University of Hong Kong ; Chinese Academy of Sciences[Y623321K01]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000398758800016
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1369]
专题	中国科学院武汉植物园
通讯作者	Wang, Jun
作者单位	1.China Natl Environm Monitoring Ctr, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan 430074, Peoples R China 4.Univ Saskatchewan, Dept Vet Biomed Sci, Saskatoon, SK, Canada 5.Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK, Canada
推荐引用方式 GB/T 7714	Sun, Hongwei,Giesy, John P.,Jin, Xiaowei,et al. Tiered probabilistic assessment of organohalogen compounds in the Han River and Danjiangkou Reservoir, central China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,586:163-173.
APA	Sun, Hongwei,Giesy, John P.,Jin, Xiaowei,&Wang, Jun.(2017).Tiered probabilistic assessment of organohalogen compounds in the Han River and Danjiangkou Reservoir, central China.SCIENCE OF THE TOTAL ENVIRONMENT,586,163-173.
MLA	Sun, Hongwei,et al."Tiered probabilistic assessment of organohalogen compounds in the Han River and Danjiangkou Reservoir, central China".SCIENCE OF THE TOTAL ENVIRONMENT 586(2017):163-173.