Total mercury and monomethylmercury in water, sediments, and hydrophytes from the rivers, estuary, and bay along the Bohai Sea coast, northeastern China

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	Total mercury and monomethylmercury in water, sediments, and hydrophytes from the rivers, estuary, and bay along the Bohai Sea coast, northeastern China
	Wang, SF ; Jia, YF ; Wang, SY ; Wang, X ; Wang, H ; Zhao, ZX ; Liu, BZ
刊名	APPLIED GEOCHEMISTRY
	2009
卷号	24 期号:9 页码:1702-1711
ISSN号	0883-2927
通讯作者	Jia, YF, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Peoples R China
中文摘要	Mercury contamination in aquatic environments is of worldwide concern because of its high biomagnification factor in food chains and long-range transport. The rivers, estuary and the bay along the northwestern Bohai Sea coast, northeastern China have been heavily contaminated by Hg due to long-term Zn smelting and chlor-alkali production. This work investigated the distributions of total Hg (THg) and smonomethylmercury (MMHg) in the water, sediment and hydrophytes from this area. Concentrations of THg in sediment (0.5-64 mg kg(-1)) and water (39-2700 ng L-1) were elevated by 1-3 orders of magnitude compared to background concentrations, which induced high concentrations of MMHg in these media. The highest concentration of MMHg in sediment reached 35 mu g kg-1. which was comparable to that in the Hg mining area, Wanshan, China, and the highest MMHg concentration of 3.0 ng L-1 in the water sample exceeded the MMHg Chinese drinking water guideline of 1.0 ng L-1. Concentrations of THg in a sediment profile from Jinzhou Bay were found to be consistent with annual Hg emission flux from a local Zn smelter (r = 0.74, p < 0.01), indicating that Hg contamination was mainly caused by Zn smelting locally. For some freshwater hydrophytes, concentrations of THg and MMHg ranged from 5.2 to 100 mu g kg(-1) and 0.15 to 12 mu g kg(-1), respectively. Compared to sediment, concentrations of THg in hydrophytes were 2-3 orders of magnitude lower but MMHg was comparable or higher, indicating that the bioaccumulation in plants was distinct for the two Hg species studied. The data suggest that a significant load of Hg has been released into the northwestern coastal region of the Bohai Sea. (C) 2009 Elsevier Ltd. All rights reserved.
学科主题	Geochemistry & Geophysics
收录类别	SCI
资助信息	973 project [2009CB426301, 2008CB418200]; National Natural Science Foundation of China [40773076, 40703026]
语种	英语
WOS记录号	WOS:000270644900009
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54033]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Wang, SF,Jia, YF,Wang, SY,et al. Total mercury and monomethylmercury in water, sediments, and hydrophytes from the rivers, estuary, and bay along the Bohai Sea coast, northeastern China[J]. APPLIED GEOCHEMISTRY,2009,24(9):1702-1711.
APA	Wang, SF.,Jia, YF.,Wang, SY.,Wang, X.,Wang, H.,...&Liu, BZ.(2009).Total mercury and monomethylmercury in water, sediments, and hydrophytes from the rivers, estuary, and bay along the Bohai Sea coast, northeastern China.APPLIED GEOCHEMISTRY,24(9),1702-1711.
MLA	Wang, SF,et al."Total mercury and monomethylmercury in water, sediments, and hydrophytes from the rivers, estuary, and bay along the Bohai Sea coast, northeastern China".APPLIED GEOCHEMISTRY 24.9(2009):1702-1711.