Elemental Mercury in Natural Waters: Occurrence and Determination of Particulate Hg(0)

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Elemental Mercury in Natural Waters: Occurrence and Determination of Particulate Hg(0)
	Wang, Yongmin; Li, Yanbin; Liu, Guangliang; Wang, Dingyong; Jiang, Guibin; Cai, Yong
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2015-08-18
卷号	49 期号:16 页码:9742-9749
英文摘要	Elemental mercury, Hg(0), is ubiquitous in water and involved in key Hg biogeochemical processes. It is extensively studied as a purgeable dissolved species, termed dissolved gaseous mercury (DGM). Little information is available regarding nonpurgeable particulate Hg(0) in water, Hg(0) bound to suspended particulate matter (SPM), which is presumably present due to high affinity of Hg(0) adsorption on solids. By employing stable isotope tracer and isotope dilution (ID) techniques, we investigated the occurrence and quantification of particulate Hg(0) after Hg(0) being spiked into natural waters, aiming to provide firsthand information on particulate Hg(0) in water. A considerable fraction of Hg-201(0) spiked in water (about 70% after 4 h equilibration) was bound to SPM and 'nonpurgeable, suggesting the occurrence of particulate Hg(0) in natural waters. A scheme, involving isotope dilution, purge and trap, and inductively coupled plasma mass spectrometry detection, was proposed to quantify particulate Hg(0) by the difference between DGM and total Hg(0), determined immediately and at equilibration after spiking ID Hg isotope, respectively. The application of this newly established method revealed the presence of particulate Hg(0) in Florida Everglades water, as the determined DGM levels (0.14 to 0.22 ng L-1) were remarkably lower than total Hg(0) (0.41 to 0.75 ng L-1).
研究领域[WOS]	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000359891700042
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32565]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Wang, Yongmin,Li, Yanbin,Liu, Guangliang,et al. Elemental Mercury in Natural Waters: Occurrence and Determination of Particulate Hg(0)[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2015,49(16):9742-9749.
APA	Wang, Yongmin,Li, Yanbin,Liu, Guangliang,Wang, Dingyong,Jiang, Guibin,&Cai, Yong.(2015).Elemental Mercury in Natural Waters: Occurrence and Determination of Particulate Hg(0).ENVIRONMENTAL SCIENCE & TECHNOLOGY,49(16),9742-9749.
MLA	Wang, Yongmin,et al."Elemental Mercury in Natural Waters: Occurrence and Determination of Particulate Hg(0)".ENVIRONMENTAL SCIENCE & TECHNOLOGY 49.16(2015):9742-9749.