SCSIO OpenIR  > 中科院海洋生物资源可持续利用重点实验室
Mercury distribution, speciation and bioavailability in sediments from the Pearl River Estuary, Southern China
Yu, XJ; Li, HX; Pan, K; Yan, Y; Wang, WX; wwang@ust.hk
2012
Source PublicationMARINE POLLUTION BULLETIN
ISSN0025-326X
Volume64Issue:8Pages:1699-1704
AbstractSurface sediments sediments and sediment cores collected from the Pearl River Estuary (PRE) were analyzed for total mercury (THg) concentrations and speciation using a sequential extraction method. The mobility of Hg in sediments was also assessed using a series of single extraction methods. The surface sediments from the PRE showed slightly elevated levels of Hg, with concentrations ranging from 109 to 453 ng/g. The vertical profile of THg in sediment cores indicated an accelerated input of Hg over the past decades. The organo-chelated and strong-complexed Hg species were the dominant Hg species in the sediments, while the more mobile phases of Hg made up less than 0.5% of THg. Less than 10% of the Hg in the sediments was extracted by single extraction, depending on the extractant employed. Significant relationships were found between the total organic carbon and THg, geochemical speciation, and extractability, indicating the important role of organic matter in controlling the distribution, mobility, and bioavailability of Hg in sediments. (C) 2012 Elsevier Ltd. All rights reserved.
Department[Pan, Ke; Wang, Wen-Xiong] Hong Kong Univ Sci & Technol HKUST, Div Life Sci, Kowloon, Hong Kong, Peoples R China; [Yu, Xiujuan; Li, Hengxiang; Yan, Yan; Wang, Wen-Xiong] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China
KeywordMercury Sediment Sequential Extraction Gut Juice Pearl River Estuary
Subject AreaEnvironmental Sciences ; Marine & Freshwater Biology
Language英语
Funding ProjectLMB
WOS IDWOS:000307492800034
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/9844
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorwwang@ust.hk
Recommended Citation
GB/T 7714
Yu, XJ,Li, HX,Pan, K,et al. Mercury distribution, speciation and bioavailability in sediments from the Pearl River Estuary, Southern China[J]. MARINE POLLUTION BULLETIN,2012,64(8):1699-1704.
APA Yu, XJ,Li, HX,Pan, K,Yan, Y,Wang, WX,&wwang@ust.hk.(2012).Mercury distribution, speciation and bioavailability in sediments from the Pearl River Estuary, Southern China.MARINE POLLUTION BULLETIN,64(8),1699-1704.
MLA Yu, XJ,et al."Mercury distribution, speciation and bioavailability in sediments from the Pearl River Estuary, Southern China".MARINE POLLUTION BULLETIN 64.8(2012):1699-1704.
Files in This Item:
File Name/Size DocType Version Access License
Mercury distribution(361KB) 开放获取--Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.