Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2579
Title: The spatial and temporal distribution of heavy metals in sediments of Victoria Harbour, Hong Kong
Authors: Tang, WYC
Ip, CM
Zhang, G
Shin, PKS
Qian, PY
Li, X 
Keywords: Trace metals
Pb isotopes
Sediment
Historical sources
Victoria Harbour
Hong Kong
Issue Date: 2008
Publisher: Elsevier
Source: Marine pollution bulletin, 2008, v. 57, no. 6-12, p. 816–825 How to cite?
Journal: Marine pollution bulletin 
Abstract: Victoria Harbour has received substantial loadings of pollutants from industrial and municipal wastewater discharged since the 1950s. Inputs of contaminants have declined dramatically during the last two decades as a result of better controls at the source and improved wastewater treatment facilities. To assess the spatial and temporal changes of metal contaminants in sediments in Victoria Harbour, core and grab sediments were collected. The central harbour areas were generally contaminated with heavy metals. The spatial distribution of trace metals can probably be attributed to the proximity of major urban and industrial discharge points, and to the effect of tidal flushing in the harbour. In the sediment cores, the highest concentrations of trace metals were observed to have accumulated during the 1950s–1980s, corresponding with the period of rapid urban and industrial development in Hong Kong. From the late 1980s, there has been a major decline in the concentrations of trace metals, due to a reduction in industrial activities and to the enactment of wastewater pollution controls in the territory. The Pb isotopic compositions of the sediments revealed the anthropogenic inputs of Pb to the harbour. The [sup 206]Pb/[sup 207]Pb ratios varied from 1.154 to 1.190, which were lower than those of background geological materials in Hong Kong ([sup 206]Pb/[sup 207]Pb: 1.201–1.279). The data also indicated that the Pb in the harbour sediments most likely originated from mixed sources, including the leaded gasoline used in the past and other anthropogenic sources.
URI: http://hdl.handle.net/10397/2579
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2008.01.027
Rights: Marine Pollution Bulletin © 2008 Elsevier. The journal web site is located at http://www.sciencedirect.com.
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
B56 Victoria Sediment MPB 2008.pdfPre-published version381.4 kBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

41
Last Week
1
Last month
3
Citations as of Jun 2, 2016

WEB OF SCIENCETM
Citations

36
Last Week
1
Last month
3
Citations as of Dec 6, 2016

Page view(s)

298
Last Week
0
Last month
Checked on Dec 4, 2016

Download(s)

317
Checked on Dec 4, 2016

Google ScholarTM

Check

Altmetric



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