Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2569
Title: The study of metal contamination in urban soils of Hong Kong using a GIS-based approach
Authors: Li, X 
Lee, SL
Wong, CSC
Shi, W 
Thornton, I
Keywords: Urban soil
Heavy metals
GIS
Pb isotope
Hong Kong
Issue Date: May-2004
Publisher: Elsevier
Source: Environmental pollution, May 2004, v. 129, no. 1, p. 113-124 How to cite?
Journal: Environmental pollution 
Abstract: The study of regional variations and the anthropogenic contamination by metals of soils is very important for environmental planning and monitoring in urban areas. An extensive survey was conducted in the highly urbanized Kowloon area (46.9 km²) of Hong Kong, using a systematic sampling strategy with a sampling density of 3–5 composite soil samples (0–15 cm) per km². Geochemical maps of ‘total’ metals (Cd, Cr, Cu, Ni, Pb and Zn) from strong acid extraction in the surface soils were produced based on geographical information system (GIS) technology. A significant spatial relationship was found for Ni, Cu, Pb and Zn in the soils using a GIS-based analysis, suggesting that these metal contaminants in the soils of the Kowloon area had common sources. Several hot-spot areas of metal contamination were identified from the composite metal geochemical map, mainly in the old industrial and residential areas. A further GIS analysis revealed that road junctions, major roads and industrial buildings were possible sources of heavy metals in the urban soils. The Pb isotope composition of the contaminated soils showed clear anthropogenic origins.
URI: http://hdl.handle.net/10397/2569
ISSN: 0269-7491
DOI: 10.1016/j.envpol.2003.09.030
Rights: Environmental Pollution © 2003 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 
B28 Kowloon Soil EP 2004.pdfPre-published version109.08 kBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

231
Last Week
0
Last month
2
Citations as of Jun 2, 2016

WEB OF SCIENCETM
Citations

201
Last Week
0
Last month
2
Citations as of Aug 31, 2016

Page view(s)

307
Last Week
2
Last month
Checked on Aug 28, 2016

Download(s)

1,190
Checked on Aug 28, 2016

Google ScholarTM

Check

Altmetric



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