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Title: Heavy Metal Contamination and Distribution in the Urban Environment of Guangzhou, SE China
Authors: Duzgoren-Aydin, NS
Wong, CSC
Aydin, A
Song, Z
You, M
Li, XD 
Keywords: Guangzhou
Gully sediments
Heavy metals
Road dusts
Tunnel-ceiling dusts
Urban geochemistry
Issue Date: 2006
Publisher: Springer
Source: Environmental geochemistry and health, 2006, v. 28, no. 4, p. 375-391 How to cite?
Journal: Environmental geochemistry and health 
Abstract: Ever-increasing heavy metal accumulation in the urban environment of Guangzhou, the largest light industrial production base and one of the most rapidly developing cities in China, poses a serious threat to environment as well as to human health in the region. As a sink or source, urban deposits are good indicators of the level and extent of heavy metal accumulation in the surface environment. The aim of this preliminary study was to examine the distribution of heavy metal contamination in the urban environment of Guangzhou. It was based on a systematic sampling of road dusts and corresponding gully sediments along major roads running mainly through commercial and residential to industrial districts of the city. In addition to road dusts and gully sediments, ceiling dusts from the Pearl River Tunnel were also collected to characterize anthropogenic emissions dominated by traffic-related activities. In general, the level of Cd, Cu, Pb and Zn contaminations were more severe on the industrialized side of Guangzhou than on the western side where heavy traffic and industrial activities were limited. The primary determinants of the level of heavy metal contamination and the distribution of this contamination in the urban environment of Guangzhou were the site-specific conditions of its urban setting, particularly the types of industries, the nature of the traffic flow, sample residence times and variations in grain size of the particulate contaminants. This study highlights the complexity of the urban system and indicates that in just such a system individual urban components should be interlinked to assess the long-term environmental and health effects of heavy metal contamination. Among the heavy metals tested - Cd, Cu, Pb and Zn - the level of Zn contamination was the most severe and widespread, and thus requires immediate attention.
ISSN: 0269-4042
EISSN: 1573-2983
DOI: 10.1007/s10653-005-9036-7
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