Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/2577
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Wong, CSC | - |
dc.creator | Li, X | - |
dc.date.accessioned | 2014-12-11T08:27:30Z | - |
dc.date.available | 2014-12-11T08:27:30Z | - |
dc.identifier.issn | 0048-9697 | - |
dc.identifier.uri | http://hdl.handle.net/10397/2577 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Science of the Total Environment © 2003 Elsevier. The journal web site is located at http://www.sciencedirect.com. | en_US |
dc.subject | Pb contamination | en_US |
dc.subject | Pb isotope | en_US |
dc.subject | Chemical partitioning of Pb | en_US |
dc.subject | Urban soils | en_US |
dc.subject | Hong Kong | en_US |
dc.title | Pb contamination and isotopic composition of urban soils in Hong Kong | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 185 | - |
dc.identifier.epage | 195 | - |
dc.identifier.volume | 319 | - |
dc.identifier.issue | 1-3 | - |
dc.identifier.doi | 10.1016/S0048-9697(03)00403-0 | - |
dcterms.abstract | In the urban environment, intense human activities can lead to degradation of environmental quality and have potential long-term effects on human health. In the present study, Pb contamination of urban soil cores in Hong Kong was investigated using a combination of the ‘total’ concentration, chemical partitioning and isotopic composition of Pb in the soils. The analytical results showed that urban soil cores in close vicinity to high traffic volumes (>40 000 vehicles per day) were usually contaminated with Pb, suggesting atmospheric deposition of Pb as a consequence of vehicular emissions arising from the combustion of leaded gasoline in the past. Increasing Pb concentrations were generally associated with decreasing [sup 206]Pb/[sup 207]Pb ratios of the contaminated soil cores, offering strong evidence of accumulation of Pb derived from anthropogenic sources. In selected contaminated soil cores, the [sup 206]Pb/[sup 207]Pb ratios tended to increase in the order: carbonate<exchangeable<Fe–Mn oxide<organic<residual fractions. The distribution of the [sup 206]Pb/[sup 207]Pb ratios in the five operationally defined chemical fractions showed that the [sup 206]Pb/[sup 207]Pb ratios generally increased with increasing stability, demonstrating preferential association of anthropogenic Pb with the carbonate, exchangeable, Fe–Mn oxide and organic fractions in the soils. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Science of the total environment, 5 Feb. 2004, v. 319, no. 1-3, p. 185–195 | - |
dcterms.isPartOf | Science of the total environment | - |
dcterms.issued | 2004-02-05 | - |
dc.identifier.isi | WOS:000189128000014 | - |
dc.identifier.scopus | 2-s2.0-1242316365 | - |
dc.identifier.pmid | 14967510 | - |
dc.identifier.eissn | 1879-1026 | - |
dc.identifier.rosgroupid | r17842 | - |
dc.description.ros | 2003-2004 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
B43 EP UrbanSoil 2004.pdf | Pre-published version | 222.16 kB | Adobe PDF | View/Open |
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