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Article: The characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: A case study in the Pearl River Delta region, South China
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TitleThe characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: A case study in the Pearl River Delta region, South China
 
AuthorsQi, L1
Zhou, MF2
Zhao, Z1
Hu, J1
Huang, Y1
 
KeywordsAutomobile catalyst
PGE
Road dust
Roadside soil
South China
 
Issue Date2011
 
PublisherSpringer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665
 
CitationEnvironmental Earth Sciences, 2011, v. 64 n. 6, p. 1683-1692 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s12665-010-0635-y
 
AbstractThe emission of platinum group elements (PGE) from automobile catalytic converters has led to enrichment of PGE in road dusts and roadside soils in urban areas that are well above the natural background levels. This paper evaluates the source of contamination of all the PGE and Au in road dusts and roadside soils in the Pearl River Delta region, including three major cities, Shenzhen, Guangzhou and Hong Kong, South China. Samples were digested using Carius tube and analyzed by isotope dilution ICP-MS; Os was separated by distillation and other PGE by Te-coprecipitation. All samples have elevated PGE concentrations above the background values of uncontaminated soils and contain higher Pt, Pd and Rh than other PGE. The maximum values are 181 ng/g Pt, 514 ng/g Pd, 53 ng/g Rh and 1345 ng/g Au. There are clear positive correlations between Pt and Pd, Pt and Rh, and Pd and Rh, indicating that the main emitted of PGE from automobile catalyst are Pt, Pd and Rh. High concentrations of Au were also found in road dust samples from Hong Kong and Shenzhen. Dust samples with higher Os contents have lower 187Os/ 188Os ratios. Samples from Hong Kong show relatively high Pt/Rh ratios. Positive correlations between Pt and Ru, and Pt and Ir were found in Shenzhen and Hong Kong, but only positive correlations between Pt and Ir were found in Guangzhou. These different characteristics reflect different automobile catalytic systems used in Hong Kong and mainland China. © 2010 The Author(s).
 
ISSN1866-6280
2012 Impact Factor: 1.445
2012 SCImago Journal Rankings: 0.601
 
DOIhttp://dx.doi.org/10.1007/s12665-010-0635-y
 
ISI Accession Number IDWOS:000296360600020
Funding AgencyGrant Number
Chinese Academy of SciencesKZCX2-YW-BR-09
National Natural Science Foundation of ChinaNSFC 40773070
Research Grant Council of Hong KongHKU7057/05P
Funding Information:

This study was supported by "CAS Hundred Talents" Project from Chinese Academy of Sciences to Qi Liang (KZCX2-YW-BR-09), the National Natural Science Foundation of China (NSFC 40773070), and the Research Grant Council of Hong Kong (HKU7057/05P). We thank Dr. D. C. Gregoire from the Geological Survey of Canada for providing us the spike solutions of 190Os, 101Ru, 105Pd, 193Ir, and 194Pt.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorQi, L
 
dc.contributor.authorZhou, MF
 
dc.contributor.authorZhao, Z
 
dc.contributor.authorHu, J
 
dc.contributor.authorHuang, Y
 
dc.date.accessioned2012-02-21T05:43:44Z
 
dc.date.available2012-02-21T05:43:44Z
 
dc.date.issued2011
 
dc.description.abstractThe emission of platinum group elements (PGE) from automobile catalytic converters has led to enrichment of PGE in road dusts and roadside soils in urban areas that are well above the natural background levels. This paper evaluates the source of contamination of all the PGE and Au in road dusts and roadside soils in the Pearl River Delta region, including three major cities, Shenzhen, Guangzhou and Hong Kong, South China. Samples were digested using Carius tube and analyzed by isotope dilution ICP-MS; Os was separated by distillation and other PGE by Te-coprecipitation. All samples have elevated PGE concentrations above the background values of uncontaminated soils and contain higher Pt, Pd and Rh than other PGE. The maximum values are 181 ng/g Pt, 514 ng/g Pd, 53 ng/g Rh and 1345 ng/g Au. There are clear positive correlations between Pt and Pd, Pt and Rh, and Pd and Rh, indicating that the main emitted of PGE from automobile catalyst are Pt, Pd and Rh. High concentrations of Au were also found in road dust samples from Hong Kong and Shenzhen. Dust samples with higher Os contents have lower 187Os/ 188Os ratios. Samples from Hong Kong show relatively high Pt/Rh ratios. Positive correlations between Pt and Ru, and Pt and Ir were found in Shenzhen and Hong Kong, but only positive correlations between Pt and Ir were found in Guangzhou. These different characteristics reflect different automobile catalytic systems used in Hong Kong and mainland China. © 2010 The Author(s).
 
dc.description.naturepublished_or_final_version
 
dc.description.otherSpringer Open Choice, 21 Feb 2012
 
dc.identifier.citationEnvironmental Earth Sciences, 2011, v. 64 n. 6, p. 1683-1692 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s12665-010-0635-y
 
dc.identifier.doihttp://dx.doi.org/10.1007/s12665-010-0635-y
 
dc.identifier.eissn1866-6299
 
dc.identifier.epage1692
 
dc.identifier.isiWOS:000296360600020
Funding AgencyGrant Number
Chinese Academy of SciencesKZCX2-YW-BR-09
National Natural Science Foundation of ChinaNSFC 40773070
Research Grant Council of Hong KongHKU7057/05P
Funding Information:

This study was supported by "CAS Hundred Talents" Project from Chinese Academy of Sciences to Qi Liang (KZCX2-YW-BR-09), the National Natural Science Foundation of China (NSFC 40773070), and the Research Grant Council of Hong Kong (HKU7057/05P). We thank Dr. D. C. Gregoire from the Geological Survey of Canada for providing us the spike solutions of 190Os, 101Ru, 105Pd, 193Ir, and 194Pt.

 
dc.identifier.issn1866-6280
2012 Impact Factor: 1.445
2012 SCImago Journal Rankings: 0.601
 
dc.identifier.issue6
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-80255138202
 
dc.identifier.spage1683
 
dc.identifier.urihttp://hdl.handle.net/10722/144873
 
dc.identifier.volume64
 
dc.languageEng
 
dc.publisherSpringer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665
 
dc.publisher.placeGermany
 
dc.relation.ispartofEnvironmental Earth Sciences
 
dc.relation.referencesReferences in Scopus
 
dc.rightsThe Author(s)
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.subjectAutomobile catalyst
 
dc.subjectPGE
 
dc.subjectRoad dust
 
dc.subjectRoadside soil
 
dc.subjectSouth China
 
dc.titleThe characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: A case study in the Pearl River Delta region, South China
 
dc.typeArticle
 
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Author Affiliations
  1. Institute of Geochemistry Chinese Academy of Sciences
  2. The University of Hong Kong