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
File Download
Links for fulltext
(May Require Subscription)
(May Require Subscription)
- Publisher Website: 10.1007/s12665-010-0635-y
- Scopus: eid_2-s2.0-80255138202
- Find via
Supplementary
-
Citations:
-
Appears in Collections:
| Title | 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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Authors | Qi, L1 Zhou, MF2 Zhao, Z1 Hu, J1 Huang, Y1 | ||||||||
| Keywords | Automobile catalyst PGE Road dust Roadside soil South China | ||||||||
| Issue Date | 2011 | ||||||||
| Publisher | Springer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665 | ||||||||
| Citation | Environmental Earth Sciences, 2011, v. 64 n. 6, p. 1683-1692 [How to Cite?] DOI: http://dx.doi.org/10.1007/s12665-010-0635-y | ||||||||
| Abstract | The 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). | ||||||||
| ISSN | 1866-6280 2011 Impact Factor: 1.059 2011 SCImago Journal Rankings: 0.048 | ||||||||
| DOI | http://dx.doi.org/10.1007/s12665-010-0635-y | ||||||||
| ISI Accession Number ID | WOS:000296360600020
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. | ||||||||
| References | References in Scopus |
| dc.contributor.author | Qi, L | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| dc.contributor.author | Zhou, MF | ||||||||
| dc.contributor.author | Zhao, Z | ||||||||
| dc.contributor.author | Hu, J | ||||||||
| dc.contributor.author | Huang, Y | ||||||||
| dc.date.accessioned | 2012-02-21T05:43:44Z | ||||||||
| dc.date.available | 2012-02-21T05:43:44Z | ||||||||
| dc.date.issued | 2011 | ||||||||
| dc.description.abstract | The 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.nature | published_or_final_version | ||||||||
| dc.description.other | Springer Open Choice, 21 Feb 2012 | ||||||||
| dc.identifier.citation | Environmental 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.doi | http://dx.doi.org/10.1007/s12665-010-0635-y | ||||||||
| dc.identifier.eissn | 1866-6299 | ||||||||
| dc.identifier.epage | 1692 | ||||||||
| dc.identifier.isi | WOS:000296360600020
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.issn | 1866-6280 2011 Impact Factor: 1.059 2011 SCImago Journal Rankings: 0.048 | ||||||||
| dc.identifier.issue | 6 | ||||||||
| dc.identifier.openurl | | ||||||||
| dc.identifier.scopus | eid_2-s2.0-80255138202 | ||||||||
| dc.identifier.spage | 1683 | ||||||||
| dc.identifier.uri | http://hdl.handle.net/10722/144873 | ||||||||
| dc.identifier.volume | 64 | ||||||||
| dc.language | Eng | ||||||||
| dc.publisher | Springer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665 | ||||||||
| dc.publisher.place | Germany | ||||||||
| dc.relation.ispartof | Environmental Earth Sciences | ||||||||
| dc.relation.references | References in Scopus | ||||||||
| dc.rights | The Author(s) | ||||||||
| dc.rights | Creative Commons: Attribution 3.0 Hong Kong License | ||||||||
| dc.subject | Automobile catalyst | ||||||||
| dc.subject | PGE | ||||||||
| dc.subject | Road dust | ||||||||
| dc.subject | Roadside soil | ||||||||
| dc.subject | South China | ||||||||
| dc.title | 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 | ||||||||
| dc.type | Article |
Author Affiliations
- Institute of Geochemistry Chinese Academy of Sciences
- The University of Hong Kong