Article: Abundance, composition and vertical distribution of polycyclic aromatic hydrocarbons in sediments of the Mai Po Inner Deep Bay of Hong Kong

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TitleAbundance, composition and vertical distribution of polycyclic aromatic hydrocarbons in sediments of the Mai Po Inner Deep Bay of Hong Kong
AuthorsZhao, Z1
Zhuang, YX1
Gu, JD1
KeywordsSediment core
Sediment
PAHs
Mangrove
Deposition profile
210Pb dating
Issue Date2012
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0963-9292
CitationEcotoxicology, 2012, v. 21 n. 6, p. 1734-1742 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s10646-012-0951-y
AbstractThe distribution and changes of polycyclic aromatic hydrocarbons (PAHs) contamination in mangrove sediments of Mai Po Inner Deep Bay Ramsar Site of Hong Kong SAR were investigated. Surface sediments (10 cm) collected from four sampling sites (SZ, SP, MF and M) exhibited significant spatial variations in concentrations of total PAH (with SigmaPAHs ranging from 161.7 to 383.7 ng g(-1) dry wt), as well as the composition of 16 US EPA priority PAH compounds. The highest PAHs concentrations were found in the mangrove sediments. Moreover, a sediment core was extracted from mangrove area is used to reconstruct the high-resolution depositional record of PAHs by (210)Pb isotope analysis, showing the amounts of PAHs remained relatively constant for the past 41 years. Urbanization of Shenzhen Economic Zone, the rapid increase in vehicle numbers and energy consumption in the last two decades contributed to the PAHs detected in sediments. The source-diagnostic ratios indicated that pyrogenic input are important throughout the record and the surface sediments, and suggest that diesel fuel combustion, and hence traffic of heavier vehicles, is the most probable cause of PAHs.
ISSN0963-9292
2011 Impact Factor: 2.355
2011 SCImago Journal Rankings: 0.141
DOIhttp://dx.doi.org/10.1007/s10646-012-0951-y
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorZhao, Z
dc.contributor.authorZhuang, YX
dc.contributor.authorGu, JD
dc.date.accessioned2012-09-20T08:25:55Z
dc.date.available2012-09-20T08:25:55Z
dc.date.issued2012
dc.description.abstractThe distribution and changes of polycyclic aromatic hydrocarbons (PAHs) contamination in mangrove sediments of Mai Po Inner Deep Bay Ramsar Site of Hong Kong SAR were investigated. Surface sediments (10 cm) collected from four sampling sites (SZ, SP, MF and M) exhibited significant spatial variations in concentrations of total PAH (with SigmaPAHs ranging from 161.7 to 383.7 ng g(-1) dry wt), as well as the composition of 16 US EPA priority PAH compounds. The highest PAHs concentrations were found in the mangrove sediments. Moreover, a sediment core was extracted from mangrove area is used to reconstruct the high-resolution depositional record of PAHs by (210)Pb isotope analysis, showing the amounts of PAHs remained relatively constant for the past 41 years. Urbanization of Shenzhen Economic Zone, the rapid increase in vehicle numbers and energy consumption in the last two decades contributed to the PAHs detected in sediments. The source-diagnostic ratios indicated that pyrogenic input are important throughout the record and the surface sediments, and suggest that diesel fuel combustion, and hence traffic of heavier vehicles, is the most probable cause of PAHs.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationEcotoxicology, 2012, v. 21 n. 6, p. 1734-1742 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s10646-012-0951-y
dc.identifier.citeulike10816378
dc.identifier.doihttp://dx.doi.org/10.1007/s10646-012-0951-y
dc.identifier.epage1742
dc.identifier.hkuros209713
dc.identifier.issn0963-9292
2011 Impact Factor: 2.355
2011 SCImago Journal Rankings: 0.141
dc.identifier.issue6
dc.identifier.pmid22699413
dc.identifier.scopuseid_2-s2.0-84864874131
dc.identifier.spage1734
dc.identifier.urihttp://hdl.handle.net/10722/165971
dc.identifier.volume21
dc.languageeng
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0963-9292
dc.publisher.placeUnited States
dc.relation.ispartofEcotoxicology
dc.relation.referencesReferences in Scopus
dc.rightsThe original publication is available at www.springerlink.com
dc.subject.meshBays - analysis - chemistry
dc.subject.meshEnvironmental Monitoring - methods
dc.subject.meshGeologic Sediments - analysis - chemistry
dc.subject.meshPolycyclic Hydrocarbons, Aromatic - analysis
dc.subject.meshWater Pollutants, Chemical - analysis
dc.subjectSediment core
dc.subjectSediment
dc.subjectPAHs
dc.subjectMangrove
dc.subjectDeposition profile
dc.subject210Pb dating
dc.titleAbundance, composition and vertical distribution of polycyclic aromatic hydrocarbons in sediments of the Mai Po Inner Deep Bay of Hong Kong
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong