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Article: Field study on desorption rates of polynuclear aromatic hydrocarbons from contaminated marine sediment

TitleField study on desorption rates of polynuclear aromatic hydrocarbons from contaminated marine sediment
Authors
KeywordsContaminated Sediments
Desorption Kinetics
Environmental Fate
Polycyclic Aromatic Hydrocarbons
Issue Date2000
PublisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://etc.allenpress.com/
Citation
Environmental Toxicology And Chemistry, 2000, v. 19 n. 10, p. 2431-2435 How to Cite?
AbstractThe present study examines desorption kinetics of hydrophobic organic contaminants from sediment under conditions mimicking marine disposal. Trays of contaminated marine sediment were deployed in the subtidal zone of a pristine field site, and samples were taken at time intervals to study the desorption of acenaphthene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, chrysene, fluoranthene, naphthalene, and phenanthrene over a period of 51 d. Results of the study indicated that 49.4 to 98.0% of the polycyclic aromatic hydrocarbons (PAHs) in the contaminated sediment were desorbed upon disposal in the coastal environment. The field desorption kinetics of these PAHs can be described by a two-compartment model. The measured slow desorption rate constants, k 2, for acenaphthene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, chrysene, fluoranthene, naphthalene, and phenanthrene were found to be 0.018, 0.061, 0.016, 0.028, 0.035, 0.021, 0.083, 0.031, and 0.080/d, respectively. Some of these data were in accordance with literature-reported values from laboratory desorption studies in which desorbed PAHs were directly extracted from the aqueous phase. However, they were at least an order of magnitude smaller than those obtained by conventional gas-stripping desorption techniques.
Persistent Identifierhttp://hdl.handle.net/10722/178692
ISSN
2015 Impact Factor: 2.763
2015 SCImago Journal Rankings: 1.523
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yen_US
dc.contributor.authorWu, RSSen_US
dc.contributor.authorHong, HSen_US
dc.contributor.authorPoon, KFen_US
dc.contributor.authorLam, MHWen_US
dc.date.accessioned2012-12-19T09:49:11Z-
dc.date.available2012-12-19T09:49:11Z-
dc.date.issued2000en_US
dc.identifier.citationEnvironmental Toxicology And Chemistry, 2000, v. 19 n. 10, p. 2431-2435en_US
dc.identifier.issn0730-7268en_US
dc.identifier.urihttp://hdl.handle.net/10722/178692-
dc.description.abstractThe present study examines desorption kinetics of hydrophobic organic contaminants from sediment under conditions mimicking marine disposal. Trays of contaminated marine sediment were deployed in the subtidal zone of a pristine field site, and samples were taken at time intervals to study the desorption of acenaphthene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, chrysene, fluoranthene, naphthalene, and phenanthrene over a period of 51 d. Results of the study indicated that 49.4 to 98.0% of the polycyclic aromatic hydrocarbons (PAHs) in the contaminated sediment were desorbed upon disposal in the coastal environment. The field desorption kinetics of these PAHs can be described by a two-compartment model. The measured slow desorption rate constants, k 2, for acenaphthene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, chrysene, fluoranthene, naphthalene, and phenanthrene were found to be 0.018, 0.061, 0.016, 0.028, 0.035, 0.021, 0.083, 0.031, and 0.080/d, respectively. Some of these data were in accordance with literature-reported values from laboratory desorption studies in which desorbed PAHs were directly extracted from the aqueous phase. However, they were at least an order of magnitude smaller than those obtained by conventional gas-stripping desorption techniques.en_US
dc.languageengen_US
dc.publisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://etc.allenpress.com/en_US
dc.relation.ispartofEnvironmental Toxicology and Chemistryen_US
dc.subjectContaminated Sedimentsen_US
dc.subjectDesorption Kineticsen_US
dc.subjectEnvironmental Fateen_US
dc.subjectPolycyclic Aromatic Hydrocarbonsen_US
dc.titleField study on desorption rates of polynuclear aromatic hydrocarbons from contaminated marine sedimenten_US
dc.typeArticleen_US
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_US
dc.identifier.authorityWu, RSS=rp01398en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0033796958en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033796958&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume19en_US
dc.identifier.issue10en_US
dc.identifier.spage2431en_US
dc.identifier.epage2435en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridZhang, Y=36072041800en_US
dc.identifier.scopusauthoridWu, RSS=7402945079en_US
dc.identifier.scopusauthoridHong, HS=7401521551en_US
dc.identifier.scopusauthoridPoon, KF=7006268733en_US
dc.identifier.scopusauthoridLam, MHW=7202630175en_US

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