File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Determination of heavy metal profiles in dated sediment cores from Sai Kung Bay, Hong Kong

TitleDetermination of heavy metal profiles in dated sediment cores from Sai Kung Bay, Hong Kong
Authors
Issue Date1997
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/envint
Citation
Environment International, 1997, v. 23 n. 3, p. 317-335 How to Cite?
AbstractEight sediment cores from Sai Kung Bay area were sampled and analysed for Cd, Cr, Cu, Fe, Ni, Pb, Zn, Ca, and organic matters. The cores were dated from an overall consideration of the 210Pb and maximum 137Cs activities, and historical records of previous land use, past heavy typhoon and rainstorm activities. Contamination by Cd, Cr, Cu, Pb, and Zn was found at coastal cores with a mean Enrichment Factor of 5.0, 1.0, 1.7, 1.4, and 1.3, respectively. The overall mass sedimentation rates were found varying from 0.111 - 0.454 g/cm2·y and recent average anthropogenic fluxes in μg/cm2·y for coastal/offshore cores were estimated as 0.52/0.028(Cd), 2.0/0.26(Cr), 7.6/0.92(Zn), 2.8/1.4(Cu), and 2.9/2.3(Pb), respectively. The major problem is Cd and Cr, in particular at coastal cores. The heavy metal input to the Sai Kung Bay areas was found to change considerably over the past 50 y starting from a low background level, via an intermediate period with cottage industries discharging Cr and Cd, to recent years with rapid urbanization and heavy boating activities emitting Cu, Pb, and Zn in addition to Cr and Cd. A rapid increase in heavy metal contents and a significant decrease in biological activities were found at the recently deposited coastal sediments, indicating a problem requiring urgent remedial action to stop further deterioration of the coastal environment of the beautiful resort area at Sai Kung Bay.
Persistent Identifierhttp://hdl.handle.net/10722/69243
ISSN
2015 Impact Factor: 5.929
2015 SCImago Journal Rankings: 2.684
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_HK
dc.contributor.authorLo, CKen_HK
dc.date.accessioned2010-09-06T06:11:53Z-
dc.date.available2010-09-06T06:11:53Z-
dc.date.issued1997en_HK
dc.identifier.citationEnvironment International, 1997, v. 23 n. 3, p. 317-335en_HK
dc.identifier.issn0160-4120en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69243-
dc.description.abstractEight sediment cores from Sai Kung Bay area were sampled and analysed for Cd, Cr, Cu, Fe, Ni, Pb, Zn, Ca, and organic matters. The cores were dated from an overall consideration of the 210Pb and maximum 137Cs activities, and historical records of previous land use, past heavy typhoon and rainstorm activities. Contamination by Cd, Cr, Cu, Pb, and Zn was found at coastal cores with a mean Enrichment Factor of 5.0, 1.0, 1.7, 1.4, and 1.3, respectively. The overall mass sedimentation rates were found varying from 0.111 - 0.454 g/cm2·y and recent average anthropogenic fluxes in μg/cm2·y for coastal/offshore cores were estimated as 0.52/0.028(Cd), 2.0/0.26(Cr), 7.6/0.92(Zn), 2.8/1.4(Cu), and 2.9/2.3(Pb), respectively. The major problem is Cd and Cr, in particular at coastal cores. The heavy metal input to the Sai Kung Bay areas was found to change considerably over the past 50 y starting from a low background level, via an intermediate period with cottage industries discharging Cr and Cd, to recent years with rapid urbanization and heavy boating activities emitting Cu, Pb, and Zn in addition to Cr and Cd. A rapid increase in heavy metal contents and a significant decrease in biological activities were found at the recently deposited coastal sediments, indicating a problem requiring urgent remedial action to stop further deterioration of the coastal environment of the beautiful resort area at Sai Kung Bay.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/envinten_HK
dc.relation.ispartofEnvironment Internationalen_HK
dc.titleDetermination of heavy metal profiles in dated sediment cores from Sai Kung Bay, Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0160-4120&volume=23&issue=3&spage=317&epage=335&date=1997&atitle=Determination+of+heavy+metal+profiles+in+dated+sediment+cores+from+Sai+Kung+Bay,+Hong+Kongen_HK
dc.identifier.emailFung, YS:ysfung@hku.hken_HK
dc.identifier.authorityFung, YS=rp00697en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0160-4120(97)00034-2en_HK
dc.identifier.scopuseid_2-s2.0-0030615710en_HK
dc.identifier.hkuros25319en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030615710&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume23en_HK
dc.identifier.issue3en_HK
dc.identifier.spage317en_HK
dc.identifier.epage335en_HK
dc.identifier.isiWOS:A1997XB93700006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridFung, YS=13309754700en_HK
dc.identifier.scopusauthoridLo, CK=16162440300en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats