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Article: Polymer-ligands: A novel chemical device for monitoring heavy metals in the aquatic environment?

TitlePolymer-ligands: A novel chemical device for monitoring heavy metals in the aquatic environment?
Authors
KeywordsArticle
Bioaccumulation
Environmental Exposure
Environmental Monitoring
Marine Environment
Mussel
Sea Pollution
Issue Date1996
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul
Citation
Marine Pollution Bulletin, 1996, v. 32 n. 5, p. 391-396 How to Cite?
AbstractMajor problems involved in using bio-indicators to monitor heavy metals in the marine environment include standardizing a great variety of physical and biological factors which have a significant effect on metal accumulation. The fact that different species may have different accumulation strategies for different metals, and also that the natural distribution of indicator species is limited, often prevents comparison between monitoring results in different geographic areas and hydrographic conditions. Furthermore, environmental effects on the uptake and depuration of the metals in the biological indicators are not well understood. In the present study, uptake of Cd, Pb and Zn by four polymer-ligands (i.e. Chelex® 100, Poly(4-vinylpyridine), Sephadex Sp C-25 and Amberlite IR-122) were studied. Laboratory results showed that Chelex® 100 was most effective in taking up the soluble fractions of these three metals at low ambient concentrations (0.1-10 mg l-1). Equilibrium at low concentrations was reached in about 21 days. Concentration factors after 21 days exposure ranged from 2500 to 5500, depending upon the metal species and ambient concentration. Both uptake and release of metals by Chelex are directly responsive to ambient concentrations and exposure time. Results of field transplantation of Chelex and mussels (Perna virvidis) also showed that Chelex accumulated significantly higher levels of Cd, Cr and Pb, similar levels of Cu, and a lower level of Zn than those of mussels under natural field conditions. Coefficients of variations of metal uptake were also much smaller with Chelex. The suitability of using Chelex® 100 as a novel chemical device for monitoring metal pollution in the aquatic environment is evaluated against selection criteria established for metal bioindicators.
Persistent Identifierhttp://hdl.handle.net/10722/92772
ISSN
2015 Impact Factor: 3.099
2015 SCImago Journal Rankings: 1.264
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorLau, TCen_HK
dc.date.accessioned2010-09-17T10:56:42Z-
dc.date.available2010-09-17T10:56:42Z-
dc.date.issued1996en_HK
dc.identifier.citationMarine Pollution Bulletin, 1996, v. 32 n. 5, p. 391-396en_HK
dc.identifier.issn0025-326Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/92772-
dc.description.abstractMajor problems involved in using bio-indicators to monitor heavy metals in the marine environment include standardizing a great variety of physical and biological factors which have a significant effect on metal accumulation. The fact that different species may have different accumulation strategies for different metals, and also that the natural distribution of indicator species is limited, often prevents comparison between monitoring results in different geographic areas and hydrographic conditions. Furthermore, environmental effects on the uptake and depuration of the metals in the biological indicators are not well understood. In the present study, uptake of Cd, Pb and Zn by four polymer-ligands (i.e. Chelex® 100, Poly(4-vinylpyridine), Sephadex Sp C-25 and Amberlite IR-122) were studied. Laboratory results showed that Chelex® 100 was most effective in taking up the soluble fractions of these three metals at low ambient concentrations (0.1-10 mg l-1). Equilibrium at low concentrations was reached in about 21 days. Concentration factors after 21 days exposure ranged from 2500 to 5500, depending upon the metal species and ambient concentration. Both uptake and release of metals by Chelex are directly responsive to ambient concentrations and exposure time. Results of field transplantation of Chelex and mussels (Perna virvidis) also showed that Chelex accumulated significantly higher levels of Cd, Cr and Pb, similar levels of Cu, and a lower level of Zn than those of mussels under natural field conditions. Coefficients of variations of metal uptake were also much smaller with Chelex. The suitability of using Chelex® 100 as a novel chemical device for monitoring metal pollution in the aquatic environment is evaluated against selection criteria established for metal bioindicators.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbulen_HK
dc.relation.ispartofMarine Pollution Bulletinen_HK
dc.subjectArticleen_HK
dc.subjectBioaccumulationen_HK
dc.subjectEnvironmental Exposureen_HK
dc.subjectEnvironmental Monitoringen_HK
dc.subjectMarine Environmenten_HK
dc.subjectMusselen_HK
dc.subjectSea Pollutionen_HK
dc.titlePolymer-ligands: A novel chemical device for monitoring heavy metals in the aquatic environment?en_HK
dc.typeArticleen_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/0025-326X(95)00154-Fen_HK
dc.identifier.scopuseid_2-s2.0-0029667270en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0029667270&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume32en_HK
dc.identifier.issue5en_HK
dc.identifier.spage391en_HK
dc.identifier.epage396en_HK
dc.identifier.isiWOS:A1996UR12600012-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridLau, TC=7102222310en_HK

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