Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia

Trace metals and rare earth elements (REEs) in the soft tissue of rocky shore Rock Oyster, Saccostrea cucullata, along the east coast of Peninsular Malaysia were determined. Significant inter-spatial variations ( p < 0.05) in trace metals and REEs were recorded. Significant positive correlation...

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Main Authors:	Miskon, Mohd Fuad, Shazili, N.A.M., Mohamad, Faridah
Format:	Article
Language:	English
Published:	Taylor & Francis 2013
Subjects:	GC Oceanography GE Environmental Sciences QD Chemistry
Online Access:	http://irep.iium.edu.my/59614/ http://irep.iium.edu.my/59614/ http://irep.iium.edu.my/59614/ http://irep.iium.edu.my/59614/1/Trace%20metals%20and%20rare%20earth%20elements%20in%20Rock%20Oyster%20Saccostrea%20cucullata%20along%20the%20east%20coast%20of%20Peninsular%20Malaysia.pdf

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spelling	iium-596142017-11-24T02:34:07Z http://irep.iium.edu.my/59614/ Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia Miskon, Mohd Fuad Shazili, N.A.M. Mohamad, Faridah GC Oceanography GE Environmental Sciences QD Chemistry Trace metals and rare earth elements (REEs) in the soft tissue of rocky shore Rock Oyster, Saccostrea cucullata, along the east coast of Peninsular Malaysia were determined. Significant inter-spatial variations ( p < 0.05) in trace metals and REEs were recorded. Significant positive correlations ( p < 0.01) were found among REEs concentrations. A few significant correlations were found for trace metals and REEs. Average distribution of metals indicated that Johor State had the highest concentrations compared with Pahang and Terengganu for all metals, except for Pb and Cu. This could most likely be attributed to the highly urbanized and industrialized activities such as sewage discharge. The metal accumulation patterns in the oyster indicated enrichment of essential metals. Sites with relatively high concentrations of the contaminant metals Hg, Cu, Pb and Zn were related to their close proximity to industrial and urban sites or to boating and aquaculture activities. Relative enrichment of Cu, Pb and Zn in oysters in the whole study even from relatively pristine areas is thought to be derived from natural sources as these metals are significantly correlated to REEs distribution. The distribution of REEs show close similarity between all sampling sites, suggesting that they are of similar origins. In all sites, typical saw-tooth chondrite-normalized patterns were observed, which strongly suggested the REEs bioaccumulated in oyster tissues is derived from geogenic sources. Typical deviations from this pattern were found for Ce and Eu and could be explained by their redox chemistry. Results of light to heavy REEs (LREE/HREE) ratios suggested REEs fractionation in coastline marine environment produced more light REEs and less heavy REEs absorbed in the soft tissue of S. cucullata. The ratio of La/Yb in the oyster of 27.3 was remarkably similar to Terengganu River basin soil of 33.0 and to Terengganu River sediment of 27.6. Comparison of metal concentration with maximum permissible limits of toxic metals in food established in different countries, as well as Malaysian Food Act 1983 and Food Regulations 1985 Fourteen Schedule, indicated values were well within safety levels, except for Cu and Zn. Along with its wide distribution on rocky shore areas along the east coast, the present results of trace metals and REEs recorded in soft tissue of S. cucullata collected from 14 sites along the east coast of Peninsular Malaysia served as baseline data for future reference. Taylor & Francis 2013 Article PeerReviewed application/pdf en http://irep.iium.edu.my/59614/1/Trace%20metals%20and%20rare%20earth%20elements%20in%20Rock%20Oyster%20Saccostrea%20cucullata%20along%20the%20east%20coast%20of%20Peninsular%20Malaysia.pdf Miskon, Mohd Fuad and Shazili, N.A.M. and Mohamad, Faridah (2013) Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia. Aquatic Ecosystem Health and Management, 16 (1). pp. 78-87. ISSN 1463-4988 E-ISSN 1539-4077 http://www.tandfonline.com/doi/abs/10.1080/14634988.2013.762327?journalCode=uaem20 10.1080/14634988.2013.762327
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	GC Oceanography GE Environmental Sciences QD Chemistry
spellingShingle	GC Oceanography GE Environmental Sciences QD Chemistry Miskon, Mohd Fuad Shazili, N.A.M. Mohamad, Faridah Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia
description	Trace metals and rare earth elements (REEs) in the soft tissue of rocky shore Rock Oyster, Saccostrea cucullata, along the east coast of Peninsular Malaysia were determined. Significant inter-spatial variations ( p < 0.05) in trace metals and REEs were recorded. Significant positive correlations ( p < 0.01) were found among REEs concentrations. A few significant correlations were found for trace metals and REEs. Average distribution of metals indicated that Johor State had the highest concentrations compared with Pahang and Terengganu for all metals, except for Pb and Cu. This could most likely be attributed to the highly urbanized and industrialized activities such as sewage discharge. The metal accumulation patterns in the oyster indicated enrichment of essential metals. Sites with relatively high concentrations of the contaminant metals Hg, Cu, Pb and Zn were related to their close proximity to industrial and urban sites or to boating and aquaculture activities. Relative enrichment of Cu, Pb and Zn in oysters in the whole study even from relatively pristine areas is thought to be derived from natural sources as these metals are significantly correlated to REEs distribution. The distribution of REEs show close similarity between all sampling sites, suggesting that they are of similar origins. In all sites, typical saw-tooth chondrite-normalized patterns were observed, which strongly suggested the REEs bioaccumulated in oyster tissues is derived from geogenic sources. Typical deviations from this pattern were found for Ce and Eu and could be explained by their redox chemistry. Results of light to heavy REEs (LREE/HREE) ratios suggested REEs fractionation in coastline marine environment produced more light REEs and less heavy REEs absorbed in the soft tissue of S. cucullata. The ratio of La/Yb in the oyster of 27.3 was remarkably similar to Terengganu River basin soil of 33.0 and to Terengganu River sediment of 27.6. Comparison of metal concentration with maximum permissible limits of toxic metals in food established in different countries, as well as Malaysian Food Act 1983 and Food Regulations 1985 Fourteen Schedule, indicated values were well within safety levels, except for Cu and Zn. Along with its wide distribution on rocky shore areas along the east coast, the present results of trace metals and REEs recorded in soft tissue of S. cucullata collected from 14 sites along the east coast of Peninsular Malaysia served as baseline data for future reference.
format	Article
author	Miskon, Mohd Fuad Shazili, N.A.M. Mohamad, Faridah
author_facet	Miskon, Mohd Fuad Shazili, N.A.M. Mohamad, Faridah
author_sort	Miskon, Mohd Fuad
title	Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia
title_short	Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia
title_full	Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia
title_fullStr	Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia
title_full_unstemmed	Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia
title_sort	trace metals and rare earth elements in rock oyster saccostrea cucullata along the east coast of peninsular malaysia
publisher	Taylor & Francis
publishDate	2013
url	http://irep.iium.edu.my/59614/ http://irep.iium.edu.my/59614/ http://irep.iium.edu.my/59614/ http://irep.iium.edu.my/59614/1/Trace%20metals%20and%20rare%20earth%20elements%20in%20Rock%20Oyster%20Saccostrea%20cucullata%20along%20the%20east%20coast%20of%20Peninsular%20Malaysia.pdf
first_indexed	2023-09-18T21:24:27Z
last_indexed	2023-09-18T21:24:27Z
_version_	1777412098358247424

Trace metals and rare earth elements in Rock Oyster Saccostrea cucullata along the east coast of Peninsular Malaysia

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