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

2013 ◽  
Vol 16 (1) ◽  
pp. 78-87 ◽  
Author(s):  
M. M. Fuad ◽  
N. A. M. Shazili ◽  
M. Faridah
Keyword(s):  
Rare Earth ◽  
Trace Metals ◽  
Rare Earth Elements ◽  
East Coast ◽  
Peninsular Malaysia ◽  
Rock Oyster ◽  
Saccostrea Cucullata

scholarly journals Rare Earth Elements Behaviour at West Coast of Peninsular Malaysia Rocky Shore Ecosystem Using Saccostrea cucullata as Bioindicator

2017 ◽  
Vol 29 (10) ◽  
pp. 2211-2215
Author(s):  
Y. Kamaruzzaman ◽  
M. Miskan ◽  
F. Fikriah ◽  
M.M. Rahman ◽  
Ong Meng Chuan ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
West Coast ◽  
Rocky Shore ◽  
Peninsular Malaysia ◽  
Saccostrea Cucullata

scholarly journals Fractionation of Rare Earth Elements in Surface Sediment of Peninsular Malaysia Coastal Waters

2020 ◽  
Vol 33 (1) ◽  
pp. 166-170
Author(s):  
M.M. Fuad ◽  
F. Fikriah ◽  
B.Y. Kamaruzzaman ◽  
M.M. Rahman ◽  
N.A. Nik Nurizni
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Coastal Waters ◽  
Inductively Coupled Plasma ◽  
Environmental Fate ◽  
Atomic Weight ◽  
Peninsular Malaysia ◽  
Inductively Coupled ◽  
Contaminant Metals ◽  
Comparative Results

The environmental fate of rare earth elements (REEs) in the Malaysian environment is limitedly known; however, industrial emission is increasing. This study focused on the REE assessment of the surface sediments obtained from rocky shore ecosystems along the Peninsular Malaysia coastal waters, on deliberating interspatial variability, and on describing their partitioning. Samples were treated with the Teflon Bomb technique, and the concentration of 14 natural REEs was measured through inductively coupled plasma mass spectrometry (ICP-MS). Through quality control practices, the results were verified by employing a standard reference material BCR 667. The tendency of REE distribution was the most mutual property of particular places worldwide and in Malaysia. Among REEs present in sediment, strong correlations were observed, which indicated REEs they behave coherently to each other in different processes of geochemical fractionation. The contaminant metals, namely manganese, arsenic, cadmium and copper, were strongly correlated with REEs (p < 0.01 and p < 0.05); hence, these metals may be nonanthropogenic in origin because REEs are geogenic in origin. The enrichment factor (EF) values of the comparative results were divided by the region-specified deficiency to minimal enrichment in all the regions, except in the east coast region, which presented considerable enrichment, suggesting a probability of discharge of the anthropogenic effluent. The results of the analysis normalized to chondrite presented patterns of low atomic weight rare earth elements (LREEs) enrichment, gradual downward pattern and depletion through high atomic weight rare earth elements (HREEs) concentrations.

Cretaceous – Paleogene boundary Fish Clay at Højerup (Stevns Klint, Denmark): trace metals in kerogen

2007 ◽  
Vol 178 (5) ◽  
pp. 411-421 ◽  
Author(s):  
Pavle I. Premović ◽  
Bratislav Ž. Todorović ◽  
Mirjana S. Pavlović
Keyword(s):  
Rare Earth ◽  
Trace Metals ◽  
Rare Earth Elements ◽  
Humic Substances ◽  
Rare Earths ◽  
Land Surface ◽  
Coastal Areas ◽  
Geochemical Analyses ◽  
The Impact ◽  
Fish Clay

Abstract Geochemical analyses of trace metals (Ir, Ni, Co, Cr, Zn, Au and Pb) and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in kerogen of the black marl at the Cretaceous–Paleogene boundary Fish Clay at Højerup have been undertaken. Substantial proportions of the trace metals and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics were transported mainly through fluvial transport into the site of the deposition of the Fish Clay. The local weathering/leaching of the impact-ejecta fallout on the land surface or local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing trace metals and rare earths for these humic substances. Apparently, chondritic Ir, Au, Ni, Co, Cr and chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by the rocks exposed in the coastal areas of eastern Denmark.

scholarly journals Assessment on the bioavailability of rare earth elements in rocky shore organisms and their potential effects on human health

2016 ◽  
Vol 15 (1) ◽  
Author(s):  
Mohd Fuad Miskon ◽  
Fikriah Faudz ◽  
Kamaruzzaman Yunus ◽  
Md. Mokhlesur Rahman
Keyword(s):  
Rare Earth ◽  
Soft Tissue ◽  
Rare Earth Elements ◽  
Human Health ◽  
Rocky Shore ◽  
Distribution Patterns ◽  
Peninsular Malaysia ◽  
Permissible Limits ◽  
Thais Clavigera ◽  
Icp Ms

Introduction: This study focuses on the distribution of rare earth elements in rocky shore ecosystem along east coast of Peninsular Malaysia coastal waters using the soft tissue of Saccostrea cucullata, Thais clavigera and Nerita chameleon as bioindicator, and deliberating on interspecies variability. The results were examined in relation to human health as well. Methods: Samples were treated using Teflon Bomb technique and concentrations of 14 naturally occurring REEs were measured using ICP-MS technique, along with selected trace metals for added data. Results:The results were certified using standard reference material BCR 668 with quality control practices. Constant REEs abundance patterns were found in all samples, with enrichment of LREEs over HREEs, which suggests that REEs are transported as a coherent group through aquatic ecosystems. There are variations in the REEs abundance for every site, however, they reveal connections in their REEs distribution patterns, which suggest that they are of parallel origins. As no data on the permissible limits of REEs in biota reported, assessment with permissible limits are quantified by comparing with Hg, Pb and Cd data as REEs concentrations seems to be lower compared with these metal values. Conclusions: Results showed that the values are considerably below the safety limit, with the exception of Ce and Nd in the soft tissue of S. cucullata.

Bioavailability of trace metals and rare earth elements (REE) from the tropical soils of a coal mining area

2020 ◽  
Vol 717 ◽  
pp. 134484 ◽  
Author(s):  
Juliana A. Galhardi ◽  
Bruno P. Leles ◽  
Jaime W.V. de Mello ◽  
Kevin J. Wilkinson
Keyword(s):  
Rare Earth ◽  
Trace Metals ◽  
Rare Earth Elements ◽  
Coal Mining ◽  
Tropical Soils ◽  
Mining Area ◽  
Coal Mining Area
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