Vertical Profile of Heavy Metals Concentration in Core Sediments of Sungai Muar, Johor, Malaysia
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Middle-East Journal of Scientific Research
Abstract
Two core sediment samples were collected along Sungai Muar, Johor. The down core variation in
heavy metals concentrations (As, Cd, Cu, Pb, Zn, Hg) and sediment characteristic were determined by using
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Particle Size Analyzer, respectively. The result
shows the average concentration (ppm) of selected heavy metals in the S4 core followed the order Zn (54.05)
>Pb (16.33) > Cu (9.63) >As (3.43) > Cd (0.054) > Hg (0.031). For S5 core sediment, the average concentration
for Zn, Pb, Cu, As, Hg and Cd were 59.75, 23.77, 15.04, 3.57, 0.034 and 0.10, respectively. The EF result shows,
all the selected heavy metals from S4 and S5 core sediment were came from natural sources (EF<2). For index
of geoaccumulation (Igeo), the S4 and S5 core were unpolluted by Zn, Cu, Pb, Cd and Hg, whereas the Aswas
in uncontaminated to moderately contaminated status for both core. The average of pollution load values (PLI)
was concluded that S5 core was polluted by selected heavy metals, but not in S4. The result of sediment
characteristics shows average of mean size value for S4 core sediment was 7.58Ø and was higher than S5 cores,
6.73Ø.
Description
Keywords
Particle Size Analyzer, ICP-MS, Enrichment Factors, Index of Geoaccumulation, Sediment characteristics