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Mar Pollut Bull ; 84(1-2): 373-8, 2014 Jul 15.
Article in English | MEDLINE | ID: mdl-24880681

ABSTRACT

The surficial coastal sediments in Kendari Bay are sampled in the field to determine the concentration and pollution level of three heavy metals (Pb, Cd and Cr). Twenty-five sampling points ranging from the inner (Wanggu River) to the outer area of the bay have been chosen. The physicochemical properties, such as temperature, pH, salinity and TDS of the overlying water, as well as the sediment type and TOC of the surficial sediments, are also measured. The total concentrations of the Pb, Cd and Cr in the sediment samples are quantified using inductively-coupled plasma mass spectrometry (ICP-MS). The concentrations of the heavy metals (Pb, Cd and Cr) ranged from 0.84 to 17.02 µg/g, 0.02 to 0.17 µg/g and 1.92 to 40.11 µg/g (dry weight), respectively, following the Cr>Pb>Cd sequence. To assess the degree of contamination, a geoaccumulation index (Igeo) is measured. Kendari Bay is not a contaminated area regarding Pb, Cd and Cr.


Subject(s)
Bays , Environmental Monitoring/methods , Geologic Sediments/chemistry , Metals, Heavy/chemistry , Water Pollutants, Chemical/chemistry , Rivers/chemistry
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