Assessment of Elemental Pollution in Marine Sediment from Talang-Satang and Bako National Park of Sarawak, Malaysia(Special Issue>Malaysian Nuclear Agency)

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The assessments of elemental pollution in sediment collected from national park of Sarawak were done based on their distribution pattern, geoaccumulation index and enrichment factor. The enrichment factors (EF) were determined by the elemental rationing method, whilst the geoaccumulation index (I_<geo>) by comparing of current concentration to background concentration of metals. The elements were analyzed by using Instrumental Neutron Activation Analysis (INAA). The results of enrichment factor show that Talang-Satang and Bako National Park have significant contaminated by toxic elements such as As, Cr, Sb, Ti and U. Base on the classification system proposed for sediment quality with referring to I_<geo>, the sediment quality of the Talang-Satang and Bako National Park for Arsenic (As) contamination can be categorized as moderate to extremely contaminated. Contamination of element such as Cr, Sb and Ti can be categorized as uncontaminated to moderate contaminated, and U can be categorized as uncontaminated to moderate and strong contaminated. The average concentration of As in sediment of Bako shown surpassed sediment quality guideline (probable effect concentration - PEC) value, whilst Cr concentration in sediment of Talang-Satang shown above midpoint effect concentration (MEC). This indicating, the sediment of Bako and Talang-Satang could have a potential for producing chronic effect to the marine biota or benthic organism.
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Assessment of Elemental Pollution in Marine Sediment from Talang-Satang and Bako National Park of Sarawak, Malaysia(Special Issue>Malaysian Nuclear Agency)

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