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Pollution Assessment of Various Heavy Metals in the Surface Sediment of Kendari Bay, Indonesia


Affiliations
1 Department of Chemistry, Halu Oleo University, Anduonohu Kendari 93232, Indonesia
2 Department of Physics and Earth Sciences, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
3 Department of Mathematics, Halu Oleo University, Anduonohu Kendari 93232, Indonesia
 

The concentration and pollution level of heavy metals in the surface sediments of Kendari Bay, Indonesia were measured. Sediments samples from 25 sites, ranging from the inshore (Wanggu River) to the offshore regions of the bay, were analysed for metal concentrations (i.e., Mn, Fe, Co, Ni, Cu and Zn), sediment type and TOC. The results demonstrate that the heavy metal Fe had the highest concentrations (1100 to 29800 μg/g) followed by Mn (34.39 to 399.59 μg/g), Zn (2.58 to 129.70 μg/g), Ni (1.14 to 15.34 μg/g), Cu (0.6 to 15.81 μg/g), and Co (0.24 to 7.33 μg/g). Moreover, results of both Pearson correlation analysis and PCA suggest the similar distinctiveness of Fe, Co and Ni in 25 sampling sites. The measurement results of index of geoaccumulation (Igeo) suggest that the Kendari Bay surface sediment is considered an unpolluted area for each of the heavy metals investigated in this study.

Keywords

Heavy Metals, Index of Geoaccumulation, Kendari Bay, Pollution Assessment.
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  • Pollution Assessment of Various Heavy Metals in the Surface Sediment of Kendari Bay, Indonesia

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Authors

Alrum Armid
Department of Chemistry, Halu Oleo University, Anduonohu Kendari 93232, Indonesia
Ryuichi Shinjo
Department of Physics and Earth Sciences, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
Siti Hadijah Sabarwati
Department of Chemistry, Halu Oleo University, Anduonohu Kendari 93232, Indonesia
Ruslan Ruslan
Department of Mathematics, Halu Oleo University, Anduonohu Kendari 93232, Indonesia

Abstract


The concentration and pollution level of heavy metals in the surface sediments of Kendari Bay, Indonesia were measured. Sediments samples from 25 sites, ranging from the inshore (Wanggu River) to the offshore regions of the bay, were analysed for metal concentrations (i.e., Mn, Fe, Co, Ni, Cu and Zn), sediment type and TOC. The results demonstrate that the heavy metal Fe had the highest concentrations (1100 to 29800 μg/g) followed by Mn (34.39 to 399.59 μg/g), Zn (2.58 to 129.70 μg/g), Ni (1.14 to 15.34 μg/g), Cu (0.6 to 15.81 μg/g), and Co (0.24 to 7.33 μg/g). Moreover, results of both Pearson correlation analysis and PCA suggest the similar distinctiveness of Fe, Co and Ni in 25 sampling sites. The measurement results of index of geoaccumulation (Igeo) suggest that the Kendari Bay surface sediment is considered an unpolluted area for each of the heavy metals investigated in this study.

Keywords


Heavy Metals, Index of Geoaccumulation, Kendari Bay, Pollution Assessment.