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A Study on Grain Size Dependency of Selected Heavy Metals in the Surface Sediment of Lake Paldang
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 Title & Authors
A Study on Grain Size Dependency of Selected Heavy Metals in the Surface Sediment of Lake Paldang
Shin, Kyung-Yong; Jun, Sang-Ho;
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Objective: The purpose of this study was to present the standard deviation of the elemental normalization of concentration of selected heavy metals in the surface sediment of Lake Paldang. Methods: Grain size dependency of selected heavy metal concentrations in the surface sediments of Lake Paldang was analyzed by the extrapolation method. The heavy metal concentrations were the sum of all fractions. Results: Cd and Cu showed an increase of the coefficient of determination() in the fractional content of particle size, from <256 to <20 , and a decrease from <20 to <1 . The normalized concentration of Cd and Cu by extrapolation at 50% <20 were 0.8 mg/kg, 37.0 mg/kg, 57.6 mg/kg and 201.7 mg/kg respectively. Conclusions: The normalized concentrations in the sediment of Lake Paldang are 1.5-2.0 times higher than mean average concentration. We concluded that in interpretation of heavy metal concentration in the sediment of Lake Paldang, normalization of grain size dependency should be considered.
grain size dependency;heavy metal;lake paldang;surface sediment;
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