Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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A Study on Grain Size Dependency of Selected Heavy Metals in the Surface Sediment of Lake Paldang

팔당호 표층 퇴적물에 함유된 중금속의 입도 의존성에 관한 연구

  • Shin, Kyung-Yong (Department of Environmental Science, Kangwon National University) ;
  • Jun, Sang-Ho (Department of Environmental Science, Kangwon National University)
  • 신경용 (강원대학교 환경과학과) ;
  • 전상호 (강원대학교 환경과학과)
  • Received : 2012.08.29
  • Accepted : 2012.10.16
  • Published : 2012.10.31
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Abstract

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($r^2$) in the fractional content of particle size, from <256 ${\mu}m$ to <20 ${\mu}m$, and a decrease from <20 ${\mu}m$ to <1 ${\mu}m$. The normalized concentration of Cd and Cu by extrapolation at 50% <20 ${\mu}m$ 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.

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References

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