팔당호 표층 퇴적물에 함유된 중금속의 입도 의존성에 관한 연구
A Study on Grain Size Dependency of Selected Heavy Metals in the Surface Sediment of Lake Paldang
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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(r2) 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.
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(r2) 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.
참고문헌 (16)
- Frstner U, "Metals in sediments from the Elbe. Weser and Ems Estuaries and from the German Bight: grain size effects and chemical forms", Thalassia Jugosi, 12, pp.30~38 (1982)
- Sakai H, "Distribution of heavy metals in water and sieved sediment in the Toyohira River", Wat. Res, 20, pp.559~567 (1986)
- Bubb, J. M. T. Rudd, "Distribution of heavy metals in the River Tare and its associated broads. III", Lead and Zinc. Sci. Total Envir, 102, pp.189~208 (1990)
- Jun SH, "Forms and mobility of sediment phosphorus in Lake Soyang", Korean J. Limnol, 23(2), pp.139~140 (1990)
- Grant. A., "An assessment of metal contamination of sedimets in the Humber Estuary", U. K. Estuar. coast. Shelf Sci, 31, pp.71~85 (1990)
- Loring. D. H, "Manual for the geochemical analyses of marine sediments and suspended particulate matter", Earth-Sci. Rew, 32, pp.235~283 (1992)
- Windom H. L., "Contamination of the marine environment from land-based source", Mar. Poll. Bull, 25(4), pp.32~36 (1992)
- Daskalakis. K. D, "Normalization and elemental sediment contamination in the coastal United States", Envi. Sci. Technol, 29, pp.470~477 (1995)
- Lim HC, "A study on Grain-size Normalization of Acid Extractable Heavy Metal Contents in Soils"
- Jun SH, "A Study on Normalization of Heavy Metal Contents in Soils", Korean J. Soil Sci, 1996, pp.87~98 (1996)
- Kong DS., "Limnological and ecological studies of lake Paldang", pp.1992
- NIER, "Modeling water quality of Pal-Dang reservoir( II)", ~ (1989)
- Folk R. L, "Brazos River Bar, A Study in the Significance of Grain Size Parameter", J. Sed. Pet, 27, pp.3~27 (1957)
- Tessier A, "Sequential extraction prodedure for the speciation of particulate trace metals", Analytical Chemistry, 51, pp.844~851 (1979)
- Shepard F. P., "Nomenclature Based on Sand-Silt- Clay Ratios", J. Sed. Pet, 24, pp.151~158 (1954)
- Salomons W, "Heavy metals problems and solutions", pp.412~ (1994), Springer