KMID : 1024519970060010033
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Journal of the Environmental Sciences 1997 Volume.6 No. 1 p.33 ~ p.44
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Statistical comparison of the analytical results of heavy metal contents in the riverside soil from the various methods of selecting sampling points
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Park Kwang-Jae
Moon Byung-Chul Song Hyun-Jung Jeong Jong-Hak Jeong Gi-Ho
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Abstract
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In investigating heavy metal contents at specific areas, the method of selecting sampling points is Important A general method is, according to the law , random sampling of zigzag-form in the selected field. In this work, we studied whether the measured values obtained from a certain method of selecting sampling points is a representative of heavy metal contents in the selected field or not. The selected field for this study is located on the lower Yangsan-river: Gasan-li, Mulgum-myon, Yangsan-gun, KyoungNam, 1 km away from the mi, h stream of Nakdong river. The heavy metals investigated were Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn. The inductively coupled plasma(ICPI atomic emission spectrometer was used to measure these metals quantitatively. The number of total sampling points were 24. We compared the total mean values with the mean obtained from various methods of selecting sampling points.
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KEYWORD
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heavy metal, statistical, treatment, selecting sampling points
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