In investigating heavy metal contents at specific areas, the method of selecting sampling points is important. A general method is, according to the law <Official Environmental Pollution Test Method>, random sampling of zigzag-form in the select...
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https://www.riss.kr/link?id=A19714208
1997
Korean
539.9
KCI등재
학술저널
33-44(12쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
In investigating heavy metal contents at specific areas, the method of selecting sampling points is important. A general method is, according to the law <Official Environmental Pollution Test Method>, random sampling of zigzag-form in the select...
In investigating heavy metal contents at specific areas, the method of selecting sampling points is important. A general method is, according to the law <Official Environmental Pollution Test Method>, 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 main stream of Nakdong river. The heavy metals investigated were Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn. The inductively coupled plasma(ICP) 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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역유동층 생물막 반응기에서 수리학적 충격에 따른 아파트 오수의 처리
내부순환반응기의 scale-up에 따른 동력학적 특성의 변화