Analysis of the composition of heavy metal pollution in Japanese river sediments by principal component analysis.
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This report describes an application of principal component analysis to heavy metal contents (Cu, Cr, Zn, Pb, Cd, Ni), HNO<SUB>3</SUB>-H<SUB>2</SUB>O<SUB>2</SUB> soluble metals in the upstream sediments and 0.5 N HCl soluble ones in the downstream sediments. Two principal factors were extracted, and a comparison was made between the distribution of heavy metals on the plane produced by two factor loadings and that of rivers on the plane produced by two factor scores. <BR>Results show that the first factor represents the general pollution by heavy metals. The second factor in HNO<SUB>3</SUB>-H<SUB>2</SUB>O<SUB>2</SUB> soluble heavy metals in the upstream sediments represents an axis of siderophile-chalcophile element from the standpoint of geochemistry, while the second factor in 0.5 N HCl soluble heavy metals in the downstream sediments represents an axis of adsorbable-unadsorbable element in sediment from the standpoint of artificial heavy metal pollution.
- 日本陸水学会の論文
日本陸水学会 | 論文
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