A statistical approach for assessing heavy metal contamination in near‐shore marine sediment cores: a case study from the Yellow Sea, China
2011
Wang, Xue Song | Wang, Shu Jun | Zhu, Guang Chao | Mao, Ying Ming
The concentrations of 12 heavy metals (Cr, Co, Ni, Cu, Zn, Ga, Mo, Sn, Sb, Tl, Pb, Bi) in the marine near‐shore sediment cores of the Yellow Sea, China were investigated. Core A sediments had significantly lower concentrations of heavy metals than those of both Cores B and C according to the Bonferronic multiple comparison method. Based on multivariate statistic approaches (factor analysis and cluster analysis), two factors were identified controlling the heavy metal variability in the sediments. The enrichment factor (EF) and geo‐accumulation index (Igₑₒ) indicated Sb contamination from three sediment cores in this study area.
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