Comprehensive assessment of heavy metal pollution in river and lake sediments using face graph and index of geoaccumulation |
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作者姓名: | Liu Wenxin Tang Hongxiao Luan Zhaokun |
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作者单位: | Research Center for Eco-Environmental Sciences;Chinese Academy of Sciences;Beijing 100085;China,Research Center for Eco-Environmental Sciences;Chinese Academy of Sciences;Beijing 100085;China,Research Center for Eco-Environmental Sciences;Chinese Academy of Sciences;Beijing 100085;China |
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摘 要: | Surface sedimental samples were collected from(1)Le An River in Jiangxi Province, south of China,and(2)several lakes located in southwest of Germany.Concentrations of heavy metals in these samples were determined.Moreover,the situations of heavy metal pollution in two regions were comprehensively assessed by combined index of geoaccumulation with visualized multi- variate graphical method——modified Chernoff Face Graph.Face graphs intuitively demonstrated strong heavy metal contamination in Le An River,especially copper pollution.However,in lakes' sedimental samples,contamination of other heavy metals showed mild or clean except cadmium and chromium.
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关 键 词: | heavy metals sediment assessment index of geoaccumulation face graph. |
收稿时间: | 1995/11/15 0:00:00 |
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