Bioavailability and toxicity of heavy metals in a heavily polluted river, in PRD, China

被引:13
作者
Li, Feng [1 ,2 ]
Wen, Y. -M. [2 ]
Zhu, P. -T. [3 ]
机构
[1] Jiaying Coll, Res Inst Environm Engn, Meizhou 514015, Peoples R China
[2] Sun Yat sen Univ, Sch Environm Sci & Engn, Key Lab Environm Pollut & Remediat Technol Guangd, Guangzhou 510275, Guangdong, Peoples R China
[3] Peking Univ, Dept Environm Engn, Key Lab Water & Sediment Sci, Educ Minist, Beijing 100871, Peoples R China
关键词
AVS (acid volatile sulfide); SEM (simultaneously extracted metals); toxicity; heavily polluted river sediments;
D O I
10.1007/s00128-008-9386-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The research is designed to explore the SEM-AVS concept as a tool to assess bioavailability and toxicity of heavy metals in heavily polluted river sediments. The value of AVS and SEM is in a high level and only a few benthic invertebrate are found. Abundance of benthic invertebrate has significant correlation with SEM/AVS (r = -0.913, p < 0.01) and SEM-AVS (r = -0.725, p < 0.05). The analytical results of MDS (Non-matric Multi-dimentional Scaling) analysis indicate the benthic community structures of seven among nine stations where the Sigma SEM5-AVS < 0 are similar. The two facts indicate the SEM-AVS concept also is useful to heavily polluted river sediments.
引用
收藏
页码:90 / 94
页数:5
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