期刊
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
卷 81, 期 1, 页码 90-94出版社
SPRINGER
DOI: 10.1007/s00128-008-9386-9
关键词
AVS (acid volatile sulfide); SEM (simultaneously extracted metals); toxicity; heavily polluted river sediments
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.
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