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Sediment Quality Triad (SQT)
In aquatic toxicology, the Sediment Quality Triad (SQT) approach has been used as an assessment tool to evaluate the extent of sediment degradation resulting from contaminants released due to human activity present in aquatic environments (Chapman, 1990).〔(PM. 1990. The sediment quality triad approach to determining pollution-induced degradation. The Science of the Total Environment 97/98: 815-825. )〕 This evaluation focuses on three main components: 1.) sediment chemistry, 2.) sediment toxicity tests using aquatic organisms, and 3.) the field effects on the benthic organisms (Chapman, 1990).〔 Often used in risk assessment, the combination of three lines of evidence can lead to a comprehensive understanding of the possible effects to the aquatic community (Chapman, 1997).〔(PM et al. 1997. General guidelines for using the Sediment Quality Triad. Marine Pollution Bulletin 34(6): 368-372. )〕 Although the SQT approach does not provide a cause-and-effect relationship linking concentrations of individual chemicals to adverse biological effects, it does provide an assessment of sediment quality commonly used to explain sediment characteristics quantitatively. The information provided by each portion of the SQT is unique and complementary, and the combination of these portions is necessary because no single characteristic provides comprehensive information regarding a specific site (Chapman, 1997)〔
== Components ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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