河流沉积物重金属污染质量控制基准的研究Ⅰ.C-B-T质量三合一方法(Triad)

在综合数据库ＣＥＲＰＤＢＭＳ支持下，利用水体沉积物质量三合一工具（Ｔｒｉａｄ），初步建立江西乐安江表层沉积物中重金属污染的质量控制基准（ＳＱＣ）．通过将化学分析（Ｃ）、毒性鉴定（Ｔ）和底栖群落结构变化（Ｂ）三基元集成为一体的三轴图和相应的响应信息判断矩阵，基于现场生物响应的沉积物质量基准能较为清晰地指示乐安江流域表层沉积物中重金属污染的相对程度和分布模式，体现底栖生物对沉积物重金属污染的剂量响应关系，为进一步制订该区域沉积质量管理标准（ＳＱＳ）、开展后续的污染治理与恢复工程提供技术保证和科学依据．

Sediment quality criteria for heavy metal pollution in the Lean River Ⅰ. Sediment quality triad approach

By the aid of a comprehensive database, regional sediment quality criteria(SQC) for heavy metal pollution along the Lean River were established with an integrative approach triad. Chemical analysis(C) and toxic tests(T) were combined with benthic macro invertebrates community structure alternations(B). Based on tri axial graphs together with relevant matrix of decision making, the initial bio responsive sediment quality criteria clearly indicated the situation of heavy metal pollution, and showed the dose response relationships between heavy metal contamination and benthic biotics. Moreover, the SQC may provide some basic material for establishment of sediment quality standards(SQS) and for follow up remediation engineering in the area.