湿地沉积物重金属环境化学行为研究进展

Environmentally Chemical Behaviors of Heavy Metals in Wetland Sediments: A Review

湿地沉积物重金属污染是当前环境科学领域的研究热点。本文在简要回顾国内外湿地沉积物中重金属污染研究成果的基础上,从湿地沉积物重金属来源、形态组成及提取方法、重金属在沉积物-水界面的迁移转化、质量基准以及风险评价等方面综述了当前国内外研究的最新进展,并提出了该领域未来可能的研究方向。认为针对湿地沉积物重金属向水体释放引起的二次污染问题,应重点对湿地沉积物重金属的环境化学行为展开深入研究,在研究方法和研究手段上应注重新技术的开发与应用。

Heavy metal pollution in wetland sediments is a hotspot of research in environmental science. The results obtained in the studies on heavy metal pollution in wetland sediments was briefly reviewed in this paper, the recent progress of study on the sources, speciation and extraction, migration and transformation, environmental criteria and risk assessment of heavy metals in the world were systematically summarized and the possible study trends in the future were also put forward. It suggests that in order to solve the problem of the secondary pollution induced by heavy metals released from wetland sediments to the water bodies, the research on the environmentally chemical behaviors of heavy metals in wetland sediments should be emphasized, and more attention should be paid to the development and application of advanced research methods and tools