铅同位素示踪技术在重金属污染研究中的应用

Applications of Pb isotope tracing techniques to heavy metal contamination

重金属通过在生态环境和生物中的迁移、转化和富集已对环境质量和人类健康构成了严重威胁。概述了重金属元素在地表环境中的迁移方式和在土壤-植物系统中的聚积形态,以及重金属污染治理的研究现状。针对以往研究工作的不足和在研项目特点,重点提出了土壤和茶叶中铅同位素组成的测试技术,综述了铅同位素示踪技术在重金属污染研究中的应用,并指出了今后研究重金属污染的重点。

Heavy metals have threatened heavily to environments and human health through transporting and accumulating in ecological environment and biology. The transportation ways in earth′s surface and accumulation states in the soil-plant economy of poisonous heavy metals as well as the present situation of treating heavy metal contamination are described. It is also proposed that how to measure the Pb isotopic compositions in soils and teas. Moreover, applications of the Pb isotopic trace technique are synthesized. Finally, the key points of studying heavy metal contamination are prospected.