大气降尘中重金属形态分析及生态风险评价

Speciation Analysis of Heavy Metal in Atmospheric Dust and Ecological Risk Assessment

总结国内外大气降尘重金属形态分析常用的两种方法——Tessier五步连续提取法和BCR连续提取法,用于土壤及沉积物中重金属生态风险评价,总结出适用于大气降尘重金属生态风险评价的方法——Hakanson潜在生态风险指数法和人工模拟酸雨淋溶法,提出了这些方法存在的问题和今后的发展方向。

The current two sequential extraction procedures about speciation of heavy metals in atmospheric dust,Tessier five-step method and BCR method are described,and the applied to the methods for ecological risk evaluation.The potential ecological risk indexes of Hakanson and the simulation of synthetic precipitation leaching procedure are suggested for the ecological risk assessment about heavy metal from atmospheric dust.It also refers to the problems about the current study and the future direction of development.