摘要
对工业污染地中重金属Cd的分布及存在的化学形态进行了深入系统的研究。结果表明：此类污染土壤在中性条件下,可溶态(水溶态、交换态和有机态)Cd含量较低,分别为0．68%、12．7%和12．4%,不可溶态Cd(颗粒态)约为74．4%。而在偏酸性介质中,可溶态Cd含量较高,约为74．9%,具有明显的可迁移转化倾向。
A research for the distribution of Cd and chemical spcciafion in industrial polluted soil has been deeply and systematically studied. The result shows that the content of the soluble（water-soluble, exchangeable and organic） Cd is low, and separately is 0.68%,12.7% and 12.4%, unsoluble Cd（soil） is about 74.4% in the neutral condition in the polluted soil. While the content of soluble Cd is higher, and is about 74.9%. have the tendency of obvious migrate and transform, in the acidic condition.
出处
《环境科学与管理》
CAS
2006年第3期67-69,共3页
Environmental Science and Management
基金
国家自然科学基金项目(20271024)
关键词
土壤
镉
形态分析
soil
Cd
speciation analysis
