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Acceptable Daily Intake and Agricultural Safety Evaluation of Rare Earth Elements
Author(s): 
Pages: 1-7
Year: Issue:  5
Journal: GUANGDONG TRACE ELEMENTS SCIENCE

Keyword:  稀土元素膳食摄入量日允许摄入量安全性;
Abstract: 稀土农用是我国独立开创的稀土应用领域,30年来,取得了巨大的经济效益.然而,作为元素周期表中第ⅢB主族的重金属,稀土元素不是动植物的必需微量元素,其生理效应的机制还不清楚,稀土农用的安全性问题一直受到密切的关注.本文从稀土元素分析方法与人均总膳食摄入量、稀土元素毒理实验方法与日允许摄入量、稀土农用对土壤中稀土元素含量和化学形态的影响、以及稀土农用对食物中稀土元素含量影响的4个方面,对文献报道作了分析、整理和评定,结论是只要对使用的范围、剂量及施用方式进行限制,稀土农用是一种安全的农业增产方式.
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