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对贵铁分局几个较大的铁路地区的幼儿园环境和园内大班的幼儿进行采样测定 ,探讨了环境铅对所选的发样中微量元素指标的影响 ,并探讨了本地区儿童发中各元素的正常值的可能范围 ,并针对发现情况进行分析
The Kindergarten Environment and the preschool infant children in several large railroad areas of Guigui Branch were sampled to determine the influence of environmental lead on the trace elements in selected hair samples. The possible range of normal values for the element and the analysis of the findings