摘要
目的 :了解银川市区学龄儿童血铅水平现状 ,探讨其与智商及学习成绩的关系。方法 :选择银川市无铅污染源的老城区 3所小学共 32 4名 7～ 12岁儿童进行血铅水平测定和智力、学习成绩调查。结果 :儿童血铅水平范围 0 19～1 0 0 μmol/L ,无性别差异。血铅值 >0 483μmol/L的比例为 6 3 %。不同血铅水平与智商及学习成绩未见明显相关。 结论 :在本研究的铅暴露范围内 ,铅对儿童智力的影响不明显 。
Objective:To estimate blood lead level and to explore the relationship between blood lead level and intelligent Quotient(IO),academic learning records among the children aged 7-12 years in Yinchuan.Methods:the blood lead level,intelligence and academic achievement of 324 children in three primary schools located at non-lead-polluted areas in Yinchuan were estimated chemically or by using surveying scale table of intelligence respectively.Results:the range of blood lead level for children was 0.19-1.00μmol/L,median 0.56 μmol/L and showed no significant difference between boys and girls,and the blood lead in 198(63%) children were higher than 0.483 μmol/L.No significant correllation between the blood lead level and academic intelligence was found.Conclusion:The adverse effects induced possibly by high lead level in blood on intelligence is not prominent,implying that other factors which antagonize the hazardous action of blood lead on nerve cells might be actively involved in the detailed mechanism.
出处
《宁夏医学院学报》
2001年第3期171-172,175,共3页
Journal of Ningxia Medical College
基金
宁夏自治区教委资助项目
