摘要
为探讨学龄儿童血铅与智商及学习成绩关系，选择广州市无铅污染源的某郊区４所小学共３３１名７～１１岁儿童进行血铅、智力和学习成绩调查及其相关研究。结果表明，儿童血铅范围０．３４～２．３５μＭ／Ｌ，平均水平０．７８μＭ／Ｌ，无性别差异。按不同智商等级、不同学业成绩与血铅作相关分析，结果智商、学习成绩与血铅未见明显相关。但儿童智力与学习成绩仍有随血铅增高而呈下降趋势。对部分儿童智力用两种测验方法进行了对比研究，其结果有良好相关性。
To explore the relationship between the blood lead level and intelligence quotient(IQ),academic achievement among the children,the investigation was carried out in 331 children at ages of 7￣11 years old selected from 4 primary schools locating in the areas without pollution resources in Guangzhou suburbs.The results showed that the range of the blood lead level for children was 0.34￣2.35 μM/L and mean was 0.78μM/L and there was no significant difference between boys and girls.A multiple regression analysis about those three indexes was made according to their different levels.No significant correllation betwwen the blood lead level and IQ for children as well as the academic achievement was observed.However the tendency that the IQ and the academic achievement decreased with the increase of the blood lead level for children also existed.Some children's IQ were tested by R.SPM and WISC R,the perfect correllation between the two results was observed also.
出处
《环境与健康杂志》
CAS
CSSCI
CSCD
北大核心
1997年第3期113-115,共3页
Journal of Environment and Health
基金
中华医学基金
