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目的 了解儿童血铅水平与胎儿期铅污染的关系。方法 采集 1～ 5岁儿童手指血和新生儿出生时的脐带血 ,用原子吸收石墨炉法测定血铅浓度。结果 112 2例儿童血铅平均为 (0 42± 0 15 ) μmol/L ,血铅值≥ 0 483μmol/L的儿童占 2 7 5 4% ;12 7例新生儿脐带血铅平均为 (0 16± 0 12 )μmol/L ,血铅值≥ 0 483μmol/L的新生儿占 0 79%。 结论 儿童血铅水平高主要是环境污染和生活行为引起 ,儿童在胎儿期血铅的本底水平已较高 ,所以预防儿童铅中毒应从孕妇做起
Objective To understand the relationship between blood lead level in children and lead pollution in fetus. Methods Finger blood from 1 to 5 years old children and umbilical cord blood from newborns were collected. Blood lead concentration was determined by atomic absorption graphite furnace method. Results 112 cases of children with blood lead average (0 42 ± 0 15) μmol / L, blood lead value of 0 483μmol / L of children accounted for 2 74.4%; cord blood lead of 12 7 newborns averaged (0 16 ± 0 12) μmol / L and 0 79% of newborns with blood lead level 0 483 μmol / L. Conclusion The high level of blood lead in children is mainly caused by environmental pollution and living behavior. The background level of blood lead in children is already high, so the prevention of childhood lead poisoning should start from pregnant women