重庆市区新生儿及其生母血铅测定及影响因素调查

Measurement of blood lead levels in newborns and their mothers

目的 测定新生儿脐血铅及其生母血铅 ,探讨其间关系及影响因素。方法 采用非火焰原子吸收法测定全血铅含量。用自定的调查表调查并记录孕妇年龄、职业等相关因素并进行相关性分析。结果 新生儿脐血铅水平为 1 0 3 45± 3 8 69μg/L ,明显高于其母血铅水平 87 98± 3 7 71 μg/L ,且与其母血铅水平呈显著正相关 (P <0 0 1 )。新生儿脐血铅 >1 0 0 μg/L者占53 76% (50 /93 )。母亲年龄、孕期健康状况是新生儿血铅水平的主要影响因素。结论 本组新生儿铅中毒比例已相当高 ,预防儿童铅中毒应从其母孕期乃至孕前就应开始。治理环境铅污染已刻不容缓。

Objective To determine the blood lead levels in newborns and their mothers to investigate the relationship between them and the factors influencing them.Methods Non flame atom absorptance was used to determine the blood lead levels.The related factors such as age, vocation of pregnant women were studied,recorded and analyzed by the investigating table by us.ResultsLead levels(Lls) were remmarkably higher in the umbilical cord blood(103.45±38.69μg/L)than in maternal blood(87.98±37.71μg/L),and there was significantly positive relationship( P <0 01) between them.The rate of Lls in umbilical cord blood which were more than 100μg/L was 53.76%(50/93). Both age and health conditions of pregnant women were the important factors affecting Lls level in newborn's blood.Conclusion Morbidity of lead poisoning of newborns in these subjects was very serious so that environmental pollution should be controlled as early as possible.Lead poisoning prevention in children should be started before and during the pregnancy of their mothers.