不同区域儿童血铅浓度及铅危害的防治

Concentration of Pb in Serum of Children in Different Regions and Prevention from Harmfulness of Pb

实验选择了生活在杭州市区5－6岁学龄前儿童120名．男女各半，并选择了生活在杭州近郊海宁市农村同龄儿重100名为观察对照组，进行了血铅含量的测试。结果显示，生活在杭州市中心的儿童受到铅污染的危害程度比生活在农村的儿童较为严重。以目前公认推荐血铅可接受上限值0．483μmol/L计算，杭州市有49．1％、而海宁农村有31．9％的儿童血铅浓度超过允许标准。儿童的严重铅危害，应引起人们高度重视。

120 children aged 1 ~ 6 from urban district of Hangzhou city and 100 children at the same age from the countly of district of Haining city were determined of serum Pb. The results showed that the Pb exposure of children living in the centre of Hangzhou urban district was more serious than that of children living in the country. There were 49.5 % children in Hangzhou city whose serum Pb value exceeded 0.483 μmol/L, the accepted upper limit, while 30.4% in the rural area of Haining city.