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贵州某县土法炼锌业发达，但由于系敞开式作业，且无防治措施，故铅污染十分严重，对当地儿童的健康已造成了严重的危害。现将调查结果报告如下。1材料和方法1．1．调查对象以某县土法炼锌业较为发达和集中的P镇的2所小学（P1和P2）作为观察组；P1距土法炼锌炉群较近（约100m）
Due to the well-developed zinc smelting industry in a certain county in Guizhou Province, due to its open operation and lack of prevention and control measures, lead pollution is very serious and has caused serious harm to the health of local children. The survey results are reported below. 1 Materials and methods 1.1. The surveyed subjects included two primary schools (P1 and P2) in the P town where the indigenous zinc refining industry was more developed and concentrated in a county as the observation group. The P1 was closer to the zinc furnace group (about 100 m)