铅是一种仅次于铁而被广泛应用的金属,其职业危害,以铅冶炼业为最大,蓄电池业居次。从事铅作业的人员中,慢性铅中毒甚为常见,但炼铁工人的职业性铅中毒,尚未见于报告。现将我所最近收治的6例患者分析报导如下: 现场情况某钢铁厂系年产××万吨的中型企业,所用铁矿石,基本上来自区内各地小型民矿。矿石中含铅量一般为0.3～0.5％,最高可达6％,平均为1％,并有少量砷、硫、磷、锌等夹杂物。历年来作业区空气中的铅蒸气浓度均超过国家规定的最高容许浓度0.03毫克/立方米。据1979年测定结果,Ⅰ号高 Lead is a second only to iron is widely used metal, its occupational hazards, lead smelting industry is the largest battery industry second. Chronic lead poisoning is a common occurrence among those engaged in lead work, but occupational lead poisoning by iron foundry workers has not yet been reported. Now I recently admitted 6 cases of patients reported as follows: On-site situation A steel mill is an annual output × × 10,000 tons of medium-sized enterprises, the use of iron ore, basically from all over the region small mines. Ore lead content is generally 0.3 to 0.5%, up to 6%, with an average of 1%, and a small amount of arsenic, sulfur, phosphorus, zinc and other inclusions. Over the years operating area air lead vapor concentrations exceed the maximum allowable concentration of 0.03 mg / cubic meter. According to the 1979 test results, Ⅰ high