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浙江省乡镇企业的手纺石棉加工,以一家一户为主,在农村广为接触,人数达十余万之多,时间长达二十余年。我们为了了解手纺石棉工人的胸片的改变,选择了1,886名女性手纺石棉工人的胸片进行x线分析。 现场情况 我省手纺石棉加工,最早从1958年开始,以手工操作为主,防尘设备几乎没有。原料主要来自四川石棉矿,系短纤维温石棉,工种为:轧花、原料处理、拌和、纺线、拼线、梳棉、织布等。粉尘浓度经我们测定轧花作业最高,平均55.5mg/m~3,纺线作业最低,平均6.45mg/m~3,拼线作业11.14mg/m~3。粉尘分
Zhejiang Province, the township enterprises hand-spinning asbestos processing, mainly to one family, extensive contact in rural areas, the number of more than ten million as many as 20 years. In order to understand the changes in chest radiographs for asbestos asbestos workers, we selected the x-ray analysis of the chest of 1,886 women aspirated asbestos workers. Scenario I province hand-spinning asbestos processing, as early as 1958, mainly to manual operation, almost no dust-proof equipment. Raw materials mainly come from Sichuan asbestos mine, Department of short fiber chrysotile, types of work: ginning, raw material processing, mixing, spinning, fight line, carding, weaving and so on. The highest concentration of dust was determined by our ginning operation, with an average of 55.5mg / m ~ 3, the lowest spinning operation, with an average of 6.45mg / m ~ 3 and a fusing job of 11.14mg / m3. Dust points