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我分局开展矽肺普查是从一九七二年开始的,截至一九七七年十二月止,普、复查六次,共普查1979名从事粉尘作业的工人,查出各期矽肺患者26例,占受检人数1.31％,观察对象78例,占受检人数3.95％,现将普、复查结果总结如下。一、普查对象 1.风钻工、开挖工、工龄2年以上者; 2.隧道工、炮工、工龄5年以上者; 3.石工、桥梁工、线路工、采石工、工龄15年以上者;
My branch started a silicosis survey from 1972 onwards. As of December 1977, there were six general inspections and one review of 1979 workers engaged in dust operations. A total of 26 cases of silicosis patients were identified , Accounting for 1.31% of the number of subjects, 78 subjects observed, accounting for 3.95% of the number of subjects, now the general review results are summarized below. First, the object of the census 1. Wind workers, excavation workers, those who have worked for more than 2 years; 2. Tunnel workers, artillery workers, those who have worked for more than 5 years; 3. Those who are masons, bridge workers, road workers, quarry workers, Above