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目的分析恒源煤电公司和刘桥一矿2个矿井的综合防尘效果与工人尘肺发病情况,为制定预防措施提供依据。方法采用回顾性方法对1963年至2005年2矿历年所有接尘工人数和1963年1月至2005年12月2矿所有确诊尘肺病人数及2矿粉尘监测情况进行分析。结果2矿粉尘浓度差异具有显著性(P<0.05),粉尘分散度和游离二氧化硅含量差异无显著性(P>0.05),各年代恒源公司尘肺病人检出率均低于刘一矿,2矿差异具有显著性(P<0.05),Ⅰ期尘肺平均发病工龄恒源公司比刘一矿长,2矿差异具有显著性(P<0.05);1970年前各接尘年代的工人2矿尘肺病人检出率均无明显下降趋势,平均发病工龄亦无明显延长趋势。结论加强综合防治措施,加强工人自我防护意识,是控制尘肺发病的工作重点。
Objective To analyze the integrated effect of dust prevention and pneumoconiosis in two mines of Hengyuan Coal and Electricity Company and Liuqiao First Mine and provide the basis for preventive measures. Methods The retrospective method was used to analyze the numbers of all dust-pick workers in 2 mines from 1963 to 2005 and the number of all pneumoconiosis patients in mines of No. 2 from January 1963 to December 2005 and the monitoring of dust mines in No. 2 mines. Results There was a significant difference in dust concentration between the two mines (P <0.05), but there was no significant difference in dust dispersity and free silica content (P> 0.05). The detection rates of pneumoconiosis patients in Hengyuan were lower than those in Liuyi Mine (P <0.05). The mean age of onset of pneumoconiosis in stage I was significantly higher than that of Liuyi Mine and 2 mines (P <0.05). Before 1970, workers in each dust-contacting age group 2 The detection rate of pneumoconiosis patients showed no obvious downward trend, the average length of service also had no significant extension trend. Conclusion Strengthening comprehensive prevention and control measures and strengthening workers’ awareness of self-protection are priorities for controlling the incidence of pneumoconiosis.