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目的了解安康市粉尘危害情况,进一步治理粉尘污染。方法对全市接触矽尘、煤尘等无机粉尘1年以上的3859名作业工人,按照尘肺病检查内容、程序和GBZ 70-2002尘肺诊断标准进行尘肺病检查、诊断,并对生产环境进行劳动卫生学调查及粉尘浓度、分散度、二氧化硅(SiO2)含量测定。结果粉尘浓度平均86.63 mg/m3,游离SiO2含量32.17%;尘肺患病率为11.04%;发病工龄最长35年;最短11个月,平均19.58年。结论尘肺患病率、发病工龄、尘肺病进展均与粉尘浓度及游离S iO2含量高有关。
Objective To understand the hazardous situation of dust in Ankang City and further control the dust pollution. Methods 3859 workers who exposed to inorganic dust such as silica dust and coal dust for more than one year in the city were examined and diagnosed according to the contents and procedures of pneumoconiosis examination and the pneumoconiosis diagnostic criteria of GBZ 70-2002, Study and dust concentration, dispersion, determination of silica (SiO2) content. Results The average dust concentration was 86.63 mg / m3. The content of free SiO2 was 32.17%. The prevalence of pneumoconiosis was 11.04%. The longest service was 35 years. The shortest was 11 months, with an average of 19.58 years. Conclusion The prevalence of pneumoconiosis, the length of service and the progress of pneumoconiosis are all related to the concentration of dust and the high content of free S iO2.