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目的识别山东省某金矿的粉尘危害,分析其危害程度并寻找关键控制措施。方法进行现场职业卫生学调查和职业病危害因素检测。结果个体检测粉尘浓度范围为0.14～3.81 mg/m3[时间加权平均浓度(C-TWA),呼尘],超标率为50.0%;定点检测短时间接触浓度(C-STEL)范围为0.33～24.58 mg/m3(呼尘),超标率为76.9%。结论凿岩、铲运、翻罐、皮带输送岗位是粉尘的关键控制点,应改善作业环境,加强个人防护。
Aim To identify the hazards of dust in a gold mine in Shandong Province, analyze its harm degree and find out the key control measures. Methods To carry out on-site occupational hygiene investigation and detection of occupational hazards. Results The individual dust concentration ranged from 0.14 to 3.81 mg / m3 [time-weighted average concentration (C-TWA), dust exhaustion], and the exceeding standard rate was 50.0%. The C-STEL ranged from 0.33 to 24.58 mg / m3 (dust), exceeding the standard rate of 76.9%. Conclusions Drilling, shoveling, turning over and transporting belts are the key control points of dust. The working environment should be improved and the personal protection should be strengthened.