山东省某金矿工作场所中粉尘危害分析

Analysis of Dust Hazards in a Goldmine Making and Continuous Casting Workplace

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。

[ Objective] To identify the dust hazards in a gold mine of Shandong Province, to analyze its harmful degree, and search for critical control measures. [ Methods ] Field investigation and detection of occupational risk factors were applied. [ Results ] The monitoring results showed that the concentrations of respirable dust in the personal samplers ranged from 0. 14-3. 81 mg/m3 （ C-TWA}, and the exceeding rate was 50.0% ; The concentrations of respireable dust in the stationary samplers ranged from 0.33- 24. 58 mg/m3 （ C-STEL）, and the exceeding rate was 76.9%. [ Conclusion ] The posts of rock drilling, scraping, tipping tank, belt transportation are the key control points for dust. It is necessary to improve working environment and enhance individual protection.