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为阐明现代化露天煤矿的职业卫生问题,对平朔露天矿进行了作业环境的卫生学调查。结果表明,粉尘浓度2.2~116.1mg/m3,样品超标率89.4%,危害以岩尘为主,煤尘次之;运输车辆驾驶室的等效连续A声级超过国家卫生标准,车间噪声样品超标率为67.7%。可见,虽然该矿进口的成套设备机械化程度很高,但采、选生产过程的粉尘、噪声污染仍十分严重。
In order to clarify the occupational health problems of the modern open-cast coal mines, a hygiene survey of working environment was conducted on Pingshuo open-pit mine. The results showed that the concentration of dust was 2.2 ~ 116.1mg / m3, and the over-standard rate of samples was 89.4%, the main hazard was rock dust, followed by coal dust; the equivalent continuous A-sound level of cab of transport vehicles exceeded the national sanitary standards , Workshop noise samples exceeded the standard rate of 67.7%. Visible, although the mine imported equipment is very high degree of mechanization, but mining, the election of the production process of dust, noise pollution is still very serious.