广元市某煤矿扩建工程职业病危害控制效果评价

Evaluation on control effect of occupational hazards in a coal mine expansion project of Guangyuan City

目的了解广元市某煤矿在开采过程中存在的主要职业病危害因素,为制定职业病的预防措施提供依据。方法采用职业卫生学调查、工作场所职业病危害因素现场监测进行综合评价。结果该项目主要存在噪声、手传振动、不良作业条件、煤尘、矽尘、硫化氢、一氧化碳、二氧化碳、二氧化硫、氮氧化物等职业病危害因素。其中噪声、手传振动、煤尘、矽尘存在超标,其余各种有毒物质均符合国家标准限值。结论该项目职业病危害防护措施可行、有效,超标岗位应加强个体防护。

[ Objective ] To understand the main occupational hazard factors during the process of coal mining in a coal mine of Guangyuan City, provide a basis for developing the preventive measures against the occupational diseases. [ Methods ] The comprehensive evaluation was conducted by the occupational hygiene survey and occupation hazards monitoring in workplace. [ Results] The occupational hazard factors mainly included noise, hand-transmitted vibration, poor working conditions, coal dust, silica dust, hydrogen sulfide, carbon monoxide, carbon dioxide, sulfur dioxide and nitrogen oxides.. The levels of noise, hand- transmitted vibration, coal dust and silica dust exceeded the standard limits, and the levels of other toxic substances met the national standards. [ Conclusion] The protective measures against the potential occupational hazards are effective and feasible. The per- sonal protection in job posts with the over-standard occupational hazard factors should be strengthened.