山东省某石膏矿职业病危害现状评价

Evaluation on present situation of occupational hazards in a gypsum mine in Shandong Province

目的确定山东省某石膏矿生产过程中的职业病危害因素,分析危害程度及对劳动者健康的影响,评价职业病防护设施和职业卫生管理措施的效果,提出相应的职业病控制措施。方法采用职业卫生检测法、职业卫生现场调查法、职业健康检查、职业病危害作业分级等方法收集数据和资料,结合调查结果,进行职业病危害现状评价。结果该石膏矿产生的职业病危害因素主要为粉尘和稳态噪声。工作场所中石膏粉尘的8 h时间加权平均浓度为：总尘0.3~29.3 mg/m3,岗位合格率88.9%;呼尘0.3~20.1 mg/m3,岗位合格率85.7%。工作场所中岗位8 h等效声级合格率为76.0%。一氧化碳、二氧化氮、二氧化硫、硫化氢均满足国家职业卫生接触限值要求。结论该石膏矿对生产工艺过程及生产环境中可能产生的职业病危害因素,分别采取了相应的防护措施,且防护结果基本达到相应的卫生要求。有比较完善的职业卫生管理制度和职业健康监护资料,职业卫生管理体系能有效地运行。

[Objective] To identify the occupational hazards in production process of a gypsum mine in Shandong Province,analyze the harmful degree and influence on workers＇ health,evaluate the effect of occupational protection facilities and occupational management measures,and put forward the relevant control measures. [Methods]Occupational health test,occupational health field investigation,occupational health examination,and occupational hazards classification were used to collect the data,and the present situation of occupational hazards were evaluated on the basis of the investigation results. [ Results] The main occupational hazards in this gypsum mine were dust and homeostatic noise. 8-hour concentration-time weighted average of gypsum dust in work places were as follows： the total dust was 0.3-29.3 mg/m3 with qualified rate of 88.9%,the respiratory dust was 0.3-20.1 mg/m3 with qualified rate of 85.7%. The qualified rate of 8-hour continuous equivalent sound level was 76.0%. The concentrations of carbon monoxide, nitrogen dioxide, sulfur dioxide, and hydrogen sulphide met the requirements of national occupational exposure limits.[Conclusion] Appropriate protection measures against the potential occupational hazards in production process and environment of the gypsum mine have been adopted,and the protection effect basically meets the hygiene requirements. This gypsum mine has a comprehensive occupational health management system and occupational health surveillance data,and the occupational health management system is operating effectively.