论文部分内容阅读
目的了解辽宁省金矿开采企业职业危害现状,为有效控制和治理该行业的职业危害,降低职业病发病率提供科学依据。方法选择辽宁省13家金矿开采企业,进行粉尘、噪声及部分化学有害因素的检测和调研,用Fisher检验进行统计学分析,依据GBZ 2.1-2007和GBZ 2.2-2007进行结果评价。结果 13家企业的生产性粉尘中游离二氧化硅的含量为35.66%~76.43%,矽尘,总粉尘浓度超标率为46.15%,最高超过标准限值12倍。规模以上及规模以下企业、国有企业及非国有企业、不同工种的总尘超标率无统计学差异;噪声检测结果均超过国家标准;NO、NO2、CO的检测结果均未超过国家标准。结论该省金矿开采企业的主要职业病危害因素有矽尘和噪声,建议采用湿式作业及加强个体防护等综合防护措施加以治理,保护劳动者健康。
Objective To understand the status quo of occupational hazards in gold mining enterprises in Liaoning Province and to provide a scientific basis for the effective control and management of occupational hazards in the industry and the reduction of the incidence of occupational diseases. Methods Thirteen gold mining enterprises in Liaoning Province were selected to carry out the testing and investigation of dust, noise and some chemical harmful factors. The data were analyzed by Fisher’s test and the results were evaluated according to GBZ 2.1-2007 and GBZ 2.2-2007. Results The content of free silica in productive dust of the 13 enterprises was 35.66% -76.43%. The excessive concentration of silica dust and total dust was 46.15%, and the maximum exceeded 12 times of the standard limit. The above-scale and below-scale enterprises, state-owned enterprises and non-state-owned enterprises, different types of total dust exceeded the rate of no significant difference; noise test results are more than the national standard; NO, NO2, CO test results did not exceed the national standard. Conclusion The main occupational hazards of gold mining enterprises in this province are silica dust and noise. It is suggested that comprehensive protective measures such as wet work and individual protection should be taken to control and protect workers’ health.