2019年贺州市碳酸钙加工行业粉尘监测结果评估分析

  目的  了解贺州市碳酸钙加工行业粉尘危害情况，为制定职业病防治策略、保障从业工人健康、促进行业清洁生产提供科学依据。
  方法  按照《2019年广西工作场所职业病危害因素监测工作方案》的要求，开展贺州市碳酸钙加工企业粉尘现场调查及职业病危害因素检测，进行粉尘危害作业分级，并对监测结果进行统计学分析。
  结果  2019年贺州市共监测碳酸钙加工企业73家，小微企业共占95.9%；企业职业健康检查开展率为68.5%、人员体检率为70.5%；企业检测超标率为47.9%，岗位超标率为26.7%。粉尘危害作业0级占52.1%、Ⅰ级占34.2%、Ⅱ级占13.7%，岗石生产、有限责任公司、防护设施不完善企业存在Ⅱ级中度危害作业的比例较高，差异有统计学意义（P < 0.05）。
  结论  贺州市碳酸钙加工行业粉尘检测结果超标率较高，总体危害控制水平一般，需注意矽尘危害，并应完善防尘设施设备，降低作业工人实际接触粉尘水平。

Analysis of dust monitoring results in calcium carbonate processing industry in Hezhou City in 2019

  Objective  To understand the dust hazards in the calcium carbonate processing industry in Hezhou City, and to provide a scientific basis for formulating occupational disease prevention strategies, ensuring the health of workers, and promoting cleaner production in the industry.  Methods  In accordance with the requirements of the "Working plan for occupational hazard factors monitoring in Guangxi workplaces in 2019", on-site surveys and measurement of occupational hazards in calcium carbonate processing enterprises were carried out in Hezhou City.  Results  In 2019, a total of 73 calcium carbonate processing enterprises were surveyed, among whom most were small and micro enterprises; 68.5% enterprises organized the medical examinations and 70.5% workers received medical examinations. The level of occupational hazards in 47.9% enterprises was higher than national standards and the level of occupational hazards at 26.7% worksites was higher than standards. The classification of dust hazards at various workplaces were ranked as level 0 (52.1%), level Ⅰ (34.2%), and level Ⅱ (13.7%). The proportion of level Ⅱ (medium hazard) was high in granite production, in the limited liability companies or in the enterprises without suitable protection facilities(P < 0.05).  Conclusion  The dust hazard in calcium carbonate processing industry in Hezhou City was high and the overall control of hazard was not satisfied. Attention should be paid to silicon dust hazards, and suitable protection facilities should be adopted to reduce workers' actual exposure level.