摘要
目的对某石英砂有限公司粉尘治理措施进行评价,为控制职业病危害提供科学依据。方法采用职业卫生学调查,对工作场所治理前后矽尘总浓度、粉尘TWA、游离二氧化硅含量进行综合评价分析。结果 12个监测岗位,治理后的矽尘浓度均低于治理前(P<0.001),符合《工作场所有害因素职业接触限值》GBZ2.1-2007的要求[1]。结论除尘综合措施有效、可行,职业卫生评价合格。
Objective To evaluate the dust control measures implemented in a Quartz Sand Ltd., and to provide a scientific basis for control of occupational hazards. Methods With occupational hygiene survey, the total concentration of silica dust, dust TWA, and the content of free silica jn the workplace were comprehensively evaluated and analyzed before and after treatment. Results After the treatment, the silica dust concentrations in 12 detected dust positions were all lower than those of before treatment （P 〈 0. 001 ）, which all met the requirements of Occupational Exposure Limits for Hazardous Agents in the Workplace （GBZ2.1 - 2007）. Conclusions The comprehensive measures of dust control are effective and feasible. The evaluation of occupational health is qualified.
出处
《实用预防医学》
CAS
2010年第7期1320-1321,共2页
Practical Preventive Medicine
关键词
粉尘治理
效果评价
分析
Dust control
Effect evaluation
Analysis
