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目的了解稳定剂生产过程中职业病危害因素种类及其暴露水平。方法采用职业卫生现场调查和检测的方法对某稳定剂生产过程中的职业病危害因素进行识别和检测。结果稳定剂生产过程中职业病危害因素主要有粉尘(含滑石粉、碳酸钙、氢氧化镁、氢氧化钙、硬脂酸锌、硬脂酸钙、二氧化硅)和噪声。经检测,作业工人接触粉尘(总粉尘、呼吸性粉尘)的时间加权平均浓度均符合职业接触限值的要求。但包装操作位呼尘的最大短时间接触浓度是呼吸性粉尘时间加权平均容许浓度的2.2倍,不符合超限倍数的要求。结论稳定剂生产过程中涉及粉尘类化学因素的职业病危害因素种类较多,现场操作工人未按照操作规程作业,导致部分点位粉尘浓度超标,企业应加强作业场所的职业卫生管理。
Objective To understand the types of occupational hazards and their levels of exposure during the production of stabilizers. Methods Occupational diseases in the production process of a stabilizer were identified and detected by occupational health field investigation and testing methods. Results The major hazards of occupational hazards in the production of stabilizer were dust (including talc, calcium carbonate, magnesium hydroxide, calcium hydroxide, zinc stearate, calcium stearate, silica) and noise. After testing, workers exposed to dust (total dust, respiratory dust) time-weighted average concentrations are in line with the requirements of occupational exposure limits. However, the maximum short-term contact concentration of dust in the packaging operation position is 2.2 times of the weighted average allowable concentration of respirable dust time, which does not meet the requirement of over limit multiple. Conclusion There are many types of occupational hazards that involve dust chemical factors in the process of production of stabilizers. There is a large number of occupational hazards in the process of production of stabilizers. Workers in the field are not operating in accordance with the operating procedures, resulting in the excessive concentration of dust at some spots. Enterprises should strengthen occupational health management in workplaces.