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目的识别、检测某凹版软包装印刷厂的职业病危害因素,分析工程整改后职业病危害的变化,评估工程整改效果,为企业和监管部门提供科学依据。方法通过现场卫生学调查和现场检测,得出整改前后作业场所职业病危害因素浓度或强度,评价有针对性的系统工程整改对作业场所职业病危害污染的改善效果。结果整改前该厂作业工人接触的有毒化学物质超标较重,苯CTWA超标3.42倍,CSTEL超标1.87倍;乙酸乙酯CTWA超标1.33倍,CSTEL超标1.48倍。整改后上述有毒化学物浓度明显降低,达到职业接触限值要求;整改后噪声强度有所降低。结论有毒化学物质超标的印刷厂,经系统工程整改后,企业生产过程中产生的职业病危害因素得到有效预防和控制。
Objective To identify and detect occupational hazards of a gravure flexible packaging printing factory, analyze the changes of occupational hazards after the rectification of the project, and evaluate the rectification effect of the project so as to provide a scientific basis for the enterprises and regulatory authorities. Methods The concentration or intensity of occupational hazard factors in workplaces before and after rectification was obtained through on-site hygiene investigation and on-site testing, and the improvement effect of systematic engineering rectification on occupational hazards in workplaces was evaluated. Results Before the rectification, the workers in this plant contacted the toxic chemicals exceeding the standard. The benzene CTWA exceeded the standard by 3.42 times and the CSTEL exceeded the standard by 1.87 times. The ethyl acetate CTWA exceeded the standard by 1.33 times and the CSTEL exceeded the standard by 1.48 times. After the rectification, the concentrations of the above toxic chemicals were significantly reduced and reached the requirements of occupational exposure limits. The noise intensity after the rectification was reduced. Conclusion In the case of printing factories with excessive toxic chemical substances, the occupational hazards generated in the production process of the enterprise are effectively prevented and controlled after being systematically rectified.