Application of Singapore semi-quantitative assessment model in occupational health risk assessment of printing enterprises
Objective To explore the applicability of Singapore semi-quantitative assessment model to assess occupational health risk level of printing manufacturing enterprises.Methods The risk assessment of a printing enterprise in Dongguan City was carried out by Singapore semi-quantitative assessment model,and the results were verified with the field test and occupational hazard classification of China.Results The results of the Singapore semi-quantitative risk assessment showed that the hazard factor risk level of all positions in the exposure index method was level 2(low risk),which was generally higher than that in the actual concentration method.The concentration levels of isopropanol and 1.2-dichloroethane in the printing position,dichloromethane in the cleaning position,and toluene in the glue position were higher or even exceeded the standards.The risk levels of the hazard factors in the above positions in the actual concentration method were level 3(medium risk),level 4(high risk),level 4(high risk)and level 3(medium risk),which were higher than the assess-ment results of the exposure index method.The classifications of occupationalhazards at the workplace of the substances ex-ceeding the standardwere grade Ⅰ(mild harm)and grade Ⅱ(moderate hazard)for,while those of the others were grade 0(relatively harmless harm).Conclusion Singapore semi-quantitative assessment model can comprehensively determine the key risk factors of positions,so targeted prevention and control measures,such as anti-virus,can be put forward.
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