Application of 3 methods on occupational health risk assessment of methyl isoamyl ketone / 中国职业医学

ABSTRACT

OBJECTIVE: To compare the occupational health risk assessment results of 3 risk assessment methods in workers exposed to methyl isoamyl ketone(MIAK). METHODS: A rubber antiaging agent manufacturer and its workers in Shandong Province were selected as study subjects. An on-site occupational health survey was conducted and MIAK levels in workplace detected. We chose Romania occupational accidents and occupational disease risk assessment method(hereinafter referred to as “the qualitative assessment method”), Singapore harmful chemicals contact ratio method occupational exposure to risk assessment(hereinafter referred to as the “half-quantitative assessment method”) and the occupational hazards risk index method to conduct occupational health risk assessment for MIAK exposure in workers in the enterprise, and use risk ratio method to compare the results of the 3 different risk assessment methods at the same time. RESULTS: All the results of qualitative assessment method on the risk grade of inspectors, dose inspectors, recovery inspectors in the production workshop, laboratory analysts and warehouse keepers were grade 2. The results of semi-quantitative assessment method on the risk ratio of inspectors, dose inspectors, recovery inspectors in the production workshop were grade 2, while the risk ratios of laboratory analysts and warehouse keepers were grade 1. The assessment result of occupational hazard risk index method on the risk level of inspectors in the production workshop was grade 4, and the assessment results of dose inspectors, recovery inspectors in the production workshop, laboratory analysts and warehouse keepers were grade 3.CONCLUSION: Compared with the qualitative assessment method and the semi-quantitative assessment method, the occupational hazard risk index method has a higher risk ratio of occupational health risk of MIAK and the assessment results were relatively more comprehensive, reasonable and objective.