Objective To evaluate the control effect of occupational benzene hazard in an electric motor assembly plant.
Methods The self-comparison method was applied to analyze the change of the benzene concentrations in workplace air and of workers' health status before and after the inplementation of improvement measures.
Results After inplementation of improvement measures the eligible rate of benzene concentration in the workplaces increased from 12.5% to 100%, but there is a slight increase of noise in the workplaces. Leukopenia, anemia, and suspected occupational diseases were significantly decreased(P<0.01).
Conclusion The implementation of the integrated technical control measures could significantly reduce the hazards of workers exposure to benzene, and protect the health of workers. Nevertheless, we should pay attention to control the new occupational hazards.
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