Characteristics of noise hazard in an automobile manufacturing enterprise of Guangzhou City

[Objective]To understand the degree of noise hazard in the automobile manufacturing enterprise,analyze the influence of noise on workers' health,and discuss the factors which influence the intensity of the noise. [Methods]By using the repeated cross-sectional survey,the results of the noise intensity monitoring and the data of occupational health examination of noise-exposed workers in an automobile manufacturing enterprise from 2008-2012 were analyzed. [Results]There was significant difference in noise intensity among different types of work( F = 10. 098,P 0. 01). The abnormal rate of audiometry in punching workers was the highest( 9. 8%). The difference in the abnormal rate of audiometry between workers exposed to noise and workers exposed to poison combined with noise was not significant( P 0. 05).[Conclusion]The noise intensity in the workshop is related not only to equipments and processes,but also to the layout of production posts. The harm of occupational hazard factors to the human body has cumulative and delayed characteristics.