Analysis on Pure Tone Audiometry of Workers Exposed to Noise in A Civil Airport

[Objective]To investigate the effect of noise on workers with occupational exposure.[Methods]The noise intensity was measured in noise exposed workshops,808 noise exposed workers were tested in terms of the pure tone audibility threshold,and the statistical analysis was carried out to identify the correlation between hearing loss and service length/ type of work.[Results]There was the largest number of workers who suffered from hearing loss of 4 000 Hz high frequency audibility threshold;The hearing loss detected rate rose along with the increase of service length,The hearing loss was significantly different between groups with different service length(P0.01).The hearing loss was not significantly different between worker of different type of work(P0.05).[Conclusion]The noise exposed workers' high frequency audibility threshold is evidently influenced by the noise exposed working conditions.The hearing loss detected rate rises along with the increase of noise exposed length.It is recommended to strengthen self-protection and establish a health monitoring and protection record to avoid hearing loss induced by occupational noise.