某民用飞机场接触噪声作业工人纯音听阈测试分析

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

目的探讨生产性噪声对作业工人听力的影响。方法测定各噪声作业车间的噪声强度,对808名噪声作业人员进行纯音听阈测试,并对听力损失与工龄、工种的关系分别进行统计学分析。结果 4 000 Hz高频听阈听力损失人数最多;随着工龄的增加,听力损失检出率亦增加,不同工龄组间听力损失比较,差异有统计学意义(P<0.01),不同工种组间听力损失比较,差异无统计学意义(P>0.05)。结论噪声作业环境对作业工人高频听阈听力影响显著,随着噪声作业工龄的增加,听力损失检出率增加,建议加强个人防护,建立健康监护档案,控制职业性噪声聋发生。

[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（P〈0.01）.The hearing loss was not significantly different between worker of different type of work（P〈0.05）.[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.