论文部分内容阅读
探讨高温和噪声联合作用是否加重噪声对听力的影响。采用分层随机抽样的方法,抽取年龄在20岁以上,工龄在2年以上的职工291人(其中高温组94人,噪声组101人,高温噪声组96人),并以机关后勤人员73人为对照。调查询问个人信息、既往史及职业史,并进行现场高温、噪声监测,被调查者作听力测试。结果显示,噪声组的语言频率听阈值和高频听阈值均高于对照组;高温噪声组在语言听阈与高频听阈与单纯噪声组相比,差异无统计学意义;高温噪声作业工龄对听力的影响,无论是高频听阈还是语频听阈差异均无统计学意义。本次调查显示一定水平的噪声和低强度的高温的联合作用对听力的影响不明显,高温并未加重噪声对听力的损伤。
To investigate whether the combination of high temperature and noise aggravates the influence of noise on hearing. A total of 291 workers (94 in the high-temperature group, 101 in the noise group and 96 in the high-temperature noise group) were sampled by stratified random sampling method from workers aged 20 years and older and more than 2 years of service. Control. Survey asked personal information, past history and occupation history, and site temperature, noise monitoring, respondents for hearing tests. The results showed that the speech threshold of the noise group and the threshold of the high-frequency hearing were higher than those of the control group. There was no significant difference in the speech threshold and high-frequency hearing threshold between the high-temperature noise group and the pure noise group. No significant difference was found between the high-frequency threshold and the audio threshold. The survey shows that the combined effect of a certain level of noise and low temperature and high temperature has no significant effect on hearing, and high temperature does not increase the hearing damage caused by noise.