论文部分内容阅读
本文报道了429例持续接触85、90、105dB(A)稳态噪声的工人听力损失的调查结果,发现85dB(A),工龄8年以上、13年以上和18～22年三组听力损失发生率分别为5.82%、16.66%和30.00%;高损发生率分别为35.29%、45.83%、60.00%。听力损失预测方法分析研究表明,应用回归方程y=15..9(-1)%的听力损失计算值与本次调查实测值及ISO公布有关听觉丧失危险性的资料均十分接近;接触85dB(A)工龄10、15、20和25年的听损发生率计算值分别为12.72%、19.08%、23.85%和28.62%。因此,建议对我国目前85dB(A)的噪声卫生标准予以适当的修订。
This paper reports 429 cases of 85,90,105 dB (A) steady-state noise hearing loss of workers survey found 85dB (A), more than 8 years of service, more than 13 years and 18 to 22 years of hearing loss occurred Rates were 5.82%, 16.66% and 30.00%, respectively. The incidence of high damage was 35.29%, 45.83% and 60.00% respectively. Hearing loss prediction method analysis and research shows that the application of the regression equation y = 15..9 (-1)% of the calculated hearing loss and the survey data and ISO published information on the risk of hearing loss are very close to; exposure to 85dB ( A) The calculated incidences of hearing loss at 10, 15, 20 and 25 years of service were 12.72%, 19.08%, 23.85% and 28.62%, respectively. Therefore, it is suggested that the current noise standard of 85dB (A) in our country should be appropriately revised.