CAJ | 학술논문

目的：探讨石化生产车间噪声的种类和强度及其对作业工人位听功能的影响。方法：用精密积分声级计记录北京燕山石油化工有限公司4个生产车间噪声强度及频率分布，按常规对117例作业工人行纯音测听，其中51例还做了听性脑干反应(ABR)及前庭功能测试。结果：生产车间噪声为宽频稳态噪声，声强85.7～104.0dB(A)，频率范围起伏以1～8 kHz为主；工人中59.0％(69/117)出现听力损失，听力以高频损失为主，语言频率以轻度损失为主；工龄在10年以上较5年以下者听力受损明显增加；ABR各波潜伏期及波间期与对照组无明显差异。在听力受损者中，有17.4％前庭功能冷热试验双侧不对称比值(CP)超过正常范围。结论：石化生产车间噪声为宽频稳态噪声；长期接触生产噪声可导致一定程度的听力损失，听力损失程度和前庭功能异常之间无明显相关性。
목적：탐토석화생산차간조성적충류화강도급기대작업공인위은공능적영향。방법：용정밀적분성급계기록북경연산석유화공유한공사4개생산차간조성강도급빈솔분포，안상규대117례작업공인행순음측은，기중51례환주료은성뇌간반응(ABR)급전정공능측시。결과：생산차간조성위관빈은태조성，성강85.7～104.0dB(A)，빈솔범위기복이1～8 kHz위주；공인중59.0％(69/117)출현은력손실，은력이고빈손실위주，어언빈솔이경도손실위주；공령재10년이상교5년이하자은력수손명현증가；ABR각파잠복기급파간기여대조조무명현차이。재은력수손자중，유17.4％전정공능랭열시험쌍측불대칭비치(CP)초과정상범위。결론：석화생산차간조성위관빈은태조성；장기접촉생산조성가도치일정정도적은력손실，은력손실정도화전정공능이상지간무명현상관성。
Objective: In order to observe the kinds and intensity of the working noise of Yansan Petrochemical Co. and the effects caused by the working noise on the workers＇ vestibular and auditory function. Method :The intensity and frequency of the working noise were recorded by exactolnoisemeter in the workshop. One hundred and seventeen workers were tested in routine pure-tone tested method. The SPVN and ABR were tested within fifty-one workers of all. Result:The working noise of Yansan Petrochemical Co. belongs to the broad band and steady noise. The intensity of the working noise were during 85.7～104.0 dB (A) and the main frequency were during 1～8 kHz. About 59 percent workers who exposed to the working noise had hearing loss. The most hearing-loss were in the high frequency. The hearing-loss of speech frequency were slight. Workers who have more six years standing have obviously increased hearing-loss than the workers who have less five years standing. There were significant differences the ABR thresholds and wave-interval between the tested and controlled groups. The SPVN and CP were abnormal in more than 17.4 percent workers with hearing loss. Conclusion: The working noise of Yansan Petrochemical Co. belongs to the broad band and steady noise. Working noise can lead to workers＇ hearing loss of certain degrees who exposed in the noise for a long time. Obvious correlation was not defined between the hearing-loss and the abnormal vestibular response group.