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Nowa Audiofonologia Pub Date : 2019-11-21 DOI:10.17431/1003499

Sylwia Greta Schwartz, Małgorzata Toś, Grażyna Mielnik-Niedzielska

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引用次数: 0

摘要

目的:评价热索夫冶金厂W-68系工人入职后3年和10年的听力状况。材料与方法:对30名从事听力器官高噪声暴露岗位的工人进行合格检查。通过对冶金厂职工预防性体检的分析，进行回顾性研究。分析了年龄、工作时间、噪声暴露及其他可能影响听力器官的因素。比较工作3年和10年后的平均听力损失。结果:受访员工平均年龄为46.1岁，年龄在35 ~ 60岁之间。每个人都是三班倒，一天八小时，在噪音中工作。另一个可能影响听力器官的因素是振动，其平均水平为0.96 NDN(最大允许强度)。工人在工作场所暴露的噪声范围为80 ~ 88分贝，平均水平为87分贝。按0.5 Hz、1 kHz、2 kHz和4 kHz的算术平均值计算，这些员工工作3年后的平均听力损失为右耳11.7 dB，左耳11.9 dB。然而，经过10年的工作，平均听力损失为右耳16分贝，左耳17.2分贝。工作10年后，最大的听力损失发生在频率2和4千赫。右耳在2千赫时为14分贝，在4千赫时为24分贝。左耳为2千赫- 15分贝，28分贝为4千赫。结论:通过对实验结果的分析，可以看出噪声对听觉器官的损害作用。工作10年后，右耳听力阈值提高4.3 dB，左耳听力阈值提高5.27 dB。频率在2khz以上时，其特点是听阈值增高，这与工业噪声对听觉器官的影响有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ocena stanu słuchu u pracowników Zakładu Metalurgicznego WSK Rzeszów (Wydział W-68) po 3 i 10 latach pracy

Aim: Assessment of the hearing status of employees of the W-68 Faculty of the Metallurgical Factory WSK Rzeszow, exposed to noise, after 3 and 10 years after employment.Material and Method: Thirty workers employed in positions with high noise exposure to the hearing organ were qualified. A retrospective study was conducted through the analysis of preventive check-ups of employees of the Metallurgical Factory. The age, working time, exposure to noise and exposure to other factors that may affect the hearing organ were analyzed. Average hearing loss was compared after 3 and 10 years of work.Results: The average age of the surveyed employees was 46.1 years and ranged from 35 to 60 years. Everyone worked in a 3-shift system, 8 hours a day, in noise. An additional factor that could affect the hearing organs were vibrations, where their average level was 0.96 NDN (maximum admissible intensity). The noise range to which workers were exposed ranged from 80 to 88 dB in the workplace, and its average level was 87 dB. The average hearing loss, calculated as the arithmetic average for 0.5 Hz, 1 kHz, 2 kHz and 4 kHz, in these employees, after three years of work was 11.7 dB for the right ear, and 11.9 dB for the left ear. However, after 10 years of work, the average hearing loss was 16 dB for the right ear and 17,2 dB for the left ear. The largest hearing loss occurred at frequencies 2 and 4 kHz after 10 years of work. It was 14 dB for 2 kHz and 24 dB for 4 kHz in the right ear. And in the left ear for 2 kHz – 15 dB and 28 dB for 4 kHz.Conclusions: The analysis of the presented results shows the harmful effect of noise on the condition of the hearing organ. There was an increase in the hearing threshold by 4.3 dB for the right ear and by 5.27 dB for the left ear after 10 years of work. It is characteristic to increase the hearing threshold for frequencies above 2 kHz, which is related to the influence of industrial noise on the hearing organ.

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Nowa Audiofonologia

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