Noise at the work place and noise-induced hearing loss in the Japanese industry, especially in small-sized companies with less than 50 employees
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概要
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In recent years, the ambient noise levels at the workplace have been reduced in large-sized corporations. However, little is known about the noise exposure levels and the prevalence of occupational hearing loss in small-sized companies in Japan. The purpose of this study was to determine whether noise-induced hearing loss still remains a prevalent occupational health problem, especially in small-sized companies with less than 50 employees.The investigation revealed the following:1. Although noise levels were well controlled in large-sized corporations, high levels of noise at the workplace were still confirmed in small-sized companies.2. Two companies provided consent for measurement of the ambient noise levels and of the hearing levels in its employees. Although the noise levels were not extremely high at either company, hearing loss, supposedly noise-induced, was identified in 5 of the 7 employees in one company and 4 of the 14 employees at the other company.3. In conclusion, specialists of noise-induced hearing loss authorized by the Oto-Rhino-Laryngological Society of Japan should play a role in shedding light on possible methods to prevent occupational hearing loss, especially in small-sized companies.
- 日本聴覚医学会の論文
日本聴覚医学会 | 論文
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- Noise at the work place and noise-induced hearing loss in the Japanese industry, especially in small-sized companies with less than 50 employees