職業性難聴をめぐる二, 三の問題点

概要

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The sonpensation for occupational hearing loss was established in 1947 by the Lobour Standard Law, and awards have been made by the same criteria as those for acoustic trauma. In 1952, Japanese Shipbuilders Association made some proposals to the Labour Standard Bureau, Ministry of Labour, about the diagnosis of and the compensation for occupational hearing loss, while the ship-building worker's union claimed awards for all cases, where hearing losses exceed 30 db in the speech frequency range, and the Special Committee on Occupational Hearing Loss was organized in 1954 by the Ministry of Lobour to discuss this problem. Such a situation whetted the interest of industrial physicians and research workers in this problem, and the Ministry of Labour began a comprehensive survery on workers exposed to noise in various fields of industry. The compensation problem is still under discussion and the criteria of compensation will be established in near future on the basis of the results of the survey. The present author pointed out some points, which should be taken into consideration in discussing the compensation, such as presbycusis and sociocusis, temporary threshold shift and so on, and he slso introduced some papers on the maximum allowable limit of noise.
社団法人日本産業衛生学会の論文