Accession Number : AD0776943

Title :   Changes in Hearing of Workers under a Prolonged Effect of Noise with Standard Parameters,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Maksimiva,L. I.

Report Date : 26 MAR 1974

Pagination or Media Count : 15

Abstract : For prolonged periods of time under industrial conditons, noise at 85-88 dB which is at the maximum permissilbe levels and 74-80 dB which is 5-10 dB below the maximum permissible levels in the frequency range of 800 to 4000 Hz, can present a danger with regard to the development of occupational hardness of hearing when the individual's hearing organ is not sufficiently stable. In order to improve the effective standards, in addition to physiological studies, it is necessary to carry out dynamic clinical observations in the process of chronic noise effect under industrial conditions.

Descriptors :   *Hearing, *Noise, *Ear protectors, Deafness, Test methods, Audiometry, Stress(Physiology), Personnel, USSR, Translations, Occupational diseases, Medical research, Auditory acuity, Predictions

Subject Categories : Anatomy and Physiology
      Environmental Health and Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE