ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)76735
CIS number 01-860
ISBN(s) 0-7176-2019-0
Year 2001
Convention or series no. HSE Contract Research Report CRR 343/2001
Author(s) Lawton B.W.
Health and Safety Executive
Title Damage to human hearing by airborne sound of very high frequency or ultrasonic frequency
Bibliographic information HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2001. vi, 77p. 114 ref. Price: GBP 15.00.
Abstract This literature review examines the audiological, occupational hygiene and industrial safety literature on the subjective and auditory effects of audible sound in the very high frequency range (10-20kHz) and also in the inaudible ultrasonic range (greater than 20kHz, generally thought to be the upper frequency limit of young normal hearing). Proposed exposure limits have been in existence since 1961, with the intent of avoiding any subjective effects and any auditory effects, in any exposed individuals. The evolution of these internationally-recognised Damage Risk Criteria and Maximum Permitted Levels has been examined critically. Conclusions and recommendations are offered in respect of hearing damage and adverse subjective effects caused by sounds outside the customary frequency range for occupational noise exposure assessments.
Descriptors (primary) ultrasound; hearing loss; high-frequency vibration
Descriptors (secondary) literature survey; threshold limit values; noise level measurement; report; hearing damage risk criteria
Document type E - Books, reports, proceedings
Country / State or ProvinceUnited Kingdom
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Diseases of the ear and hearing damage
Vibration
Noise