Document Detail

Occupational noise exposure and hearing levels.
MedLine Citation:
PMID:  7246429     Owner:  NLM     Status:  MEDLINE    
A study was made at the Bhabha Atomic Research Center to measure the hearing levels of persons working in a noisy environment. Two different workplaces, central air-conditioning plant and glass flowing shops, where a number of persons were exposed to noise levels exceeding 85 dB(A) were chosen. The occupational exposure to noise was determined using a sound level meter, an octave band filter and a personal noise dose meter. The hearing levels of persons exposed to these high levels of noise and a control group not exposed to occupational noise were measured by means of a pure-tone audiometer in a specially-build booth. These persons, aged between 20 to 60 years, were divided into four age groups for the study. The low ambient noise levels in the booth were measured using correlation technique since such low signals cannot be detected by an ordinary sound level meter. The audiometric findings and the results of the noise level survey are discussed in this paper.
M Ambasankaran; D Brahmachari; V K Chadda; M G Phadnis; A Raju; A Ramamurthy; V R Shah
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American Industrial Hygiene Association journal     Volume:  42     ISSN:  0002-8894     ISO Abbreviation:  Am Ind Hyg Assoc J     Publication Date:  1981 Jul 
Date Detail:
Created Date:  1981-08-10     Completed Date:  1981-08-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0371160     Medline TA:  Am Ind Hyg Assoc J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  551-5     Citation Subset:  IM    
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MeSH Terms
Age Factors
Hearing Loss, Noise-Induced / etiology*
Hearing Tests
Middle Aged
Noise, Occupational*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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