LIMITES DE TOLERÂNCIA PARA EXPOSIÇÃO AO RUÍDO E O RISCO DE MUDANÇA SIGNIFICATIVA DE LIMIAR AUDITIVO

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Introduction: Laws and recommendations have established noise tolerance limits, attempting to minimize its effect on workers. Research in this area is very important to consolidate a more accurate model for the prevention of hearing loss. Objective: The present study aims to examine the hearing profile of workers from a slaughterhouse business and the occurrence of significant changes in the threshold of the individuals exposed to noise levels below the existing standards and regulations, comparing them to individuals exposed to excessive noise levels. Methodology: To achieve the proposed objective, we have used the database of a workgroup called Hearing Health: Environmental focus, from Paraná state Tuiuti University (UTP), in which there were 266 investigated workers. Only workers with more than 2 audiometric exams and the ones with noise exposure data were not taken into account. We were left with 63 exams divided into 3 noise levels, 79 to 84.9 dB(A), 85 to 89.9 dB(A) and 90 to 98.8 dB(A), in which we evaluated the occurrence of significant change in the noise level threshold below the existing standards and regulations and compared the results with the ones of individuals exposed to more than 85 dB(A). This was a quantitative research, characterized by a retrospective study of the descriptive type. Results: Workers exposed to low noise levels in the work environment show a tendency to present permanent threshold change, bigger than that for the ones exposed to loud noises.

ASSUNTO(S)

saúde auditiva fonoaudiologia limiar auditivo ruído

ACESSO AO ARTIGO

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