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SOM VEL DE
RUÍDO (dB)
EFEITO
Sussurro 30 Muito silencioso
Escritório em Silêncio 50-60 Os níveis confortáveis de audição
estão abaixo de60 dB
Aspirador de Pó,
Secador de Cabelo
70 Intrusivo; interfere em conversas
ao telefone
Liquidicador 85-90 Os danos à audão (8h) ocorrem
a partir do nível de 85dB
Caminhão de Lixo,
Betoneira
100 o se recomenda mais de 15
minutos de exposição sem proteção
para ruídos entre 90 e 100dB
Serra Elétrica, Broca/
Britadeira
110 A exposição regular a ruídos acima
de 100dB por mais de 1minuto
pode causar perda permanente
da audição
Shows de Rock (varia) 110 -140 O limiar da dor começa em
aproximadamente 125dB
* Informações da tabela em http://www.nidcd.nih.gov/health/education/teachers/pages/common_sounds.aspx
Português
Esta tabela de decibéis (dB) compara alguns ruídos comuns e mostra suas
classicações em relação a possíveis danos à audição.
38


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