Assessment of hearing threshold and noise induced hearing loss in people engaged in different occupations

Abstract

Hearing threshold was assessed in subjects engaged in different occupations at 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz and 8000 Hz, for left and right ear. The results revealed that the hearing threshold of truck drivers, auto drivers, traffic policeman, shop keepers, military personals, post office personals are significantly higher than the corresponding value for the normal subjects (persons not engaged in any particular profession). Among the different occupational categories, the truck drivers were found to have maximum hearing loss at higher frequencies which was followed by traffic police, army personals, auto drivers, shopkeepers and tailors.

Keywords

• Noise
• Occupation
• Hearing threshold
• Noise induced hearing loss