Occupational noise as a health hazard: Physiological vewpoints

Abstract

Industrial noise can be a health hazard in mainly two ways. It can damage the ear and it can influence a number of other bodily functions. The latter effect is mediated through the sympathetic nervous system and the hypophyseal hormone system. An overview is presented. The presently accepted occupational noise standards and recommendations concern only permanent damage to the ear, i.e., that resulting in permanent hearing loss. Other effects, such as the acute effect of noise (temporary hearing loss), tinnitus, vertigo and fatigue, as well as the general effect on many vital bodily functions, are not considered therein.