BU414 Chapter Notes - Chapter 5: Conductive Hearing Loss, Personal Protective Equipment, Stress (Mechanics)
Document Summary
Physical agents sources of energy that may cause injury or disease. Ambient all-encompassing condition associated with a given environment, being usually a composite of inputs from sources all around us. Noise is defined as any unwanted sound and is often referred to as the most common workplace hazard. Early warning change a deterioration of hearing in the upper frequency the earliest detectable sign of noise-induced hearing loss. Sound to one individual may be noise to another individual. The term threshold of hearing refers to the envelope or range of sound that the human ear can perceive or hear. Human hearing response is conditional on three characteristics: frequency, duration and loudness. The louder the noise, the more problems it can cause. Two types of hearing loss: conductive and sensorineural. Conductive hearing loss can be caused by wax buildup, infection or trauma.
