The damage done by noise mainly depends on how loud it is and the length of exposure. high pitch sounds are more damaging than low pitch sounds. Continuous high noise exposure may tire out inner cells of ear, causing permanent hearing loss. Normally workplace noise first affects ability to hear high pitch sounds. it means that person can hear some noise but other sounds will be unclear or distorted.
People suffering from noise induced hearing loss experience continual ringing in their ears, called tinnitus. Noise pollution also put stress on other parts of the body, causing the abnormal secretion of hormones and tensing of muscles. People exposed to noise also complain of nervousness, sleeplessness and fatigue.
Protective Measures:
Use suitable hearing protectors like ear plugs and ear muffs
