NOISE POLLUTION

Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (1)         in temporary or permanent hearing loss. In addition to causing hearing loss, (2)     noise exposure can also (3)     blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution control is, (4)     , of importance in the workplace and in the community.

Noise effects can be (5)     by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs.

(4) ..................

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