March 2017
Intermediate to advanced
592 pages
17h 6m
English
Content preview from Environmental Engineering
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11
NOISE: SOURCES AND CONTROL
11.1 INTRODUCTION: SOUND AND NOISE
Noise is a sound that is loud, unpleasant, unexpected or undesired. It is a disruption or disturbance of normal activities which can harm normal activities. The long term or frequent exposure to loud sound can be hazardous to a person. Noise is a subjective in the sense that the sound that is a pleasure for some one can be annoying for others.
It disrupts or disturbs the normal activities like sleeping and conversations and can even harm human health. Noise is a form of pollution as it tends to cause hearing impairment, psychological stress and psychological harm.
It diminishes one’s quality of life. Although it always remains around us, it has not received as much attention as ...
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