Sounds are all around us. The ability to hear sounds is a great gift. Not all sounds are pleasant, but they are necessary. Car and airplane engines, mowers, loudspeakers - these kinds of things help people function in the world. Unfortunately, these necessary sounds sometimes reach a volume that is dangerous for people and animals. If they get too loud or last too long, they become 'Noise Pollution'.

NOISE POLLUTION

The word noise is derived from a Latin word ‘Nausea’ which means sickness in which one feels the need to vomit. Noise is the unpleasant and undesirable sound which leads to discomfort in human beings. The intensity of sound is measured in decibles (dB). Noise above 85 dB over a prolonged period of time may start damaging our hearing. Loud noise above 120 dB can cause immediate harm to our ears.

THE DECIBLES (dB)

Due to increasing noise around the civilizations, noise pollution has become a matter of concern. Some of its major causes are Industrialisation, Vehicles, Events and Construction Sites. Its sources are vehicles, aircraft, industrial machines, loudspeakers, mining, construction of buildings, crackers etc. Some other appliances also contribute to noise pollution like television, transistor, radio, etc. when used at high volume.

CAUSES & SOURCES