what causes noise pollution?

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  • 8 years ago
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    Causes of Noise Pollution

    The sources of noise are more in urban and industrial areas than in rural areas. The sources in general may be stationary or mobile.

    1. Stationary Sources

    Use of loudspeakers on various occasions like festivals, elections, worships in temples, mosques and during advertisements, mining operations, use of bulldozers, drillers and dynamites to break rocks, household gadgets like vacuum cleaner, TV, radio, stereo, grinder, mixer etc., common vegetable and fish markets.

    2. Mobile Sources

    Road traffic, railway traffic, air traffic, navigation etc the sources of noise can be classified in following categories:

    (1) Transportation / Traffic noise

    (2) Industrial noise

    (3) Noise from construction work

    (4) Neighborhood noise

    1. Transportation / Traffic Noise

    The main threat of noise comes from transport. A survey in Delhi, Mumbai and Kolkata showed that daytime noises varied from 60 dB (A) in busy localities. In some heavy traffic areas, the average noise level reached up to 90 dB (A) even at nights.

    (a) Road Traffic or Highway Noise:

    The noise generated from highway traffic is one of the major sources of noise pollution. Highway noises are of two types, viz., noises generated by individual vehicles and noises generated by a continuous flow of vehicles of all types.

  • 8 years ago

    Modern life has given rise to a new form of pollution. The word noise is derived from the Latin 'nausea' meaning disgust. Noise is usually defined as undesired sounds producing an auditory sensation considered being annoying.

    Noise is the unwanted sound, usually of high intensity and it causes irritation and discomfort. Sources of noise are many, but it is always higher in urban and industrial areas than the rural one. Industries expose their workers to high noise load for long period of work every day.

    Road traffic particularly during peak hours is another noise pollution source to travelers as well as to the shopkeepers and residents of the concerned area. Uses of loudspeakers on almost all kinds of occasions like festivals and elections, worship, and during advertisements are common almost all the year round.

    Noise is defined physically as a complex sound with little or no periodicity and psychologically as a sound under sired by the recipient. The American National Standards Institute defines noise as any 'undesired' sound or 'unwanted' sound or sound 'without value.' Its definition can be more appropriately stated as - "Noise is unwanted sound or sounds of a duration, intensity, or other quality that cause some kind of physiological or psychological harm to humans or other living things."

    (1) 28 million people in USA have hearing loss and noise is one of the leading causes of hearing loss, especially in young people.

    (2) Noise negatively affects learning and behaviour.

    (3) Studies show that children's learning is negatively affected by noise in the classroom.

  • 4 years ago

    Noise air pollution is any noise that creates a disturbance in day-to-day life. Planes, trains, automobiles, industrial undertaking, etc. Can be reasons for noise air pollution. For instance, should you are living close a energy plant, you could possibly expertise noise air pollution from its operation.

  • 8 years ago

    The cumulation of various loud noise sources, including things like planes, cars, trucks, construction equipment, etc. It can all just combine into a cacophonous din, like a loud background noise.

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  • Anonymous
    8 years ago

    Loud noises

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