Noise pollution can be caused by several phenomenon including industrial activity, and social activity (such as explosion of fire crackers, loud parties), and surface travel. The many causes of noise pollution are discussed below:
1. Fire crackers: Fire crackers are exploded to make huge sound during celebrations and festive occasions. It is common sight to witness the firing of crackers at live concerts.
2. Transportation vehicles: Noise pollution is severest in the cities. The different modes of transportation (land, air and water), such as motor-cars, buses, trains, trams, airplanes, etc. produces sound that disturbs the human mind.
3. Microphones: The unrestricted use of microphones during social and political events.
4. Loud speakers: During social events and other festive occasions, people use loud speakers in unjustified manner.
5. Factories and industries: In large cities, there are large number of factories, mills and industries. These industrial sites produce immense environmental noise to disturb the habitats of nearby residential areas.
6. Domestic appliances: Even at homes, people use large number of domestic appliances such as grinder, mixer, juicer, etc.
7. Loud music: Playing music in high volume,
8. Television: Television also causes sound and watching television for long hours in just as harmful for ears as they are for eyes.
9. Building and construction sites near residential areas: The building and construction activity involves use of sound producing equipment such as cement-mixer, road-roller, crane, etc.
All the above activities produce enough noise to disturb the health and mind of human-beings and other living bodies.
Credits:
http://www.importantindia.com/17093/noise-pollution-causes-effects-and-prevention
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