Noise Pollution By Snehal And SwatiPresentation Transcript
Representation By: Swati Bhandurge and Snehal Herekar. Noise Pollution
The word Noise is derived from the Latin word ‘nausea’ which means feeling of sickness at the stomach with an urge to vomit.
Noise is usually defined as ‘unwanted’ sound or sound without value that causes discomfort to listener.
Noise may be either natural as thunder or human made. Human made sources of noise may broadly be classified into two types.
1. Industrial source of noise.
2. Non-industrial source of noise.
1.Industrial Source Of Noise:-
This is also called occupational noise and is largely produced by industrial machines and processes.
Noise originates there from various machines in connection with crushing of different materials, grinding, drilling etc.
2.Non-Industrial Source Of Noise:-
They are classified as follows:-
1. Domestic Noise.
3. Construction Work.
4. Transport Noise.
5. Crowded Markets.
6. Theaters, circus and carnivals.
7. Religious rituals and festivals.
8. Projection of satellite in space.
9. Atomic explosions.
Entertainment devices, e.g: T.V, radio, CD players and other devices like fans, pressure cooker etc.
Effects of sound produced by T.V and radio called Electromagnetic Interference ( EMI) are very slow but long lasting.
EMI slowly cause deafness and other bodily changes in those who hear them with a very high volume.
2. Loud - Speaker:-
This is one of the most common sources of human made noise pollution.
It is used for every occasion, religious or non-religious meals and election meetings.
Sometimes, one is liking or not, he/she is bound to listen different religious discourses due to use of loud speakers.
Noise from construction sites ( i.e. construction of roads, bridges and huge residential etc.)
This has been generally far worse than noise originating from industries and factories.
4. Transport Noise:-
Transport or traffic is created by a continuous running of auto-vehicles and is generated by engines in jet etc.
The steam engines used commonly by Indian railway produce a lot of noise.
The noise is at max. during take off and landing of an aircraft.
Often no regulations is observed in blowing horns and use of defective silencers.
5. Crowded Markets:-
In metropolitan cities such as Mumbai, Calcutta, Delhi etc the crowded markets have become great sources of noise pollution.
The chattering and bargaining of shoppers, loud speakers urging for buyers, stopping and starting of vehicle engines etc.
6. Theaters, circus and carnivals:-
Theaters, dance halls, circus and carnivals all cause noise pollution to nearby residents, especially in the evening.
7. Religious rituals and festivals:-
Various religious such as Yagna, kirtan and religious festivals such as deepawali, ganeshostsav etc all cause noise pollution.
For e.g: the noise of crackers during deepawali are so loud and unbearable.
8. Projection Of Satellite In Space:-
Satellites are thrown into space with the aid of high explosives rockets.
During this deafening noise is produced at the time of “lifting off ” a satellite.
Tonnes of explosives like TNT used in these operations produce noise pollution.
9. Atomic Explosions:-
Huge noise is emitted from the site of experimental atomic explosion.
Health effects of noise pollution
Noise pollution is increasingly seen as a health issue by physician and experts and is a growing problems throughout or permanent hearing loss depending on the volume duration repetition of explosion.
Sound volume is measured in decibel's(db).
Regular exposure to sounds of louder than 90 decibels can slowly damage our hearing, and sound like fire cracker of up to 140 decibels can damage our hearing immediately and painfully.
The loudest sound that can be tolerated by the human ear is about 120 db.
Hearing loss can in turn lead to depression, anxiety.
Intensifying of health problems.
Irritation and stress.
Temporary increase in blood pressure
High Blood Pressure.
Weakened immune system.
Example : Cardio-circulatory problems.
Research has been shown that excessive exposure to noise is one of the leading cause of hearing loss and hear damage.
It is a believe that earring loss is a nature process of aging.
Hearing loss is the third highest complaint from the United States, following arthritis and blood pressure.
Workers who are routinely subjected to long- term, low-frequency background noise such as vehicles ,machinery and engines, large compressors and air conditioning units are suffering many adverse health effects, particularly hearing loss.
Studies have shown night time traffic noise not only disturbs sleep but also encourages physiomatic illnesses, shorten the period of the deep,dream-rich[REM] rapid eye movement sleep lengthens the phase of light slumber and make cause cardiocirculatory problems.
Noise pollution can cause given the severity of the problem throughout in term of the number of peoples effected and the gravity of the problems cause ranging form of irritation, stress, learning difficulties.
Actions are urgently needed to be taken to reduce the noise level in society and there by to protect people from noise pollution.
Individual Measures And Public Education
Public education can be effective through it is also expensive.
All people should be taught to avoid loud noise that do permanent damage to your ears.
People should also be made aware of how the noise pollution they create (for instance, from honking their horns or playing music loudly) effect others.
People can also play their music more quietly and learn to honk less (by driving more slowly, flashing their lights instead of honking, and avoiding honking in unnecessary situations such as traffic jams). To avoid hearing loss, people can ear plugs while at loud concerts or operating loud appliances or machines. Ear plugs can help reduce intensity of loud sounds and reducing damage for those whose jobs contact with loud noises. Noise awareness they can be celebrated to bring to peoples attention the problems caused by noise and to motivate people to reduce it.
Legal And Policy Measures
Around the world, government, NGO’s and citizens group are working on policy measures to reduce noise pollution. The more significant aspect include setting a decibel limit on allowable noise stabling penalties for those exceeding those limits and banning the use of device that are considered a public nuisance because they create excessive noise. Survey conducted by AIIMS reports that the average noise levels in Delhi, Mumbai and Collate were around 95dB.
CONCLUSION :- Noise pollution refers to the unwanted sound dumped into the atmosphere leading to health hazards. A particular sound may be music to one but noise to another; pleasant when soft but noise when loud.