Noise Pollution

Whether knowingly or unknowingly, every one of us contributes to noise pollution, because most of our day-to-day activities generate some noise. Often neglected, noise pollution adversely affects the human being leading to irritation, loss of concentration, loss of hearing. Identify the sources of noise pollution. Once identified, the reason(s) for increased noise levels to be assessed. Now, efforts shall be made to reduce the undesired noise levels from (unwanted) noise generating sources. This leads to marginal reduction of noise levels.

It is still un-bearable scientific methods of noise control shall be employed. The statutory Regulations have prescribed the noise level exposure limits. The public may complain to the statutory Board for violation of noise level limits by any noise generator. Suitable action will be taken to attenuate the noise levels and controlling pollution. It is advisable that suitable noise control measures be taken and reduces the interference of Statutory Board. It is high time that everyone should do this bit in curbing the noise pollution, which is otherwise becoming as effective as slow poisoning.

Noise can be defined as unwanted or undesirable sound. The word “noise” is derived from Latin word “nausea” meaning seasickness. Be it human or machine-created noise disrupts the activity and balance of life. Humans, animals, plants and even inert objects like buildings, monuments and bridges have been the victims of noise pollution. Noise pollution is considered as major hazards of modern life especially in urban areas-areas that are most industrialized and urbanized.

Noise by definition is unwanted sound, what is pleasant to some cars it may be extremely unpleasant to other, depending on a number of physiological factors the sweetest music, if it disturbs person who is trying to concentrate or sleep is a noise to him. Just as the sound of pneumatic reverting hammer is noise to nearly everyone. Sound is a form of energy which is emitted by a vibrating body and on reaching the ear causes the sensation of hearing through nerves. Sounds produced by all vibrating bodies are not audible.

The frequency limits of audibility are from 20 HZ to 20,000 HZ. A noise problem generally consists of three inter-related elements- the source, the receiver and the transmission path. This transmission path is usually the atmosphere through which the sound is propagated, but can include the structural materials of any building containing the receiver. Noise may be continuous or intermittent. Noise may be of high frequency or of low frequency which is undesired for a normal hearing.

For example, the typical cry of a child produces sound, which is mostly unfavorable to normal hearing. Since it is unwanted sound, we call it noise. The discrimination and differentiation between sound and noise also depends upon the habit and interest of the person/species receiving it, the ambient conditions and impact of the sound generated during that particular duration of time. There could be instances that, excellently rendered musical concert for example, may be felt as noise and exceptional music as well during the course of the concert!