Noise Pollution

Noise pollution is unwanted sound. Crowd of people, radio, mike, means of transportation and machines and other instruments are the source of sound. Industrial area, market area and heavy construction also produce sound. If much sound, which is unwanted is produced from these sources it is called noise pollution.

a. Causes of Noise Pollution
We will study of the main causes of noise pollution:
· Market area, densely populated settlement, industrial areas produce much sound that makes noise pollution.
· Cement industry, furniture factory and mills also produce much sound that makes noise pollution in that area.
· Musical instruments produce pleasant sound but if they are used improperly and produced much sound that makes noise. Similarly, if radio and television is kept on high volume it makes noise pollution.
· In city area there is publicity of different news through mike and gathering of people at the side of the road and corners produce much sound and causes noise pollution.

b. Effects of Noise Pollution
Noise pollution affects us different ways. Some of the main effects are given below:
· In the noisy place we should speak loudly. It affects our health that causes blood pressure too. It makes differences in human behaviour and dealing to other persons.
· Noise affects our mind, which in turn harms our physical part of the body.
· Noise pollution disturbs our digestive system, sleeping habit that causes several diseases. It makes us lazy and disturbs our normal life.
· Exposure to noise for a longer period affects on our hearing power. If this affect is continued it damages eardrum. It results in the loss our hearing power permanently.

c. Methods of Noise Pollution Control
There are different methods of noise pollution control. Some of them are given below:
· Tree plantation in open area will help to control of transmission of sound produced from crowd of people, industries, market area and means of transportation. It protects the transmission of sound from there to another place.
· Manufacturing industries produce different things through processing the raw materials. I produce much sound in that area. If such industries use the equipment or machines that produce less sound that helps to control noise pollution. Another way of controlling noise pollution is to build walls around the industries that protect sound of that area.
· Means of transportation is of the sources of noise pollution. Plantation of trees on either side of road protects the sound to transmit from there to another place.