What is Noise pollution?
‘Psychologically noise can be defined as a unwanted sound or a sound with which modern civilization cannot be reasonably put up. Any sound that is unbearable to the ear is termed as noise. Noise as a function disturbs a person his activities and mental abilities. Noise is a form of air pollution and like other pollution affects everyday life and so can be thought as a social case’
Effects on humans: Apart from everyday deafness, noise the effect of noise disappears with the noise. Prolonged exposure to intense noise causes prolonged hearing loss. Very much lower noise levels however result in interference with conversation; hinder concentrated mental effort, stress, and inefficiency in work. Prevent sleep, brings about irritability and interfere with recreation and relaxation. Indoor noise can be caused by machines, building activities, and music performances, especially in some workplaces. Noise-induced hearing loss can be caused by outside (e.g. trains) or inside (e.g. music) noise. High noise levels can contribute to cardiovascular effects in humans, a rise in blood pressure, and an increase in stress and vasoconstriction, and an increased incidence of coronary artery disease.
Effects on animals: Noise can have a detrimental effect on wild animals, increasing the risk of death by changing the delicate balance in predator or prey detection and avoidance, and interfering the use of the sounds in communication, especially in relation to reproduction and in navigation. Acoustic overexposure can lead to temporary or permanent loss of hearing.
Solution: Legislation and public co-operation are essential to check noise pollution. Nobody should be permitted to create noise in silent zones, noise-producing traffic vehicles should be prevented from plying on the roads. Standards for noise control measures should be set up for industry and community. The existing ordinances and acts against dangerous form of environmental pollution should be revised from time to time depending upon the changing nature of the sources.