Noise pollution

Noise pollution, also known as environmental noise, is the propagation of noise with harmful impact on the activity of human or animal life. The source of outdoor noise worldwide is mainly caused by machines, transport and transportation systems. Poor urban planning may give rise to noise pollution, side-by-side industrial and residential buildings can result in noise pollution in the residential areas. The main sources of noise in residential area are loud music and loud barking by domestic dogs. It can also be loud talking or shouting by humans although this last is less persistent. Noise pollution associated with household electricity generators is an emerging environmental degradation in many developing nations. The average noise level of 97.60 dB obtained exceeded the WHO value of 50 dB allowed for residential areas. Research suggests that noise pollution is the highest in low-income and racial minority neighborhoods. Documented problems associated with urban environment noise go back as far as ancient Rome.

High noise levels can contribute to cardiovascular effects in humans and an increased incidence of coronary artery disease. In animals, noise can increase the risk of death by altering predator or prey detection and avoidance, interfere with reproduction and navigation, and contribute to permanent hearing loss.While the elderly may suffer from cardiac problems due to noise, children to suffer much from it and can suffer permamnent damage for life. According to the World Health Organization children are especially vulnerable to noise. . Noise poses a serious threat to a child’s physical and psychological health, including learning and behavior

Noise pollution affects both health and behavior. Unwanted sound (noise) can damage psychological and physiological health. Noise pollution can cause hypertension, high stress levels, tinnitus, hearing loss, sleep disturbances, and other harmful effects.

Sound becomes unwanted when it either interferes with normal activities such as sleep or conversation, or disrupts or diminishes one's quality of life.Noise-induced hearing loss can be caused by outside (e.g. trains) or inside (e.g. music) noise.

This page was last edited on 22 March 2018, at 03:49.
Reference: under CC BY-SA license.

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