Pollution

Stop noise polluction

Noise pollution is considered by most of the population of large cities as an important environmental factor that influences the primary way their quality of life. Urban environmental pollution or environmental noise is a direct consequence of their own unwanted activities taking place in major cities.

The term refers to the noise when the noise is considered as a contaminant, ie annoying noise that can cause adverse physiological and psychological effects on a person or group of persons. The main cause of noise pollution is human activity; transportation, building construction and public works, industry, among others. The effects of noise can be physiological, such as hearing loss, and psychological, such as exaggerated irritability. Noise is measured in decibels (dB); more teams are used as sound level meters. A report by the World Health Organization (WHO) considers 50 dB as the desirable upper limit.

Technically, the noise is a type of high energy processes or activities that propagates in the environment as complex wave from the producer focus to the receiver at a given speed and decreasing its intensity with distance and the physical environment.

Noise pollution disturbs the various community activities, interfering spoken communication, this base of human society, disrupting sleep, rest and relaxation, preventing concentration and learning, and what is worse, creating states of fatigue and tension which can lead to cardiovascular diseases and nervous type.

There is information about the inconvenience of noise in cities from antiquity, but from the past century as a result of the Industrial Revolution, the development of new means of transport and the growth of cities when it begins to really show the problem of urban noise pollution. The root causes are, among others, the dramatic increase in car ownership in recent years and the particular fact that the cities were not design ities were not designed to withstand transportation with unsuitable narrow streets and tight.

In addition to these sources of noise in our cities listed a variety of other sound sources, such as industrial, public works, building cleaning services and garbage collection, sirens and alarms, as well as activities leisure and recreation, among others, which together come to cause what is known as urban noise pollution.

The next job is to try to reflect the impact caused by noise pollution in the Sevillian population and the potential impact it may have in this society.

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