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Noise is being considered as pollution many time ago. Now with the help of technology we can try to control it and also to avoid it. Legal restrictions and environmental policies are making this matter works and we are more conscious about the problem itself. Noise has been consistently ranked as a leading cause of neighborhood dissatisfaction. In fact, one-half of the population in cities have felt noise as a major neighborhood problem . In the 1975 survey in states, street noise was mentioned more often than all other unwanted neighborhood conditions. This survey has also shown that aircraft and traffic noise are leading factors in making people want to move from their neighborhoods. Approximately one-third of all the respondents who wished to move because of undesirable neighborhood conditions, did so because of noise. We have here an example of what noise can do to someone, because of that local governments treat the noise as another environmental subject to solve. Are people seriously affected by noise? The day-night sound level of residential areas should not exceed 55 dB to protect against activity interference and annoyance . It is estimated that well over 100 million people, nearly half the U.S. population, liv
What are the social consequences of hearing loss? Behind the tympanic membrane is a cavity called the middle ear. The middle ear functions as an impedance matcher. Specifically, sound pressure from waves traveling through the air is amplified about 21 times so that it may efficiently travel into the high impedance fluid medium in the inner ear. This is accomplished by the leverage action of the three middle ear bones moves in and out of the oval window . Not just the people who is working suffer this pain, also people that try to sleep or to rest are suffering this problem. What about us the students, sometimes every week we need a quiet place where concentrate in our studies without noise. An estimated 15 million American workers are exposed to 75 dB or above which may be hazardous to their hearing. Because of tie overlap between persons in occupational and non-occupational noise exposure situations, there is an estimated total of 20 to 25 million persons, just in the states could may possibly incur in hearing losses . If we start talking about hearing losses we better take this subject into consideration. Is Important, is about health. Is the noise pollution an outdoors problem? No. It is generally believed that there is no risk since the body has a chance to recover. A little stress, as many people will attest, may be beneficial. There may be exceptions to the above statement. What type of relationship exists between hearing loss and the level and duration of noise exposure? Rosen conducted a study of the primitive Mabaans of the African Sudan. Their environment was almost free of noise with a typical background level of 40 dB . Among the Mabaans, the hearing abilities of men in their seventies and eighties is equal to that of healthy children at age ten. Many times, friends and associates become less willing to be partners in conversation or other activities with a person who suffers a hearing loss. It becomes difficult for a person with a hearing loss to participate in lectures, meetings, parties, theaters, and other public gatherings; to listen to the TV or radio; or have telephone conversations. A severe sense of isolation can set in as hearing decreases. As hearing loss increases so does the sense of being cut off from the rest of the world. Eventually hearing may decrease to the point that the person no longer feels a part of the living world. Emotional depression can be the result.
Some common words found in the essay are:
African Sudan, Hearing Loss, , Shift NIPTS, hearing loss, noise exposure, noise-induced hearing loss, noise-induced hearing, middle ear, noise levels, exposure noise, hearing damage, noise pollution, types hearing, inner ear, hearing damage noise, types hearing loss, exposure noise considered, exists hearing loss,
Approximate Word count = 2298
Approximate Pages = 9 (250 words per page double spaced)
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