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Effects Of Population Density Essay

1683 words - 7 pages

When people are crowded into a small place noise can have an affect on a person behavior and attitude. As with town and cities noise can cause many disadvantages. With the growth of the population in the world. Problems exist with noise and territory, privacy, and personal space. A person can have multiply health and psychological issues. The effects that population density has on these areas and look at two strategies that will help with reducing noise pollution in the environment and the workplace.Concept of Population densityHuman population is rising in the world. They are more concerns over the rise in population growth with the crowding and congested in specific areas of the world. Population density is the number people in a specific area, for example, a town, or country. Density is the number of individuals in area, for example, Individuals who live in urbanized areas has increased but the density has decrease due that the urbanized areas are expanding faster than urban population. "In 1960, about 96 million people lived in urbanized areas at an average density of 3,800 people per square mile. By 1970, 118 million people lived in urbanized areas, but the density of urban areas had dropped to 3,400" (Center for Research on Population and Security, n.d.). Increased density brings about other problems in the area such as air and noise pollution, crime, and use of natural resources.Concept of noisePeople depend on the hearing to help communicate with the environment around them. Noise can be seen as a disruption in the communication. Noise as noted as the unwanted sound. Not every noise caused damage and is unwanted sound. Many sounds are heard daily in people's environment, for example, television, household appliance and even some traffic sounds allowspeople to move in the environment. These sounds are heard from a safe distance and not at loud or long-lasting time. Noise can cause damaging effects on a person.Effects of NoiseNoise-induced hearing loss as stated by the National Institute on Deafness and Other Communication Disorders (NIDOCD) damages sensitive structures in our inner ear these small sensory cells relay sounds into electrical signals that go to our brain. Once these cells are damaged they cannot be replaced and will not grow back (NIDCD, 2008).A health concern with noise pollution has been studied by Gary Evans states that the researched looked at 217 third and fourth grader in a rural area before the opening and after the opening of a new airport. The children was tested for blood pressure and stress hormones levels six month before the opening of the airport and six to 18 month after the airport was opened the study showed "The children in the chronic noise group experienced modest but significant increases in blood pressure and significant increases in stress hormones (epinephrine, norepinephrine and cortisol) while the children in the quiet areas experienced no significant changes. Eighteen months after the airport...

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