Ron's ESL Blogs

November 6, 2012

noise pollution in the city

Filed under: ESL Students' Writings — jiajun wang @ 05:47

noise pollution, human-created noise harmful to health or welfare. noise pollution adversely affects the lives of millions of people. Sound becomes unwanted when it either interferes with normal activities such as sleeping, conversation, or disrupts or diminishes one’s quality of life. The fact that you can’t see, taste or smell it .noise-induced stress creates severe tension in daily living and contributes to mental illness.Noise is recognized as a controllable pollutant that can yield to abatement technology.population showed that chronic exposure to moderately high levels of environmental noise contributes to hearing loss.High noise levels can contribute to cardiovascular effects and exposure to moderately high levels during a single eight hour period causes a statistical rise in blood pressure of five to ten points and an increase in stress and vasoconstriction leading to the increased blood pressure noted above as well as to increased incidence of coronary artery disease.Noise pollution is also a cause of annoyance. A 2005 study by Spanish researchers found that in urban areas households are willing to pay approximately four Euros per decibel per year for noise reduction. 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.

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