noise pollution
During the last twenty years there has been increasing concern with the quality of the environment. Along with air and water contaminants, noise pollution has been recognized as a serious pollutant. As noise levels have risen, the effects of noise have become more apparent. Noise is defined as "unwanted sound". Noise has adverse effects on people and the environment. Noise causes hearing loss, interferes with human activities at home and work, and is in various ways dangerous to people's health and well being. Studies show that over forty percent of Americans are disturbed at home or lose sleep because of noise pollution. Causes of noise pollution include traffic, aircraft, rock bands, barking dogs, amplified music, television, garbage trucks, and noise from neighbors, voices, alarms, and watercrafts. Annoyance: When we think, talk, listen to music, or sleep we need quiet. Even low levels of noise can be annoying or frustrating. Sudden increases in volume can make sounds annoying - this is why sirens are so intrusive. The quieter the background, the more penetrating a noise can be. Natural sounds are
Sleep interference: Noise can wake people from sleep and keep them awake. Even if they are not actually awakened, a person's sleep pattern can be disturbed, which results in a reduced feeling of well being the next day. External noise measuring up to thirty decibels in a bedroom is acceptable for sleep. Percentage of Population Annoyed by Community Noise Federal Aviation Administration (FAA): The FAA has developed source regulations for commercial jet engines. All commercial jet engines must meet noise emission criteria prior to being certified for flight. Decreased work performance: As noise levels increase, our ability to concentrate and work efficiently and accurately reduces. Louder noise bursts can be more disruptive. Noise is more likely to reduce the accuracy of the work than the total quantity of work done. Complex tasks are more likely to be impaired. Noise can also make instructions or warning unclear, resulting in accidents.
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Approximate Word count = 962
Approximate Pages = 4 (250 words per page double spaced)
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