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4.  Noise pollution or noise disturbance is the disturbing or excessive noise that may harm the activity or balance of human or animal life.noise  The source of most outdoor noise worldwide is mainly caused by machines and transportation systems.machinestransportation systems  Outdoor noise is summarized by the word environmental noise. Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential areas.environmental noiseurban planning

6. Traffic is the main source of noise pollution in cities. One of the main cause of noise pollution is TRAFFIC.

8.  Noise-induced hearing loss (NIHL) is hearing decrease caused by loud sound. Evidences of NIHL include a history of exposure to loud sound and a hearing loss in a narrow range of frequencies, such as those from gunfire, power tools, explosions and night club music. The loud sounds result in the over- stimulation of the hearing cells leading to cell death.

9. NNoise has been associated with important cardiovascular health problems. In 1999, the World Health Organization concluded that the available evidence suggested a weak correlation between long- term noise exposure above 67-70 dB(A) and hypertension. More recent studies have suggested that noise levels of 50 dB(A) at night may also increase the risk of myocardial infarction by chronically elevating cortisol production.

10. PPerhaps the most serious problem created by sound pollution is the impact it has on our health. Because sound pollution can trigger the body’s stress response, one of its major health effects is chronic stress and the high levels of stress hormones that go with it. As a result, noise pollution has also been linked with health problems such as heart disease, high blood pressure, and stroke.

12. SS ound-proof your space. When you can't stop the noise at it's source, you can do your best to keep it out. Sound-proofing your home will help you rest easier at night and keep your home quieter during the day as well. AAcoustic foam panels are a cheap, easy-to-install option when you want to quickly soundproof a room. For an even easier solution, try hanging blankets on the walls or installing extra bookcases filled with books.

13. CCheck into the noise pollution laws in your area. Most urban communities have rules to prevent noise pollution from getting out of control. For example, there are laws dictating during which hours a construction site may actively use machinery, and when they need to stay quiet. As a community member, you can help enforce the laws if you know what they are

14. DDon't use your car horn unnecessarily. Don't be part of the problem by leaning on your horn every time someone looks at you wrong on the street. Use your horn only when absolutely necessary, as a way to let someone know that you're present or warn them when they're about to collide with something. It's good driving etiquette, and makes life more pleasant for city-dwellers.