Cause and effect of the causes of noise pollution noise pollution
sound than necessary until the cause adverse effects on the health of common people. From the source of many important and Siriporn. The Indus Valley. 2534: 222-223)
1.Transportation. The use of motorcycle, tricycle, cars, trucks and airplanes, more make the volume is increasing as well. May be classified as follows: to see
.Motorcycle, tricycle (took) have the Volume 35 dB
car audio level 60 - 25 dB
trucks have the volume 95 - 120 dB
trains running away 100 feet. Sound level 60 dB
planes have the volume 100 - 140 dB
.Office of the office of national environment. Determined the volume in a residential neighborhood in the daytime and night, no more than 60 เดซิเบลและ 55 dB, respectively. For the volume.Due to the engine or any part of the car. Motorcycles in normal than 95 decibels. When measuring the volume with a sound level meter in distance 7.5 meters surrounding the
2.Factories. Sound is caused by the operation of machinery of various sizes, which makes the volume is different from 60 dB until 120 decibels. Depending on the magnitude of machinery. The material used to make the wall or ceiling factory.3. From household sound caused by tools, home appliances, such as cutting machine view trade sucker of dust scrubber radio And TV cause volume about 60 - 70 dB
4.The noise resulting from other causes, including advertising, thunder and lightning, and the quarrel, brawl, various effects of noise pollution
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The specifications of the World Health Organization. For the volume is not exceed safe 85 dB when touching a 8 hours. The danger caused by pollution of waste. If touching a day. , hour long.1. Effects on the mind
- causing frustrated, annoyed, nervous stress
- causing emotional
- causing the mania. Distracting
2. Effects on body
- make a heart pounding, respiration rate change
.- cause of acid in the stomach than usual. Ulcer disease and gastritis. Food
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- high blood pressure makes the muscle spasms. Symptoms of racers and lose
- to sleep!- make the hearing ear can cause disability, hearing, deaf
3. Effect on the work, make the efficiency of work, reduced coordination. Delayed, sometimes fails to work. Or may cause an accident. 4.The effect on communication, louder than usual may interfere with communication receiver and receiving orders both may cause an accident. 5.Damage to the object sound with high level, such as the sound of the plane type faster than sound. Do cause vibration. Sometimes there is pressure makes the air pressure rise between 1-10 pounds per square feet.Such as walls, wall, roof and windows tremble. Front glass window is destroyed.
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