The rumble caused by the rebuilding secondary school project opposite my house is torturing me recently. I cannot enjoy TV program and sleep well. When I was listening radio, I wonder I was listened the song or the large and ear-piercing sound which came from the school.
I realized that noise pollution is quite a serious problem. Noise, as opposed to sound generally, is undesirable. For example, a band playing at full volume is as load and noisy as many machines, but to most people, it is far more pleasant.
Noise can be measured by a sound-level indicator which records sound in units called decibels. The reading on such an indicator in a quiet city house in the midnight might be 32 decibels; a soft whisper within 5 feet might be 34 decibels; while a ringing alarm clock in 2 feet away could be60 decibels. Anything over 100 decibels over an extended period can cause inflammation of the stomach and brain like headache, eye trouble and possibly permanent damage to the ear.
One of the main causes of noise in big cities today, especially near the airports, is the airplane. People who live near airports are generally affected. For example, those people who live near the London airport have requested the government to make their homes sound-proof.
How I wish my home also has this sound-proof facility as my home is quite near the airport and the most serious problem is that annoying rebuilding project opposite my house!!!