噪音污染是当代社会的四大公害之一。在一些地方，噪音成为人们身心健康的主要公害。那么，噪音是从哪里来的呢？从物理学角度看，噪音是指发声物体做无规则的杂乱无章的振动时发出的声音。但从环境保护的角度看，凡是妨碍人们正常休息、学习和工作的声音，以及对人们要听的声 Noise pollution is one of the four major public hazards in contemporary society. In some places, noise has become a major public hazard to people’s physical and mental health. So where did the noise come from? From a physics perspective, noise refers to the sound emitted by a vocal object as a random, disorderly vibration. But from an environmental protection point of view, there are sounds that hinder people from normal rest, study, and work, as well as the sounds that people have to listen to.