Noise pollution is the excessive noise that may harm the activity or balance of human being. The source of most noise worldwide is mainly caused by atmospheric noise/environmental noise/occupational noise such as industrial machines, transportation systems and indoor noise generated by machines (particularly in some workplaces), building activities, domestic appliances and music performances etc. The construction and industrial machineries frequently exposes its employees to hazardous noise levels and at the same time adds greatly to community noise. Noise may not be high enough to damage hearing (within buildings) and however the same have an adverse effect on general human health. Transportation contributes largely to environmental noise. The government of different countries has rules & regulations against the hazardous noise sources, but enforcement seems to be lenient. Noise laws and ordinances vary widely across the globe.

atmospheric noise, environmental noise, occupational noise