One another air pollutant which required serious concern is noise. Any sound become noise if it becomes disturbing. Noise is derived from latin term “nausea” which means a feeling of disgust. Noise is unwanted or undesirable sound which may be pleasant to someone but may be extremely unpleasant to others, depending on a number of psychological factors . Even the sweetest music if disturbs a person who is trying to concentrate or sleep is noise to him just as the sound of a pneumatic riveting hammer is noise to nearly everyone . In other words, any sound may be noise if circumstances cause it to be disturbing. Encyclopaedia Britannica defines noise as “a sound of church bells may be music to some and noise to others. Usually noise is a mixture of many tones combined in a non-musical manner”