Deafness, temporary or permanent, is one of the most prevalent effects of noise pollution. Mechanics, locomotive drivers, telephone operators etc all have their hearing impairment.
The first and foremost effect of noise is a decrease in the efficiency in working. Research has proved the fact that human efficiency increases with noise reduction.
Too much of noise disturbs the rhythms of working, thereby affecting the concentration required for doing a work. Noise of traffic or the loud speakers or different types of horns divert the attention, thus causing harm in the working standard.