Experimental study of tractor noise effects on human being heath

Abstract

An experimental study of the noise effects of tractors on the workers and the students health have been held . The study took place near the agriculture college buildings by using tractor type Anter-71 for different tractor speeds, engine speed and blowing depth. It was shown that the sound level when moving near the buildings was up to 108 dB which is not the conveniencet level for students scientific performance while this level of sound will decrease to 88dB when training in the open farms away from the buildings. The blowing depth has an effect on the sound level up to 112 dB which is not convenient for normal hearing and becomes more dangerous when working for along time. Blowing with the wind direction eliminates about 20% of the sound level compared with blowing in reverse wind direction.