The Study On The Effect Of Ultrasonic Noise On Human Body In The Case Of Etur Textile Factory In Adama town

Abstract

The study was carried out textile factory at Adama town Ethiopia. We studied ultrasonic noise problem and its effect on the workers. To achieve the goal of this study, noise levels were measured in working environment in five machines which are recycling, preparation, carding, knitting and finishing machines. We used sound level meter(modelYF-20).The measurement of noise level showed that around the re-cycling, carding and knitting machine, noise level was above permissible limit (85dBA), on the other hand the measurement of noise level in the preparation and finishing machines was blow permissible limit. The measurement of noise level showed that as distance increased from the source of noise, the measurement noise levels have decreased, as we have seen in our measurement of noise level in each machine. The quantity of noise level has not showed a significant at different duration of hour (at different length of time) and at the morning, at the noon and at the night at the same distance (point) in each machine. We recommended them to use ear protection