MEHBUBA AHMED, EKRAM JELALU, M. GOSA, B. SITOTAW^#

Department of Physics, Dire Dawa University, Ethiopia

The purpose of this work is to investigate the cause of the environmental noise pollution in the Kefera market and assess the noise pollution level. The data were collected for three consecutive days, from April 04 to 06/2019, in the morning and afternoon during 80 minutes. Data were collected every 5 seconds by moving to the center of the market from three different directions. The results revealed that the traffic noises were strongly time-dependent. The noises parameters were L₁₀, L₅₀, L₉₀, L_Aeq, L_D and L_NP, and determined the produced noise levels. Moreover, this work has tried to answer the main cause of noise pollution in the Kefera market and surrounding.

Key words: Noise pollution level, noise source, transient noise, market noise.

Corresponding author’s e-mail: belaysitotaw@gmail.com