Sound pressure level (SPL) of Al-Karkh University of Science second campus (Abo-Greab)/ Iraq

Abstract

Noise pollution become one of the health risk pressure due to nature of impacts on psychological behavior. Thus our study aim to estimate the sound pressure level SPL in different university building in the second campus (Abo-Greab) of Al-Karkh University of Science. For this purpose Sound level Meter type: Auto Range Ds-102 and the L_min and L_max was estimate. We chase randomly Seven location at three day time; then we selected tow conditions: 1- Without operation of the electrical generator 2- With operation of the electrical generator. The study result show tow group of result due to the sound emerge by operation of the electrical generator, the first group recording the highest SPL was detected in site 5 (passageway) reaching (78 dB); while the lowest was (41 dB) in the site 2 (staff room). When the electrical generator started the sound level up significantly to het (98 dB) in site 6 (The garden), while the site 2 (staff room) stay away due to the distance recording (45 dB). Some of the study site were noisily polluted in sometimes according to the standard noise level of EPA (Environmental Protection Agency); While, the WHO adopted (85 dB) as critical threshold between the safe sound level and the sound noise pollution, which risking human health. Our study shading the light on one of the update environmental issues and submit some advices to decrease the noise level to be safe for the university campus.