An Assessment Of Noise Pollution In Addis Ababa The Case Of Bole Michael Community Area

Noise causes adverse effect on human health, deteriorates environment and diminishes the value ofrnproperty. Thus, this study aimed to survey different sources of noise pollution giving particularrnemphasis to religious institutions’ loudspeaker and impulsive sound amplifier and night clubs livernmusical beat in the midnight. Though there are five zones in the study area i.e. Woreda 1 of Bolernsub-city, only two zones were selected for the study as these zones were densely populated havingrnmore than 10,000 or 50%of the woreda residents and highly exposed to noise pollution. A total ofrn120 participants in the study were selected by applying simple random sampling technique andrnpurposively. In order to attain the proposed objectives instruments like questionnaire, keyrninformants interview and FGDs were employed. To analyze the collected data both qualitative andrnquantitative methods were used. More specifically, quantitative data analyzed by using descriptivernStatistical Package for Social Science version whereas the qualitative data analyzed by narration.rnThe noise measurement was carried out using SPL, in dB.rnThe study findings indicated that the major four religious institutions that exist in survey domainrnreleased in a minimum average 71dB (A) and also a maximum average level reaches to bern87dB (A). In the same manner, the night clubs, bars and restaurants situated in the communityrnresidential area release minimum average 64dB(A)and maximum average accounts 84dB(A).rnThis result indicated that it was excessively high and above permissible limits of noise level asrncompared to (WHO, 1999) guidelines in community residential area to be at night 40dB andrnday time45 dB, in patient ward room 30 dB and in school classroom to be 35dB. This means thatrnthe noise level in the area is over legally limited noise level and this may cause profoundrnhealth effects on the residents and also this had been clearly confirmed by the majority of thernrespondents that they had been faced sleep disturbance, interference with spokenrncommunication and interruption in teaching-learning process in schools area.rnThe study identified that there is acted rule and regulation to protect the citizens from noisernpollution. But, Authority being reluctant to pay attention for the public outcry especially with thernreligion institution cases, lack of human, material and financial resources has contributed to somernextent. This means that the responsible body’s major problem to control noise level in thernresidential area is not a matter of law making; rather it is the problem of enforcement andrnimplementation the existing law. Therefore, noise level in the residential area should be controlledrnwith the full participation of different stakeholders so that the regulatory body needs to providerntraining and education to the community and raise the awareness of religious institutions tornminimize the level of noise or to implement noise suppressor technology. On the other hand, forrnnight clubs and bars, before grant license, Ministry of Trade has to set noise issue as one point ofrncriteria for authentication and issuance of license.rnKeywords: Sound, Noise, Noise pollution, sources of noise, effect of noise

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