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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1853

Title: Assessment of Drinking Water Quality and Pollution Profiles along Awetu stream (Jimma)
Authors: Israel, Deneke
Copyright: 2006
Date Added: 22-Dec-2008
Publisher: Addis Ababa University
Abstract: Water shortages, weak public utilities, and poor management of available water resources force the public to rely on poor quality water sources and supply practices that are often polluted, having significant health risks, welfare and financial losses. Furthermore, the quality of potable water and the threat of waterborne diseases are critical public health issues in many developing countries. Water quality assessments on downstream pollution profiles of rives and streams has been undertaken on different rivers and streams in Ethiopia. Nevertheless, majority of these studies concentrate on rivers and streams that are found near the capital, mostly in the Awash river basin. This, therefore, indicates that studies on the Omo-Ghibe river basin are lacking. Awetu stream which is part of the Omo-Ghibe basin is the primary source of water for a range of activities. On the other hand, deterioration of the quality of Awetu stream as a result of discharge of municipal wastes and urban runoff has been indicated. Shallow hand-dug wells that are used for drinking are large in number in Jimma town where, majority of them are equipped with pulley. A comprehensive investigation of the quality of drinking water sources particularly on hand-dug wells and tap water, and pollution profiles of Awetu stream encompassing physicochemical and bacteriological parameters is lacking. Therefore, this study aims to assess the quality of Awetu stream, hand-dug wells used for drinking purposes and tap water supplied to Jimma town based on physicochemical and bacteriological parameters and figure out if there are environmental and health risk associated with the use of these water sources. The result indicated that higher levels of BOD (4.1±1.5--17.5±3.2 mg/l) ;COD (16.7±5.65-- 53.7±38.8 mg/l) ;TSS 91.7±107.3--506.7±640 mg/l; Nitrate-Nitrogen (NO3-N) and Ammonia-Nitrogen (NH3-N) .12±2.01--18.0±8.74, 0.65±0.41-- 4.46±1.97 and 3.64±2.40-27.6±13.2 mg/l, respectively are responsible for the deterioration of the stream quality. Coliform bacteria, particularly, Fecal Coliform, are present in the stream at levels indicative of fecal pollution. They also exceed
Description: A Research submitted to Addis Ababa University School of Graduate Studies in Partial Fulfillment of the Degree of Masters of Science in Environmental Science
URI: http://hdl.handle.net/123456789/1854
Appears in:Thesis - Earth Sciences
Thesis - Earth Sciences

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