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Challenges to surface water quality in mid‐sized A frican cities: conclusions from A wetu‐ K ito Rivers in J imma, south‐west E thiopia
Author(s) -
Haddis Alemayehu,
Getahun Tadesse,
Mengistie Embialle,
Jemal Amana,
Smets Ilse,
Bruggen Bart
Publication year - 2014
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12021
Subject(s) - urbanization , biochemical oxygen demand , geography , industrialisation , water quality , pollution , wastewater , population , environmental engineering , environmental protection , environmental science , water resource management , environmental planning , chemical oxygen demand , economic growth , environmental health , ecology , market economy , medicine , economics , biology
Rapid urbanization and industrialization, uncontrolled population growth, indiscriminate waste discharge and poor infrastructure are problems that A frican cities are facing. This paper describes an exemplary case study from J imma, south‐west E thiopia. A cross‐sectional study was conducted along the A wetu‐ K ito drainage system in Jimma town to assess the level of pollution from urban dwellers and related activities. The study indicates that the Environmental Protection Agency ( EPA ) norms for biochemical oxygen demand ( BOD ), dissolved oxygen ( DO ) and orthophosphates are not met downstream of the major industrial and institutional activities. Small‐scale industries, J imma U niversity and residential areas contributed 50, 15 and 23% pollution load on the river, respectively. It can be concluded that the pollution effect in J imma town is mainly as a result of the growing (uncontrolled) industrial activities and not to discharge of household wastewater. Given the same trends of urbanization and population growth, similar development (socio‐economic) indicators and similar climatic conditions, the key findings for J imma are transferable to other mid‐sized A frican cities.