Articles, Conference and Workshop Papers Collection

Permanent URI for this collectionhttp://10.10.97.169:4000/handle/123456789/81

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Browsing Articles, Conference and Workshop Papers Collection by Subject "Africa"

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    Practices of E-Waste management among people living in African Cities: The case of Dar Es Salaam, Tanzania
    (Research Gate, 2025) Madaha Rasel Mpuya; Mwakatoga Joyce; Abdulbatswa Hassan; Kibonde Suma Fahamu; Respikius Martin; Sanga Camilius
    Rapid turnover in technology across the cities of the world creates a rapidly growing e-waste stream. This is the case for the city of Dar es Salaam in Tanzania. Currently, the city lacks the capacity for handling and recycling the hazardous materials contained in e-waste. Further, Tanzania has neither a specific policy nor a law on e-waste management. The paper focuses on e-waste management practices in Dar es Salaam. The key question is what are the practices of stakeholders in e-waste management in the city? This study was conducted in Ilala and Temeke municipalities in the city Participants for the study were purposively selected. The selection ensured the representation of key stakeholders in e-waste generation and management. The number of participants for key stakeholders was determined by the data saturation point, a point where no new information was obtained. To gain an in-depth understanding, several ethnographic methods were employed. Based, on the study findings, some of the practices on e-waste management in the city of Dar es Salaam include: storing e- waste, landfilling, reusing, selling, and recycling. Overall, the practices of e-waste management in the city of Dar es Salaam remain informal and hence lack any operational legal framework. Although the existing legal framework for the management of e-waste has the potential for operationalization, it has no clear guidelines or procedures. The authors are aware that the Tanzania Bureau of Standards (TBS) has developed operational standards for e-waste management. However, the operational standards remain inaccessible to other key Government entities, the public and other key stakeholders. One, including Government agencies, must pay to access them. The authors strongly recommend that the standards should be made available free of charge and be operationalized at all levels. The authors further recommend the development of suitable frameworks to deal with the management of e-waste, recycling, and circular economy.
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    Urban expansion and form changes across African cities with a global outlook: Spatiotemporal analysis of urban land densities
    (Journal of Cleaner Production, 2019-03-27) Xu, Gang; Dong, Ting; Cobbinah, Patrick Brandful; Jiao, Limin; Sumari, Neema S.; Chai, Baohui; Liu, Yaolin
    Africa has been experiencing rapid urbanization, yet limited studies have systematically investigated urban growth dynamics across African cities. Using 25 cities as cases, we quantified urban growth and form changes in Africa via spatiotemporal analysis of urban land densities in concentric rings over three time points (1990, 2000, and 2014). The results show that African cities have rapidly grown both in population and built-up areas, which increased by about 4% and more than 5% per annum, respectively. Urban land density (defined as the proportion of the built-up area to the buildable area) in each concentric ring decreases from the city center to the urban periphery with diverse patterns among cities. Comparatively, small cities have a lower urban land density and a more dispersed urban form than medium-sized and large cities in Africa. The international comparisons between cities with over one million population in Africa, Asia (e.g., China and India), Europe, and North America (i.e., the United States) reveal that African cities have a relatively less compact urban form. Implications of these findings for the future of African cities are further proffered.