Institute of Development Studies

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    Assessment of surface water quality near municipal solid waste dumping facility in Bukoba, Kagera Region, Tanzania
    (Wiley Online LIbrary, 2023) Lema, Meserecordias W. J.; Mwegoha, William J. S.
    Water samples were collected from River Kanoni which passes near a municipal solid waste (MSW) dumping facility in Bukoba Town, Kagera Region, United Republic of Tanzania. The objective of the study was to assess surface water pollution caused by a MSW dump. Selected physico-chemical parameters (pH, temperature, Electrical Conductivity [EC], and Total Dissolved Solids [TDS]), nutrient levels, as well as heavy metals concentrations (Pb, Zn, Cu, Cr, Cd) were analyzed in the laboratory at the University of Dar es Salaam, in accordance with standard methods, and were compared with the existing standard limits for freshwater qualities, as stipulated by WHO and US-EPA. Results have shown that pH values were within the allowable range of between 6.5 and 8.5, except for one value (8.82 ± 0.11) that was measured at the midstream. Temperature values were between 26.28 ± 1.02°C and 28.35 ± 0.15°C, which are within the allowable range of between 20°C and 50°C. EC values were between 262.50 ± 8.32 μS/cm and 345.01 ± 6.48 μS/cm, which are below the maximum allowable value of 400 μS/cm. TDS values were between 183.75 ± 6.55 mg/L and 241.51 ± 11.33 mg/L, which are below the maximum allowable value of 500 mg/L. Nitrate levels were between 17.52 ± 1.12 mg/L and 32.00 ± 3.02 mg/L, which are above the standard limit of 10 mg/L above. Concentrations of Lead, Chromium, and Cadmium were between 0.03 ± 0.01 mg/L and 0.16 ± 0.05 mg/L, 0.55 ± 0.02 mg/L and 1.14 ± 0.07 mg/L, and 0.009 ± 0.12 mg/L and 0.098 ± 0.22, respectively, which are all above the recommended limits of 0.01, 0.05, and 0.003 mg/L, respectively. Values for copper and zinc were between 0.02 ± 0.12 mg/L and 0.20 ± 0.22 mg/L, and 0.79 ± 0.32 mg/L and 1.57 ± 0.04 mg/L respectively, which are below the recommended limits of 1.3 and 5 mg/L, respectively. This study has revealed that Bukoba MSW dumping facility has potential impacts on the water quality in River Kanoni, for domestic usage. This, therefore, demands all relevant authorities to immediately find a proper and sustainable replacement for the existing MSW dump in Bukoba town.
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    Contribution of sustainable street vending to municipal solid waste management in Tanzania: a case of Morogoro municipality
    (Mzumbe University, 2018) Apolo, Didas
    This study provides an over view on the contribution of sustainable street vending to the municipal solid waste management in Tanzania a case of Morogoro Municipality. The main objective of this study was to determine the contribution of sustainable street vending to municipal solid waste management in Tanzania. The specific objectives were to examine the perception of street vendors on municipal solid waste management in Morogoro Municipality, to assess strategies used by street vendors to mitigate solid waste production in Morogoro Municipality, to assess strategies used by the Municipal government to ensure Sustainable street vending for sustainable SWM in Morogoro Municipality and to determine street vendors involvement in solid waste management in Morogoro Municipality. Mixed methods research design was employed. Questionnaires, interview and observation methods were used in data collection. The study had a sample of 96 respondents from: street vendors, environmental officers, ward health officers and sweeper leaders. Probability and non-probability sampling were used in which quasi-simple random was used to obtain a sample of street vendors and purposive sampling was applied to obtain the key informants. Data were analyzed by using both quantitative and qualitative methods. Quantitative descriptive analysis was done using frequencies and percentage, while qualitative employed content analysis. The findings revealed that street venders were not willing to participate in municipal solid waste management due to their negative perception towards the municipal solid waste management. The majority of street venders were found to have low level of knowledge on solid waste management. They also, neither had ID nor license as a strategy that contributes to sustainable municipal solid waste management in Morogoro Municipality. The study findings contribute to the knowledge on how municipals can mobilize resources for sustainable solid waste management. The study recommended that knowledge on solid waste management should be provided to street vendors for the purpose of influencing them to participate in municipal solid waste management. Lastly municipal council should develop and implement well integrated solid waste management action plan by involving street vendors.