Environment, Poverty and Sustainable Development

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    Effects of Human Settlement and Activities on Water Resources in Morogoro region.
    (Mzumbe University, 2015) Semdoe, Mohammed S
    This study aimed at assessing the magnitude of the effects of human settlement and activities on water resources in line with the roles of IWRM Approach on ensuring equitable, economically sound, and environmentally sustainable management of water resources and provision of water services. The study objectives were specifically to assess the effects of human settlement and activities on water supply, water distribution, and water quality; the capacity of local institutions on water resources management, the effectiveness of fees system on water resources management, and the stakeholder’s involvement on planning water resources management. Both quantitative and qualitative data were collected and analyzed with the aid of Statistical Package for Social Sciences (SPSS). The study was conducted using cross sectional design where a total of 88 representative households were selected and interviewed. The study also involved two Focus Group Discussions to gather information necessary for in-depth analysis. The findings show that, the study area is dominated by agricultural activities as the main source of income. Human activities effects include; the problems in water supply, distribution, and quality which leads to slowing down of domestic and commercial activities; risk in drinking untreated water from open wells or surface waters; workload of women in the households becomes very heavy; too much time is wasted in search of water; of which only 40.9% of the respondents travel a short distance to access water services, also 31.8% of the respondents spent about 60 minutes in finding and fetching water for their families. Some water borne-diseases outbreak like diarrhea and cholera have been experienced in the study area. IWRM approach is not well rooted at village level, although few aspects of approach have been well implemented in the study area. Additionally, the study finds that; the National Water Policy (2002) is not much publicized to the local community; therefore, the local leaders in the study area especially at village and ward levels are not aware about the policy.
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    An assessment of high human population density and its impacts on land resources in Moshi district council, Tanzania
    (Mzumbe Unversity, 2013) Alphonce, Emmanuel
    This study attempted to assess the impacts of high human population density on land resources in Moshi District Council. Generally, other studies show that, developing countries experiencing the high demographic pressures while land resource to support the growth is fixed or limited and the mechanisms to adapt to, grow very slowly. Specifically, there is an extremely high human population density in areas around Kilimanjaro, especially in the Moshi District Council. This leads to land shortage that would be useful for agricultural production and infrastructure development, poor settlement planning, land use conflicts, land degradation, and serious environmental implications that can be linked to the increase of poverty level including lack of employment to the youth. This study used a case study design and sampling techniques based on purposive/non probability sampling and simple random sampling/probability sampling, while the sample size of a hundred respondents that was taken, was based on Nassiuma’s formula. The type and source of data were entirely on primary and secondary sources related to the study topic studied. The methods of data collection based on, written questionnaires/structured interview for key informants and field respondents, field observation of human settlement arrangement and cultivation areas. The documentary technique based on, written sources/secondary sources i.e. related reports, population census, books, and internet. Finally, the data were analysed and presented with descriptive statistics such as percentage, frequency, graphs and tables. This was done by using the Statistic Package for Social Science (SPSS) version 16. Microsoft Excel was used to produce charts and graphs and Microsoft Word was used in compiling and writing up the reports.
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    The effectiveness of community approach in solid waste management at household and street level in Tanzania : A case of Mbeya City Council
    (Mzumbe Unversity, 2013) Nguge, Josephine F.
    This study was conducted in Mbeya City Council to examine the effectiveness of the community approach in solid waste management at household and street levels. It aimed to identify the roles played by the community in the management of solid waste, the impact of the community involvement in the management of solid waste, factors affecting community participation in the management of solid waste and stakeholders’ views in improvement of the solid waste management. The study adopted a case study design, targeting the household and street levels in Mbeya City Council. A sample size of 65 respondents was drawn using purposive and systematic random sampling techniques. Questionnaires, interviews and observation were used to collect primary data while documentary review method was used to collect secondary data. Data collected were analyzed by using the Statistical Package for Social Sciences (SPSS) and Excel software and presented in tables, figures, and text. The findings revealed that the community approach in solid waste management at household and street level in Mbeya City Council is partially effective in consideration of Ghana, Mwakibete and Igawilo wards where 80 percent of the respondents are participating in collecting solid waste in waste bins at household level and then send them to the communal container (collection points) ready to be collected to the dump site, it is less effective at street level where only 20 percent of the respondents were paying for solid waste collection fee thus accumulation of solid waste at collection points. This has contributed to poor service provision on solid waste management by the city council. The study recommended that, education should continue to be given to the community so that they will understand the benefit to be obtained when solid wastes are well managed; urban local authorities should make faster decisions in involving community based organizations (CBOs) and private investors to help them in the solid waste provision services. Also enforce the existing bylaws so that everyone who generated waste has to manage them by having containers at their locality for collecting the solid waste and pay waste collection fee at street level thus reduced load to the city and ensure effective management at household and street level.
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    Community participation in solid waste management in Kigoma urban a case study of Kigoma ujiji municipality
    (Mzumbe University, 2013) Luvakule, Deogratius Gaston
    Achieving full and effective community participation in development activities is a hard task. However, it has been a key element to project development and sustainability. The inability of municipalities to handle the increasing amount of waste generated is a growing problem in many African cities. This study conducted in KigomaUjiji Municipality 2013, attempts to address the problem of solid waste management by looking at community participation on waste management issues. Solid waste in Kigoma Ujiji Municipality mostly are generated during the extraction of raw materials, processing of raw materials into intermediate and final products, consumption of final products, and other human activities such as agriculture, fishing, construction, demolition and carpentry. Different methods of waste disposal for example, dumping and land fill leads to attraction of vermin example rats and mice which harbours diseases, dumping generate leachate which contaminate underground water, production of gas (carbon dioxide and methane) which produce unpleasant odor, green house gases and kills surface vegetation. Plastic bags when thrown in the farm reduces filtration of water into the soil, leading to low fertility of soil and low agricultural production also harbor mosquitoes and other pathogenic organisms. Eruption of diseases such as malaria, typhoid, and cholera can occur, especially when the plastic bags obstructed sewage system. Plastic bags lose attraction of the area. Burning of waste material and dust from industries can cause respiratory problems and air pollution to people and all these problems can lead to climatic change/global warming. This study recommended best ways which can make the environment clean. People have to pay for collection and transportation of solid waste, the community has to change attitude and culture. In doing so, one day we would have a clean Municipality
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    An assessment of beach management units in combating illegal fishing in Lake Victoria, Tanzania: A case of Bukoba district
    (Mzumbe University, 2013) Kashililika, Edwin W.
    The study is about An Assessment of the Beach Management Units in combating illegal fishing with specific reference to Bukoba District. The aim of the study was to identify factors leading to ineffective performance of Beach Management Units in combating illegal fishing in Lake Victoria, Tanzania. Ninety six (96) respondents were interviewed using structured questionnaires also information collected from a fishery officials at District and Regional level by focused group discussion. Descriptive data were analyzed by the descriptive analysis method and SPSS 20 version and presented in frequencies. The findings revealed that the performance of the BMUs is poor because of, lack of boats for patrol (fishery patrol vessel), lack of source of revenue, difficult to get information about illegal fishing, BMUs leaders were found to be part of illegal fishing, also intimidation to BMUs’ leaders by big fishers who practiced illegal fishing and lastly voluntarism nature of work demoralizes the BMUs leaders to concentrate in combating illegal fishing. Given the above mentioned reasons fueling illegal fishing, this study recommends local and Central Government to support the BMUs to improve its performance to achieve the sustainable and equitable exploitation of fishery resources. The basic support recommended include: Adequate funds to support their operations including the purchase of the fishery patrol vessel, awareness raising/sensitization to local authorities and community living along Lake Victoria shores on the importance of these Community-Based Organizations in combating illegal fishing, the impact of illegal fishing and how to provide information to the BMUs leadership about illegal fishing
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    The effects of informal settlements on environmental management in Temeke municipality
    (Mzumbe University, 2013) Mwamhanga, Evaristo B.
    This study examined the effects of informal settlements on environmental management. Specifically, it aimed at identification of the socioeconomic effects of informal settlements on environmental management, examination of community role in environmental management in informal settlements and determination on the strategies that will improve environmental management in the study area. The study was conducted in Temeke Municipality and Keko ward in particular. Primary data were collected through structured questionnaires while secondary data were collected through interview. The study involved 102 respondents in which 95 were household respondents and 7 were key informants. Data collected were subjected to the Statistical Package for Social Science (SPSS), multiple response and Chi-square for analysis. The study findings revealed that, socioeconomic effects of informal settlements have contributed negatively to environmental management. It was found that community role was ineffective to manage environments in informal settlements. It was further disclosed that environmental education, provision of environmental infrastructure and implementation of bylaws were found to be appropriate strategies for better environmental management in Temeke Municipality. Based on the study findings, it is concluded that, the Temeke Municipality Council should prepare an effective municipal environmental policy to address environmental problems occurring in informal settlements. Strategies such as provision of environmental education, public and private sector partnership creation of dumping sites and adequate supply of facilities for environmental management through clearly organized programmes, plans and projects should be used to improve the sustainability of environmental resources at the household, Streets and Ward with an emphasis of reversing the negative effect of informal settlements on environmental resources. Finally, areas including environmental education and community participation in environmental management were suggested for further studies
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    Tanzania social action fund II implementation for the household socio-economic improvement: evidence from Arusha District, Tanzania
    (Springer International Publishing, 2023) Mamkwe, Claudia Edward; Genda, Elizabeth Lulu
    The Tanzania Social Action Fund (TASAF) II is a national poverty reduction initiative that focuses on addressing income poverty and the shortage of social services. The study was cross-sectional in design with a sample of 60 household heads and nine key informants. Data were collected using questionnaires and key informant interviews. The findings show that TASAF II investments improved household assets, access to clean and safe water, education, health, and created employment through investments in new projects. It was adjudged to be an excellent development project model and viewed as best practice for improving wellbeing of low-income households through participatory and empowerment approaches in which the poor are provided with non-monetary start-up capital to generate income. The Chapter recommends the formulation of policies that reflect the lived experiences of the poor by making them participate in their development processes while itself and NGOs, CSOs and the private actor remain facilitators.
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    Use of chicken manure extract for biostimulation and enhancement of perchlorate rhizodegradation in soil and water media
    (Taylor & Francis Online, 2007) Mwegoha, William J. S.; Mbuya, Odemari S.; Jai, Amita; Ugochukwu, Ngozi H.; Abazinge, Michael D.
    The influence of biostimulation using dissolved organic carbon (DOC) on rhizodegradation of perchlorate and plant uptake was studied under greenhouse conditions using soil and hydroponic bioreactors. One set of bioreactors planted with willow (Salix babylonica) plants was spiked with 300 mg L−1 DOC in the form of chicken manure extract, whereas a second set was not treated with DOC. A similar experiment without willow plants was run in parallel to the planted bioreactors. The planted soil bioreactors amended with DOC reduced perchlorate from 65.85 to 2.67 mg L−1 in 21 days for humic soil (95.95% removal) and from 68.99 to 0.06 mg L− 1 for sandy loam (99.91% removal) in 11 days. Nonplanted DOC treated soil bioreactors achieved complete perchlorate removal in 6 and 8 days for humic and sandy loam, respectively. Both planted and nonplanted soil bioreactors without DOC removed > 95% perchlorate within 8 days. Planted soil bioreactors respiked with perchlorate reduced perchlorate to nondetectable levels in 6 days. Hydroponics experiment amended with DOC reduced perchlorate from approximately 100 mg L− 1 to nondetectable levels within 7 to 9 days. Hydroponic bioreactors without DOC had low perchlorate removal rates, achieving 30% removal in 42 days. Leaf samples from sandy loam soil bioreactors without DOC had four times perchlorate phytoaccumulation than the DOC-treated plants. Similar results were obtained with the nonplanted bioreactors. Persistence of perchlorate in solution of planted hydroponic bioreactors without DOC amendment suggested that natural DOC from the plant exudates was not enough to biostimulate perchlorate reducing microbes. The hydroponic bioreactor study provided evidence that DOC is a limiting factor in the rhizodegradation of perchlorate.
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    The sustainability of groundwater in semi-arid regions: The case of Makutupora basin in Tanzania
    (IWA publishing, 2023) Mseli, Zaina Hussein; Said, Alfred; Sankaranna, Gaduputi; Mwegoha, William J. S.
    Groundwater sustainability ensures groundwater development and uses to meet current and future needs without causing unacceptable environmental, economic, or social consequences. In semi-arid regions, water resources are typically limited, and water management is critical to ensure a sustainable water supply. Groundwater sustainability indexing is vital for groundwater management. The study used four indicators in six dimensions, i.e., quantitative and qualitative hydrogeology, environmental, social-economic, and political factors, to evaluate the sustainability of the aquifer in Makutupora basin, Dodoma, Tanzania. The resulting aquifer sustainability index is 0.59, with a 95% confidence interval between 0.3856 and 0.7944, showing that the aquifer is sufficiently sustainable. The hydrogeological analysis revealed that groundwater sustainability is promising, although groundwater use per capita is alarming. This study also recommends effective water management strategies, including improving water use efficiency, promoting water conservation, implementing policies to limit water withdrawals, and promoting alternative water sources such as recycled wastewater, especially for agricultural activities.
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    Heavy metals accumulation in vegetables grown along the Msimbazi River in Dar es Salaam, Tanzania
    (African Journals Online (AJOL), 2010) Kihampa, C; Mwegoha, William J. S.
    Concentrations of cadmium, copper, chromium and lead was determined in four different edible vegetables namely Amaranthus blitum, A. gangeticus, Ipomea batata and Cucurbita maxima grown at four different sites along the contaminated Msimbazi River, Dar es Salaam, Tanzania. Analyses of these heavy metals were conducted using Atomic Absorption Spectrophotometry. Results obtained indicate that the concentrations of heavy metals range from below detection limit to 0.53, 0.14 to 29.08, 0.76 to 17.69, and below detection limit to 39.69 mg/100 g for cadmium, chromium, copper and lead, respectively. With exception to Ipomea batata, other vegetables contained at least two types of heavy metals with high concentrations beyond the permissible values recommended by FAO and WHO for human consumption. Concentrations of cadmium were within the acceptable limits for human consumption in all the vegetables investigated. This work, thus, seeks to provide information on levels of toxic heavy metals in leaves of edible vegetables irrigated with water contaminated by industrial and other anthropogenic effluents, and grown in contaminated soils along the Msimbazi River. The information can be used for monitoring processes to prevent excessive build-up in the food chain.