https://journals.out.ac.tz/index.php/tjst/issue/feed TANZANIA JOURNAL OF SCIENCE AND TECHNOLOGY 2025-05-14T13:05:42+00:00 Prof. Matobola Joel Mihale out.tjst@gmail.com Open Journal Systems <p>Is a peer reviewed international journal that is biannually published in June and December by the Faculty of Science, Technology and Environmental Studies, The Open University of Tanzania (OUT). <em>Tanzania Journal of Science and Technology </em>will publish peer reviewed, high quality and original scholarly research, short communications, research notes and review articles in all areas of, but not limited to, environmental sciences, mathematics, physics, chemistry, biology, computer sciences, agricultural sciences, engineering, biological sciences, natural products, energy resources, food sciences, ethnobotany, nutrition, modelling, environmental chemistry, information and communication technologies, information technologies, wildlife and nature conservation, climate change, biosciences, biotechnology, bioinformatics, biogeochemistry and bioengineering.</p> https://journals.out.ac.tz/index.php/tjst/article/view/1589 The role of Fruit and Vegetable Consumption in preventing Obesity among Adolescents in Ilala Municipality in Dar es Salaam 2025-05-14T12:54:50+00:00 Anett Matekere elinamaseta2@gmail.com Elina J Maseta elinamaseta2@gmail.com 2025-05-14T00:00:00+00:00 Copyright (c) 2025 https://journals.out.ac.tz/index.php/tjst/article/view/1590 Fire Disaster Preparedness and First Aid to Fire Burn Victims: A Case of Primary Schools in Morogoro Municipal and Mvomero District, Tanzania 2025-05-14T13:02:17+00:00 Salumu Athumani asalumu12@gmail.com Josephat Saria asalumu12@gmail.com <p><em>The rising number of fire incidents, resulting in injuries and fatalities, has raised public concern regarding fire outbreaks in schools. This study aimed to evaluate the level of fire disaster preparedness among primary school students at Morogoro municipal and Mvomero district. The research methodology is based on an empirical quantitative approach, using surveys as data collection instruments. The survey employed structured questionnaires consisting of closed-ended questions to elicit responses from pupils and to gain insights into their awareness, knowledge and attitude. The data was analyzed using the Statistical Package for the Social Sciences (SPSS) software. The findings revealed that majority of respondents, 287(73.8%), were aware that fire accidents can occur within the school premises. Furthermore, 290(74.6%) acknowledged that fire outbreaks can cause damage to properties, including homes, schools, and marketplaces. Interestingly, a majority of participants, 322(82.5%), expressed a belief that they have limited ability to prevent fire incidents due to the absence of fire training in schools. The study concludes that while a majority of respondents, 316 individuals (81.2%), understand the adverse impact of wildfires on the environment, the local community remains a source of environmental destruction. The study findings emphasize the strong recommendation for prioritizing public education on fire prevention, emphasizing its significant importance. It is crucial to integrate fire prevention education into the school curriculum as a proactive measure. It is essential to provide training to the school community, including both students and parents, on the appropriate actions to take in the event of a fire outbreak. The training should cover specific steps tailored to different types of fires, ensuring preparedness and safety measures are in place.</em></p> 2025-05-14T00:00:00+00:00 Copyright (c) 2025 https://journals.out.ac.tz/index.php/tjst/article/view/1591 Assessment of Human Health Risks Emanating from Underground Water Quality Based on Selected Physicochemical Parameters 2025-05-14T13:05:42+00:00 Yohana Charles Msangula josephat.saria@out.ac.tz Josephat Alexander Saria josephat.saria@out.ac.tz <p><em>This study was designed to assess groundwater pollution from four borehole samples commonly used at Kibaha district informal settlements. This was achieved using grab sampling with three replications. The samples were tested for physicochemical groundwater quality. The maximum temperature was recorded at Msufini borehole sample, reaching 28.81ºC, while the minimum temperature was observed at Kikongo, registering 26.31ºC. There were variability pH levels, with mean values ranging from 6.55 at Msufini/Boko Kibaoni to 7.21 at Ruvu Darajani. The lowest mean total hardness was found at Boko Kibaoni borehole samples (24.14 ± 2.48 mg/L), whereas the highest was detected at Ruvu Darajani borehole samples (147.20 ± 1.01 mg/L). The highest nitrate concentration, reaching 3.85 mg/L, was observed at the Ruvu Darajani borehole sample, while phosphate concentrations ranged from 0.02 to 2.41 mg/L at the Kikongo and Ruvu Darajani boreholes, respectively.The Hazard Index (HI) via oral intake for adults ranged from 44.8 at Kikongo to 3,447.1 at Ruvu Darajani, while for children, it varied from 44.8 to 5,389.0 at Kikongo and Ruvu Darajani, respectively. A high Hazard Index for both adults and children via oral intake signals a notable risk to human health, warranting prompt action to mitigate exposure and address contamination sources. This may entail implementing water treatment measures to borehole water sources, enhancing wastewater management practices, and enforcing regulations to safeguard the safety of borehole drinking water supplies.</em></p> 2025-05-14T00:00:00+00:00 Copyright (c) 2025