Environmental Health Science Research Papers/Topics

Effect of moisture content and temperature on viability, vigour and longevity of cordia sinensis lam. seeds in storage

Abstract: Cordia sinensis Lam. in the family Boraginaceae is a popular indigenous multipurpose tree species valued for fodder, fruit, structural timber and fuel wood. It is widely distributed in the arid and semi-arid lands (ASALs) of Kenya. Production of seedlings is through seeds. There are challenges acquiring viable and vigorous Cordia sinensis seeds for raising planting materials due to difficulties in post-harvest storage. In spite of the tree’s exceptional multipurpose qualities and...

MICROBIAL CONTAMINATIONS OF MEAT AND ASSOCIATED RISK FACTORS IN HARAR CITY, HARARI REGIONAL STATE, ETHIOPIA

Abstract: The consumption of raw meat has associated with cultural practices and widespread raw beef consumption habit that can be a potential source for food borne illnesses in Ethiopia. Therefore, the present study was intended to assess microbiological contamination and associated risk factors in Harari City, Harari Regional State, Ethiopia. A cross sectional study was employed where by a simple random sampling of Bucher shops (Groceries) in Harar City. The meat samples were collected ase...

MICROBIAL QUALITY OF DRINKING WATER AND HYGIENIC PRACTICES BY THE PEOPLE IN JAJA TOWN, EAST HARARGHE ZONE, OROMIA REGIONAL STATE, ETHIOPIA

Abstract: Water is one of the most valuable natural resources, an essential element for life development and human activities (Romeu-Álvarez et al., 2012). The generation of recent information about both the water quality status and sanitation condition is highly important for +intervention. Hence, this study was conducted to assess the quality of drinking water supplied to the residents of Jaja town at the point of water resources well, spring and tap water from January 2021 to June 2022. ...

Impact of Prosopis juliflora on Herbaceous Vegetation and Selected Soil Physico-Chemical Properties in Gabi-Rasu Zone, Afar Regional State, Ethiopia

Abstract: Prosopis juliflora has become serious woody weed in the fragile ecosystem of Ethiopia. In Afar Regional State, it has been affecting the livelihood of the community by aggressively and successfully invading the rangeland and outcompeting the indigenous herbaceous species. The aims of this study were to investigate the impacts of P. juliflora invasion on the composition, diversity and biomass production of herbaceous vegetation, on selected soil physico-chemical properties under its...

Assessment of indoor radon concentration levels in Serule, Botswana

Abstract: Discoveries of huge uranium deposits along the Letlhakane and Serule area in Botswana, led and motivated various researchers to investigate the long term effects of these discov eries. In addition to economic benefits, the possibility of environmental pollution is also high. This study assesses the indoor radon concentration levels in Serule area. Radon ( 222Rn) is of interest because, it is a daughter radionuclide of Radium-226 (226Ra) from the Uranium-238 (238U) decay series and ...

Spatial and temporal distribution of enteric viruses in wastewater and surface water

Abstract: Waterborne diseases, especially infectious diarrhoea, remain a public health concern particularly in developing countries where many lack access to safe clean water. The quality of water is assessed using bacterial indicators. However, they may not fully imitate the threat from other non-bacterial pathogens like enteric viruses. The aim of the study was to ascertain and establish the viral load, the seasonal and spatial distribution of rotavirus and norovirus (GI and GII) in sewage...

Factors Affecting Clinical Performance of Dental Therapy at Institute Of Health Sciences Gaborone

Abstract: This study was carried out to determine factors that affect the clinical performance of dental therapy students at the institute of health sciences in Gaborone. A quantitative descriptive research design with a cross-sectional survey was used with the aim of examining the factors affecting the clinical assessment of learners. A sample of 9 students were used to study. Attitudes were measured using a prepared questionnaire which was answered online. Two clinical assessment tools wer...

Mixed layer sub-tropical clayey soil-AMD percolation: analysis of permeation limits and breakthrough patterns

Abstract: The increasing population growth, depletion of natural recourses from mining and similar activities, and consequent insistent climate change have triggered diverse environmental challenges. It is well known that acid mine drainage (AMD) from mining operations in South Africa constitutes a serious environmental problem which requires heightened and crucial attention. The contamination threats from AMD presents a severe risk requiring prevention and mitigation measures for curbing co...

Performance evaluation of waste stabilisation ponds

Abstract: Waste stabilisation pond system has been used more especially in developing countries for sewage treatment. The objective of this study was to investigate the hydraulic and performance efficiency of Palapye waste stabilisation ponds. The hydraulic efficiency was evaluated through drogue, pond geometry and sludge accumulation assessment. The performance efficiency was evaluated through periodic sampling and analysis of physiochemical and bacteriological parameters of individual unit...

Accumulation of heavy metals and bacteriological indicators in spinach irrigated with further treated secondary wastewater

Abstract: Shortage of water for agriculture has resulted in the need to explore the use of wastewater for irrigation, however this can pose a health problem to the people emanating from the produced food as a result of the accumulation of pollutants. The purpose of this research was to investigate the accumulation of some heavy metals and bacteriological indicators in the different parts of spinach vegetable irrigated with secondary wastewater effluent treated through a pilot filtration syst...

Pesticide pollution in freshwater paves the way for schistosomiasis transmission

Abstract: Schistosomiasis is a severe neglected tropical disease caused by trematodes and transmitted by freshwater snails. Snails are known to be highly tolerant to agricultural pesticides. However, little attention has been paid to the ecological consequences of pesticide pollution in areas endemic for schistosomiasis, where people live in close contact with non-sanitized freshwaters. In complementary laboratory and feld studies on Kenyan inland areas along Lake Victoria, we show that pest...

National prevalence and risk factors for tungiasis in Kenya

Abstract: Background Tungiasis is a highly neglected tropical skin disease caused by the sand fea, Tunga penetrans, the female of which burrows into the skin, causing pain and itching. The disease occurs throughout South America and sub-Saharan Africa but there are few systematic data on national disease burdens. The tungiasis research community is keen to develop survey methods to fll this gap. Here we used a school-based, thorough examination method to determine the prevalence and risk fac...

Environmental Abundance of Anopheles (Diptera: Culicidae) Larval Habitats on Land Cover Change Sites in Karima Village, Mwea Rice Scheme, Kenya.

Abstract: A study was carried out at Karima Village in the Mwea Rice Irrigation Scheme in Kenya to assess the impact of rice husbandry and associated land cover change for mosquito larval abundance. A multi-temporal, land use land cover (LULC) classification dataset incorporating distributions of Anopheles arabiensis aquatic larval habitats was produced in ERDAS Imagine version 8.7 using combined images from IKONOS at 4m spatial resolution from 2005 and Landsat Thematic Mapper (TM)™ classi...

Multi-compartment chemical characterization and risk assessment of chemicals of emerging concern in freshwater systems of western Kenya

Abstract: Background: Within the last decades, there has been increasing research on the occurrence of chemicals of emerging concern (CECs) in aquatic ecosystems due to their potential adverse efects on freshwater organisms and risk to human health. However, information on CECs in freshwater environments in sub-Saharan countries is very limited. Here, we investigated the occurrence of CECs in snails and sediments collected from 48 sites within the Lake Victoria South Basin, Kenya, which have...

Can encroached rangelands enhance carbon sequestration in the African Savannah?

Abstract: Climate change and bush encroachment pose huge challenges to rangeland management in Namibia. These challenges require a holistic management approach that ensures consistent and optimum forage productivity and sustainability. Mechanical and chemical control methods are the most used techniques in controlling woody encroaching species to improve pastoral properties in the Namibian savannas. However, there is very little information regarding the management options that concurrently ...


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