Publications by authors named "Bealemlay Abebe Melake"

Background: Despite its significant application, DDT and its metabolites pose a potential threat to the environment. Therefore, data on environmental and health concerns must thus be investigated.

Objective: The objective of this study was to assess the environmental and human health risks posed by DDT and its metabolites in Ethiopian surface waters.

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Background: Indoor air pollution, including airborne microorganisms, can cause allergies, respiratory diseases, and immune-toxic diseases. Sneezing generates millions of airborne microbial infections, and ventilation sources alter microbial communities. Few studies exist in developing countries, including Ethiopia, and Harar Town.

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Background: Bacterial indoor air load refers to the level of bacteria within and around dwellings and other structures. Pathogens, bacterial cell fragments, and bacterial organisms' byproducts can all pose major issues indoors, especially in prison inmate cells. However, there is lack of data on bacterial load and contributing factors in the East Hararghe zone and Harari regional state.

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Metals and metalloids pollution of Ethiopian surface water is becoming an environmental issue. Bioaccumulation and Biota-Sediment Accumulation Factor (BAF and BSAF) are used to quantify the bioaccumulation of contaminants from water and sediment to biota. The present study aimed to determine the BAF and BSAF of metals and metalloids in different surface waters of Ethiopia.

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Background: According to the literature analysis, the majority of the studies focused primarily on public health institutions. Although assessing the compliance of healthcare workers in private and public institutions would give comprehensive evidence on existing problems and appropriate prevention method, as a result, research on adherence to standard precautions are still required. Rely on existing research, to the best of the investigator's knowledge, compliance with standard precautions in hospitals of Bahir Dar town has not been assessed.

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Article Synopsis
  • Findings show that while some metals were detected in samples, concentrations of As, Cd, Cr, Cu, Ni, Pb, and Zn in water were below harmful levels for aquatic life, though sediment showed higher levels of certain metals with potential toxicity.
  • The study indicates no health risk from consuming fish from the lake, as the concentration of metals in fish did not exceed safe levels, and certain metals were better retained in fish liver than muscle.
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Due to their global distribution, persistence, bioaccumulative potential and toxicity, perfluoroalkyl substances (PFASs) are considered as hazardous chemicals. Although many studies on PFASs pollution in aquatic environments have been done in the Northern hemisphere, less is known on PFASs pollution in African aquatic ecosystems and the risks they pose to humans through consumption of contaminated biota. The objective of this study was to determine the spatial distribution of PFASs in water, sediment, and fish tissue in Lake Hawassa, Ethiopia, and to investigate possible human health risks due to fish consumption.

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