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Investigating the Current Level of Heavy Metals and Physico-Chemical Parameters in Water of Lake Ziway, Oromia Region - Ethiopia

Received: 8 August 2022    Accepted: 5 September 2022    Published: 19 September 2022
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Abstract

Background: Pollution from a single, easily identifiable source, such as an industrial facility or sewage treatment plant, is referred to as point-source pollution. Nonpoint-Source pollution is contamination that originates from multiple sources rather than just one. Lake Ziway is one of the Ethiopian Rift Valley lakes that have been impacted by both anthropogenic and natural activities. Large-scale projects, domestic waste influents, pesticide use that wasn't foreseen, industrial and domestic wastes, etc. are a few of the factors contributing to the pollution. Objective: The goal of this study was to determine the current concentrations of a few specific heavy metals and physicochemical components in the water of Lake Ziway (Ethiopia) as a result of point and nonpoint influent discharges. Method: The physico-chemical parameters including electrical conductivity, total dissolved solids, pH, turbidity, ammonia, nitrites, nitrates, phosphates, sulfates, and total hardness were investigated using the Palin test photometer, while the Cr, Pb, and Ni concentrations in collected water samples were determined using the Flame Atomic Absorption Spectroscopy (FAAS). Result: Phosphorus, turbidity, chemical oxygen demand, biochemical oxygen demand, magnesium, calcium, chromium, lead, and nickel are just a few of the parameters that were over the standard limit values at location "A", and they are also revealed to be above the standard limit values at site "B" and site "C" chromium, nickel, and zinc requirements are higher than recommended by WHO standards. Conclusion: In this article we investigated the levels of some heavy metals, i.e. chromium, lead, nickel, Zinc and physicochemical paramters including BOD, COD, PH, total dissolved solids, turbidity, nitrates, phosphates, and total hardness. The expansion of large-scale investment projects, such as irrigation-based agricultural development activities, floriculture industries, unplanned use of agrochemicals, domestic waste influents from Ziway/Batu town, and rivers like the Meki Rivers in Meki town (about 30 km far from Ziway) that flow into Lake Ziway carry contaminated discharge from industrial and domestic sources, are currently putting pressure on Lake Ziway.

Published in Modern Chemistry (Volume 10, Issue 3)
DOI 10.11648/j.mc.20221003.13
Page(s) 86-92
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Biochemical Demand, Meki River, Heavy Metals, Lake Ziway, Palint Test, East Shoa

References
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[3] M. Mulugeta, R. Sahilu, Z. Kibret & Mihret Mersha, (2020), Level of Contamination in Lakes and Rivers of Ethiopia: An overview, Arabian journal of chemical and environmental research 2, pp: 158-174.
[4] LB Merga, AA Mengistie, JH Faber & PJ Van den Brink (2020), Trends in chemical pollution and ecological status of Lake Ziway, Ethiopia: A review focusing on nutrients, metals and pesticides, African Journal of Aquatic Science, pp. 387-400.
[5] Gebremariam Z. (2002): The Ethiopian Rift Valley Lakes. Major threats and strategies for conservations. In tudorancea Ethiopian rift valley, Euro net 259-271.
[6] Jansen, H. C. &Harmsen, J. (2010): Pesticide monitoring in the central rift valley 2009-2010.
[7] Anteneh, B. (2013): The human impacts of flower farm development in the Ethiopian Rift Valley region. Doctoral thesis, University College Cork.
[8] Abiy Sahle and Jose Potting, (2013): Environmental life cycle assessment of Ethiopia rose cultivation, science of the total environment, Vol. 443, p. 167.
[9] AbaynehTilahun (2013), Environmental impacts of floriculture industry in Debrezeit town: A need for strategic environmental assessment, MSc Thesis, Environmental planning and landscape design, graduate study in environmental planning and landscape design, faculty of technology, Addis Ababa University, Ethiopia.
[10] Zenebe Yifru. (2011). Accumulation of certain heavy metals in Nile Tilapia (Oreochromisniloticles) fish species relative to heavy metal concentrations in the water of Lake Hawassa. M.Sc. Thesis, Addis Ababa University, Ethiopia.
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[16] WHO, (2011), Guidelines for Drinking-Water Quality, Geneva, Switzerland, 4th edition.
[17] M. D. Tomer and schilling (2009): A simple approach to distinguish land use and climate effect on water shed hydrology.
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[19] Carpenter, S. R., Caraco, N. F., Correll, D. L., Howarth, R. W., Sharpley, A. N., and Smith, V. H. (1998). Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecol. Appl. 8, 559-568.
[20] Islam, A. R. M. T., Islam, H. M. T., Mia, M. U., Khan, R., Habib, M. A., Bodrud-Doza, M., et al. (2020). Co-distribution, possible origins, status and potential health risk of trace elements in surface water sources from six major river basins, Bangladesh. Chemosphere 249, 126180.
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    Tefera Wakuma, Adelew Estifanos, Melaku Zigde. (2022). Investigating the Current Level of Heavy Metals and Physico-Chemical Parameters in Water of Lake Ziway, Oromia Region - Ethiopia. Modern Chemistry, 10(3), 86-92. https://doi.org/10.11648/j.mc.20221003.13

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    ACS Style

    Tefera Wakuma; Adelew Estifanos; Melaku Zigde. Investigating the Current Level of Heavy Metals and Physico-Chemical Parameters in Water of Lake Ziway, Oromia Region - Ethiopia. Mod. Chem. 2022, 10(3), 86-92. doi: 10.11648/j.mc.20221003.13

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    AMA Style

    Tefera Wakuma, Adelew Estifanos, Melaku Zigde. Investigating the Current Level of Heavy Metals and Physico-Chemical Parameters in Water of Lake Ziway, Oromia Region - Ethiopia. Mod Chem. 2022;10(3):86-92. doi: 10.11648/j.mc.20221003.13

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  • @article{10.11648/j.mc.20221003.13,
      author = {Tefera Wakuma and Adelew Estifanos and Melaku Zigde},
      title = {Investigating the Current Level of Heavy Metals and Physico-Chemical Parameters in Water of Lake Ziway, Oromia Region - Ethiopia},
      journal = {Modern Chemistry},
      volume = {10},
      number = {3},
      pages = {86-92},
      doi = {10.11648/j.mc.20221003.13},
      url = {https://doi.org/10.11648/j.mc.20221003.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.mc.20221003.13},
      abstract = {Background: Pollution from a single, easily identifiable source, such as an industrial facility or sewage treatment plant, is referred to as point-source pollution. Nonpoint-Source pollution is contamination that originates from multiple sources rather than just one. Lake Ziway is one of the Ethiopian Rift Valley lakes that have been impacted by both anthropogenic and natural activities. Large-scale projects, domestic waste influents, pesticide use that wasn't foreseen, industrial and domestic wastes, etc. are a few of the factors contributing to the pollution. Objective: The goal of this study was to determine the current concentrations of a few specific heavy metals and physicochemical components in the water of Lake Ziway (Ethiopia) as a result of point and nonpoint influent discharges. Method: The physico-chemical parameters including electrical conductivity, total dissolved solids, pH, turbidity, ammonia, nitrites, nitrates, phosphates, sulfates, and total hardness were investigated using the Palin test photometer, while the Cr, Pb, and Ni concentrations in collected water samples were determined using the Flame Atomic Absorption Spectroscopy (FAAS). Result: Phosphorus, turbidity, chemical oxygen demand, biochemical oxygen demand, magnesium, calcium, chromium, lead, and nickel are just a few of the parameters that were over the standard limit values at location "A", and they are also revealed to be above the standard limit values at site "B" and site "C" chromium, nickel, and zinc requirements are higher than recommended by WHO standards. Conclusion: In this article we investigated the levels of some heavy metals, i.e. chromium, lead, nickel, Zinc and physicochemical paramters including BOD, COD, PH, total dissolved solids, turbidity, nitrates, phosphates, and total hardness. The expansion of large-scale investment projects, such as irrigation-based agricultural development activities, floriculture industries, unplanned use of agrochemicals, domestic waste influents from Ziway/Batu town, and rivers like the Meki Rivers in Meki town (about 30 km far from Ziway) that flow into Lake Ziway carry contaminated discharge from industrial and domestic sources, are currently putting pressure on Lake Ziway.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Investigating the Current Level of Heavy Metals and Physico-Chemical Parameters in Water of Lake Ziway, Oromia Region - Ethiopia
    AU  - Tefera Wakuma
    AU  - Adelew Estifanos
    AU  - Melaku Zigde
    Y1  - 2022/09/19
    PY  - 2022
    N1  - https://doi.org/10.11648/j.mc.20221003.13
    DO  - 10.11648/j.mc.20221003.13
    T2  - Modern Chemistry
    JF  - Modern Chemistry
    JO  - Modern Chemistry
    SP  - 86
    EP  - 92
    PB  - Science Publishing Group
    SN  - 2329-180X
    UR  - https://doi.org/10.11648/j.mc.20221003.13
    AB  - Background: Pollution from a single, easily identifiable source, such as an industrial facility or sewage treatment plant, is referred to as point-source pollution. Nonpoint-Source pollution is contamination that originates from multiple sources rather than just one. Lake Ziway is one of the Ethiopian Rift Valley lakes that have been impacted by both anthropogenic and natural activities. Large-scale projects, domestic waste influents, pesticide use that wasn't foreseen, industrial and domestic wastes, etc. are a few of the factors contributing to the pollution. Objective: The goal of this study was to determine the current concentrations of a few specific heavy metals and physicochemical components in the water of Lake Ziway (Ethiopia) as a result of point and nonpoint influent discharges. Method: The physico-chemical parameters including electrical conductivity, total dissolved solids, pH, turbidity, ammonia, nitrites, nitrates, phosphates, sulfates, and total hardness were investigated using the Palin test photometer, while the Cr, Pb, and Ni concentrations in collected water samples were determined using the Flame Atomic Absorption Spectroscopy (FAAS). Result: Phosphorus, turbidity, chemical oxygen demand, biochemical oxygen demand, magnesium, calcium, chromium, lead, and nickel are just a few of the parameters that were over the standard limit values at location "A", and they are also revealed to be above the standard limit values at site "B" and site "C" chromium, nickel, and zinc requirements are higher than recommended by WHO standards. Conclusion: In this article we investigated the levels of some heavy metals, i.e. chromium, lead, nickel, Zinc and physicochemical paramters including BOD, COD, PH, total dissolved solids, turbidity, nitrates, phosphates, and total hardness. The expansion of large-scale investment projects, such as irrigation-based agricultural development activities, floriculture industries, unplanned use of agrochemicals, domestic waste influents from Ziway/Batu town, and rivers like the Meki Rivers in Meki town (about 30 km far from Ziway) that flow into Lake Ziway carry contaminated discharge from industrial and domestic sources, are currently putting pressure on Lake Ziway.
    VL  - 10
    IS  - 3
    ER  - 

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Author Information
  • Department of Chemistry, College of Natural and Computational Sciences, Hawassa University, Hawassa, Ethiopia

  • Department of Chemistry, College of Natural and Computational Sciences, Hawassa University, Hawassa, Ethiopia

  • Department of Chemistry, College of Natural and Computational Sciences, Hawassa University, Hawassa, Ethiopia

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