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GROUNDWATER QUALITY ASSESSMENT USING WATER QUALITY INDICES AND GIS WITHIN THE OUED GUEBLI DOWNSTREAM SUBBASIN (COLLO PLAIN, NORTHEASTERN ALGERIA).

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Title: GROUNDWATER QUALITY ASSESSMENT USING WATER QUALITY INDICES AND GIS WITHIN THE OUED GUEBLI DOWNSTREAM SUBBASIN (COLLO PLAIN, NORTHEASTERN ALGERIA).
Authors: Mecibah, Ilyes1, Medjani, Fethi1, Zahi, Faouzi2 zahi_faouzi@yahoo.fr, Djidel, Mohamed1, Drouiche, Abdelmalek2, Labar, Sofiane3, Hamilton, C. Mei-Linq4
Source: Environmental Engineering & Management Journal (EEMJ). Apr2024, Vol. 23 Issue 4, p755-770. 16p.
Subject Terms: *Groundwater quality, *Water quality, *Water use, *Saltwater encroachment, *Water quality monitoring, Drinking water quality, Geographic information systems
Geographic Terms: Algeria
Company/Entity: World Health Organization
Abstract: Groundwater is the main source of drinking water for a number of towns in north-eastern Algeria located in the downstream subbasin of the Oued Guebli, namely the urban areas of Ouled Ma'zouz, Hadjria and Guergoura, which are facing a serious threat of groundwater deterioration due to various sources of contaminants. In this respect, the present work focuses on studying the groundwater hydrochemistry of the shallow aquifer within the Collo plain, identifying drinking water quality levels and observing spatial evolution by combining statistical indexing approaches with GIS mapping techniques. To this end, thirty (30) groundwater samples were taken and analysed for thirteen (13) physico-chemical parameters to evaluate water quality. The Entropy-weighted Water Quality Index (EWQI) model was selected to ascertain groundwater potability using the drinking water limits of World Health Organization (WHO). The EWQI mapping showed that 50% of the samples analyzed belong to the "good" water quality class (EWQI<100), 43% to the "fair" quality class (100150). This poor class is mainly located in the littoral zone to the north-west of the plain (Ouled Ma'zouz), where anthropogenic activities are concentrated, such as agricultural activities and untreated domestic discharges, as well as marine intrusion caused by overexploitation of the aquifer, are considered to have a much greater impact on groundwater quality in the study area. A strong positive correlation was recorded between the EWQI and EC, Na+, Cl-, NO3-, NH4+, NO2- and PO43- (R² >0.7), revealing that these elements strongly influence the EWQI values and are the elements responsible for the degradation of water quality in the study area. These results will help decision-makers to protect the groundwater of the Collo plain from degrading anthropogenic practices, and to ensure continuous monitoring of water quality and its sustainable management. [ABSTRACT FROM AUTHOR]
Copyright of Environmental Engineering & Management Journal (EEMJ) is the property of Environmental Engineering & Management Journal and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: GROUNDWATER QUALITY ASSESSMENT USING WATER QUALITY INDICES AND GIS WITHIN THE OUED GUEBLI DOWNSTREAM SUBBASIN (COLLO PLAIN, NORTHEASTERN ALGERIA).
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  Data: Groundwater is the main source of drinking water for a number of towns in north-eastern Algeria located in the downstream subbasin of the Oued Guebli, namely the urban areas of Ouled Ma&#39;zouz, Hadjria and Guergoura, which are facing a serious threat of groundwater deterioration due to various sources of contaminants. In this respect, the present work focuses on studying the groundwater hydrochemistry of the shallow aquifer within the Collo plain, identifying drinking water quality levels and observing spatial evolution by combining statistical indexing approaches with GIS mapping techniques. To this end, thirty (30) groundwater samples were taken and analysed for thirteen (13) physico-chemical parameters to evaluate water quality. The Entropy-weighted Water Quality Index (EWQI) model was selected to ascertain groundwater potability using the drinking water limits of World Health Organization (WHO). The EWQI mapping showed that 50% of the samples analyzed belong to the &quot;good&quot; water quality class (EWQI&lt;100), 43% to the &quot;fair&quot; quality class (100&lt;EWQI&lt;150), while around 7% of samples belong to the &quot;poor&quot; water quality class (EWQI&gt;150). This poor class is mainly located in the littoral zone to the north-west of the plain (Ouled Ma&#39;zouz), where anthropogenic activities are concentrated, such as agricultural activities and untreated domestic discharges, as well as marine intrusion caused by overexploitation of the aquifer, are considered to have a much greater impact on groundwater quality in the study area. A strong positive correlation was recorded between the EWQI and EC, Na+, Cl-, NO3-, NH4+, NO2- and PO43- (R&#178; &gt;0.7), revealing that these elements strongly influence the EWQI values and are the elements responsible for the degradation of water quality in the study area. These results will help decision-makers to protect the groundwater of the Collo plain from degrading anthropogenic practices, and to ensure continuous monitoring of water quality and its sustainable management. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Environmental Engineering &amp; Management Journal (EEMJ) is the property of Environmental Engineering &amp; Management Journal and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.30638/eemj.2024.059
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 755
    Subjects:
      – SubjectFull: Groundwater quality
        Type: general
      – SubjectFull: Water quality
        Type: general
      – SubjectFull: Water use
        Type: general
      – SubjectFull: Saltwater encroachment
        Type: general
      – SubjectFull: Water quality monitoring
        Type: general
      – SubjectFull: Drinking water quality
        Type: general
      – SubjectFull: Geographic information systems
        Type: general
      – SubjectFull: Algeria
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      – SubjectFull: World Health Organization
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      – TitleFull: GROUNDWATER QUALITY ASSESSMENT USING WATER QUALITY INDICES AND GIS WITHIN THE OUED GUEBLI DOWNSTREAM SUBBASIN (COLLO PLAIN, NORTHEASTERN ALGERIA).
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            NameFull: Medjani, Fethi
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              Text: Apr2024
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