Caractérisations physico-chimiques et bactériologiques pour l'évaluation de la qualité des eaux souterraines de la vallée du moyen Ziz (Errachidia Sud-Est du Maroc)

Mehdaoui, Radouan; Mili, El Mostafa; Mahboub, Abderrahman

doi:10.1051/lhb/2019054

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…The evaluation of groundwater quality involves the examination of pollution parameters (Mehdaoui and Mahboub, 2019) and the interpretation of overall quality using a simplified grid (Nouayti, Khattach and Hilali, 2015) that includes pollution indicators (Dimane et al, 2017) such as physicochemical properties and ETM (elemental trace metal) concentrations. Table 1 presents results of the physico-chemical analysis and the concentrations of heavy metals.…”

Section: Groundwater Qualitymentioning

confidence: 99%

Assessment of heavy metal pollution in groundwater using a multivariate analysis approach

Sbai,

Tahri,

Hafiane

et al. 2024

Journal of Water and Land Development

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The current study aims to assess underground water pollution using an integrated approach that combines statistical methods such as principal component analysis (PCA) and water quality diagrams (Piper diagram, Schoeller– Berkalov diagram). A total of twenty water samples were collected from the Tiflet region in the Sebou basin and analysed for various physicochemical parameters, including temperature, pH, and heavy metal concentrations (Cu2+, Zn2+, Fe2+ and Pb2+). The average concentrations of Pb2+, Zn2+, Cu2+, and Fe2+ in the water samples were found to be 41.9, 14.8, 20.1, and 8.1 mg∙dm–3, respectively. These concentrations indicate a significant presence of heavy metals in the groundwater samples. Therefore, it can be concluded that the groundwater in this area is heavily polluted with heavy metals and other pollutants. This finding raises concerns regarding the use of this water for irrigation and agricultural activities in the region. This suggests that these four components play a crucial role in determining the overall water quality. The distribution patterns of the metals Pb2+, Zn2+, Cu2+, and Fe2+ in the well water within the study area are of particular environmental concern. It is recommended to establish a monitoring network to ensure the sustainable management of water resources in order to address this issue effectively.

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Section: Groundwater Qualitymentioning

confidence: 99%

Assessment of heavy metal pollution in groundwater using a multivariate analysis approach

Sbai,

Tahri,

Hafiane

et al. 2024

Journal of Water and Land Development

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“…The deterioration of groundwater quality by anthropogenic and geological pollution is proved by several studies on the evaluation of the physico-chemical and bacteriological groundwater quality (Mehdaoui et al, 2019;Benyoussef et al, 2021). Groundwater vulnerability is well demonstrated in the study mapping groundwater pollution risks in parts of the Hail region of Saudi Arabia (Ahmed et al, 2018).…”

Section: Bacteriological Water Qualitymentioning

confidence: 99%

Groundwater Quality Assessment for Human Drinking in Rural Areas, Al-Hoceima Province (Northern Morocco)

Mchiouer¹,

Boughrous²,

Ouarghi³

2022

Ecol. Eng. Environ. Technol.

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The aim of this study is to assess the quality of water for drinking in the rural area of the city of Al-Hoceima, in order to measure the health risks to which people who use it for their needs are exposed. A cross-sectional, descriptive, and analytical study was carried out on 60 households selected randomly. Well and spring water samples (8 wells and 8 springs) were collected in November and December 2019 and analyzed according to the standard methods of water analysis. The survey indicated that water consumed by 80.00% of households does not receive any prior treatment. With the lack of a collective excreta and wastewater management system in the municipality, 99.00% of households have latrines, 50.00% of which are installed within 15meters of the water source. The bacteriological analyses indicate that all the sampled points are contaminated by fecal contamination germs. This poor quality may be due to various anthropogenic activities, and the presence of non-standardized septic tanks. Therefore, protecting and improving water sources must be accompanied by adequate measures of disinfection of these waters before their use.

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“…domestic waste [10,11]. Additionally, Mehdaoui et al highlighted the deterioration of groundwater quality in the Middle Ziz Valley, southeastern Morocco, which is attributed to both geological and anthropogenic factors [12]. Moreover, Morocco has many uncontrolled landfills near cities that emit pollution every day.…”

Section: Introductionmentioning

confidence: 99%

Impact assessment of the effects of the former uncontrolled landfill of Sidi Yahya Oujda (Morocco) on groundwater using physicochemical, geological and electrical triple approaches

Arabi,

Chaïeb,

Khattach

et al. 2024

E3S Web Conf.

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This study is part of the geophysical mapping of the former site of the uncontrolled Sidi Yahya Oujda landfill. It also aims to show the contribution of the integrated interpretation of geological and geophysical data in the diagnosis of illegal dump sites. The application was made on the rehabilitated site of the former uncontrolled Oujda landfill located in Sidi-Yahya, which was closed in 2005. Geological and geophysical studies by electrical resistivity tomography (TRE) were carried out at the site level. Nine 475 m long TRE profiles with an investigation depth of up to 110 m were generated to image the subsoil. Analysis of the physicochemical and metallic composition of the leachate from this site and the groundwater taken from 3 nearby wells revealed significant pollution of the leachate with a COD of 12780 mg. O2/L and a BOD5 of 525.34 mg. O2/L. The groundwater had high electrical conductivity (average of 3.9 mS/cm), chloride content (710 mg/L average) and nitrate content (74.62 mg/L average). The metal concentrations in the leachate and groundwater far exceeded the Moroccan standards, with high average values for zinc (619.22 μg/L), copper (318.12 μg/L), nickel (233.76 μg/L), chromium (169.16 μg/L), L) and iron (12940 μg/L). Geologically, a context was highlighted with lateral lithological variations and the presence of faults. The waste/leachate layer has low resistivity values (<10 Ω m) and a thickness of up to 25 m. It rests on terrains of different geological natures. In the southern part of the site, there is a layer of red clay with a thickness of up to 50 m and low resistivities (<10 Ω m), which overlies a layer of limestone with high resistivity values (>100 Ω m). In the northern part, we encounter a discontinuous and thin layer of fractured dolomites with resistivities greater than 50 Ω m. This layer of dolomite rests on a layer of clays.

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Caractérisations physico-chimiques et bactériologiques pour l'évaluation de la qualité des eaux souterraines de la vallée du moyen Ziz (Errachidia Sud-Est du Maroc)

Cited by 7 publications

References 3 publications

Assessment of heavy metal pollution in groundwater using a multivariate analysis approach

Assessment of heavy metal pollution in groundwater using a multivariate analysis approach

Groundwater Quality Assessment for Human Drinking in Rural Areas, Al-Hoceima Province (Northern Morocco)

Impact assessment of the effects of the former uncontrolled landfill of Sidi Yahya Oujda (Morocco) on groundwater using physicochemical, geological and electrical triple approaches

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