Tracking natural and human impact on sediment dynamics using radiometric approach in Oualidia lagoon (Morocco)

Mejjad, Nezha; Laissaoui, A.; Fekri, Ahmed; Hassen, Nour El Houda; Benmhammed, Ayoub; Hammoumi, Ouafa El; Benkdad, Azzouz; Amsil, Hamid

doi:10.1080/03067319.2020.1782394

Cited by 9 publications

(4 citation statements)

References 51 publications

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“…Some ratios show values <1 observed in the centre of the Sahel aquifer. The obtained results are in good accordance with the analysis done in the Oualidia lagoon sediments, where a strong enrichment of Strontium over calcium was reported in Mejjad 2020 [35]. The same findings were found in the groundwater of the Oualidia Sahel aquifer, where the examination of the rSr 2+ /rCa 2+ ratios have exhibited obvious contamination by evaporates (the Jurassic evaporate deposits); in KaidRassou 2005 [31]).…”

Section: Magnesium and Calciumsupporting

confidence: 87%

Assessment of groundwater quality using Physico-chemical analyses of Sahel-Doukkala region

et al. 2021

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Water quality preservation represents one of the biggest challenges the world is facing nowadays. In Morocco, water quality decline is among the significant problems facing the country’s water sector. Geographic Information System (GIS) is an effective and useful tool for interpreting, evaluating and displaying spatial data for water resources management. In order to assess the Physico-chemical characteristics of groundwater of the Sahel-Doukkala aquifers, water samples were collected from 50 points well distributed in the study area, analysed according to standard methods, and the results were interpreted using the geographic information system (GIS) technique. There was an important spatial variability in the studied parameters and element concentrations (T°, pH, EC, Cl-, Ca2+, Mg2+, Sr, B and Na+), revealing that the aquifers lithology, sea intrusion and the agriculture methods are the main factors influencing the water nature in the study area.

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Section: Magnesium and Calciumsupporting

confidence: 87%

Assessment of groundwater quality using Physico-chemical analyses of Sahel-Doukkala region

et al. 2021

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“…The lowest values were registered in the samples retrieved from the north part of the bay, distant from the city and related anthropogenic discharges. Noting also that natural factors such as the granulometric composition of the sediment, seawater dilution levels, and the hydrodynamic conditions that characterize the sampling sites can also affect the distribution of heavy metals in Safi Bay [73]. Noting that stations S23 and S29 indicate significant content fine fractions compared to other sites, explaining the highest recorded concentrations.…”

Section: Spatial Distribution Of Sediment Grain Size and Caco 3 Contentmentioning

confidence: 99%

Spatial Distribution and Contamination Level Assessment of Marine Sediment of the Safi Bay (Moroccan Atlantic Coast)

Minoubi,

Mejjad,

El Khalidi

et al. 2023

Oceans

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This study assesses the spatial distribution and contamination level of heavy metals in Safi Bay surface sediments. In this order, 28 surface sediment samples were retrieved from the study area and analyzed using the x-fluorescence method. To assess the contamination of the examined sediment, we used geo-ecological indices such as contamination factor (CF), degree of contamination (DC), geo accumulation index, and pollution load index (PLI). The results show that only Pb and Cd present moderate and considerable contamination in some sampling sites, while other elements (Cr, Cu, Zn, and Ni) indicate no contamination and low contamination by these elements. The inhomogeneous distribution of metal concentrations along the bay suggests different heavy metal sources. Given the ecological and socioeconomic importance of the study area, there is a need for a further analysis of both sediments and biological samples for a better understanding of the contamination levels and origin of metals, in addition to the sustainability of Safi Bay.

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“…This lagoon has been the subject of many research works because of its ecological interest and socio-economic importance [2][3][4][5][6][7][8][9][10][11][12][13]. An in-depth literature search using the Dimensions database revealed that 62 publications were published between 1986 and 2023 focused on biological and earth sciences, ecology, and environmental sciences (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Valuing the Ecological and Socio-Economic Interests of the Oualidia Lagoon (Morocco): An Ecosystem Services Framework

Mejjad,

Safhi,

Laissaoui

et al. 2023

Asec 2023

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Tracking natural and human impact on sediment dynamics using radiometric approach in Oualidia lagoon (Morocco)

Cited by 9 publications

References 51 publications

Assessment of groundwater quality using Physico-chemical analyses of Sahel-Doukkala region

Assessment of groundwater quality using Physico-chemical analyses of Sahel-Doukkala region

Spatial Distribution and Contamination Level Assessment of Marine Sediment of the Safi Bay (Moroccan Atlantic Coast)

Valuing the Ecological and Socio-Economic Interests of the Oualidia Lagoon (Morocco): An Ecosystem Services Framework

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