Assessment of traces metals in sediment from Ebolowa Municipal Lake basin (central-africa): potential risk and provenance

Akono, Daniel Florent; Assomo, Philippe Samba; Atangana, Jacqueline Ntsama; Nkongho, Ashukem Ethel; Belinga, Cédric Belinga; Ekomane, Emile

doi:10.1016/j.heliyon.2022.e10186

Cited by 5 publications

(4 citation statements)

References 43 publications

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“…Thus, the important enrichment observed in these parts would be linked to these conditions, which would favor a more important biological activity and consequently an acceleration of the mineralization process of the matter in this part of the lake. The work [ 22 ] has indeed shown that the western part of the lake is the one most subjected to anthropic activity, which makes it the most affected by the accelerated eutrophication process observed in this lake in recent years.…”

Section: Discussionmentioning

confidence: 99%

“…For sediments, pH and Eh were measured according to the method described by Ref. [ 22 ]. The collected samples were packed in plastic bags with a supernatant of water from each sampling point.…”

Section: Methodsmentioning

confidence: 99%

“…However, these studies are mainly concerned with palaeoenvironmental reconstructions, provenance, paleoweathering conditions, and t pollution level. Few studies have focused on early diagenesis process and its influence on sediments composition [ [19] , [20] , [21] , [22] ]. The Ebolowa Municipal Lake (EML) is fed by two rivers.…”

Section: Introductionmentioning

confidence: 99%

“…This makes it a favorable environment for processes associated with early diagenesis. Also, the work of [ 21 , 22 ] showed that there is a difference in the geochemical composition of the sediments of the EML compared to those of its tributaries, although they come from the same sources and have undergone the same type of alteration. Similarly, the lake has been undergoing accelerated eutrophication for several years, especially in its Western part.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

Daniel Florent,

Eric,

Salomon Bertrant

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

Daniel Florent,

Eric,

Salomon Bertrant

et al. 2023

Heliyon

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Examining temporal trends in heavy metal levels to analyze sediment pollution dynamics in the Saida urban watershed (N‐W Algeria)

Fatmi,

Hazzab,

Rahmani

et al. 2024

Water Environment Research

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The study focuses on current pollution in the Saïda basin, a semi‐arid region in north‐western Algeria. By analyzing sediments, the study provides interesting results on urban pollution and its environmental impact. The research consists of two main phases, each addressing different aspects of pollution. In the first phase, different pollution indicators are used to analyze heavy metals and organic pollutants in urban drainage sediments. The results are compared with sediment quality guidelines, regulatory thresholds, and local and international references. Most of the metallic contaminants exceed the toxicity levels established by the continental crust and sediment quality guidelines, suggesting an anthropogenic origin. In addition, contamination indices show significant accumulation. In this context, the results highlight the importance of accumulation and transport processes in urban sediments. Hydrological parameters significantly influence heavy metal distribution mechanisms. Remarkable variations between copper (Cu) and lead (Pb) suggest a combined or singular source during transport. Conversely, chromium (Cr), nickel (Ni), and iron (Fe) are mainly derived from natural lithological sources. Cadmium (Cd) is associated with anthropogenic sources related to the agricultural use of phosphate fertilizers, whereas zinc (Zn) is mainly derived from physical corrosion processes. In the second phase, a combined descriptive and multivariate statistical analysis examines the mobility and distribution of heavy metals and their relationships with organic matter (OM) over time. Pronounced temporal variations in Cd, Zn, and Cu concentrations are attributed to human activities. Strong correlations exist between OM and cobalt (Co), Cu and Pb, confirming the ability of OM to adsorb these metals under specific geochemical conditions associated with waste disposal. Conversely, Zn, Cd, Cr, and Ni show weak or negative correlations with OM, suggesting diverse sources, including potential agricultural, industrial, and natural origins. The dendrogram confirms the existence of previously identified contaminant groups, suggesting common sources and potential co‐occurrence patterns. This analysis highlights the role of the drainage network as a physico‐chemical reactor in the mobilization of contaminants. It underlines the importance of sediment interactions in urban pollution processes. Finally, recommendations are proposed to ensure effective pollution control and remediation.Practitioner Points Useful information on pollution and its environmental impact is provided by the analysis of sediments in the urban basin of Saida (NW‐Algeria). The results of this study indicate high levels of heavy metals in the sediments, in excess of toxicity limits, and evidence of anthropogenic sources. Temporal variations in metal concentrations indicate the influence of human activities. The study has made it possible to identify the sources, to understand the mobility and distribution, and to control the contamination by heavy metals in the urban sediments. Drainage system serves as a pathway for dispersing contaminants.

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Health risk and pollution associated with trace metals in the waters of the Ebolowa municipal lake basin (Central Africa): evidence from hydrochemistry, quality indices, and statistical analyses

Florent,

Philippe,

Lucas

et al. 2024

Environ Geochem Health

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Assessment of traces metals in sediment from Ebolowa Municipal Lake basin (central-africa): potential risk and provenance

Cited by 5 publications

References 43 publications

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

Examining temporal trends in heavy metal levels to analyze sediment pollution dynamics in the Saida urban watershed (N‐W Algeria)

Health risk and pollution associated with trace metals in the waters of the Ebolowa municipal lake basin (Central Africa): evidence from hydrochemistry, quality indices, and statistical analyses

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