Risk Assessment of Trace Metals Using Chemical Speciation, Bioavailability, and Cluster Analysis Around Wadi EL Bey (Gulf of Tunis, Tunisia)

Hassen, Nafissa Ben; Khiari, Nouha; Chirón, Serge; Chkirbene, Anis; Khézami, Farah; Azouzi, Rim; Mlayah, Ammar; Hatira, Abdessatar; Khadhar, Samia

doi:10.1080/15320383.2023.2199090

Cited by 7 publications

(2 citation statements)

References 52 publications

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“…On the other hand, the second group (G2) comprises weakly mineralized sediments with an alkaline character (pH > 8), D50, and the coarse fraction (> 63 m), except for FM5. These ndings indicate that pH is the primary factor in uencing the migration of heavy metals, while total organic carbon plays a role in the xation of certain other heavy metals (Ben Hassen et al, 2023). The second axis F2 (19.73% of the total variance) shows the evolution of salinity with an opposition between two groups; the FM5 sample is mainly characterized by Cu, EC, salinity and Zn, which are positively correlated and all vary proportionally with depth.…”

Section: Statistical Analysis and Source Identi Cationmentioning

confidence: 92%

The long-term evolution model of metallic contamination of Monastir-Sayada Coast as deduced from the geochemical and statistical analysis

Khiari,

Charef,

Khadhar

et al. 2023

Preprint

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Coastal regions are especially susceptible to both natural and human-induced pressures, and it is crucial to evaluate these pressures. This research aims to investigate the monitoring of human activities through river discharges in order to identify potential ecological risks and examine the long-term changes in metallic contamination in Monastir-Sayada. To accomplish this, four sediment samples were collected from various locations along the Monastir coast, specifically near the source of pollution, to analyse the concentrations of heavy metals like Zinc (Zn), Cadmium (Cd), Copper (Cu), Lead (Pb), Manganese (Mn), Nickel (Ni), and Iron (Fe). The findings indicate that the average concentrations of these metals in the sediment cores followed a descending order of Fe > Zn > Mn > Cu > Cd in front of the Monastir effluent, Fe > Mn > Zn > Pb > Cd > Cu > Ni in the effluent at Frina region, Fe > Mn > Zn > Cd > Ni > Pb > Cu in the Melah stream, and Fe > Mn > Cd > Zn > Cu in front of the Essouk stream at Lamta. Based on the enrichment factor (EF) and contamination factor (CF), the long-term evolution of the Monastir-Sayada coast is considered highly polluted for Pb and Cd, posing a relatively high potential ecological risk. The heavy metals are believed to originate from similar human activities, as indicated by the principal component analysis (PCA) and cluster analysis (CA). Pollution from heavy metals can have long-lasting effects on coastal sediments, emphasizing the importance of preventing such pollution in the first place.

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Section: Statistical Analysis and Source Identi Cationmentioning

confidence: 92%

The long-term evolution model of metallic contamination of Monastir-Sayada Coast as deduced from the geochemical and statistical analysis

Khiari,

Charef,

Khadhar

et al. 2023

Preprint

Self Cite

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show abstract

“…Tunisia has not taken specific initiatives at a national level to study CECs and pesticides. Previous studies have demonstrated the presence of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyl (PCBs) pollutants as well as heavy metal pollution (Khadhar et al, 2018;Samia et al, 2018;Hassen et al, 2023). The challenging analysis of CECs and pesticides at trace levels mostly relies on international scientific collaborations.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Contaminants of Emerging Concern and Pesticides and Relative Risk Assessment in Tunisian Groundwater

Khézami

Gómez-Navarro²,

Barbieri

et al. 2023

Preprint

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Fate, source apportionment and fractionation of potentially toxic elements in agricultural soil around a densely populated, semiarid urban center of India: baseline study and ecological risk assessment

Sharma,

Inbaraj,

Naz

et al. 2024

Environ Geochem Health

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Risk Assessment of Trace Metals Using Chemical Speciation, Bioavailability, and Cluster Analysis Around Wadi EL Bey (Gulf of Tunis, Tunisia)

Cited by 7 publications

References 52 publications

The long-term evolution model of metallic contamination of Monastir-Sayada Coast as deduced from the geochemical and statistical analysis

The long-term evolution model of metallic contamination of Monastir-Sayada Coast as deduced from the geochemical and statistical analysis

Occurrence of Contaminants of Emerging Concern and Pesticides and Relative Risk Assessment in Tunisian Groundwater

Fate, source apportionment and fractionation of potentially toxic elements in agricultural soil around a densely populated, semiarid urban center of India: baseline study and ecological risk assessment

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