Sediment-water column exchange of persistent organic pollutants (PAHs and PCBs) and their transport vector in El Bey watershed, Tunisia

Khadhar, Samia; Achour, Dhouha; Chekirben, Anis; Chawachi, Rim; Mlayah, Ammar; Charef, Abdelkrim

doi:10.1007/s12517-018-3851-5

Cited by 11 publications

(3 citation statements)

References 18 publications

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“…They constitute a serious pollutant for any aquatic system (Pekey 2006;Joy et al, 2019). The major sources of trace elements are natural due to the erosion of geological materials and anthropogenic caused by domestic, industrial and agricultural activities (Dawson et al, 1998;Demirak et al, 2006;Sakan et al, 2013;Leung et al, 2017;C ¸a glar et al, 2019;K€ ose et al, 2019).…”

Section: Q1mentioning

confidence: 99%

“…After the construction of the dams of El Kbir in 1920, Bir M'Cherga in 1971 and Lahma in 2002, the sediments input into the Gulf of Tunis decreased from 3.3 10 6 to 2.2 10 6 tons/year (Sliti, 1990;El Arrim, 1996;Saïdi et al, 2013). This reduction affects the solid and liquid inputs to the Gulf of Tunis containing the discharged polluted waters (Added et al, 2003;Khadhar et al, 2018;Kabouchi et al, 2020).…”

Section: Study Areamentioning

confidence: 99%

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Distribution and assessment of trace metal contamination in the surface sediments of the Meliane River and the Coast of the Gulf of Tunis (Tunisia, Mediterranean Sea)

Yahyaoui

Amor

Abidi

et al. 2021

Environmental Forensics

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The Meliane River, the second longest and most important river in Tunisia, is one of the major rivers that flow into the Gulf of Tunis. However, it is known by its significant discharges of urban and industrial activities that have seriously affected the quality of the aquatic ecosystem. The highest amounts of Cadmium (Cd), Copper (Cu), Lead (Pb), Zinc (Zn), Nickel (Ni), Chromium (Cr) and Manganese (Mn) in the surface sediments of the Meliane River indicate that the downstream part is the most polluted area. The chemical speciation shows that the majority of the trace metals are bound to a reducible fraction (Zn, Mn, Cr and Ni) and the Pb and Cu are bound to the oxidizable fraction. The Cd is linked to the exchangeable fraction, which indicates its high mobility and toxicity. Both the contamination and enrichment factors values of some trace metals are elevated in the downstream part of the Meliane River. The percentage of the risk assessment code in Cd is 59.8%, which presents a very high environmental risk. Therefore, the spatial distribution of trace elements in the surface sediments is characterized by its high concentration of metals in the downstream part of the Meliane River. These concentrations decrease as a function of change in the physicochemical parameters from the freshwater-saltwater mixing zone to marine stations.

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Section: Q1mentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Distribution and assessment of trace metal contamination in the surface sediments of the Meliane River and the Coast of the Gulf of Tunis (Tunisia, Mediterranean Sea)

Yahyaoui

Amor

Abidi

et al. 2021

Environmental Forensics

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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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Organ-specific bioaccumulation of PCBs and PAHs in African sharptooth catfish (Clarias gariepinus) and common carp (Cyprinus carpio) from the Hartbeespoort Dam, South Africa

Rimayi¹,

Chimuka

2019

Environ Monit Assess

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Sediment-water column exchange of persistent organic pollutants (PAHs and PCBs) and their transport vector in El Bey watershed, Tunisia

Cited by 11 publications

References 18 publications

Distribution and assessment of trace metal contamination in the surface sediments of the Meliane River and the Coast of the Gulf of Tunis (Tunisia, Mediterranean Sea)

Distribution and assessment of trace metal contamination in the surface sediments of the Meliane River and the Coast of the Gulf of Tunis (Tunisia, Mediterranean Sea)

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

Organ-specific bioaccumulation of PCBs and PAHs in African sharptooth catfish (Clarias gariepinus) and common carp (Cyprinus carpio) from the Hartbeespoort Dam, South Africa

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