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<p>The current study aims to examine the concentrations of eight trace elements (TE) (nickel, aluminum, copper, cadmium, lead, cobalt, chromium, and zinc) in the edible tissue of the invasive blue crab <i>Portunus segnis</i> in two southern Mediterranean lagoons (i.e., Bizerte Lagoon (BL) and Ghar El-Melh Lagoon (GML)) between 2020 and 2021. The samples were analyzed for TE using inductively coupled plasma mass spectrometry (ICP-MS). The results showed that the mean concentrations in <i>P. segnis</i> muscles were significantly lower in Ghar El-Melh (0.183&#xa0;mg/kg DW, 1.887&#xa0;mg/kg DW, and 0.986&#xa0;mg/kg DW for Cd, Cu, and Al, respectively) compared to Bizerte Lagoon (0.227&#xa0;mg/kg DW, 8.016&#xa0;mg/kg DW, and 3.658&#xa0;mg/kg DW for Cd, Cu, and Al respectively), except for Zn which exhibited similar concentrations in crabs harvested from both lagoons. The recorded concentrations of all TE measured in both lagoons were within acceptable limits per the recommended standards. The highest TE concentrations in <i>P. segnis</i> muscle tissue of crabs from both lagoons were recorded during the summer. The analysis of trace element (TE) levels in <i>P. segnis</i> and the assessment parameters, including estimated daily intake (EDI), target hazard quotient (THQ), and target cancer risk (TCr), revealed values below the acceptable limits for human health. THQ and TCr are commonly utilized in environmental and health risk assessments to gauge the potential impact of contaminants on human health. As a result, we can affirm that the invasive crab <i>P. segnis</i> figures as a secure shellfish product suitable for human consumption in Tunisia. This study provides an opportunity to assess the health risks of consuming blue crabs, with the toxicity risk index aiding decision-making for consumers, policymakers, and stakeholders focused on safety and sustainability. Additionally, it offers fundamental insights to lay the groundwork for forthcoming studies on environmental assessments.</p>

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Assessing of trace elements health risks in the crab Portunus segnis from northern Tunisian lagoons

  • 期刊论文

  • 发表日期：

    2025年2月25日

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  • Rym Ennouri,
  • Safa Bejaoui,
  • Feriel Ghribi,
  • Dalya Belhassen,
  • Nejla Soudani,
  • Sami Mili

摘要

The current study aims to examine the concentrations of eight trace elements (TE) (nickel, aluminum, copper, cadmium, lead, cobalt, chromium, and zinc) in the edible tissue of the invasive blue crab Portunus segnis in two southern Mediterranean lagoons (i.e., Bizerte Lagoon (BL) and Ghar El-Melh Lagoon (GML)) between 2020 and 2021. The samples were analyzed for TE using inductively coupled plasma mass spectrometry (ICP-MS). The results showed that the mean concentrations in P. segnis muscles were significantly lower in Ghar El-Melh (0.183 mg/kg DW, 1.887 mg/kg DW, and 0.986 mg/kg DW for Cd, Cu, and Al, respectively) compared to Bizerte Lagoon (0.227 mg/kg DW, 8.016 mg/kg DW, and 3.658 mg/kg DW for Cd, Cu, and Al respectively), except for Zn which exhibited similar concentrations in crabs harvested from both lagoons. The recorded concentrations of all TE measured in both lagoons were within acceptable limits per the recommended standards. The highest TE concentrations in P. segnis muscle tissue of crabs from both lagoons were recorded during the summer. The analysis of trace element (TE) levels in P. segnis and the assessment parameters, including estimated daily intake (EDI), target hazard quotient (THQ), and target cancer risk (TCr), revealed values below the acceptable limits for human health. THQ and TCr are commonly utilized in environmental and health risk assessments to gauge the potential impact of contaminants on human health. As a result, we can affirm that the invasive crab P. segnis figures as a secure shellfish product suitable for human consumption in Tunisia. This study provides an opportunity to assess the health risks of consuming blue crabs, with the toxicity risk index aiding decision-making for consumers, policymakers, and stakeholders focused on safety and sustainability. Additionally, it offers fundamental insights to lay the groundwork for forthcoming studies on environmental assessments.