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<p>Heavy metal pollution in marine ecosystems poses significant threats to aquatic organisms and human health. This study determined the concentrations of metals in the edible muscle tissues of recently obtained <i>Mullus surmuletus</i> samples collected from three distinct regions of the Mersin Bay, Northeastern (NE) Mediterranean Sea. The muscle tissues of the obtained fish samples were analyzed for the selected metals using microwave-assisted digestion and the ICP-MS technique. Then, potential health risks were assessed using Target Hazard Quotient (THQ) and Cancer Risk (CR) values. Study findings showed that the mean metal concentrations varied between 1.58 and 9.75&#xa0;mg/kg for Al, 0.0018–0.0020&#xa0;mg/kg for Cr, 0.292–0.680&#xa0;mg/kg for Mn, 6.20-20.05&#xa0;mg/kg for Fe, 0.0006–0.0016&#xa0;mg/kg for Co, 0.0007–0.0039&#xa0;mg/kg for Ni, 0.450–0.562&#xa0;mg/kg for Cu, 4.651–5.823&#xa0;mg/kg for Zn, 0.00019–0.00022&#xa0;mg/kg for Cd, and 0.0019–0.0030&#xa0;mg/kg for Pb, respectively. Metal concentrations varied significantly among sampling locations, with the highest levels detected in the central and eastern regions of the bay, highly influenced by riverine inputs from the Seyhan and Berdan Rivers, as well as maritime and wastewater discharges. One-way ANOVA and Pearson correlation analyses indicated significant spatial variation and potential common sources of metal contamination in the study region. Though all metal concentrations in fish samples were below national and international permissible threshold limits for human consumption, health risk assessments indicated that copper may pose long-term carcinogenic risks.</p>

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Heavy Metal Contamination in a Marketed Fish (Mullus surmuletus) Under Diverse Anthropogenic Pressures: A Case Study from the Mersin Bay, Türkiye

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • Özgür Özbay,
  • Hulusi Dalçık,
  • Fahri Karayakar,
  • İsmail Akçay,
  • Mehmet Tahir Alp

摘要

Heavy metal pollution in marine ecosystems poses significant threats to aquatic organisms and human health. This study determined the concentrations of metals in the edible muscle tissues of recently obtained Mullus surmuletus samples collected from three distinct regions of the Mersin Bay, Northeastern (NE) Mediterranean Sea. The muscle tissues of the obtained fish samples were analyzed for the selected metals using microwave-assisted digestion and the ICP-MS technique. Then, potential health risks were assessed using Target Hazard Quotient (THQ) and Cancer Risk (CR) values. Study findings showed that the mean metal concentrations varied between 1.58 and 9.75 mg/kg for Al, 0.0018–0.0020 mg/kg for Cr, 0.292–0.680 mg/kg for Mn, 6.20-20.05 mg/kg for Fe, 0.0006–0.0016 mg/kg for Co, 0.0007–0.0039 mg/kg for Ni, 0.450–0.562 mg/kg for Cu, 4.651–5.823 mg/kg for Zn, 0.00019–0.00022 mg/kg for Cd, and 0.0019–0.0030 mg/kg for Pb, respectively. Metal concentrations varied significantly among sampling locations, with the highest levels detected in the central and eastern regions of the bay, highly influenced by riverine inputs from the Seyhan and Berdan Rivers, as well as maritime and wastewater discharges. One-way ANOVA and Pearson correlation analyses indicated significant spatial variation and potential common sources of metal contamination in the study region. Though all metal concentrations in fish samples were below national and international permissible threshold limits for human consumption, health risk assessments indicated that copper may pose long-term carcinogenic risks.