Barone Grazia, Dambrosio Angela, Storelli Arianna, Garofalo Rita, Busco Vito Pietro, Storelli Maria Maddalena
Biosciences, Biotechnlogies and Biopharmacological Department, University of Bari "Aldo Moro"-Strada Prov. le per Casamassima Km 3, 70010 Valenzano (BA), Italy.
Department of Emergency and Organ Transplant, University of Bari "Aldo Moro"-Strada Prov. le per Casamassima Km 3, 70010 Valenzano (BA), Italy.
Toxics. 2018 Apr 3;6(2):22. doi: 10.3390/toxics6020022.
Trace element (Hg, Pb, Cd, Zn, Cu, Ni, and Cr) occurrence was determined in the muscle tissue of swordfish collected in the Mediterranean Sea to assess whether the intakes complied with the recommended levels for essential metals and permissible levels for toxic elements. Metals were analyzed by an atomic absorption spectrophotometer (Shimadzu AA 7000). The methodology of Target Hazard Quotient (THQ) was also evaluated. The ranking order of toxic metal concentration was Hg > Cd > Pb, while for essential elements the distribution pattern followed the sequence Zn > Cu > Ni > Cr. The Estimated Weekly Intakes (EWI) as well as THQ for Cd and Pb indicated that swordfish consumption did not pose a risk to human health, whereas the major concern was for Hg. Fish size-related changes in Hg concentrations resulted in high EWI and THQ values relative to larger fish consumption, implying a potential risk to human health. For consumer protection, catches of swordfish approximately above 44 kg should be avoided as these fish have a higher risk of containing toxic levels of Hg.
测定了在地中海捕获的箭鱼肌肉组织中的微量元素（汞、铅、镉、锌、铜、镍和铬）含量，以评估其摄入量是否符合必需金属的推荐水平和有毒元素的允许水平。使用原子吸收分光光度计（岛津AA 7000）分析金属。还评估了目标危害商数（THQ）方法。有毒金属浓度的排序为汞>镉>铅，而必需元素的分布模式为锌>铜>镍>铬。镉和铅的估计每周摄入量（EWI）以及THQ表明，食用箭鱼不会对人类健康构成风险，而主要关注点是汞。与鱼大小相关的汞浓度变化导致食用较大鱼时EWI和THQ值较高，这意味着对人类健康存在潜在风险。为保护消费者，应避免捕捞约44公斤以上的箭鱼，因为这些鱼含有有毒水平汞的风险更高。
