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Toxics 2018, 6(2), 22; https://doi.org/10.3390/toxics6020022

Estimated Dietary Intake of Trace Metals from Swordfish Consumption: A Human Health Problem

1
Biosciences, Biotechnlogies and Biopharmacological Department, University of Bari “Aldo Moro”—Strada Prov. le per Casamassima Km 3, 70010 Valenzano (BA), Italy
2
Department of Emergency and Organ Transplant, University of Bari “Aldo Moro”—Strada Prov. le per Casamassima Km 3, 70010 Valenzano (BA), Italy
*
Author to whom correspondence should be addressed.
Received: 12 March 2018 / Revised: 26 March 2018 / Accepted: 28 March 2018 / Published: 3 April 2018
(This article belongs to the Collection Heavy Metals Toxicology)
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Abstract

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. View Full-Text
Keywords: swordfish; heavy metals; health risk; PTWI; THQ swordfish; heavy metals; health risk; PTWI; THQ
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Barone, G.; Dambrosio, A.; Storelli, A.; Garofalo, R.; Busco, V.P.; Storelli, M.M. Estimated Dietary Intake of Trace Metals from Swordfish Consumption: A Human Health Problem. Toxics 2018, 6, 22.

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