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

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...

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Bibliographic Details
Published in:Toxics (Basel) 2018-04, Vol.6 (2), p.22
Main Authors: Barone, Grazia, Dambrosio, Angela, Storelli, Arianna, Garofalo, Rita, Busco, Vito Pietro, Storelli, Maria Maddalena
Format: Article
Language:English
Subjects:
Atomic absorption analysis
Cadmium
Chelonia mydas
Chemical contaminants
Chromium
Commercial fishing
Consumer protection
Consumption
Copper
Councils
Diet
Dietary intake
Fish
Fisheries
Fishing
Food contamination & poisoning
health risk
Health risks
Heavy metals
Lead
Mercury
Mercury (metal)
Metal concentrations
Metals
Muscles
Nickel
PTWI
Regulation
Risk
Spectral analysis
Standard deviation
Swordfish
THQ
Trace elements
Trace metals
Xiphias gladius
Zinc
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Summary: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.
ISSN:2305-6304
2305-6304
DOI:10.3390/toxics6020022