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Article

PCBs and PCDD/Fs in Bluefin Tuna: Occurrence and Dietary Intake

1
Biosciences, Biotechnologies and Biopharmaceutical Department, University of Bari “Aldo Moro”, Strada Prov. le per Casamassima Km 3, 70010 Valenzano (Ba), Italy
2
Department of Emergency and Organ Transplantation, Section of Veterinary Clinic and Animal Production, University of Bari “Aldo Moro”, Strada Prov. le per Casamassima Km 3, 70010 Valenzano (Ba), Italy
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(5), 911; https://doi.org/10.3390/ijerph15050911
Received: 19 February 2018 / Revised: 27 April 2018 / Accepted: 27 April 2018 / Published: 3 May 2018
(This article belongs to the Special Issue Dietary Exposures)
Polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-furans (PCDD/Fs) were measured in Mediterranean bluefin tuna (Thunnus thynnus) to verify the compliance with the EU regulations for food commercialization. The estimated intakes were also evaluated. The analyses were performed by gas chromatography-ion trap tandem mass spectrometry (GC-MS-MS). The PCBs were dominant (1132.0 ng g−1 l.w.), followed by PCDFs (23.2 pg g−1 l.w.) and PCDDs (8.5 pg g−1 l.w.). The pollutant levels (dl-PCBs: 0.7 pg TEQ/g w.w.; PCDD/Fs: 1.9 pg TEQ/g w.w.) and their sum expressed as TEQ values (2.6 pg TEQ/g w.w.) remained below the limits for human consumption proposed by the European Union. On the contrary, the sum of the six indicator non-dioxin-like PCBs (84.2 ng g−1 w.w.) was slightly above the maximum level fixed by the in-force legislation. The estimated dietary intakes for PCDD/Fs plus dl-PCBs were below the toxicological reference values (TRVs) set by various international bodies, while non-cancer and cancer risk assessment revealed a safety concern. Additionally, the estimated intake of ndl-PCBs exceeded the maximum levels set by different European countries. These findings suggest caution in tuna consumption together with an active and frequent surveillance of the chemical quality of its flesh. View Full-Text
Keywords: bluefin tuna; estimated dietary intake; PCBs; PCDD/Fs; risk assessment bluefin tuna; estimated dietary intake; PCBs; PCDD/Fs; risk assessment
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MDPI and ACS Style

Barone, G.; Storelli, A.; Garofalo, R.; Mallamaci, R.; Quaglia, N.C.; Storelli, M.M. PCBs and PCDD/Fs in Bluefin Tuna: Occurrence and Dietary Intake. Int. J. Environ. Res. Public Health 2018, 15, 911. https://doi.org/10.3390/ijerph15050911

AMA Style

Barone G, Storelli A, Garofalo R, Mallamaci R, Quaglia NC, Storelli MM. PCBs and PCDD/Fs in Bluefin Tuna: Occurrence and Dietary Intake. International Journal of Environmental Research and Public Health. 2018; 15(5):911. https://doi.org/10.3390/ijerph15050911

Chicago/Turabian Style

Barone, Grazia, Arianna Storelli, Rita Garofalo, Rosanna Mallamaci, Nicoletta C. Quaglia, and Maria M. Storelli 2018. "PCBs and PCDD/Fs in Bluefin Tuna: Occurrence and Dietary Intake" International Journal of Environmental Research and Public Health 15, no. 5: 911. https://doi.org/10.3390/ijerph15050911

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