Distribution of persistent organic pollutants (POPS) IN wild Bluefin tuna (Thunnus thynnus) from different FAO capture zones

Abstract

24Residues of environmental contaminants in food represent a concern in food safety 25 programs. In this study, the distribution of persistent organic pollutants (POPs) were

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

“…On the other hand, also for the six ndl-PCBs, the estimated intake is above the value set at the national level for non-dioxin-like PCBs in some countries, corroborating the opinion that hazards associated with consumption of this species cannot be ignored. As a final conclusion, although the decline in the human dietary exposure to these xenobiotic chemicals is a fact, high-trophic fish, especially from the Mediterranean Sea [ 6 ], continue to accumulate large amounts of chemicals from the environment polluted during the previous decades. Taking into account the relevant nutritional contribution that fish give to the diet and, on the other hand, that the consumption of contaminated fish is the major pathway of human exposure to these compounds, caution is suggested in tuna consumption and an active and frequent surveillance of the chemical quality of this valuable fishery resource is recommended.…”

“…Due to their characteristics of elevated chemical stability and persistence, these toxicants are present in all environmental media compromising absolutely the “health” of the environment and its biota. The Mediterranean Sea, almost entirely landlocked and with a limited water exchange, constitutes a site surely overexposed to anthropogenic pressure [ 4 , 5 , 6 ]. Bluefin tuna, Thunnus thynnus (Linnaeus 1758) is an important species within the Mediterranean ecosystems.…”

“…Bluefin tuna, Thunnus thynnus (Linnaeus 1758) is an important species within the Mediterranean ecosystems. Characterized by long lifespan and fast-growth, this top predator of the pelagic trophic web is susceptible to contain high concentrations of these lipophilic pollutants [ 6 , 7 ]. In addition, Bluefin tuna is a high-performance fish with very elevated metabolic and food intake rates and features enhancing contaminant bioaccumulation [ 8 , 9 ].…”

Legacy and Emerging Contaminants in Demersal Fish Species from Southern Norway and Implications for Food Safety

“…The extraction of chlorinated and brominated compounds (OCs, OPs, PCBs, and PBDEs), as well as PAHs, from the fish fillet was performed by means of the QuEChERS approach as described elsewhere [29]. An aliquot of about 3 g of fish fillet was homogenized, transferred to a QuEChERS extraction tube, and ISs were added.…”

“…The methods were checked for their linearity, repeatability, recovery, limit of detection (LOD), and quantification (LOQ), as reported in Table S3 according to the SANTE 2017 [31] guidelines and our previous studies [7,29,30]. The LOD and LOQ for each analyzed compound were calculated from the calibration curve in the concentration range corresponding to the lower concentration levels according to MRL for each compound, when available.…”