Bioaccumulation monitoring of chemical contaminants in musselsMytilus galloprovincialis from the southern coast of the Marmara Sea, Turkey

Abstract

Mytilus galloprovincialis, the Mediterranean mussel, is an important shellfish species that constitutes the majority of production and consumption among bivalve mollusks in Turkey. Since shellfish can accumulate toxic chemicals from seawater, it is important to monitor bioaccumulation from their natural beds. For this reason, in this study, the aim was to monitor the levels of dioxins and dioxin-like polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and toxic metals (Pb, Cd, and Hg) in M. galloprovincialis collected from the southern coast of the Marmara Sea from 2014 to 2017. According to the results, the maximum levels of dioxins, PAHs, and toxic metals during the monitoring period were determined as 0.30 pg/g, 2.52 mg/kg, and 0.43-0.34-0.76 (Pb-Cd-Hg) mg/kg, respectively. Dioxin, PAHs, and toxic metal amounts in mussel samples were determined to be below the threshold levels enforced by the European Commission. The highest benzo(a)pyrene and total PAHs were determined in winter 2015, while toxic metals, dioxins, and dioxin-like PCBs (WHO/PCDD/F-PCB-TEQ) were higher in autumn 2014 than the rest of the sampling period. In conclusion, toxic chemicals monitored in M. galloprovincialis were found at low concentrations from the point of view of food safety. However, monitoring of these or other toxic chemicals should be repetitively performed in the future to ensure food safety in aquatic animals.

Bioaccumulation of emerging contaminants in mussel (Mytilus galloprovincialis): Influence of microplastics

“…In the literature, few bioaccumulation tests have been conducted with dioxins and dioxinlike polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), toxic metals (Pb, Cd, and Hg) and UV filters (Çolakoglu et al, 2020;Vidal-Liñán et al, 2018;Yakan et al, 2017). However, in contrast to the increasingly presence of ECs in sea and sea live, limited data exist about the occurrence of PPCPs, pesticides, PFASs or microplastics in mussels and even less in M. galloprovincialis.…”

“…Many reports contributed information on the distribution of these ECs in abiotic environmental compartments as water and sediments (Barbieri et al, 2021;Calvo et al, 2021;Campo et al, 2016;Carmona et al, 2017;Sadutto et al, 2021b). However, several gaps remain on the accumulation and distribution of these compounds in biota because only very partial data are available, as ecotoxicity studies rarely include tissue concentrations and cover few analytes compared to the large number of contaminants that may be present even in a single sample (Çolakoglu et al, 2020;Di Poi et al, 2016;Miller et al, 2018;Pes et al, 2021;Sanchís et al, 2018).…”

Bioaccumulation of PCDD/F and PCBs in Ruditapes Philippinarum (Adams & Reeve, 1850) in Vallona Lagoon (Italy)

“…Generally, a profile of OctaCDD and light furans predominated all over the study, which is mainly related to civil combustion [1,3]. The Vallona Lagoon is a complex ecosystem influenced by the Po River, which drains huge amounts of nutrients and contaminants from intensely cultivated, and highly industrialized inland areas of the Northern Italy [14]. The human influence also consists of local contamination, although in a smaller quota [8].…”

“…PCDD/Fs and PCBs concentrations in Manila clams R. philippinarum sampled during the BDA monitoring for a pipeline construction in the Vallona Lagoon showed quite low levels when compared with other transitional areas with medium to low pollution impact [12][13][14]. Moreover, TEQ values were always lower than 8 pg/g w.w. that is the European limit in molluscs for human consumption (Reg.…”