PCB residues in the tissues of sea ducks wintering on the south coast of the Baltic Sea, Poland

Environmental Science and Pollution Research International
Agnieszka Tomza-MarciniakRenata Pilarczyk

Abstract

The Baltic Sea is known to be severely polluted by a range of chemicals, one group of which being PCBs. Although the use and production of PCBs were limited or banned in many countries in the 1970s, their presence is still observed in the environment. The aim of this study was to evaluate PCBs concentration in four species of diving sea ducks, interspecies and tissues differences, and in the case of game species, comparison of the obtained results with maximal residue levels (MRLs) and tolerable weekly intake (TWI). The level of Σi-PCBs was noted in most examined samples (liver, muscle, fat tissue) at levels ranging between < LoD and 2315.45 ng/g lw. The dominant congener was PCB 153, followed by PCB 180 and 138. The mean dl-PCB-TEQ value in the muscles of the tested tufted ducks and common pochards was 0.31 and 0.71 pg-TEQ/g lw, respectively, which is 8-25 and 18-57% of the TEQ maximum limit (ML) value for farm animal muscles. The average decrease in i-ΣPCB concentration in the fat tissue of ducks wintering in the Baltic Sea southern coast was found to be 2.9-3.3%/year. The analysis of PCB residues indicates that the common pochard and tufted duck are not suitable for consumption due to high Σi-PCB concentrations. However, the...Continue Reading

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Citations

Aug 31, 2020·World Journal of Microbiology & Biotechnology·Yun XiangXing Huang
Sep 18, 2020·Environmental Science and Pollution Research International·Ilona WaszakGrzegorz Zaniewicz
Feb 17, 2021·Environmental Monitoring and Assessment·Agata WitczakJacek Cybulski
Feb 3, 2022·Environmental Science and Pollution Research International·Nicolas D VazquezKarina S B Miglioranza

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