Levels and distribution of polychlorinated biphenyls in two edible fish species from Izmir Bay (eastern Aegean): a health risk assessment

Autor: Filiz Kucuksezgin, Onur Yurdakul
Přispěvatelé: Ege Üniversitesi
Rok vydání: 2020
Předmět:
Zdroj: Environmental Science and Pollution Research. 27:25069-25081
ISSN: 1614-7499
0944-1344
DOI: 10.1007/s11356-020-08604-8
Popis: The concentrations of polychlorinated biphenyl (PCB) congeners were examined in two fish species from the Izmir Bay. A total of 624 individuals of different fish samples were sampled by trawling from three regions in Izmir Bay between 2010 and 2013. The total levels of indicator PCBs in all samples varied LOD (limit of detection) to 34.3 ng g?1 (dry weight) in the study area. The highest concentrations of PCBs were found in Gulbahce for Mullus barbatus and Diplodus annularis in 2011 and 2010, respectively. PCB153 was the major contributed congener in both fish species during sampling periods. Principal component analysis (PCA) was performed to evaluate the correlation of the determined variables in fish species. According to PCA, the PCBs are not related with fish length. One-way ANOVA test indicated that significant temporal variations were generally detected for PCBs, while non-significant spatial variations were examined between sampling sites. Six PCB congeners were found as 0.59–6.64 ng g?1 (wet weight, wwt) and compared with iPCB6 limits of 75 ng g?1 (wwt) revealed by the Environmental Food Safety Authority. Accordingly, all fish species analyzed did not surpass the safe limits of iPCB6 suggested by EU. The estimated daily intake of 6 PCB congeners by the people were less than the tolerable daily intake (TDI, 10-ng kg?1 body weight day?1) recommended by WHO (2003), suggesting that this intake would not cause adverse effects to residents of Izmir. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
The authors are grateful to Dr. L. Tolga Gonul for his helpful comments on statistical analyses and assessment of health risk. We gratefully thank ARGEFAR for analyses assistance. We also express our deep gratitude to the scientists and crew of the R/V K. Piri Reis for collecting fish samples during the cruises.
Databáze: OpenAIRE
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