Perfluoroalkyl Substances (PFAS) Contamination Levels of Pike (Esox lucius L.) and Roach (Rutilus rutilus L.) from Selected Masurian Lakes in Eastern Europe.
By Magdalena Surma, Piotr Hliwa, Katarzyna Sznajder-Katarzyńska, Wiesław Wiczkowski, Joanna Topolska, and Henryk Zieliński
Environ Toxicol Chem
October 5, 2021
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are of increased concern due to their bioaccumulation in humans and the biota; the health risk they pose to humans and other animals; and their persistency in the environment. In this study, the occurrence of PFAS in selected tissues from pike (Esox lucius L.) and roach (Rutilus L.) collected from two lakes in the Masurian Lake District (Poland) in Eastern Europe was addressed. Ten PFAS were analyzed in the tissue of the brain, liver, kidneys, gonads and muscles by micro high-performance liquid chromatography coupled with tandem mass spectrometry (micro-HPLC-MS/MS). Only perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA) and perfluorodecanoic acid (PFDA) were detected above the limit of quantification (LOQ). Concentrations in pike and roach from Ełckie Lake and Hańcza Lake were estimated to be 14/27 and 4.4/3.2 ng/g ww, respectively. The contributions of PFOS and PFOA to the sum (Σ) of PFAS calculated for particular tissues for each fish species were higher than those of the other analyzed compounds. PFOS was found to be predominant in fish from Ełckie Lake, whereas PFOA predominated in fish from Hańcza Lake. It was noted that PFAS concentrations in tissues declined in the following order: kidney > gonads ≈ brain > liver > muscle. The ∑ of greatest estimated PFAS concentration was 9.7 ng/g ww in kidneys of pike collected from Hańcza Lake. No correlation was noted between PFAS concentration and fish size. The information provided in our study gives a better understanding of the potential dependencies in PFAS distribution and accumulation in biota. This article is protected by copyright. All rights reserved.