Occurrence of Free-Form and Conjugated Bisphenol Analogues in Marine Organisms

• DOI: 10.1021/acs.est.0c08458
• Publication Date: 2021-04-01T19:14:25Z
• Authors: Nan Zhao; Hongmei Hu; Meirong Zhao; Weiping Liu; Hangbiao Jin
• Keywords: Biomagnification; Bisphenol S

Upon exposure, most bisphenol analogues (BPs) are rapidly metabolized to BP conjugates in organisms. Monitoring studies on BPs aquatic organisms have been mainly focused free-form BPs. However, the relative amount of conjugated is still not well known, especially marine In this study, we collected (13 species; n = 74), as seawater (n 15), from East China Sea, and analyzed them for A (BPA) its eight analogues. seawater, BPA was predominant (mean ± standard deviation (SD), 18 9.7 ng/L), followed by S (BPS; 3.7 2.8 F (BPF; 0.31 0.17 AF (BPAF; 0.24 0.15 ng/L). The whole body each organism used analysis study. 3.8 ng/g, range 1.2-7.7 ng/g) BPS (1.5 0.19-6.1 were without hydrolysis. After enzymatic hydrolysis treatment, mean concentrations increased 1.8 (BPS)-3.7 times Correspondingly, average, 74, 52, 49, 48, 45% BPA, Z, BPF, BPS, BPAF present forms, respectively, Moreover, bioaccumulation biomagnification evaluated using pooled samples. We first found that log BAF values 0.091 (BPAF) after Overall, study determines forms organisms, which helpful better understanding occurrence