Profile, Tissue Distribution, and Time Trend of Bisphenol Plastic Additives in Freshwater Wildlife of the Pearl River Ecosystem, China.

This article focuses on the occurrence, bioaccumulation, and biotransfer of bisphenol (BP) plastic additives—including bisphenol A (BPA), bisphenol F (BPF), and bisphenol S (BPS)—in freshwater wildlife from the Pearl River ecosystem in China. The study found that BPA, BPF, and BPS were the predominant analogues, with concentrations and analogue profiles varying seasonally, by species, habitat, and tissue type; pelagic fish species and liver tissues generally showed higher BP levels. Bioaccumulation factors indicated a moderate to slight potential for bioaccumulation, influenced by factors such as feeding behavior and trophic transfer, while maternal transfer of BPs was also suggested. Estimated human exposure to BPs through consumption of wild freshwater fish in the region was below established safety thresholds. The authors recommend further research on BP metabolism and transgenerational transfer in wildlife to better assess ecological risks.