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Published on: February 10, 2023
Assessing the human health risks from organophosphate esters: exposure assessment via wild freshwater fish
Shuhui Wang1, Ang Zhao2, Bing Wang1
1College of Chemistry and Materials Science, Hebei University, Baoding 071002, China.
Abstract:
This study utilized a comprehensive screening strategy to thoroughly investigate the species-specific distribution and tissue-specific distribution of potential organophosphate esters (OPEs) in 15 species of wild freshwater fish (n = 109). A total of 26 OPEs were identified, with tris(2-butoxyethyl) phosphate being the predominant OPE. The concentrations of OPEs ranged from 7.80 to 495 ng/g wet weight. No direct correlation was observed between OPE levels and fish body size. Feeding habits play a significant role in the accumulation levels of OPEs in fish species. Carnivorous fish exhibited the highest mean OPE concentration, followed by omnivorous fish, with herbivorous fish having the lowest concentration. Among all tissues and organs of fish, the brain exhibited the most elevated concentration of OPEs. The health risk assessment across all age groups based on Monte Carlo simulations revealed that children were at a high risk of exposure to OPEs through the consumption of wild freshwater fish.
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