ECIMAT-CIM, University of Vigo, Illa de Toralla s/n, Vigo E-36390, Galicia, Spain.
Department of Analytical Chemistry, Nutrition and Food Sciences, IAQBUS - Institute of Research on Chemical and Biological Analysis, Universidade de Santiago de Compostela, Constantino Candeira 5, Santiago de Compostela E-15782, Galicia, Spain.
Sci Total Environ. 2022 Jan 20;805:150384. doi: 10.1016/j.scitotenv.2021.150384. Epub 2021 Sep 17.
The bioaccumulation and depuration of seven organophosphorus flame retardants (OPFRs) in marine mussel Mytilus galloprovincialis were studied. OPFRs showed to be bioavailable in aquatic environments. When mussels are exposed to environmentally relevant concentrations of OPFRs, uptake kinetics fit well to a first-order model with a single compartment; in contrast depuration rates were generally underestimated by that model, most likely because it does not take into account the biotransformation of OPFRs by the organisms. The highest bioaccumulation rates were observed for tricresyl phosphate (TCrP), triphenyl phosphate (TPhP) and 2-ethylhexyldiphenylphosphate (EHDPP). This could be due to the presence of aryl groups in these compounds, their low solubility in water, and their affinity for fat tissues. According to these findings TCrP, with a BCF value of 4042 L kg wet weight, should be classified in environmental regulations as an accumulative chemical.
研究了海洋贻贝 Mytilus galloprovincialis 中七种有机磷阻燃剂 (OPFRs) 的生物积累和净化。OPFRs 在水生环境中是具有生物利用性的。当贻贝暴露于环境相关浓度的 OPFRs 时，吸收动力学很好地符合单室的一级模型；相比之下，该模型普遍低估了净化率，这很可能是因为它没有考虑生物体对 OPFRs 的生物转化。三氯乙基磷酸酯 (TCrP)、三苯基磷酸酯 (TPhP) 和 2-乙基己基二苯基磷酸酯 (EHDPP) 的生物积累率最高。这可能是由于这些化合物中存在芳基、它们在水中的低溶解度以及它们对脂肪组织的亲和力。根据这些发现，三氯乙基磷酸酯 (TCrP) 的 BCF 值为 4042 L kg 湿重，应根据环境法规将其归类为累积性化学物质。
