The legacy effect of microplastics on aquatic animals in the depuration phase: Kinetic characteristics and recovery potential

• DOI: 10.1016/j.envint.2022.107467
• Publication Date: 2022-08-12T15:40:47Z
• Authors: Tao Sun; Chenglong Ji; Fei Li; Xiujuan Shan; Huifeng Wu
• Keywords: Environmental sciences; Variable importance; Recovery; Microplastics; GE1-350; Depuration; 01 natural sciences; Retention time; 0105 earth and related environmental sciences

The prevalence of microplastics (MPs) in global aquatic environments has received considerable attention. Currently, concerns have been raised regarding reports that the adverse effect MPs on animals exposure phase may not be (completely) reversed depuration phase. In order to provide insights into legacy from phase, this study evaluated kinetic characteristics and recovery potential after MPs. More specifically, a total 68 curves were highly fitted estimate retention time It was shown ranged 1.26 3.01 days, corresponding egestion 90 % 99 ingested decreased with increased rate. Furthermore, variables potentially affecting ranked by decision tree-based eXtreme Gradient Boosting (XGBoost) algorithm, suggesting particle size tested species great importance for explaining difference Moreover, biomarker profile recompiled determine toxic changes. Results indicated MPs-induced toxicity significantly reduced evidenced energy reserves metabolism, hepatotoxicity, immunotoxicity, hematological parameters, neurotoxicity oxidative stress. However, continuous detoxification remarkable genotoxicity implied completely alleviated. addition, current knowledge gaps are also highlighted, recommendations proposed future research.