Enhanced adsorption of tetrabromobisphenol a (TBBPA) on cosmetic-derived plastic microbeads and combined effects on zebrafish
Enhanced adsorption of tetrabromobisphenol a (TBBPA) on cosmetic-derived plastic microbeads and combined effects on zebrafish
复制标题
化妆品塑料微珠对四溴双酚 A (TBBPA) 的增强吸附及其对斑马鱼的综合影响
DOI：
10.1016/j.chemosphere.2020.126067
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发表时间：
2020
期刊：
影响因子：
8.8
通讯作者：
Yu Gang
中科院分区：
文献类型：
--
作者：
Yu Yunjiang;Ma Ruixue;Qu Han;Zuo You;Yu Ziling;Hu Guocheng;Li Zongrui;Chen Haibo;Lin Bigui;Wang Bin;Yu Gang
近年来，微塑料污染及其潜在的环境风险日益受到关注。其中，个人护理和化妆品中的微珠由于其丰富的数量以及其在淡水中精确环境行为的知识空白而成为一个新兴的问题。本研究研究了四溴双酚A（TBBPA）（水生环境中应用最广泛且最常见的阻燃剂）在两种聚乙烯（PE）颗粒来源（原始PE颗粒和从个人护理品中分离的微珠）上的吸附过程和化妆品产品）。观察到微珠的吸附能力显著增强，比原始PE颗粒高5倍。吸附效率也取决于溶液的pH值，特别是化妆品衍生的微珠，表明强吸附TBBPA的PE是由疏水和静电相互作用。此外，斑马鱼的氧化还原状态的综合影响进行了评估与两个环境相关浓度的PE颗粒（0.5和5毫克L-1），通过14天的曝光使用综合生物标志物响应（IBR）指数。当暴露于0.5 mg L-1的MP时，共暴露比单独的PE或TBBPA诱导显著的抗氧化应激。经7 d净化后，TBBPA + PE（L）组合处理的IBR值是不含MP组的3倍，表明两者共存可能对水生生物产生长期的不利影响。这些结果强调了淡水中微珠污染的风险可能性，其中有毒化合物可以大量吸附在微珠上，从而对水生生物产生潜在的不利影响。(C)2020爱思唯尔有限公司保留所有权利。
Microplastics (MPs) pollution and its potential environmental risks have drawn increasing concerns in recent years. Among which, microbeads in personal care and cosmetic products has becoming an emerging issue for their abundance as well as the knowledge gaps in their precise environmental behaviors in freshwater. The present study investigated the sorption process of tetrabromobisphenol A (TBBPA), the most widely applied and frequently encountered flame retardant in aquatic environments, on two sources of polyethylene (PE) particles (pristine PE particles and microbeads isolated from personal care and cosmetic products). Significantly enhanced adsorption capacity of microbeads was observed with up to 5-folds higher than the pristine PE particles. The sorption efficiency was also governed by solution pH, especially for the cosmetic-derived microbeads, indicating the strong adsorption of TBBPA on PE was dominated by both hydrophobic and electrostatic interactions. Additionally, combined effects on redox status of zebrafish were evaluated with two environmental relevant concentrations of PE particles (0.5 and 5 mg L-1) using integrated biomarker response (IBR) index through a 14-d exposure. Co-exposure induced significant antioxidative stress than either PE or TBBPA alone when exposed to 0.5 mg L-1 of MPs. After 7-d depuration, the IBR value for combination treatments [TBBPA + PE (L)] was 3-fold compared with that in MP-free groups, indicating the coexistence might exert a prolonged adverse effects on aquatic organisms. These results highlight the probability of risk from microbead pollution in freshwater, where toxic compounds can be adsorbed on microbeads in a considerable amount resulting in potential adverse effects towards aquatic organisms. (C) 2020 Elsevier Ltd. All rights reserved.