Bisphenol A leachate from polystyrene microplastics has species-specific impacts on scleractinian corals.

IF 8.2 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Science of the Total Environment Pub Date : 2024-12-20 Epub Date: 2024-11-23 DOI:10.1016/j.scitotenv.2024.177604
Emily A Washington, Allison S Paley, Alexandra M Gulizia, Cherie A Motti, George Vamvounis, Mia O Hoogenboom
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Abstract

Plastic waste causes pervasive environmental contamination and can result in the release of harmful chemical leachates into marine ecosystems, especially as they fragment to smaller microplastics (<5 mm). The toxicity of commonly found polystyrene (PS) microplastics and associated bisphenol A (BPA) leachate to framework-building corals Pocillopora damicornis and Dipsastraea pallida was assessed through exposure experiments. Intermittent exposure over 14-days to 1) virgin PS, 2) preformulated PS with bound BPA (BPA-PS) and 3) leached BPA-PS (L-BPA-PS; simulating early stages of weathering) showed that microplastics void of leachable BPA had minimal effect on either coral species. However, BPA leachate had negative effects on the maximal photochemical yield (Fv/Fm) and tissue composition of P. damicornis fragments (e.g., decreased chlorophyll and protein compared to controls). Conversely, BPA leachate did not compromise tissues of D. pallida fragments. These results reveal that exposure to chemicals leaching out of microplastics can drive negative effects of microplastic exposure distinct from physical mechanisms due to ingestion alone, and that effects are species specific.

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聚苯乙烯微塑料中的双酚 A 浸出物对硬骨鱼类珊瑚的影响具有物种特异性。
塑料废弃物造成了普遍的环境污染,并可能导致有害化学浸出物释放到海洋生态系统中,特别是当它们破碎成更小的微塑料(v/Fm)时,以及 P. damicornis 碎片的组织组成(例如,与对照组相比,叶绿素和蛋白质减少)。相反,双酚 A 浸出液不会损害 D. pallida 碎片的组织。这些结果表明,暴露于从微塑料中浸出的化学物质会导致微塑料暴露的负面影响,这种影响不同于仅仅由于摄入而产生的物理机制,而且这种影响具有物种特异性。
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来源期刊
Science of the Total Environment
Science of the Total Environment 环境科学-环境科学
CiteScore
17.60
自引率
10.20%
发文量
8726
审稿时长
2.4 months
期刊介绍: The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.
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