Metals in microplastics: determining which are additive, adsorbed, and bioavailable,Environmental Science: Processes & Impacts

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Metals in microplastics: determining which are additive, adsorbed, and bioavailable
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2021-3-3 , DOI: 10.1039/d1em00017a
Charlotte Catrouillet _{1,

2,

3,

4,

5} , Mélanie Davranche _{1,

2,

3,

4,

5} , Imane Khatib _{1,

2,

3,

4,

5} , Corentin Fauny _{1,

2,

3,

4,

5} , Aurélie Wahl _{1,

2,

3,

4,

5} , Julien Gigault _{1,

2,

3,

4,

5}

Affiliation

Microplastics from the North Atlantic Gyre deposited on Guadeloupe beaches were sampled and characterized. A new method is developed to identify which elements were present as additives in these microplastics. The method used both acidic leaching and acidic digestion. Several elements (Al, Zn, Ba, Cu, Pb, Cd, Mn, Cr) were identified as pigments. Furthermore, some elements used as additives to plastics (especially the non-essential elements) seem to contribute to most of the acidic leaching, suggesting that these additives can leach and adsorb onto the surface microplastics, becoming bioavailable. Based on the acidic leaching element content, only Cd should represent a danger for fish when ingested. However, further studies are needed to determine the potential synergetic effect on health caused by the ingestion of several elements and microplastics.

中文翻译：

微塑料中的金属：确定可添加，可吸附和可生物利用的金属

对沉积在瓜德罗普岛海滩上的北大西洋回旋区的微塑料进行了采样和表征。开发了一种新方法来鉴定哪些元素在这些微塑料中作为添加剂存在。该方法同时使用了酸性浸出和酸性消化。几种元素（Al，Zn，Ba，Cu，Pb，Cd，Mn，Cr）被确定为颜料。此外，一些用作塑料添加剂的元素（尤其是非必需元素）似乎对大多数酸性浸出有贡献，表明这些添加剂可浸出并吸附到表面微塑料上，成为可生物利用的。根据酸性浸出元素的含量，食入镉仅对鱼类构成危险。然而，

更新日期：2021-03-10

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