Presence of microplastics in human stomachs

IF 2.2 3区医学 Q1 MEDICINE, LEGAL

Forensic science international Pub Date : 2024-10-09 DOI:10.1016/j.forsciint.2024.112246

Sait Özsoy , Sedat Gündogdu , Sermet Sezigen , Esra Tasalp , Durmuş Arinc Ikiz , Ahmet Erkan Kideys

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Abstract

This study presents the first definitive confirmation of microplastic presence in the human stomach, based on samples from 26 cadavers. 97 microplastic particles were extracted from stomach contents, across all 26 individuals, revealing a universal prevalence of microplastics in the cadavers. Morphological analysis of the extracted particles unveiled distinct shapes, with fibers constituting the majority (52.04 %), followed by fragments (39.80 %) and films (8.16 %). The average quantity of microplastics per individual was calculated to be 9.4 ± 10.4 particles, with an estimated daily intake of microplastics at 32.2 particles per day. These figures are lower than estimates derived from both daily microplastic consumption alone and notably, those calculated from stool analyses. Our study also suggests that the breakdown or transformation of microplastics cannot be ruled out during their passage through the digestive tract. Although the number of microplastics in stomach contents reported in this study was even lower than the daily microplastic intake rates reported in the literature, it provides conclusive evidence for the presence of microplastics in the human stomach and provides important preliminary data in terms of the risks that may arise for human health.

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人类胃中存在微塑料

这项研究基于 26 具尸体样本，首次明确证实了人类胃部存在微塑料。研究人员从所有 26 具尸体的胃内容物中提取了 97 个微塑料颗粒，发现微塑料在尸体中普遍存在。对提取出的微粒进行形态学分析后发现，这些微粒形状各异，其中纤维占大多数（52.04%），其次是碎片（39.80%）和薄膜（8.16%）。根据计算，每个人的平均微塑料数量为 9.4 ± 10.4 个微粒，每天的微塑料摄入量估计为 32.2 个微粒。这些数字低于仅根据每日微塑料消耗量得出的估计值，尤其低于根据粪便分析得出的估计值。我们的研究还表明，不能排除微塑料在通过消化道的过程中被分解或转化的可能性。尽管这项研究报告的胃内容物中微塑料的数量甚至低于文献中报告的每日微塑料摄入量，但它为人类胃中存在微塑料提供了确凿的证据，并为人类健康可能面临的风险提供了重要的初步数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Forensic science international 医学-医学：法

CiteScore

5.00

自引率

9.10%

发文量

285

审稿时长

49 days

期刊介绍： Forensic Science International is the flagship journal in the prestigious Forensic Science International family, publishing the most innovative, cutting-edge, and influential contributions across the forensic sciences. Fields include: forensic pathology and histochemistry, chemistry, biochemistry and toxicology, biology, serology, odontology, psychiatry, anthropology, digital forensics, the physical sciences, firearms, and document examination, as well as investigations of value to public health in its broadest sense, and the important marginal area where science and medicine interact with the law. The journal publishes: Case Reports Commentaries Letters to the Editor Original Research Papers (Regular Papers) Rapid Communications Review Articles Technical Notes.