Pironti Concetta, Notarstefano Valentina, Ricciardi Maria, Motta Oriana, Giorgini Elisabetta, Montano Luigi
Department of Medicine Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Via S. Allende, 84081 Baronissi, SA, Italy.
Department of Life and Environmental Sciences, DiSVA, Università Politecnica Delle Marche, 60121 Ancona, AN, Italy.
Toxics. 2022 Dec 30;11(1):40. doi: 10.3390/toxics11010040.
The ubiquitous presence of microplastics (MPs) and their health effects is a recent scientific topic. However, the investigation of MPs in human/biological matrices has several limitations due to analytical methods and sample treatment protocols. In this study, the presence of MPs in the urine samples of six volunteers from different cities in the south of Italy (three men and three women) was investigated by Raman microspectroscopy. The analysis pinpointed four pigmented microplastic fragments (4-15 μm size), with irregular shapes, which were characterized in terms of morphology and chemical composition. Polyethylene vinyl acetate (PVA), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE) MPs were found in four samples (PVA and PVC in one female sample and PP and PE in three male samples). This preliminary study suggests that MPs could pass through the gastrointestinal tract and are eliminated through biological processes.
微塑料（MPs）的广泛存在及其对健康的影响是一个近期的科学话题。然而，由于分析方法和样品处理方案的原因，对人体/生物基质中的微塑料进行研究存在若干局限性。在本研究中，通过拉曼光谱法对来自意大利南部不同城市的六名志愿者（三名男性和三名女性）的尿液样本中的微塑料进行了调查。分析确定了四个有颜色的微塑料碎片（尺寸为4 - 15微米），形状不规则，并对其形态和化学成分进行了表征。在四个样本中发现了聚乙酸乙烯酯（PVA）、聚氯乙烯（PVC）、聚丙烯（PP）和聚乙烯（PE）微塑料（一个女性样本中含有PVA和PVC，三个男性样本中含有PP和PE）。这项初步研究表明，微塑料可以穿过胃肠道并通过生物过程排出体外。
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