In this pilot study, microplastic beads (5-50 μm) were tagged with fluorescent dye and introduced to the soil of potted Betula pendula Roth. (silver birch) saplings during the growing season. After five months, root samples were examined using fluorescence- and confocal laser scanning microscopy. This paper presents the first documented indication of the incorporation of microplastic into root tissues of woody plants and discusses the phytoremediation potential of birch in soil with microplastic contamination.
Keywords: Confocal laser scanning microscopy; Fluorescence microscopy; Microplastic; Silver birch; Soil pollution; Tree roots.
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