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. 2022 Jul 12;319:115741. doi: 10.1016/j.jenvman.2022.115741

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Fig. 6 — Microfiber and particles shedding from new face masks. (A). Microfiber; (B). Microplastics. (C). Numbers of microfibers and microplastics. Asterisk indicates statistical significance (p < 0.05) between the two types.