Microfibers in oceanic surface waters: A global characterization

Giuseppe Suaria, Aikaterini Achtypi, Vonica Perold, Jasmine R. Lee, Andrea Pierucci, Thomas G. Bornman, Stefano Aliani, Peter G. Ryan

Research output: Contribution to journalArticleResearchpeer-review

18 Citations (Scopus)

Abstract

Microfibers are ubiquitous contaminants of emerging concern. Traditionally ascribed to the "microplastics"family, their widespread occurrence in the natural environment is commonly reported in plastic pollution studies, based on the assumption that fibers largely derive from wear and tear of synthetic textiles. By compiling a global dataset from 916 seawater samples collected in six ocean basins, we show that although synthetic polymers currently account for two-thirds of global fiber production, oceanic fibers are mainly composed of natural polymers. μFT-IR characterization of ∼2000 fibers revealed that only 8.2% of oceanic fibers are synthetic, with most being cellulosic (79.5%) or of animal origin (12.3%). The widespread occurrence of natural fibers throughout marine environments emphasizes the necessity of chemically identifying microfibers before classifying them as microplastics. Our results highlight a considerable mismatch between the global production of synthetic fibers and the current composition of marine fibers, a finding that clearly deserves further attention.

Original languageEnglish
Article numberEAAY8493
Number of pages8
JournalScience Advances
Volume6
Issue number23
DOIs
Publication statusPublished - 3 Jun 2020

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