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The Release Potential of Microplastics from Face Masks into the Aquatic Environment

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  • Suna Ozden Celik

    (Department of Environmental Protection Technologies, Corlu Vocational School, Tekirdag Namik Kemal University, 59850 Tekirdag, Türkiye)

Abstract

Since the COVID-19 pandemic, a huge number of face masks have been used to prevent the spread of the coronavirus on a global scale. Unfortunately, several studies have reported the presence of used face masks in marine litter in different countries around the world. Face masks produced from synthetic polymers can increase the environmental burden and contradict sustainability. This study aimed to investigate the environmental behavior of face masks when exposed to natural environmental conditions following improper disposal. New and naturally aged surgical and FFP2 masks were exposed to deionized water (DI) and sea water conditions to understand the environmental behavior of face masks when exposed to different environmental conditions. Following natural aging and DI and sea water exposure, face masks were characterized with Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), and compared with new masks. According to the results, the middle layers of both mask types were exposed to more severe degradation. Aging resulted in higher microplastic (MP) release than new masks in DI and seawater for both types of face masks. Compared to new ones, aging and seawater exposure caused 11 to 13 and 14 to 22 times higher MP release from surgical and FFP2 face masks, respectively. Following seawater exposure, aged FFP2 mask released higher amounts of MP (4.36–6.20 × 10 6 ) than aged surgical masks (4.03–5.45 × 10 6 ). According to the results, a significant portion of the released MPs were <10 µm for both types of masks. However, when aged FFP2 masks were exposed to seawater, a remarkable increase was found in the fraction of 10–50 µm and 50–100 µm, suggesting that aged FFP2 masks also became fragmented in seawater conditions. FTIR and SEM analyses confirmed the transformation in the structure and chemical composition of the materials. A significant change was observed in chemical and physical structure of the masks after being exposed to weathering conditions in a relatively short period of time (one month).

Suggested Citation

  • Suna Ozden Celik, 2023. "The Release Potential of Microplastics from Face Masks into the Aquatic Environment," Sustainability, MDPI, vol. 15(19), pages 1-15, September.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:19:p:14293-:d:1249188
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    References listed on IDEAS

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    1. Grigorios L. Kyriakopoulos & Miltiadis G. Zamparas & Vasileios C. Kapsalis, 2022. "Investigating the Human Impacts and the Environmental Consequences of Microplastics Disposal into Water Resources," Sustainability, MDPI, vol. 14(2), pages 1-23, January.
    2. Cheryl Qian Ying Yong & Suresh Valiyaveettil & Bor Luen Tang, 2020. "Toxicity of Microplastics and Nanoplastics in Mammalian Systems," IJERPH, MDPI, vol. 17(5), pages 1-24, February.
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