We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Uncovering the release of micro/nanoplastics from disposable face masks at times of COVID-19
Summary
Researchers investigated how disposable face masks release micro- and nanoplastics when exposed to mechanical stress in water, simulating environmental weathering. They found that even minimal deterioration of a single mask could release thousands of microplastic fibers and up to ten billion nanoscale particles. The study provides the first quantitative evidence of how pandemic-related mask waste may contribute to plastic pollution in aquatic ecosystems.
Wearing face masks is a fundamental prevention and control measure to limit the spread of COVID-19. The universal use and improper disposal of single-use face masks are raising serious concerns for their environmental impact, owing to the foregone contribution to plastic water pollution during and beyond the pandemic. This study aims to uncover the release of micro/nanoplastics generated from face mask nonwoven textiles once discarded in the aquatic environment. As assessed by microscopy and flow cytometry, the exposure to different levels of mechanical stress forces (from low to high shear stress intensities) was proved effective in breaking and fragmenting face mask fabrics into smaller debris, including macro-, micro-, and nano-plastics. Even at the low level of fabric deterioration following the first second of treatment, a single mask could release in water thousands of microplastic fibers and up to 10 submicrometric particles, mostly comprised in the nano-sized domain. By contributing to the current lack of knowledge regarding the potential environmental hazards posed by universal face masking, we provided novel quantitative data, through a suitable technological approach, on the release of micro/nanoplastics from single-use face masks that can threaten the aquatic ecosystems to which they finally end-up.
Sign in to start a discussion.
More Papers Like This
Uncovering the Release of Micro/nanoplastics from Disposable Face Masks at Times of COVID-19
Researchers found that disposable face masks release significant amounts of micro- and nanoplastic particles when subjected to water exposure and mechanical stress similar to environmental conditions. This confirms that the massive use of masks during COVID-19 introduced new sources of microplastic pollution into the environment.
Uncovering the Release of Micro/nanoplastics from Disposable Face Masks at Times of COVID-19
This study confirmed that disposable face masks release micro- and nanoplastic particles under environmental conditions including water exposure and mechanical stress. The release was enhanced by simulated weathering, raising concern about the environmental persistence and pollution potential of pandemic-era mask waste.
Kinetic characteristics of microplastic release from commonly used masks in aquatic environment
Researchers tested four mask types (normal, fashion, N95, and disposable surgical) by exposing them to simulated natural water environments over 12 months at 3-month intervals to characterize the kinetics of microplastic release. They found time-dependent release patterns that varied by mask construction, documenting structural degradation and quantifying microplastic fiber shedding as a function of duration, with implications for environmental risk assessment of pandemic-related mask pollution.
Neglected microplastics pollution in global COVID-19: Disposable surgical masks
Researchers found that disposable surgical masks release approximately 360 microplastic particles in still water, with the number increasing significantly under agitation or when exposed to detergents and alcohol. After just two months of natural weathering, the masks became fragile enough to potentially release billions of microplastic fibers upon entering water. The study highlights that pandemic-related mask waste represents a substantial and largely overlooked new source of microplastic pollution.
Release of microfibers from surgical face masks: an undesirable contributor to aquatic pollution
Researchers found that surgical face masks release large quantities of microfibers when exposed to aqueous conditions, identifying masks — whose global use surged during the COVID-19 pandemic — as a significant and underappreciated source of microplastic pollution in aquatic environments.