Surgical masks improperly disposed of are threatening our oceans

Surgical masks adopted during the COVID-19 pandemic pollute the ocean by the billions, releasing millions of microplastics each.

@AdamHuntTT
Published Wed, Feb 9 2022 4:01 AM CST   |   Updated Mon, Mar 7 2022 2:29 PM CST

A new study exploring the impact of these masks has been published in the journal Environmental Science and Technology Letters.

Surgical masks improperly disposed of are threatening our oceans 01 | TweakTown.com

The improper disposal of surgical masks, which have seen a drastic increase in usage owing to the ongoing COVID-19 pandemic, is a source of serious microplastic pollution. Researchers from the City University of Hong Kong (CityU) estimate they contribute to seriously polluting more than 54,800 Olympic-sized swimming pools worth of seawater annually.

"Polypropylene (PP) is the main material widely used in surgical masks. It is a kind of commodity plastic that can break down under the effects of heat, wind, ultraviolet radiation, and ocean currents, eventually forming microplastics," said Dr. Henry He Yuhe, Assistant Professor in CityU's School of Energy and Environment (SEE) and a member of the State Key Laboratory of Marine Pollution (SKLMP).

Global demand for surgical masks reached an estimated 129 billion per month by 2020, and it has been estimated that 1.56 billion masks made their way into the ocean in 2020. The team determined that a mask weighing about three grams releases approximately 3,000 microplastics in simulated seawater conditions over nine days. They estimate the complete decomposition of a mask would release between 0.88 million and 1.17 million microplastics.

You can read more from the study here.

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NEWS SOURCES:phys.org, doi.org

Adam grew up watching his dad play Turok 2 and Age of Empires on a PC in his computer room, and learned a love for video games through him. Adam was always working with computers, which helped build his natural affinity for working with them, leading to him building his own at 14, after taking apart and tinkering with other old computers and tech lying around. Adam has always been very interested in STEM subjects, and is always trying to learn more about the world and the way it works.

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