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Environmental hazard of polypropylene microplastics from disposable medical masks [Elektronski vir] : acute toxicity towards Daphnia magna and current knowledge on other polypropylene microplasticsJemec Kokalj, Anita ...The COVID-19 pandemic has increased the use of disposable plastics, including medical masks, which have become a necessity in our daily lives. As these are often improperly disposed of, they ... represent an important potential source of microplastics in the environment. We prepared microplastics from polypropylene medical masks and characterised their size, shape, organic chemical leaching, and acute toxicity to the planktonic crustacean Daphnia magna. The three layers of the masks were separately milled and characterised. Each of the inner frontal, middle filtering, and outer layers yielded different types of microplastics: fibres were obtained from the inner and outer layer, but irregular fragments from the middle layer. The shape of the obtained microplastics differed from the initial fibrous structure of the intact medical mask layers, which indicates that the material is deformed during cryo-milling. The chemical compositions of plastics-associated chemicals also varied between the different layers. Typically, the inner layer contained more chemicals related to antimicrobial function and flavouring. The other two layers also contained antioxidants and their degradation products, plasticisers, cross-linking agents, antistatic agents, lubricants, and non-ionic surfactants. An acute study with D. magna showed that these microplastics do not cause immobility but do physically interact with the daphnids. Further long-term studies with these microplastics are needed using a suite of test organisms. Indeed, studies with other polypropylene microplastics have shown numerous adverse effects on other organisms at concentrations that have already been reported in the environment. Further efforts should be made to investigate the environmental hazards of polypropylene microplastics from medical masks and how to handle this new source of environmental burden.Source: Microplastics and nanoplastics. - ISSN 2662-4966 (Vol. 2, Jan. 2022, str. 1-15)Type of material - e-articlePublish date - 2022Language - englishCOBISS.SI-ID - 92061443
Author
Jemec Kokalj, Anita |
Dolar, Andraž |
Drobne, Damjana |
Marinšek, Marjan, kemijski inženir |
Dolenec, Matej, 1974- |
Škrlep, Luka |
Strmljan, Gregor |
Mušič, Branka |
Sever Škapin, Andrijana
Topics
COVID-19 pandemic |
plastics-associated chemicals |
Daphnia magna |
fibres |
fragments |
nanofibres |
polypropylene microplastics |
single-use plastic |
pandemija COVID-19 |
kemikalije dodane plastiki |
vodna bolha |
vlakna |
delci nepravilnih oblik |
nanovlakna |
polipropilenska mikroplastika |
plastika za enkratno uporabo
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Author | Jemec Kokalj, Anita ... |
Title | Environmental hazard of polypropylene microplastics from disposable medical masks [Elektronski vir] : acute toxicity towards Daphnia magna and current knowledge on other polypropylene microplastics |
Publication date | 2022-01-04 |
COBISS.SI-ID | 92061443 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Renewable materials and healthy environments research and innovation centre of excellence | InnoRenew CoE | 739574 |
European Commission |
Integrativna zoologija in speleobiologija | P1-0184-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Gradbeni objekti in materiali | P2-0273-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Geookolje in geomateriali | P1-0195-2018 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Vpliv okoljsko relevantne nano- in mikro-plastike na kopenske nevretenčarje | J1-2482-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Jemec Kokalj, Anita | 24447 |
Dolar, Andraž | 51859 |
Drobne, Damjana | 11155 |
Marinšek, Marjan, kemijski inženir | 14115 |
Dolenec, Matej, 1974- | 21372 |
Škrlep, Luka | 27939 |
Strmljan, Gregor | 51144 |
Mušič, Branka | 24724 |
Sever Škapin, Andrijana | 12521 |
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