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Toxicity of microplastics and released chemicals from single-use surgical face masks to the model aquatic organism, Daphnia magna

Zenodo (CERN European Organization for Nuclear Research) 2022 Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Oluwadamilola Pikuda, Oluwadamilola Pikuda, Oluwadamilola Pikuda, Jun‐Ray Macairan, Nathalie Tufenkji Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Jun‐Ray Macairan, Oluwadamilola Pikuda, Qiqing Chen, Jun‐Ray Macairan, Qiqing Chen, Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Jun‐Ray Macairan, Jun‐Ray Macairan, Laura L. Hernandez, Subhasis Ghoshal, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Jun‐Ray Macairan, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Dimitrios Berk, Dahyun Kyung, Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Qiqing Chen, Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Jun‐Ray Macairan, Jun‐Ray Macairan, Nathalie Tufenkji Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Subhasis Ghoshal, Qiqing Chen, Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Stéphane Bayen, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Qiqing Chen, Subhasis Ghoshal, Stéphane Bayen, Stéphane Bayen, Oluwadamilola Pikuda, Oluwadamilola Pikuda, Lan Liu, Dimitrios Berk, Dimitrios Berk, Nathalie Tufenkji Qiqing Chen, Qiqing Chen, Qiqing Chen, Subhasis Ghoshal, Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Qiqing Chen, Xiaoyu Gao, Qiqing Chen, Nathalie Tufenkji Stéphane Bayen, Xiaoyu Gao, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Stéphane Bayen, Stéphane Bayen, Qiqing Chen, Nathalie Tufenkji Qiqing Chen, Qiqing Chen, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Subhasis Ghoshal, Jun‐Ray Macairan, Nathalie Tufenkji Xiaoyu Gao, Qiqing Chen, Qiqing Chen, Dimitrios Berk, Nathalie Tufenkji Subhasis Ghoshal, Nathalie Tufenkji Nathalie Tufenkji Subhasis Ghoshal, Stéphane Bayen, Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji Nathalie Tufenkji

Summary

Researchers subjected single-use surgical face masks to simulated environmental weathering and tested the resulting microplastics, leached chemicals, and their mixture against Daphnia magna across acute (48-hour) and chronic (21-day) exposures on three life stages. Chemicals alone and the mixture reduced survival and reproduction in neonates and juveniles, while microplastics alone had no survival effects, indicating that chemical leachates rather than particles are the primary toxic agent from face mask degradation to aquatic invertebrates.

Body Systems

Cardiovascular Reproductive

Models

Daphnia

The COVID-19 pandemic has caused significant increase in the production, usage, and disposal of single-use face masks. It is estimated that more than 1.5 trillion single-use face masks are used per year. While these face masks have played an important role to curb the spread of the coronavirus, their indiscriminate disposal in the environment is becoming a cause for concern. Several studies have shown that the masks can release millions of microplastics and nanoplastics, as well as other harmful chemicals when exposed to environmental conditions. However, the knowledge on the impacts of the released microplastics and chemicals to aquatic organisms is still limited. This study investigates both the acute and chronic impacts of the microplastics and chemicals on Daphnia magna. The test material was obtained via a simulated laboratory weathering experiment, and divided into three groups (microplastics alone, chemicals alone and mixture of microplastics and chemicals). The acute tests were conducted over a 48-h period on three different life stages of Daphnia magna (neonates, juveniles, and adults) while the chronic tests were conducted on neonates over a 21-day period. Chemicals alone and mixture of chemicals and microplastics decreased the survival rate of neonates and juveniles. However, microplastics alone had no effects on the survival of the neonates and the chemicals alone had no impacts on the adults. Also, chemicals alone and mixture of chemicals and microplastics significantly decreased survival during 21-day chronic exposure while microplastics alone caused significant sublethal impacts on growth, reproduction, heartbeat rate and swimming behavior. The released chemicals were analyzed using LC-MS and ICP-MS to understand how the chemical composition impacts the observed toxicity. This study shows that the released plastics and chemicals may have different impacts on Daphnia, depending on the type of tests and life stages of Daphnia tested Also see: https://micro2022.sciencesconf.org/427153/document

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