0
Article Tier 2 Human Health Effects Sign in to save

Environmental hazard of polypropylene microplastics from disposable medical masks: acute toxicity towards Daphnia magna and current knowledge on other polypropylene microplastics

Microplastics and Nanoplastics 2022 74 citations

AI summary Read the abstract

Researchers assessed the acute toxicity of polypropylene microplastics derived from disposable medical masks to Daphnia magna water fleas. They found that mask-derived microplastics caused toxic effects at environmentally relevant concentrations. The study raises concerns that the massive increase in disposable face mask use during the pandemic has introduced a new source of harmful microplastic pollution into aquatic environments.

Polymers
Models

The online version contains supplementary material available at 10.1186/s43591-021-00020-0.

More Papers Like This

Article Tier 2

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

AI summary Read the abstract

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.

Article Tier 2

Evaluation of the toxicological effects of microparticles from disposable masks on the test organism Oreochromis niloticus

AI summary Read the abstract

Researchers exposed Nile tilapia to microparticles shed from disposable COVID-19 face masks and found that polypropylene and polyester fibers from improperly discarded masks caused subchronic toxicity after 14 days of waterborne exposure. The study highlights how the massive increase in single-use mask disposal during the pandemic created a new and poorly recognized source of microplastic pollution in aquatic environments. Fish health effects from mask-derived microplastics add to growing concerns about the ecological legacy of pandemic-era waste.

Article Tier 2

An ecotoxicological perspective of microplastics released by face masks

AI summary Read the abstract

This review assessed the ecotoxicological hazard of microplastics derived from face masks, which were produced in unprecedented quantities during the COVID-19 pandemic. The authors identified significant uncertainties about real-world impact concentrations and called for standardized testing to better characterize the toxicity of face mask-derived microplastics to aquatic and terrestrial organisms.

Article Tier 2

Impact of face mask microplastics pollution on the aquatic environment and aquaculture organisms

AI summary Read the abstract

This review examines how the widespread use of disposable face masks during the COVID-19 pandemic has contributed to microplastic pollution in aquatic environments. Researchers found that mask materials made from polymers like polypropylene break down into microplastics through UV radiation and weathering, causing harm to aquatic organisms including reduced growth, neurotoxicity, and increased mortality. The study recommends developing biodegradable alternatives to plastic-based face masks to reduce environmental impact.

Article Tier 2

Uptake and toxicity of micro-/nanoplastics derived from naturally weathered disposable face masks in developing zebrafish: Impact of COVID-19 pandemic on aquatic life

AI summary Read the abstract

Researchers exposed developing zebrafish to micro- and nanoplastics created by naturally weathering disposable face masks in water. They found that these particles caused physical malformations, increased cell death, and triggered oxidative stress in the fish embryos and larvae. The findings suggest that improperly discarded pandemic masks breaking down in waterways could pose real threats to aquatic life during early development.

Research digests by email

When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.

Email me about

Share this paper