Emerging investigator series: microplastic-based leachate formation under UV irradiation: the extent, characteristics, and mechanisms

Collins, Ashton; Ateia, Mohamed; Bhagat, Kartik; Ohno, Tsutomu; Perreault, François; Apul, Onur G.

doi:10.1039/d2ew00423b

Environ. Sci.: Water Res. Technol.

2023

DOI: 10.1039/d2ew00423b

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Emerging investigator series: microplastic-based leachate formation under UV irradiation: the extent, characteristics, and mechanisms

Ashton Collins

Mohamed Ateia

Kartik Bhagat

et al.

Abstract: Microplastics in the aquatic system are among the many inevitable consequences of plastic pollution, which has cascading environmental and public health impacts. Our study aimed at analyzing surface interactions and...

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2024

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Cited by 3 publications

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Effect of Biofouling on the Sorption of Organic Contaminants by Microplastics

Bhagat,

Doussiemo,

Mushro

et al. 2024

Enviro Toxic and Chemistry

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Microplastics in the aquatic environment are susceptible to colonization by surrounding microorganisms, which form biofilms over the microplastic's surface. These biofilm‐laden microplastics can then interact with a diverse array of contaminants. In the present study, biofilms were grown on microplastics in a laboratory setting using Pseudomonas aeruginosa as a model biofilm‐forming bacterium for periods of 5 to 15 days. The sorption of three organic compounds representing different levels of hydrophobicity, namely methylene blue (MB), phenanthrol, and phenanthrene, was used to evaluate the effect of biofilm biomass on the adsorption of organic contaminants to microplastics. The sorption of MB and phenanthrol was found to increase with biofouling time, indicating affinity between these contaminants and the biofilm biomass on the particle. However, the presence of a biofilm did not influence the sorption of phenanthrene on the microplastics. These results suggest that the hydrophobicity of organic contaminants plays a major role in how biofouling of microplastics will influence contaminant sorption by microplastics. For some contaminants, biofilm can enhance the role of microplastics as contaminant vectors. These findings emphasize the need to understand the biomass load on environmental microplastics and the contaminants that associate with it for an accurate representation of the risk associated with microplastics in the environment. Environ Toxicol Chem 2024;00:1–9. © 2024 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

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Effect of Biofouling on the Sorption of Organic Contaminants by Microplastics

Bhagat,

Doussiemo,

Mushro

et al. 2024

Enviro Toxic and Chemistry

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Ecotoxicity of polylactic acid microplastic fragments to Daphnia magna and the effect of ultraviolet weathering

Luangrath,

Na,

Kalimuthu

et al. 2024

Ecotoxicology and Environmental Safety

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Effect of oxygen-containing functional groups on the micromechanical behavior of biodegradable plastics and their formation of microplastics during aging

Huang,

Jiang,

Xie

et al. 2024

Journal of Hazardous Materials

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Emerging investigator series: microplastic-based leachate formation under UV irradiation: the extent, characteristics, and mechanisms

Abstract: Microplastics in the aquatic system are among the many inevitable consequences of plastic pollution, which has cascading environmental and public health impacts. Our study aimed at analyzing surface interactions and...

Cited by 3 publications

References 49 publications

Effect of Biofouling on the Sorption of Organic Contaminants by Microplastics

Effect of Biofouling on the Sorption of Organic Contaminants by Microplastics

Ecotoxicity of polylactic acid microplastic fragments to Daphnia magna and the effect of ultraviolet weathering

Effect of oxygen-containing functional groups on the micromechanical behavior of biodegradable plastics and their formation of microplastics during aging

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