Implication of microplastic toxicity on functioning of microalgae in aquatic system

Microplastics (MPs) released from both primary and secondary sources affect the functioning of aquatic system. These MPs and components leached, can interact with aquatic organisms of all trophic levels, including the primary producers, such as microalgae. Considering the ecological value of microal...

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Bibliographic Details
Published in:Environmental pollution (1987) 2022-09, Vol.308, p.119626-119626, Article 119626
Main Authors: Parsai, Tanushree, Figueiredo, Neusa, Dalvi, Vivek, Martins, Marta, Malik, Anushree, Kumar, Arun
Format: Article
Language:English
Subjects:
Bioremediation technology
Microalgae
Microplastics
Mixture
Risk
Toxicity
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Summary:Microplastics (MPs) released from both primary and secondary sources affect the functioning of aquatic system. These MPs and components leached, can interact with aquatic organisms of all trophic levels, including the primary producers, such as microalgae. Considering the ecological value of microalgae and the toxicological effects of MPs towards them, this review provides: (1) a detailed understanding of the interactions between MPs and microalgae in the complex natural environment; (2) a discussion about the toxic effects of single type and mixtures of plastic particles on the microalgae cells, and (3) a discussion about the impacts of MPs on various features of microalgae -based bioremediation technology. For this purpose, toxic effects of MPs on various microalgal species were compiled and plastic components of MPs were ranked on the basis of their toxic effects. Based on available data, ranking for various plastic components was found to be: Polystyrene (PS) (rank 1) > Polyvinyl Chloride (PVC) > Polypropylene (PP) > Polyethylene (PE) (rank 4). Furthermore, the review suggested the need to understand joint toxicity of MPs along with co-contaminants on microalgae as the presence of other pollutants along with MPs might affect microalgae differently. In-depth investigations are required to check the impact of MPs on microalgae-based wastewater treatment technology and controlling factors. [Display omitted] •Polystyrene microplastics pose the highest risk.•Mode of action of MPs to algae is mainly size-dependent.•Microplastic impact removal of pollutants in microalgae based wastewater treatment.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2022.119626