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Micro- and nano-plastics pollution and its potential remediation pathway by phytoremediation.

Planta 2023
Xiaomin Gong, Guanwei Shi, Dongsheng Zou, Zhibin Wu, Pufeng Qin, Yang Yang, Xi Hu, Lu Zhou, Yaoyu Zhou

Summary

This review proposed phytoremediation as a viable approach for removing micro- and nano-plastics from contaminated environments, reviewing evidence that plants can take up particles through roots and translocate them to shoots, and discussing the potential for hyperaccumulating species to be used in soil and water decontamination.

This review proposed that phytoremediation could be applied for the decontamination of MPs/NPs. Micro- and nano-plastics (MPs < 5 mm; NPs < 100 nm) are emerging contaminants. Much of the recent concerns have focused on the investigation of their pollution and their potential eco-toxicity. Yet little review was available on the decontamination of MPs/NPs. Recently, the uptake of MPs/NPs by plants has been confirmed. Here, in view of the current knowledge, this review introduces MPs/NPs pollution and highlights the updated information about the interaction between MPs/NPs and plants. This review proposed that phytoremediation could be a potential possible way for the in situ remediation of MPs/NPs-contaminated environment. The possible mechanisms, influencing factors, and existing problems are summarized, and further research needs are proposed. This review herein provides new insights into the development of plant-based process for emerging pollutants decontamination, as well as the alleviation of MPs/NPs-induced toxicity to the ecosystem.

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