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Adsorption Behavior and Interaction of Micro-Nanoplastics in Soils and Aquatic Environment
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This review examined how micro- and nanoplastics adsorb environmental pollutants in soil and aquatic environments, acting as vectors that transfer and enhance the bioavailability of contaminants. Aging and weathering processes that alter plastic surface properties were identified as key factors influencing adsorption capacity and pollutant interactions.
A new threat has been unlocked for the past decade is that microplastics and nanoplastics can potentially adsorb other environmental pollutants. Acting as a vector they can transfer and exacerbate the bioavailability of several contaminants in different environmental compartments. The adsorption and interaction can be influenced by several factors including the micro-nanoplastic characteristics and the matrices in contact. Accordingly, it should critically look into the possibilities of natural aging and weathering processes that can alter the plastic properties, which can induce surface assimilation. Despite the investigations carried out so far, the adsorption behavior and interactions and long-term fate still need to be better understood. Consequently, this chapter reviews the current knowledge on the adsorption behavior and interaction of micro and nanoplastics in soils and aquatic environments, including the factors influencing adsorption, the mechanisms and interactions involved, and the impacts of adsorption. The chapter also addresses the current challenges and the methodological gaps in understanding the adsorption behavior and interaction of micro and nanoplastics with possible future research outlooks to fulfill these gaps.
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