A combinational threat of micro- and nano-plastics (MNPs) as potential emerging vectors for per- and polyfluoroalkyl substances (PFAS) to human health
Abstract
Micro- and nano-plastics (MNPs) and per- and polyfluoroalkyl substances (PFAS) are prevalent in ecosystems due to their exceptional properties and widespread use, profoundly affecting both human health and ecosystem. Upon entering the environment, MNPs and PFAS undergo various transformations, such as weathering, transport, and accumulation, potentially altering their characteristics and structural dynamics. Their interactions, governed by factors like hydrogen bonding, hydrophobic interactions, Van der Waals forces, electrostatic attractions, and environmental conditions, can amplify or mitigate their toxicity toward human health within ecological conditions. Several studies demonstrate the in vivo effects of PFAS and MNPs, encompassing growth and reproductive impairments, oxidative stress, neurotoxicity, apoptosis, DNA damage, genotoxicity, immunological responses, behavioral changes, modifications in gut microbiota, and histopathological alterations. Moreover, in vitro investigations highlight impacts on cellular uptake, affecting survival, proliferation, membrane integrity, reactive oxygen species (ROS) generation, and antioxidant responses. This review combines knowledge on the co-existence and adsorption of PFAS and MNPs in the environment, defining their combined in vivo and in vitro impacts. It provides evidence of potential human health implications. While significant research originates from China, Europe, and the USA, studies from other regions are limited. Only…
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