A review on micro- and nanoplastics in humans: Implication for their translocation of barriers and potential health effects

人类健康 污染物 神经毒性 化学 毒性 环境化学 生物 毒理 环境卫生 医学 生态学 有机化学
作者
Cui-Lan Bai,Yan Wang,Yu-Ling Luan,Si-Nan Huang,Liang‐Ying Liu,Ying Guo
出处
期刊:Chemosphere [Elsevier]
卷期号:361: 142424-142424 被引量:1
标识
DOI:10.1016/j.chemosphere.2024.142424
摘要

As emerging contaminants, micro- and nanoplastics (MNPs) can absorb and leach various toxic chemicals and ultimately endanger the health of the ecological environment and humans. With extensive research on MNPs, knowledge about MNPs in humans, especially their translocation of barriers and potential health effects, is of utmost importance. In this review, we collected literature published from 2000 to 2023, focusing on MNPs on their occurrence in humans, penetrating characteristics in the placental, blood-brain, and blood-testis barriers, and exposure effects on mammalian health. The characteristics and distributions of MNPs in human samples were analyzed, and the results demonstrated that MNPs were ubiquitous in most human samples, except for kidneys and cerebrospinal fluid. In addition, the phenomenon of MNPs crossing barriers and their underlying mechanisms were discussed. We also summarized the potential factors that may affect the barrier crossing and health effects of MNPs, including characteristics of MNPs, exposure doses, administration routes, exposure durations, co-exposure to other pollutants, and genetic predisposition. Exposure to MNPs may cause cytotoxicity, neurotoxicity, and developmental and reproductive toxicity in mammals. People are encouraged to reduce their exposure to MNPs to prevent these adverse health effects. Finally, we discussed the shortcomings of current research on MNPs in humans, providing a valuable reference for understanding and evaluating the potential health risks from MNP exposure in mammals, including humans.
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