微(纳)米塑料介导下多环芳烃的毒性效应研究进展

Toxic Effects of Polycyclic Aromatic Hydrocarbons Mediated by Micro(nano)Plastics

微(纳)米塑料污染已成为全球关注的新兴污染物,由于其较大的比表面积和强疏水性,可与多环芳烃(PAHs)发生相互作用,改变PAHs的生物有效性.本研究主要总结了微(纳)米塑料对PAHs的吸附-解吸行为及作用机制,阐述了微(纳)米塑料介导下PAHs的生态毒性效应,两者可能产生的毒性包括协同、拮抗或无明显影响作用,这与PAHs的性质、微(纳)米塑料的种类和粒径大小等有关.概括了目前研究中存在的问题,对微(纳)米塑料对PAHs毒性作用影响未来的研究方向进行了展望.

Micro(nano)plastics have become an emerging type of pollutants of global concern.Owing to its larger specific surface area and strong hydrophobicity,micro(nano)plastics can interact with polycyclic aromatic hydrocarbons(PAHs),thereby changing their bioavailability.In this paper,adsorption-desorption behavior on micro(nano)plastics and the mechanisms were summarized.Toxic effects of polycyclic aromatic hydrocarbons mediated by micro(nano)plastics were elaborated,including synergistic and antagonistic effects or no significant impact on organisms,which were related to properties of PAHs,types and sizes of micro plastics.This review provides the current research challenges and some suggestions for future research on this aspect.