微塑料老化机理及其环境行为影响研究进展

Research progress on the aging mechanism of microplastics and its environmental behavior

综述了国内外学者对微塑料(MPs)的不同老化过程、机理以及其老化前后对污染物吸附能力变化的研究进展。总结了其老化后的毒性以及其自身添加剂的释放行为对环境的影响,揭示了MPs表面生物膜的形成过程及生物膜与老化MPs之间的相互作用。最后,基于目前对于MPs及其老化的研究现状,提出在未来应重视老化微塑料对环境的危害以及加强老化微塑料与重金属的联合毒性对于动物、高等植物的影响研究的建议。

This paper reviews the different aging processes and mechanisms of MPs by domestic and foreign scholars, and the research progress on the change of pollutant adsorption capacity before and after aging.The toxicity after aging and the release behavior of its own additives on the environment were summarized.The formation process of biofilm on the surface of MPs and the interaction between biofilm and aging MPs were revealed.Finally, based on the current research status of MPs and their aging, it is suggested that attention should be paid to the harm of aging microplastics to the environment and the combined toxicity of aging microplastics and heavy metals to animals and higher plants in the future.