多孔介质中微塑料的环境行为研究进展

微塑料的环境污染问题已成为当前国内外研究的前沿热点之一，近年来土壤和地下水系统中微塑料的环境行为研究得到越来越多的关注.在论述多孔介质中微塑料来源和危害的基础上，聚焦国内外学者在微塑料环境行为方面的研究，综合评述了微塑料稳定性及其在多孔介质中运移行为的最新进展，重点介绍了物理、化学和生物三方面因素的影响及作用机制.从微塑料对其他污染物之间的吸附/解吸作用以及共运移行为两个方面汇总分析了微塑料和其他污染物间相互作用的最新研究进展.今后需要在不同类型微塑料、多因素耦合效应以及微塑料与微生物之间的相互作用等方面进一步深入研究，以期系统掌握多孔介质中微塑料的运移行为及作用机制.

Review on the environmental behaviors of microplastics in porous media

Microplastics (MPs) pollution is among the global environmental concerns and has become one of the frontier research. Increasing attention has been paid to the environmental behaviors of MPs in soil and groundwater system in recent years. Based on a brief summary of the sources and hazard of MPs, this paper mainly focused on the research progress in MPs environmental behaviors, and the latest progress in the stability and transport behaviors of MPs in porous media was reviewed, with emphasis on the influence and mechanism of physical, chemical and biological factors. Besides, adsorption/desorption of pollutants on/from MPs and their cotransport were also summarized to discuss the interaction between MPs and other pollutants. To systematically understand the transport behaviors and mechanisms of MPs in porous media, further research should address different MPs types, multi-factor coupling effect, and the interaction between MPs and microorganisms, etc.