土壤学报2026，Vol.63Issue(2)：424-434,11.DOI:10.11766/trxb202504300202
不规范垃圾填埋场土壤-地下水系统中微塑料赋存特征及风险评估
Occurrence Characteristics and Risk Assessment of Microplastics in the Soil-groundwater System of Non-standard Landfill
摘要
Abstract
[Objective]A large amount of plastic waste is produced globally every year,and landfill is the most common way to deal with plastic waste.However,plastic waste that enters landfills will continuously generate microplastics under the influence of physical,chemical,and biological factors,thereby affecting the surrounding ecological environment and human health.[Method]In this study,the occurrence characteristics of microplastics in the soil-groundwater system of a landfill in Taizhou,Zhejiang Province,were investigated,and the ecological risk of microplastics in this area was assessed by pollution load index(PLI),polymer risk index(H),and potential ecological risk index(PERI).[Result]The results showed that the abundance of microplastics was 28 313±7 687 microplastics/kg,7 789±585 microplastics/L,25 660±2 614 microplastics/kg,183±41 microplastics/L in landfill,leachate,soil,and groundwater,respectively.The microplastics were mainly thin film and of a small size(0-50 μm).Also,the polymer composition was mainly polyethylene(PE)and polypropylene(PP).In addition,the microplastic ecological risks of the landfill's waste,soil,leachate,and groundwater were respectively at extremely high risk,high risk,high risk,and medium risk.[Conclusion]Landfill sites,as an important source of microplastics,have potential impacts on the surrounding environment.This study can provide theoretical support for the assessment and control of microplastic pollution in the soil-groundwater system of landfill sites.关键词
微塑料/不规范垃圾填埋场/赋存特征/生态风险Key words
Microplastics/Non-standard landfill/Occurrence characteristics/Ecological risk分类
资源环境引用本文复制引用
杜运田,唐司萌,丁玲,单晓玲,仇欣然,张斌,梁旭军,郭学涛..不规范垃圾填埋场土壤-地下水系统中微塑料赋存特征及风险评估[J].土壤学报,2026,63(2):424-434,11.基金项目
国家重点研发计划项目(2023YFC3711500)资助Supported by the National Key Research and Development Program of China(No.2023YFC3711500) （2023YFC3711500）
