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Distribution and characteristics of Microplastics in leachate and underneath soil of two informal landfills

文献类型：期刊论文

作者Ma, Jun8; Ma, Ming8; Li, Jiangshan5,6,7; Yang, Qirui4; Wan, Yong5,6,7; Zhao, Kai3; Zhang, Yi2; Liu, Lei5,6,7; Fei, Xunchang1
刊名WASTE MANAGEMENT
出版日期2025-03-01
卷号195页码:155-166
关键词Microplastics Informal landfill Migration mechanism Underneath soil Leachate
ISSN号0956-053X
DOI10.1016/j.wasman.2025.02.002
英文摘要Microplastics (MPs), an emerging pollutant, have garnered global attention as significant environmental concerns. Landfills are the major sources of MPs. However, research on the distribution and characteristics of MPs in leachate and underneath soil of informal landfills remains limited. This study investigated the abundance, polymer type, size, and morphology of MPs in 6 leachate samples and 18 underneath soil samples at different depths from two informal landfills. The ranges of MPs abundance in leachate and underneath soil from landfills were 4,010-33,213 items/Land 592-870 to 47,819 items/kg, related to the landfilled waste composition. MPs size between 20 and 100 mu m accounted for the highest proportion (70 %). The fragmentation coefficient alpha in the underneath soil was higher than that in the leachate, indicating smaller MPs were more likely to migrate into underneath soil after filtration. The fibrous MPs proportion was below 22 %, while the fragmented MPs was more than 78 %. Large fibrous MPs were detected in the underneath soil in landfill A. Polyethylene Terephthalate (PET), Polyurethane (PU) and Polystyrene (PS) were the predominant MPs polymers types in leachate and underneath soil. Polypropylene (PP) was primarily concentrated in the upper and middle underneath soil layers, and Polyurethane (PU) was predominantly in the middle and lower layers. Principal component analysis (PCA) results indicated that geographical factors significantly influenced the distribution and characteristics of MPs. This study revealed the distribution of MPs in leachate and underneath soil at different depths, providing a valuable reference for the risk assessment of MPs pollution.
资助项目Key Research and Development Project of Hubei Province[2023BCB074] ; Youth Innovation Promotion Association CAS[2021327] ; National Natural Science Fund for Excellent Young Scientists[52322810] ; China Postdoctoral Science Foundation[2022M720633] ; Basic Research Projects of Liaoning Provincial Education Department[LJ212410151024] ; National Natural Science Foundation of China[52301412] ; Natural Science Foundation of Liaoning Province[2022-BS-100]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001424530100001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/37095]  
专题中科院武汉岩土力学所
通讯作者Fei, Xunchang
作者单位1.Nanyang Technol Univ, Sch Civil & Environm Engn, Nanyang Ave, Singapore 639798, Singapore
2.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Dalian Maritime Univ, Dept Informat Sci & Technol, Liaoning Key Lab Marine Sensing & Intelligent Dete, Dalian 116026, Peoples R China
4.Dalian Maritime Univ, Houston Int Inst, Dalian 116026, Peoples R China
5.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China
6.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China
7.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
8.Dalian Maritime Univ, Coll Transportat Engn, Dalian 116026, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Jun,Ma, Ming,Li, Jiangshan,et al. Distribution and characteristics of Microplastics in leachate and underneath soil of two informal landfills[J]. WASTE MANAGEMENT,2025,195:155-166.
APA Ma, Jun.,Ma, Ming.,Li, Jiangshan.,Yang, Qirui.,Wan, Yong.,...&Fei, Xunchang.(2025).Distribution and characteristics of Microplastics in leachate and underneath soil of two informal landfills.WASTE MANAGEMENT,195,155-166.
MLA Ma, Jun,et al."Distribution and characteristics of Microplastics in leachate and underneath soil of two informal landfills".WASTE MANAGEMENT 195(2025):155-166.

入库方式： OAI收割

来源：武汉岩土力学研究所

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