Effects of land use on the distribution of soil microplastics in the Lihe River watershed, China

Soil contamination by microplastics (MPs) has gained widespread attention, whose fate may be influenced by land use types. The effects of land use types and the intensity of human activities on the distribution and sources of soil MPs at the watershed scale are unclear. In this study, 62 surface soi...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2023-05, Vol.324, p.138292-138292, Article 138292
Main Authors: Qiu, Yifei, Zhou, Shenglu, Qin, Wendong, Zhang, Chuchu, Lv, Chengxiang, Zou, Mengmeng
Format: Article
Language:English
Subjects:
China
Ecological risk
Environmental Monitoring
Humans
Land use types
Microplastics
Microplastics - analysis
Plastics
Rivers
Sink
Soil
Source
Tea
Water Pollutants, Chemical - analysis
Watershed
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Summary:Soil contamination by microplastics (MPs) has gained widespread attention, whose fate may be influenced by land use types. The effects of land use types and the intensity of human activities on the distribution and sources of soil MPs at the watershed scale are unclear. In this study, 62 surface soil sites in representing five land use types (urban, tea garden, dryland, paddy field and woodland) and 8 freshwater sediment sites were investigated in the Lihe River watershed. MPs were detected in all samples, and the average abundance of soil and sediments was 401.85 ± 214.02 and 222.13 ± 54.66 items/kg, respectively. The soil MPs abundance followed the sequence: urban > paddy field > dryland > tea garden > woodland. Soil MP distribution and MP communities were significant different (p 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2023.138292