Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Leaching of microplastics by preferential flow in earthworm (Lumbricus terrestris) burrows

Miao Yu, Martine van der Ploeg, Esperanza Huerta Lwanga, Xiaomei Yang, Shaoliang Zhang, Xiaoyi Ma, C.J. Ritsema, Violette Geissen

Environmental Chemistry · 2019

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Summary

Environmental context Microplastics found in soil pose several potential environmental risks. This study shows that microplastics on the soil surface can be ingested by earthworms and transported to the lower soil layers. In this way, microplastics may enter the food chain and find their way into groundwater systems, especially in cases where the water table is shallow. Abstract In the current study, we examine how the activities of earthworms (Lumbricus terrestris) affect microplastic (MP) distribution and concentration in soil, with a focus on low density polyethylene (LDPE). We also want to determine if MPs can be flushed out with water. We used a laboratory sandy soil column (polyvinyl chloride tube) experimental set-up and tested five different treatments: (1) treatment with just soil

Source type
Peer-reviewed study
DOI
10.1071/en18161
Catalogue ID
BFmoakvrxk-fqqs1d
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