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Impacts of conventional and biodegradable microplastics on the earthworm Eisenia andrei

Zenodo (CERN European Organization for Nuclear Research) 2024
Venla Forsell, Salla Selonen, Vili Saartama, Raisa Turja, Raisa Turja, Jari Haimi

Summary

Researchers compared the ecotoxicological effects of conventional low-density polyethylene microplastics (PE-MPs) and biodegradable polybutylene adipate terephthalate microplastics (PBAT-BD-MPs) on earthworms (Eisenia andrei) across a range of concentrations in an eight-week reproduction test. Both polymer types were assessed for impacts on survival, reproduction, growth, and oxidative stress in soil organisms.

Polymers
LDPE PE
Body Systems
Reproductive
Models
Invertebrate other

Microplastic (MP) contamination of soils has become a critical environmental concern. Conventional plastics are mainly used in agricultural practices, but the use of biodegradable materials has increased. However, the effects of these polymers on the environment are poorly understood. The objective of this study was to assess and compare the ecotoxicological effects of mulching film-based microplastics, conventional low-density polyethylene microplastics (PE-MPs), and biodegradable polybutylene adipate terephthalate microplastics (PBAT-BD-MPs) on the earthworm Eisenia andrei. The measured parameters were survival, reproduction, growth, and oxidative stress. The experimental setup included a standard eight-week earthworm reproduction test with seven different microplastic concentrations (0 Also see: https://micro2024.sciencesconf.org/559482/document

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