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Toxicity of aged and unaged conventional or biodegradable mulching films microplastics to the estuarine bivalve Scrobicularia plana
Summary
This study assessed whether aging changes the toxicity of microplastics from conventional and biodegradable mulching films across soil and aquatic environments, testing both fresh and UV-aged particles on a range of organisms. Aging altered toxicity profiles of both conventional and biodegradable microplastics, with effects varying by polymer type and test species.
Human activities, and more specifically agricultural and horticultural activities, generate plastic pollution of soils, particularly by microplastics (MP). This pollution by MP is now ubiquitous and raises the question of its impact on the health of ecosystems in different compartments along the soil/aquatic continuum. The objective of this study is to assess the impact of aging on the toxicity of conventional (Polyethylene, PE) and biodegradable (Polylactic Acid/Polybutylene Adipate Terephthalate, PLA/PBAT) mulching films microplastics on a key organism of the estuarine compartment, an environment at the soil/water interface. The estuarine bivalve Scrobicularia plana was exposed for 21 days to two environmental concentrations (0.008µg/L and 100µg/L) of microplastics ( Also see: https://micro2024.sciencesconf.org/558522/document
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