The contribution of additives to microplastic aquatic toxicity - A testing approach with model additives on selected aquatic organisms - PubMed
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- #microplastics
- #aquatic toxicity
- #additives
- A methodology was developed to differentiate physical (particle) and chemical (additive) effects on micro- and nanoplastics (MNP) toxicity.
- Low-density polyethylene (LDPE), with or without additives and regardless of ageing, showed no significant toxicity to Daphnia magna and Tetrahymena thermophila.
- The inorganic additive ZnO alone caused immobility in D. magna and cytotoxicity in T. thermophila.
- Organic additives (benzotriazole derivative and hindered amine light stabiliser) showed low toxicity in daphnids and no cytotoxicity in T. thermophila.
- Artificial ageing affected additive leaching quantity but not MNP toxicity to the tested organisms.