Polylactic Acid-Based Microplastic Particles Induced Oxidative Damage in Brain and Gills of Goldfish Carassius auratus

The effect of 96 h exposure the goldfish Carassius auratus to two different types bioplastic particles, originating from commercial shopping bag (Bag, ~5 mm) and polylactic acid-based (PLA) cup (Cup, ≤5 mm), petroleum-based polyamide particles (PA, 0–180 µm) was studied. All were studied as virgin after simulated UV-degradation (at concentration 30 mg L−1). experiments conducted according OECD 203 test guidelines. toxicity endpoint evaluated in fish brain gills lipid peroxidation (LPO) quantified nmol thiobarbituric acid reactive substances (TBARs) mg−1 protein. results indicated that indicatively compostable PLA Cup induced significant LPO and/or goldfish, contrast Bag PA (in brain, > PA; gills, Bag). all had no on level compared particles. While increase upon PLA-plastic can be transitory long-term perspective, our point necessity a thorough investigation hazard bioplastics at state environmental degradation/weathering.