Oxidative stress dynamics in Hyalella azteca under sub-chronic exposure to naturally aged polypropylene microplastics

• Published in: Aquatic toxicology Vol. 281; p. 107303
• Main Authors: Prado, Caio César Achiles, Queiroz, Lucas Gonçalves, de Paiva, Teresa Cristina Brazil, Pompêo, Marcelo, Ando, Rômulo, Rani-Borges, Bárbara
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.04.2025
• Subjects: Amphipoda - drug effects; Animals; Ants; Biomarker; depuration; enzymes; freshwater; Freshwater toxicology; Hyalella azteca; Invertebrate; microplastics; Microplastics - toxicity; mortality; oxidative stress; Oxidative Stress - drug effects; Plastic pollution; pollutants; pollution; Polypropylene; polypropylenes; Polypropylenes - toxicity; species; subchronic exposure; toxicity; ultraviolet radiation; Water Pollutants, Chemical - toxicity; Invertebrate; Biomarker; Polypropylene; Freshwater toxicology; Plastic pollution

•The natural process of photoaging altered the structure of polypropylene particles.•Aged plastic polymers are more toxic to non-target organisms.•Microplastics represent serious risks to organisms at the base of the food chain.•Sublethal concentrations showed increased oxidative stress levels after...