The Toxicity of Poly(acrylonitrile-styrene-butadiene) Microplastics toward Hyalella azteca Is Associated with Biofragmentation and Oxidative Stress.

ABSTRACT: Acrylonitrile-butadiene-styrene (ABS) is a thermoplastic copolymer commonly used in the electronics, automotive, and construction industries. In the aquatic environment, the formation of microplastics from larger-sized plastic waste occurs naturally, induced by physical, chemical, and biological processes that promote the aging of these particles. Here, we investigated the interactions between the freshwater amphipod Hyalella azteca and ABS microplastics (10-20 μm) (pristine and after accelerated aging) over 7 days of exposure. At the end of the exposure period, we evaluated the ability of H. azteca to fragment the ABS particles, as well as the changes in its oxidative stress biomarkers (SOD, CAT, MDA, and GST) as the result of ABS exposure. H. azteca promoted a significant fragmentation o

SUBMITTER: Queiroz LG 

PROVIDER: S-EPMC11752492 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature