Dag Altin

TL;DR: Cfree reduction through MP sorption was reflected in a corresponding reduction of lethality and bioaccumulation, with no difference observed between ingestible and non-ingestible MP, which indicates that only free dissolved PAHs are significantly bioavailable to copepods under co-exposure conditions with MP-sorbedPAHs.

TL;DR: It is emphasized that the shape and chemical profile of a microplastic can influence its bioavailability and toxicity, drawing attention to the importance of using environmentally relevant microplastics and chemically profiling plastics used in toxicity testing.

TL;DR: Temperature and lipid content are important factors for assessing differences between temperate and Arctic species, and that a delayed response in organisms adapted to low temperatures needs to be corrected for when extrapolating toxicity data from species with other temperature optimums for use in Arctic environments.

TL;DR: The uptake and toxicity of 2 poly(methylmethacrylate)-based plastic nanoparticles (PNPs) with different surface chemistries (medium and hydrophobic) were assessed using aquatic organisms selected for their relevance based on the environmental behavior of the PNPs.

TL;DR: The established culture of C. finmarchicus at the SINTEF/NTNU Sealab, and the use of gene transcription analyses provide excellent tools for improving the understanding of biochemical mechanisms involved in the defense against environmental impacts and the molecular modes of toxicity in this species.