Biotransformation of chemicals in water–sediment suspensions: influencing factors and implications for persistence assessment

Abstract

Chemicals’ half-lives derived from biotransformation simulation studies are central metrics for persistence assessment in international regulatory frameworks. To determine the persistence of chemicals released to the aquatic environment, paradigm shifts in recent and ongoing revisions of chemical legislation assign increasing importance to OECD 309 simulation studies. OECD 309 studies were designed to target biotransformation in natural water (pelagic test) or in water amended with sediment (suspension test). Suspension tests bear sev Show more