What Does FIAM Stand For?

FIAM stands for Free Ion Activity Model

The Free Ion Activity Model (FIAM) is a theoretical framework used to describe the bioavailability of metals in aquatic environments. It posits that only the free, unbound ions of metals are biologically active and capable of interacting with living organisms. By focusing on the concentration of free ions, FIAM provides a more accurate assessment of metal toxicity and interactions in ecological risk assessment and environmental monitoring. This model aids in understanding the impact of metal pollutants on aquatic life and informs regulatory guidelines.