Exposure and Effects Assessment Essentiality Effects Assessment Forms of metals Exposure and Effects Assessment Toxicokinetics/toxicodynamics Exposure Assessment (bioavailability) and Effects Assessment (ADME and toxicity) 6.2. CHARACTERIZATION OF EXPOSURE Metal exposure assessment includes characterization of the exposure routes and pathways

This section of the Framework provides an overview of how the principles for metals risk assessment apply to ecological risk assessments for terrestrial environments. Receptors typically considered in these assessments include soil invertebrates, plants, and wildlife species. Some assessments also examine effects on microbiota and soil processes. This section of the Framework builds on the information presented in Chapter 2 that lays out issues to be considered during Problem Formulation and that describes metal chemistry associated with soil systems. That information is not repeated here and the reader should refer to Chapter 2 for this information.