Which statement best describes risk characterization in risk assessment?

• A. The process of integrating hazard identification, exposure, and dose-response to estimate risk; summarizing the overall risk to humans.
• B. The process of collecting data from surveys.
• C. The process of disseminating results to the public.
• D. The process of selecting participants for risk management.

Answer: (A)

Risk characterization is the synthesis step that integrates hazard identification, exposure assessment, and dose–response assessment to estimate and summarize the overall risk to humans. It goes beyond listing each piece of information by combining them to produce a clear picture of how big the risk is, where uncertainty lies, and how variability among individuals or subpopulations affects that risk. This part often includes qualitative and quantitative estimates and discusses data gaps, assumptions, and confidence in the results, helping decision makers understand the real-world implications of the assessment. Data collection from surveys, disseminating results to the public, and selecting participants for risk management are separate activities—data gathering, communication, and study design or decision-making—rather than the integrative synthesis of risk.