The process of toxicological risk assessment typically involves four steps:
1. Hazard Identification: Determining whether a substance has the potential to cause harm. 2. Dose-Response Assessment: Establishing the relationship between the dose of the substance and the severity of the toxic effect. 3. Exposure Assessment: Estimating the magnitude, duration, and frequency of human exposure to the substance. 4. Risk Characterization: Integrating the information from the first three steps to describe the overall risk.