Understanding exposure time is essential for several reasons:
Dose-Response Relationship: The effects of a toxicant often depend on the duration of exposure. Short-term exposure might result in immediate but temporary symptoms, while long-term exposure could lead to chronic health issues. Bioaccumulation: Prolonged exposure can lead to the accumulation of the substance in the body, potentially causing more severe health effects over time. Threshold Levels: Identifying safe exposure limits often requires understanding the relationship between the exposure time and the severity of toxic effects.