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EPA ExpoBox

Exposure Assessment Tools by Routes

Exposure assessment is one of the four major steps in risk assessment; others include hazard identification, dose-response assessment, and risk characterization.

Exposure may be estimated using one of the three exposure routes: inhalation, ingestion, and dermal. Alternatively, exposure assessments may be categorized according to exposure assessment approaches, exposure media, assessment tiers or types, lifestages and populations, or chemical classes.


See information and tools related to inhalation



See information and tools related to ingestion



See information and tools related to dermal

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