An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

EPA ExpoBox

Exposure Assessment Tools by Lifestages and Populations

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 various population types: general population, residential and consumer, occupational, lifestages, or other potentially highly exposed populations. Alternatively, exposure assessments may be categorized according to exposure assessment approaches, exposure media, exposure routes, assessment tiers and types, or chemical classes.

General PopulationGeneral Population

See information and tools related to the general population

Residential ConsumersResidential Consumers

See information and tools related to residential consumers

Occupational WorkersOccupational Workers

See information and tools related to occupational workers


See information and tools related to lifestages

Highly ExposedHighly Exposed

See information and tools related to highly exposed populations

Top of Page