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EPA ExpoBox

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Exposure Assessment Tools by Approaches

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

Exposure assessment is "the process of estimating or measuring the magnitude, frequency, and duration of exposure to an agent, along with the number and characteristics of the population exposed. Ideally, it describes the sources, routes, pathways, and uncertainty in the assessment."

- See IPCS, 2004 Glossary of Key Exposure Assessment Terminology (PDF) (122 pp, 951 K, About PDF) Exit developed by the International Programme on Chemical Safety

Exposure may be estimated using one of three approaches:

Direct MeasurementDirect Measurement

See information and tools related to direct measurement (Point-of-Contact) or personal monitoring

 

Indirect EstimationIndirect Estimation

See information and tools related to indirect estimation or scenario evaluation

 

Expo ReconstructionExposure Reconstruction

See information and tools related to exposure reconstruction or biomonitoring and reverse dosimetry

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