Leveraging Epidemiology to Improve Risk Assessment

Area of Science:

• Environmental public health
• Chemical risk assessment
• Environmental epidemiology

Background:

• Biomonitoring reveals widespread chemical exposures, but toxicity data is often lacking.
• Advances in omics technologies generate vast amounts of biological data.
• Current chemical risk assessment paradigms struggle to interpret health relevance of exposures.

Purpose of the Study:

• To highlight the need for integrating human data in chemical risk assessment.
• To illustrate opportunities for using epidemiologic data in place of animal studies.
• To provide recommendations for enhancing the role of epidemiology in risk assessment.

Main Methods:

• Review of the Environmental Protection Agency's Integrated Risk Information System database.
• Analysis of two case studies of chemical assessments.
• Examination of recent scientific advances in omics and human data utilization.

Main Results:

• Epidemiologic data could have replaced or supplemented animal data in dose-response assessments.
• Existing epidemiologic evidence can be better utilized with improved approaches.
• Current risk assessment methods are insufficient for new scientific data.

Conclusions:

• Environmental epidemiology is crucial for modern chemical risk assessment.
• Improved methods are needed to incorporate human data for hazard identification and dose-response estimation.
• Updating risk assessment paradigms is essential for public health protection.