Accuracy of professional judgments for dermal exposure assessment using deterministic models

Area of Science:

• Occupational Health
• Industrial Hygiene
• Exposure Science

Background:

• Accuracy of exposure judgments is often low, especially for dermal exposures where data is scarce.
• Quantitative validation for dermal exposure scenarios is limited.
• Occupational health practitioners may lack experience and comfort with dermal exposure assessments.

Purpose of the Study:

• To assess the accuracy of dermal exposure judgments made by U.S. occupational health practitioners.
• To evaluate how additional training and data influence judgment accuracy.
• To identify needs for improving dermal exposure assessment practices.

Main Methods:

• Collected dermal exposure judgments from 90 U.S. occupational health practitioners in a workshop setting.
• Assessed accuracy against quantitative exposure banding categories from the American Industrial Hygiene Association (AIHA).
• Provided progressive training and scenario-specific information on dermal exposure.

Main Results:

• Practitioners showed low experience and comfort with dermal exposure assessments despite general training.
• Participants consistently overestimated dermal exposure risks without specific quantitative data.
• Accuracy improved significantly when scenario-specific dermal and surface-loading data were provided.

Conclusions:

• There is a clear need for enhanced training and education for practitioners in dermal exposure assessment.
• Further research should analyze default loading values and improve dermal exposure models.
• Improved data availability and assessment tools are crucial for accurate dermal exposure evaluations.