Environmental Protection Agency policy and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. Appendix 2B. Pica Data Sources Detailed Ventilation Rate Data 4. Formulae for Total Body Surface Area. PART I Rates of Ingestion of Beef and Dairy Products Summary of National Surveys Summary of Local Recreational Surveys Mean Total Fish Consumption by Species Total Fish Consumption by Demographic Variables Definitions of Pica Used in the Research Literature Soil Ingestion According to Age Estimates of Soil Ingestion from Dermal Contact Surface Area by Body Part for Adults m2 Expectation of Life at Birth: to Body Weights of Adults kilograms Body Weights of Children kilograms Major Time Use Activity Categories Summary of Sensitivity Analysis Results for Example Summary of Probabilistic Analysis Results for Example The activities under each of these functions are supported by and respond to the needs of the various program offices.
In relation to the third function, EAG sponsors projects aimed at developing or refining techniques used in exposure assessments. The purpose of this document is to provide statistical data on the various factors used in assessing exposure.
Additionally, a number of specific exposure scenarios are identified and recommendations are provided for default parameter values to be used when appropriate site- specific data are not available.
The recommended values are based solely on our interpretations of the available data.. In many situations differ- ent values may be appropriate to use in consideration of policy, precedent or other factors. The document is published in the three-ring binder for- mat so that it can be easily updated as new information on these factors becomes available.
Michael A. It was prepared in response to requests from many EPA program and regional offices for additional guidance on how to select values for exposure factors. The purpose of this handbook is to provide a summary of the available data on various factors used in assessing exposure. Additionally, a number of specific exposure scenarios are identified with recommendations for default values to use when site-specific data are not available.
