Dietary Exposure Potential Model (DEPM)
A model and database system, termed the Dietary Exposure Potential Model (DEPM), correlates extant food information in a format for estimating dietary exposure. The resident database system includes several national, government-sponsored food intake surveys and chemical residue data from monitoring programs. A special feature of the DEPM is the use of recipes developed specifically for exposure analysis that link consumption survey data for prepared foods to the chemical residue information, which is normally reported for raw food ingredients. Consumption in the model is based on 11 food groups containing approximately 820 exposure core food (ECF) items with similar basic ingredients, established from mean values of cosumption of over 6700 food items commonly identified in food surveys. The summary ECF databases are aggregated in a fashion to allow analyst selection of demographic factors, such as age/gender groups, geographical regions, ethnic groups and economic status. Daily intake is estimated by the model based on mean values of residues reported for over 350 pesticides and environmental contaminants.
intake, ingestion, modeling, food, exposure