Occurrence modules
The basic occurrence data are concentrations for substances in foods, sometimes specified separately for a focal food as focal food concentrations. In some cases concentration limits are used as a stand-in when data are missing.
Concentration data are recalculated (if needed) as active substance concentrations in modelled-foods. If substance concentrations are not specified directly for the active substances, then they are converted using substance conversions and/or specified authorised occurrence patterns. The composition of mixed samples in total diet studies is described in total diet study sample compositions. Food extrapolation rules specify if insufficient data for a food can be suppleted with data from another food. From these basic data the list of modelled-foods is derived.
Active substance concentrations in modelled-foods are modelled in concentration models, optionally allowing for occurrence pattern models. In addition, processing factors and unit variability factors can be provided for further use in dietary exposure assessment.
- Concentration distributions
- Concentration limits
- Concentration models
- Concentrations
- Deterministic substance conversion factors
- Dust concentration distributions
- Focal food concentrations
- Food extrapolations
- Modelled foods
- Occurrence frequencies
- Occurrence patterns
- Processing factors
- Single value concentrations
- Substance authorisations
- Substance approvals
- Substance conversions
- Total diet study sample compositions
- Unit variability factors