Long-term dietary exposure and risk of methylmercury in German Children

This standard action is of type: Risks

Total Diet Studies (TDS) are an appropriate method to representatively reflect background occurrence levels of substances in food in a population’s diet. More than 90 % of the diet are covered, the foods are prepared as consumed and pooled to composite samples prior analyses. Next to the representation of the diet in Germany the German TDS (BfR MEAL Study) also elaborated potential differences in occurrences of substances between different types of stratification. Selected foods were sampled in four different regions, two different seasons and/or according to the production type (i.e. organic versus conventional production). The consideration of stratification for the exposure assessment was implemented in the in the TDS module of the Monte Carlo Risk Assessment (MCRA) software.

In this standard action, the differences between stratification related exposure assessments are demonstrated. Consumption data for children in Germany and fictive occurrence data for methyl-mercury are used. The commonly used lower bound (LB) and upper bound (UB) scenarios are used for treatment of censored data. Exposure is calculated applying the Observed Individual Means model. The output is expressed as µg per kg body weight and day for the mean, and the 50th, 90th, 95th, 97.5th, 99th and 99.9th percentile and the contribution from foods or main food groups to total exposure is displayed.

This standard action demonstrates the long-term exposure and risk assessment of methylmercury in fish, seafood, mushrooms and products thereof under application of the lower bound (LB) and upper bound (UB) approach for imputation of censored values. Several options are available to assess dietary exposure either on the overall level or differentiated between regions, seasons and production types (organic/conventional). This standard action uses consumption data for children in Germany and fictive occurrence data for methylmercury.

Table 201 Datasources for Long-term dietary exposure and risk of methylmercury in German Children.
Table Group Name Repository Type

Compounds

Catalogues_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

Effects

Catalogues_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

Foods

Catalogues_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

HazardCharacterisations

Catalogues_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

Populations

Catalogues_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

TotalDietStudy

Catalogues_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

Concentrations

Concentrations_MeHg_FNS_Case_Study_BfR_MCRA-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed

Survey

Consumptions_VELS_2001-2002-1.0.0-alpha.12.zip

Standard Actions/Long-term dietary exposure and risk of methylmercury for German children

Fixed