Hazard characterisations settings

Calculation settings

Table 140 Calculation settings for module Hazard characterisations.
Name Description

Risk type

The type of exposure considered in the assessment; acute (short term) or chronic (long-term).

Target level

Select to express hazard characterisations at external or internal exposure level.

Method

Choose method for computing the hazard characterisations: from in-vivo or in-vitro points of departure or both.

Expression type

Specifies how hazard characterisations are expressed: as BMD, as NOAEL, or the expression type is ignored.

Selection method in case of multiple candidate hazard characterisations

Choose either the most toxic (default) or an aggregated hazard characterisation when in nominal runs there are multiple available candidates. In uncertainty runs, multiple candidates are always resampled.

Impute missing hazard characterisations

If selected, missing hazard characterisations are imputed based on Munro NOELs or on other available points of departure.

Imputation method

Imputation of Hazard characterisations: use low percentile (P5) or unbiased central estimate from either the Munro set or the available POD collection.

Use BMDs from dose response models

If selected, preferably BMDs from dose response models will be used. Only if these are not available, other POD data are used.

Use inter-species conversions

If selected, inter-species conversion factors ill be used (default value, e.g. 10, or data).

Use intra-species factors

If selected, intra-species conversion factors will be used (default value, e.g. 10, or data).

Uncertainty settings

Table 141 Uncertainty settings for module Hazard characterisations.
Name Description

Resample intra-species factor

Specifies whether intra-species factors are resampled from a parametric uncertainty distribution.

Resample hazard characterisations or RPFs

Specifies whether to resample the hazard characterisations or relative potency factors. Requires hazard characterisation or RPF uncertainty to be quantified in DoseResponseModelsUncertain or RelativePotencyFactorsUncertain tables.