Occurrence patterns tiers
Overview
| Name | EC 2018 Tier 1 | EC 2018 Tier 2 |
|---|---|---|
Apply occurrence pattern percentages |
false |
true |
Substance conversion method |
UseMostToxic |
DrawRandom |
Retain all allocated substances after active substance allocation |
true |
true |
Account for substance authorisations in substance conversions |
false |
true |
Fix duplicate substance allocation inconsistencies |
false |
false |
Use extrapolation rules |
true |
true |
Threshold for extrapolation |
10 |
10 |
Restrict extrapolations to equal MRLs |
true |
true |
Restrict extrapolations to authorised uses |
true |
true |
Impute water concentrations |
true |
true |
Water concentration value (µg/kg) |
0.1 |
0.05 |
Restrict water imputation to the five most toxic substances |
true |
true |
Restrict water imputation to authorised uses |
false |
false |
Scale up use frequency to 100% |
true |
|
Restrict use percentage up-scaling to authorised uses |
true |
EC 2018 Tier 1
| Name | Setting | From input tier | In module |
|---|---|---|---|
| Apply occurrence pattern percentages | false | ||
| Substance conversion method | UseMostToxic | EC 2018 Tier 1 | Concentrations |
| Retain all allocated substances after active substance allocation | true | EC 2018 Tier 1 | Concentrations |
| Account for substance authorisations in substance conversions | false | EC 2018 Tier 1 | Concentrations |
| Fix duplicate substance allocation inconsistencies | false | EC 2018 Tier 1 | Concentrations |
| Use extrapolation rules | true | EC 2018 Tier 1 | Concentrations |
| Threshold for extrapolation | 10 | EC 2018 Tier 1 | Concentrations |
| Restrict extrapolations to equal MRLs | true | EC 2018 Tier 1 | Concentrations |
| Restrict extrapolations to authorised uses | true | EC 2018 Tier 1 | Concentrations |
| Impute water concentrations | true | EC 2018 Tier 1 | Concentrations |
| Water concentration value (µg/kg) | 0.1 | EC 2018 Tier 1 | Concentrations |
| Restrict water imputation to the five most toxic substances | true | EC 2018 Tier 1 | Concentrations |
| Restrict water imputation to authorised uses | false | EC 2018 Tier 1 | Concentrations |
EC 2018 Tier 2
| Name | Setting | From input tier | In module |
|---|---|---|---|
| Apply occurrence pattern percentages | true | ||
| Scale up use frequency to 100% | true | ||
| Restrict use percentage up-scaling to authorised uses | true | ||
| Substance conversion method | DrawRandom | EC 2018 Tier 2 | Concentrations |
| Retain all allocated substances after active substance allocation | true | EC 2018 Tier 2 | Concentrations |
| Account for substance authorisations in substance conversions | true | EC 2018 Tier 2 | Concentrations |
| Fix duplicate substance allocation inconsistencies | false | EC 2018 Tier 2 | Concentrations |
| Use extrapolation rules | true | EC 2018 Tier 2 | Concentrations |
| Threshold for extrapolation | 10 | EC 2018 Tier 2 | Concentrations |
| Restrict extrapolations to equal MRLs | true | EC 2018 Tier 2 | Concentrations |
| Restrict extrapolations to authorised uses | true | EC 2018 Tier 2 | Concentrations |
| Impute water concentrations | true | EC 2018 Tier 2 | Concentrations |
| Water concentration value (µg/kg) | 0.05 | EC 2018 Tier 2 | Concentrations |
| Restrict water imputation to the five most toxic substances | true | EC 2018 Tier 2 | Concentrations |
| Restrict water imputation to authorised uses | false | EC 2018 Tier 2 | Concentrations |