Page History

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Technical issues related to the ERICA Tool (on Facilia website)

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Posted: 17/12/2010

How can you differentiate dose from sediment from that from water?

From:
Marko Černe
Jožef Stefan Institute
Slovenia

Question:

RESRAD-BIOTA calculates the dose to biota separately from water and sediment? In ERICA we can not distinguish between sediment and water dose rates. It would be an option just to run ERICA separately for water and separately for sediment, but it is still not possible due to sediment calculation using default Kd? Is RESRAD-BIOTA more appropriate for such purpose?

Answer:

RESRAD-BIOTA does report the external dose rate from sediment (Levels 2 and 3). The ERICA Tool reorts a combined external dose rate. However, you can determine the external dose rate from sediment in the ERICA Tool. To do this enter the water activity concentrations as 0. If you do this the (assuming you do not enter reference organism activity concentrations) the reported dose rates will be the external dose rate from sediment only. Similarly if you want to estimate the dose rate from water only, enter the sediment activity concentration as 0.

Answered by Nick Beresford 17/12/2010

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Posted: 14/12/2010

CRs and occupancy factors for fish in the ERICA Tool

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