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Question:
I would like to predict of radiocesium activity in fish and water in the future using the ERICA Tool. How can I do this?

Answer:

_You cannot use the ERICA Tool (or other packages such as RESRAD BIOTA) to make future predictions of water and fish activity concentrations.

How you can address this depends upon the nature of your assessment and available information:

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_1. If you have discharge data you could use the dis\[ersion model available within the ERICA Tool to predict water concentrations (although I suspect from your previous question that this will not be the case._
_2. You have data over the period 1962-2006 - consider analysing these data for time trends and making predictions for water and fish in the future outside of the ERICA Tool. Then input your results into the ERICA Tool to obtain dose rate estimates._
_3. I am unsure if you are considering a freshwater or marine ecosystem? If marine then consider if you can make use of the_ [_Marine dynamic model_|marine dynamic model]_.\_

Answered by Nick Beresford 26/10/2010

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