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It is hoped that the database will provide an evolving source of up to date information to those conducting assessments and developing/maintaining models as more data are added.


Your assistance in populating the database with any suitable data on concentration ratios that you may have would be welcomed.

The links below will take you to the user guidance document for the database, advice on how to convert tissue specific to whole-organism activity concentrations, and various files providing advice on how organisms have been categorised within the database.

(info)  The help file to the online database can be accessed


The help file is regularly updated, version 1.12 (15/09/2011) is the current version.


(info)  How to categorise terrestrial species by database wildife group and as ICRP RAPS (contains information for all species included in the database to date). Version 16th September 2011.  A useful link for confirming/finding any new scientific names added to the database can be found on the National Biodiversity Gateway. Type species name into search box (can be common name) and on the results page select Taxonomic information for Scientific Name.


- contains some useful links.

(info)  How to convert tissue specific activity concentrations to wholebody values.

(info) Spreadsheet enabling analyses of summarised datasets. ADDED 29-May-2013

(info) We advise that you use Internet Explorer to access the database.