The Screening Model for Environmental Assessment CROM (Código de cRiba para evaluaciOn de iMpacto), was born as a computational tool implementing the more complex models included in the Safety Report Series No 19 (SRS-19) of the International Atomic Energy Agency, for the transport of radionuclides in the environment, produced as a discharge in an installation, and all their associated parameters. The development of the tool was performed by the CIEMAT and the Polytechnic University of Madrid and co-sponsored by CIEMAT, ENRESA and IAEA. The different CROM versions can be freely downloaded here.

Several versions of the CROM code have been produced since 2007. The latest one being CROM 8, which allows the integrated assessments of effective doses for humans and absorbed doses for biota. CROM 8 includes default data for 163 radionuclides for humans, from which 63 have data for biota. Two sets of Reference Animals and Plants are also available, one from ICRP and accepted by the IAEA and another from ERICA. The code doesn’t include the screening levels (tiers) included in the SRS-19 for humans or in the ERICA-Tool for biota. The code allows performing assessments in rivers, lakes, and marine environments and in contaminated atmosphere and soils.

Actually, the Open Platform CROM (OP-CROM) is being developed, a flexible tool which would allow the implementation of any model, which would be able to run under different computer platforms (operative system and computer architecture) and which would use and produce every data and parameter as separate text files, in opposition of using an established database as was the case in the CROM family.