EMRAS - Environmental Modelling for Radiation Safety

Website: http://www-ns.iaea.org/projects/emras/

The IAEA's EMRAS Programme was launched at its First Combined Meeting which was held at the Agency's Headquarters in Vienna from 1 to 5 September 2003. EMRAS continues some of the work of previous international programmes in the field of radioecological modelling. The activities of EMRAS will focus on areas where uncertainties remain in the predictive capability of environmental models, notably in relation to the consequences of releases of radionuclides to particular types of environment (e.g. urban and aquatic environments) restoration of sites with radioactive residues and impact of environmental radioactivity on non-human species.

Four Combined Meetings of the EMRAS Programme have been held so far at the IAEA's Headquarters in Vienna:

First Combined Meeting

1 to 5 September, 2003

78 participants

from 24 countries

Second Combined Meeting

8 to 11 November, 2004

84 participants

from 24 countries

Third Combined Meeting

21 to 25 November, 2005

106 participants

from 31 countries

Fourth Combined Meeting

6 to 10 November, 2006

101 participants

from 32 countries


Seven Working Groups were established and continue to operate within the EMRAS Programme:

Theme 1 - Radioactive Release Assessment

•  Working Group 1 - Revision of IAEA Technical Report Series No. 364 “Handbook of parameter values for the prediction of radionuclide transfer in temperate environments” working group

•  Working Group 2 - Modelling of tritium and carbon-14 transfer to biota and man working group

•  Working Group 3 - The Chernobyl I-131 release: model validation and assessment of the countermeasure effectiveness working group.

•  Working Group 4 - Model validation for radionuclide transport in the aquatic system “Watershed-River” and in estuaries working group.

Theme 2 - Remediation of sites with radioactive residues

•  Working Group 1 - Modelling of naturally occurring radioactive materials (NORM) releases and of the remediation benefits for sites contaminated by extractive industries (U/Th mining and milling, oil and gas industry, phosphate industry, etc) working group

•  Working Group 2 - Remediation assessment for urban areas contaminated with dispersed radionuclides working group

Theme 3 - Protection of the environment

•  Working Group 1 - Model validation for biota dose assessment