Long-term management of contaminated freshwater bodies and catchments. Decision making exercise with the MOIRA system

Abstract

Abstract. In the mid-long-term after a nuclear accident, the contamination of drinking water sources, fish and other aquatic foodstuffs, irrigation supplies and people's exposure during recreational activities may create considerable public concern, even though dose assessment may in certain situations indicate lesser importance than for other sources, as clearly experienced in the aftermath of accidents like Chernobyl. The MOIRA system is designed to allow for a reliable assessment of the long-term evolution of the radiological situation and of possible alternative rehabilitation strategies, including an objective evaluation of their social, economic and ecological impacts in a rational and comprehensive manner. MOIRA also features a decision analysis methodology, making use of multi-attribute analysis, which can take into account the preferences and needs of different types of stakeholders. A decision-making exercise regarding such problems, in which MOIRA has been be used as a decision support tool, was organised in Spain involving the organizations responsible for emergency management and the affected services, as well as local and regional stakeholders and several international observers. The system resulted very helpful in assessing the overall situation and the alternative management strategies and also facilitated the interaction between agencies which reached a better common understanding of all related issues.

Emergency and rehabilitation preparedness at a community level: the Montbéliard experience

“…The CAPM is further exploring the potential of linking the tools developed and tested within the Project with the Community Geographic Information System. In this perspective, the next step will be a simulation exercise with the MOIRA Decision Support System (Gallego et al, 2009) to identify the problems associated with the potential contamination of the regional water ecosystem.…”

Computerised Decision Support Systems for the management of freshwater radioecological emergencies: assessment of the state-of-the-art with respect to the experiences and needs of end-users

“…The EURANOS/CSN exercise (Gallego et al, 2009) provided several useful lessons and conclusions. Some of these concern technical issues relevant to the use of a CDSS that we have previously discussed.…”

“…Several releases of the GUI for RODOS-HDM have been developed (Gofman et al, 1996;Donchyts et al, 2008). The interface provides the possibility of easily accessing all the information necessary to run the individual models as well as displaying the results in a manner suitable for decision-makers.…”

“…A decision-making exercise (Gallego et al, 2009) regarding the long-term management of contaminated freshwater bodies was organised in Spain, in the context of the Annual Exercises and Simulations Program 2007 of the Nuclear Safety Council (CSN). The exercise was a demonstration activity included in the EURANOS Project (Raskob, 2007) in the 6th Euratom Framework Research Programme.…”

Εκτίμηση Και Χωροχρονική Διασπορά Ραδιονουκλιδίων Στο Υδάτινο Περιβάλλον

“…προσομοίωση της μόλυνσης που προκύπτει από ένα σοβαρό ατύχημα που οδηγεί σε έκλυση 137 Cs και 90 Sr στη λεκάνη απορροής του ποταμού Tagus της Ισπανίας, στα πλαίσια άσκησης λήψης αποφάσεων σχετικά με τη μακροπρόθεσμη διαχείριση ραδιομόλυνσης γλυκού νερού σε περιφερειακό επίπεδο [Gallego et al, 2009].…”