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Planned reference and intervention levels inFinland

Published online by Cambridge University Press:  25 April 2013

R. Mustonen

Abstract

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In Finland, Radiation and Nuclear Safety Authority (STUK) is the competent authority andthe national warning point with respect to bilateral and international agreements. STUKhas drafted proposals for new guides for intervention levels in different phases of anemergency to be adopted by the Ministry of Interior (MoI) in Finland. These guides arewritten separately for early phase and intermediate phase of a radiological emergency.STUK selected 20 mSv effective residual dose from all exposure pathways during the firstyear of an emergency as the reference level. This overall goal has been supplemented withthe following general guidance; if a projected dose without protective measures is duringthe first year: (1) higher than 10 mSv, it is necessary to perform protective measures;radiation expose is dominant in decision making, (2) 1–10 mSv, protective measures areusually justified but other factors effect decision making, (3) below 1 mSv, theprotective measures may be carried out especially if they are easily feasible; otherfactors are dominant in decision making. More specific criteria are given for separatecountermeasures as a projected dose in a certain time period or as an operationalintervention level (OIL) in a quantity which can be directly measured (external dose rate,magnitude of surface contamination, concentration level) or as a trigger (such as plantconditions). This paper presents the main intervention levels and criteria to be used in aradiological emergency for members of the public.

Keywords

Radiological emergencyintervention levelscriteriapublicdecision making
Type
Research Article
Information
Radioprotection , Volume 48 , Issue 5: First NERIS Platform Workshop – Preparedness fornuclear and radiological emergency response and recovery: Implementation of ICRPrecommendations , 2013 , pp. S85 - S92
Copyright
© EDP Sciences, 2013

References

ICRP Publication 103 (2007) The 2007 Recommendations of the International Commission on Radiological Protection, Ann. ICRP 37 (2-4).
ICRP Publication 109 (2009a) Application of the Commission’s Recommendations for the Protection of People in Emergency Exposure Situations, Ann. ICRP 39 (1).
ICRP Publication 111 (2009b) Application of the Commission’s Recommendations to the Protection of People Living in Long-term Contaminated Areas after a Nuclear Accident or a Radiation Emergency, Ann. ICRP 39 (3).
STUK (2011) STUK VAL-GUIDES 1 AND 2: Protective measures in early and intermediate phases of a nuclear or radiological emergency (drafts not published).
Council Directive 96/29/EURATO M (1996) Laying down basic safety standards for the protection of the health of workers and the general public against the dangers arising from ionizing radiation, Official Journal of the European Communities, No L 159.