The International Commission on Radiological Protection first set out general principles for planning intervention after an accident over short times and generally near to accidents in ICRP Publication 40 (1984). This document updates and extends the earlier publication and includes quantitative guidance on intervention levels. This guidance covers the introduction of such protective actions over very short times, their introduction and continuation following periodic review over protracted timescales lasting perhaps years and intervention over larger areas. All accidents are different, as are the approaches of national organizations having responsibility for response to an accident. It is intended that these general guidelines should be translated into appropriate emergency response plans by competent national authorities.
Concepts, Quantities and Basic Principles for Intervention.
The basic quantities. Special concepts for intervention. Justification. Optimisation. Intervention.
Application of the Principles for Protective Actions. Categorisation of Radiological Emergencies for Planning Intervention.
Types of radiological emergencies. Exposure pathways. Temporal and spatial aspects of radiological emergencies.
Derivation of Intervention Levels.
Intervention at the source. Control of access. Sheltering. Evacuation. Administration of stable iodine. Personal decontamination. Injury management. Intervention in food chain and drinking water. Relocation. Decontamination of structures and land surfaces.
Emergency Response Planning.
General. The role of intervention levels in emergency response planning. Lost sources.
Summary of Recommended Intervention Levels.
References. Annex A:: Protection of individuals who are involved in intervention. Annex B:: The control of foodstuffs - an example of generic optimisation. Annex C:: Relocation - an example of generic optimisation. 2 illus, 19 line drawings.
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