epr-method (2003) - IAEA Publications - International Atomic Energy ...

4.2.7. Assessing the initial phase (A7 elements)
Response objectives:
(1) To appraise the magnitude and development of hazardous conditions throughout the emergency in order to identify new hazards and refine
the strategy for response (4.66).
(2) To carry out radiation monitoring and environmental sampling and assessment in order to identify new hazards and refine the strategy for
response (4.67).
(3) To provide all relevant response organizations, throughout the period of the emergency, with information about emergency conditions,
emergency assessments and protective actions recommended and undertaken (4.68).
A7 - ASSESSING THE INITIAL PHASE Threat category Responsibility
Elements I II III IV V O L N
A7.1 Arrange to characterize the extent and significance of any abnormal exposures or contamination,
initiate mitigatory and protective actions on the site, identify members of the public potentially exposed,
and communicate the recommended protective actions to the appropriate off-site response organizations
(4.69).
A7.2 Arrange to assess abnormal facility conditions, exposures and releases; radiological conditions on
and off the site and actual or potential exposures to the public. Use the assessments for mitigatory action
by the operator (Element A3.6), emergency classification (Element A2.5), urgent protective actions on the
site, protection of workers, and recommendations for urgent protective actions to be taken off the site
(Element A4.4). Include access to instruments displaying those parameters that can be measured or
observed in a radiation emergency and form the basis for the EALs used to classify events (see Element
A2.5). Take into account the expected response of instrumentation or systems at the facility under
abnormal conditions (4.70).
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