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CSA N288.2

2nd Edition, January 1, 2014

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Guidelines for calculating the radiological consequences to the public of a release of airborne radioactive material for nuclear reactor accidents

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Product Details:

  • Revision: 2nd Edition, January 1, 2014
  • Published Date: January 2014
  • Status: Active, Most Current
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 139
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Type of consequence assessments

This Standard proposes methods for modelling the consequences of accidents at nuclear reactors for safety assessment and real-time emergency response.


1) Models used to assess the consequences of a postulated accident for safety assessment purposes have much in common with those used for a real-time nuclear accident for emergency response purposes, including the calculation of dispersion and air concentrations. However, the two types of models differ in their treatment of source terms and end points.

2) Safety assessment is a prospective activity that includes

a) deterministic and probabilistic calculations carried out for licensing purposes;

b) probabilistic risk assessment for cost-benefit analyses; and

c) deterministic and probabilistic calculations carried out for emergency planning purposes.

3) Emergency response consequence assessment is carried out during a real emergency in support of the protection of the public and the environment. Emergency planning consequence assessment is performed for postulated accidents in support of preparedness activities such as locating reception centres for evacuees and training emergency responders.