Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios

Emergency planning zones (EPZs) for Ghana’s potential reactor site have been determined based on an assessment of atmospheric dispersion and dose calculations for multiple accident scenarios involving a VVER-1200 reactor. The analysis was performed using the Radiological Assessment System for Conseq...

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Main Authors: Alberta Blay, Sylvester Attakorah-Birikorang, Esi Awuah
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Science and Technology of Nuclear Installations
Online Access:http://dx.doi.org/10.1155/stni/8876882
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author Alberta Blay
Sylvester Attakorah-Birikorang
Esi Awuah
author_facet Alberta Blay
Sylvester Attakorah-Birikorang
Esi Awuah
author_sort Alberta Blay
collection DOAJ
description Emergency planning zones (EPZs) for Ghana’s potential reactor site have been determined based on an assessment of atmospheric dispersion and dose calculations for multiple accident scenarios involving a VVER-1200 reactor. The analysis was performed using the Radiological Assessment System for Consequence Analysis (RASCAL) 4.3.4 code to calculate doses at a downwind distance of 80 km from the site for wet and dry depositions. The highest estimated doses, consistent with the Fukushima accident releases, were used to define the EPZs. The study identified the distances for two main EPZs: precautionary action zones (PAZs) and urgent protective zones (UPZs). The estimated PAZ is 5 km distance around the power plant, requiring evacuation of individuals before radionuclide release begins in the event of a severe accident to prevent deterministic health effects. The UPZ extends approximately 24 km downwind, necessitating the evacuation of affected individuals depending on the release conditions, with priority given to pregnant women, children, and nursing mothers to reduce stochastic health effects. Remaining individuals may need to shelter in their residences or designated centers for two days and take iodine thyroid blocking (ITB) agents within 5–64 km. These EPZs align with the International Atomic Energy Agency (IAEA) recommendations, providing a foundation for policymakers to evaluate the feasibility of proposed emergency measures in developing a robust emergency preparedness and response plan.
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spelling doaj-art-df7de013e4c9417691a62cd46eed682e2025-08-20T03:55:58ZengWileyScience and Technology of Nuclear Installations1687-60832025-01-01202510.1155/stni/8876882Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident ScenariosAlberta Blay0Sylvester Attakorah-Birikorang1Esi Awuah2Ghana Atomic Energy CommissionSchool of Nuclear and Allied SciencesDepartment of Civil EngineeringEmergency planning zones (EPZs) for Ghana’s potential reactor site have been determined based on an assessment of atmospheric dispersion and dose calculations for multiple accident scenarios involving a VVER-1200 reactor. The analysis was performed using the Radiological Assessment System for Consequence Analysis (RASCAL) 4.3.4 code to calculate doses at a downwind distance of 80 km from the site for wet and dry depositions. The highest estimated doses, consistent with the Fukushima accident releases, were used to define the EPZs. The study identified the distances for two main EPZs: precautionary action zones (PAZs) and urgent protective zones (UPZs). The estimated PAZ is 5 km distance around the power plant, requiring evacuation of individuals before radionuclide release begins in the event of a severe accident to prevent deterministic health effects. The UPZ extends approximately 24 km downwind, necessitating the evacuation of affected individuals depending on the release conditions, with priority given to pregnant women, children, and nursing mothers to reduce stochastic health effects. Remaining individuals may need to shelter in their residences or designated centers for two days and take iodine thyroid blocking (ITB) agents within 5–64 km. These EPZs align with the International Atomic Energy Agency (IAEA) recommendations, providing a foundation for policymakers to evaluate the feasibility of proposed emergency measures in developing a robust emergency preparedness and response plan.http://dx.doi.org/10.1155/stni/8876882
spellingShingle Alberta Blay
Sylvester Attakorah-Birikorang
Esi Awuah
Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios
Science and Technology of Nuclear Installations
title Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios
title_full Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios
title_fullStr Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios
title_full_unstemmed Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios
title_short Development of Emergency Planning Zones for Ghana’s Proposed Nuclear Plant Based on Radioactivity Releases From Hypothetical Accident Scenarios
title_sort development of emergency planning zones for ghana s proposed nuclear plant based on radioactivity releases from hypothetical accident scenarios
url http://dx.doi.org/10.1155/stni/8876882
work_keys_str_mv AT albertablay developmentofemergencyplanningzonesforghanasproposednuclearplantbasedonradioactivityreleasesfromhypotheticalaccidentscenarios
AT sylvesterattakorahbirikorang developmentofemergencyplanningzonesforghanasproposednuclearplantbasedonradioactivityreleasesfromhypotheticalaccidentscenarios
AT esiawuah developmentofemergencyplanningzonesforghanasproposednuclearplantbasedonradioactivityreleasesfromhypotheticalaccidentscenarios