Estimation of Intervention Distances for Urgent Protective Actions Using Comparative Approach of MACCS and InterRAS

Hussain, Mazzammal; Khan, Salah Ud‐Din; Syed, Waqar Adil; Khan, Shahab Ud‐Din

doi:10.1155/2014/874134

Cited by 2 publications

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References 4 publications

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“…In 1978, U.S.NRC gave the idea of generic emergency planning zones which was based on spectrum of accidents, consequences, and probability [7]. Several studies addressing different aspects of radioactivity releases during nuclear emergency situation have been conducted particularly on emergency planning zones [7][8][9][10][11][12][13][14][15][16], radiation doses [17][18][19][20], and intervention distances for protective actions [21].…”

Section: Literature Reviewmentioning

confidence: 99%

Emergency Planning Zones Estimation for Karachi-2 and Karachi-3 Nuclear Power Plants using Gaussian Puff Model

Şahi̇n

Ali

2016

Science and Technology of Nuclear Installations

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Emergency planning zones (PAZ and UPZ) around the Karachi-2 and Karachi-3 nuclear power plants (K-2/K-3 NPPs) have been realistically determined by employing Gaussian puff model and Gaussian plume model together for atmospheric transport, diffusion, and deposition of radioactive material using onsite and regional data related to meteorology, topography, and land-use along with latest IAEA Post-Fukushima Guidelines. The analysis work has been carried out using U.S.NRC computer code RASCAL 4.2. The assumed environmental radioactive releases provide the sound theoretical and practical bases for the estimation of emergency planning zones covering most expected scenario of severe accident and most recent multiunit Fukushima Accident. Sheltering could be used as protective action for longer period of about 04 days. The area about 3 km of K-2/K-3 NPPs site should be evacuated and an iodine thyroid blocking agent should be taken before release up to about 14 km to prevent severe deterministic effects. Stochastic effects may be avoided or minimized by evacuating the area within about 8 km of the K-2/K-3 NPPs site. Protective actions may become more effective and cost beneficial by using current methodology as Gaussian puff model realistically represents atmospheric transport, dispersion, and disposition processes in contrast to straight-line Gaussian plume model explicitly in study area. The estimated PAZ and UPZ were found 3 km and 8 km, respectively, around K-2/K-3 NPPs which are in well agreement with IAEA Post-Fukushima Study. Therefore, current study results could be used in the establishment of emergency planning zones around K-2/K-3 NPPs.

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