Estimation of the time-dependent radioactive source-term from the Fukushima nuclear power plant accident using atmospheric transport modelling

Caesium-137 and Iodine-131 radionuclides released after the Fukushima Dai-ichi nuclear power plant accident in March 2011 were detected at monitoring stations throughout the world. Using the CTBT radionuclide data and the assumption that the Fukushima accident was the only source of these radionucli...

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Veröffentlicht in:	Journal of environmental radioactivity 2012-12, Vol.114, p.10-14
Hauptverfasser:	Schöppner, Michael, Plastino, Wolfango, Povinec, Pavel P., Wotawa, Gerhard, Bella, Francesco, Budano, Antonio, De Vincenzi, Mario, Ruggieri, Federico
Format:	Artikel
Sprache:	eng
Schlagworte:	Accidental release Accidents Air Pollutants, Radioactive - analysis Atmospheric transport modelling Atmospherics Caesium-137 California Cesium Radioisotopes - analysis Fukushima accident Fukushima Nuclear Accident Hawaii Iodine Radioisotopes - analysis Iodine-131 Japan Modelling Models, Theoretical monitoring nuclear power Nuclear power generation Nuclear power plants Radiation Monitoring radionuclides Source-term Transport
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Beschreibung
Zusammenfassung:	Caesium-137 and Iodine-131 radionuclides released after the Fukushima Dai-ichi nuclear power plant accident in March 2011 were detected at monitoring stations throughout the world. Using the CTBT radionuclide data and the assumption that the Fukushima accident was the only source of these radionuclides, it was possible to estimate their time-dependent source-term fourteen days following the accident by using atmospheric transport modelling. A reasonable agreement was obtained between the modelling results and the estimated radionuclide release rates from the Fukushima accident.
ISSN:	0265-931X 1879-1700
DOI:	10.1016/j.jenvrad.2011.11.008