Atmospheric input of super(137)Cs and super(239,240)Pu isotopes in Korea after the Fukushima nuclear power plant accident

Caesium isotopes ( super(134)Cs and super(137)Cs) and super(239,240)Pu in rainwater and dry deposition have been analyzed by Korea Research Institute of Standards and Science (KRISS) since the Fukushima nuclear power plant (NPP) accident in March 2011. The concentrations of super(239,240)Pu and supe...

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Bibliographic Details
Published in:Applied radiation and isotopes 2014-05, Vol.87, p.53-56
Main Authors: Oh, Jung-Suk, Lee, Sang-Han, Choi, Jong-Ki, Lee, Jong-Man, Lee, Kyung-Bum, Park, Tae-Soon
Format: Article
Language:English
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Summary:Caesium isotopes ( super(134)Cs and super(137)Cs) and super(239,240)Pu in rainwater and dry deposition have been analyzed by Korea Research Institute of Standards and Science (KRISS) since the Fukushima nuclear power plant (NPP) accident in March 2011. The concentrations of super(239,240)Pu and super(137)Cs in the rainwater are 2.6 plus or minus 1.0 to 15 plus or minus 3 mu Bq/kg and 0.01 to 0.36 mBq/kg, respectively. The concentrations are concordant to those observed before the Fukushima NPP accident, on the other hand, the monthly depositional flux of super(239,240)Pu and super(137)Cs are much lower than the amounts observed after Fukushima NPP accident and in Monaco in 1998-2001. This confirms that the Fukushima NPP accident caused no significant impact in Korea.
ISSN:0969-8043
DOI:10.1016/j.apradiso.2013.11.099