Document Detail


Deposition in chiba prefecture, Japan, of fukushima daiichi nuclear power plant fallout.
MedLine Citation:
PMID:  23274822     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
ABSTRACT: Radioactivity from the Fukushima Daiichi Nuclear Power Plant (F-1NPP) accident in deposition samples has been monitored at the National Institute of Radiological Sciences (NIRS) in Chiba Prefecture, Japan, located about 220 km south-southwest of the F-1NPP. Sampling was carried out from 15 March 2011, two to three times a day for 10 d and then once a day until 22 April 2011. Gamma-ray spectrometry of fallout deposition samples revealed the presence of I, I, Te, Cs, and Cs. The largest deposition was observed during 7:00-16:00 on 21 March. The estimated total deposition densities at NIRS were 1.40 × 10 Bq m for I, 4.12 × 10 Bq m for Te, 1.45 × 10 Bq m for Cs, and 1.48 × 10 Bq m for Cs (corrected to 11 March 2011). The obtained densities of Cs and Cs were also supported by the accumulated amount of Cs and Cs in soil near the deposition sampling site. For the vertical profile of those radionuclides in soil at NIRS, about 94% of the total deposition was distributed in the top 10 mm depth on 26 April 2011.
Authors:
Nobuyoshi Ishii; Keiko Tagami; Hyoe Takata; Kazuhiro Fujita; Isao Kawaguchi; Yoshito Watanabe; Shigeo Uchida
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Health physics     Volume:  104     ISSN:  1538-5159     ISO Abbreviation:  Health Phys     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2012-12-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985093R     Medline TA:  Health Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  189-94     Citation Subset:  IM    
Affiliation:
*Research Center for Radiation Protection, National Institute of Radiological Sciences, Anagawa 4-9-1, Inage, Chiba 263-8555, Japan.
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