– Plutonium From Fukushima Detected in Lithuania (EX-SKF, Jan. 1, 2012):
Not to show that the amounts were significant (they weren’t) but to note that plutonium out of the Fukushima reactors did indeed travel far and wide, contrary to many nuclear experts (particularly the kind that live in Japan) have said.
What’s more, the authors of the paper seem to think that plutonium came from the spent fuel.
Interesting. Does anyone have access to the full paper?
From PubMed.gov (US National Library of Medicine), emphasis is mine:
J Environ Radioact. 2011 Dec 27. [Epub ahead of print]
Radionuclides from the Fukushima accident in the air over Lithuania: measurement and modelling approaches.
Lujanien? G, By?enkien? S, Povinec PP, Gera M.
SourceEnvironmental Research Department, SRI Center for Physical Sciences and Technology, Savanoriu 231, 02300 Vilnius, Lithuania.
Abstract
Analyses of (131)I, (137)Cs and (134)Cs in airborne aerosols were carried out in daily samples in Vilnius, Lithuania after the Fukushima accident during the period of March-April, 2011. The activity concentrations of (131)I and (137)Cs ranged from 12 ?Bq/m(3) and 1.4 ?Bq/m(3) to 3700 ?Bq/m(3) and 1040 ?Bq/m(3), respectively. The activity concentration of (239,240)Pu in one aerosol sample collected from 23 March to 15 April, 2011 was found to be 44.5 nBq/m(3). The two maxima found in radionuclide concentrations were related to complicated long-range air mass transport from Japan across the Pacific, the North America and the Atlantic Ocean to Central Europe as indicated by modelling. HYSPLIT backward trajectories and meteorological data were applied for interpretation of activity variations of measured radionuclides observed at the site of investigation. (7)Be and (212)Pb activity concentrations and their ratios were used as tracers of vertical transport of air masses. Fukushima data were compared with the data obtained during the Chernobyl accident and in the post Chernobyl period. The activity concentrations of (131)I and (137)Cs were found to be by 4 orders of magnitude lower as compared to the Chernobyl accident. The activity ratio of (134)Cs/(137)Cs was around 1 with small variations only. The activity ratio of (238)Pu/(239,240)Pu in the aerosol sample was 1.2, indicating a presence of the spent fuel of different origin than that of the Chernobyl accident.