Title :
Radionuclides from the Fukushima accident in Europe - Modelling the air mass transport
Author :
Lujaniene, G. ; Bycenkiene, S. ; Sciglo, T. ; Povinec, Pavel P. ; Gera, M. ; Bartok, J. ; Gazak, M.
Author_Institution :
Environ. Res. Dept., SRI Center for Phys. Sci. & Technol., Vilnius, Lithuania
Abstract :
Measurements of airborne radioactive aerosol concentrations of 131I, 137Cs and 134Cs were carried out in daily samples after the Fukushima disaster during the period of March - April, 2011. Rather diluted activities were detected in Vilnius on 23 March, 2011. The two maxima of activity concentrations were found which most probably are related to the complicated air masses transport. Activity concentrations of 131I and 137Cs ranged from 12 mBq/m3 and 1.4 mBq/m3 to 3700 mBq/m3 and 1040 mBq/m3, respectively. Small variations in the activity ratio of 134Cs/137Cs (around 0.9) in measured samples were found. Results were compared with the data obtained during the Chernobyl accident. Modeling of long range air masses transport indicated a rather complicated pathway of radioactive cloud transfer across the Pacific and the North America to the Europe.
Keywords :
aerosols; fission reactor accidents; radioactive pollution; radioisotopes; 131I; 134Cs; 137Cs; AD 2011 03 to 04; Chernobyl accident; Europe; Fukushima accident; Vilnius; activity concentrations; air mass transport; airborne radioactive aerosol concentrations; radioactive cloud transfer; radionuclides; Accidents; Aerosols; Atmospheric measurements; Atmospheric modeling; Dispersion; Terrestrial atmosphere; Trajectory; 131I; 134Cs; 137C; Aerosol; Fukushima accident;
Conference_Titel :
Fuzzy Systems and Knowledge Discovery (FSKD), 2011 Eighth International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-180-9
DOI :
10.1109/FSKD.2011.6020078
