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

Volume

4

fYear

2011

fDate

26-28 July 2011

Firstpage

2707

Lastpage

2709

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems and Knowledge Discovery (FSKD), 2011 Eighth International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-180-9

Type

conf

DOI

10.1109/FSKD.2011.6020078

Filename

6020078