Aerosol radioactivity record in Bratislava/Slovakia following the Fukushima accident – A comparison with global fallout and the Chernobyl accident

Title: Aerosol radioactivity record in Bratislava/Slovakia following the Fukushima accident – A comparison with global fallout and the Chernobyl accident

Author: Povinec, P.P. / Sýkora, I. / Holý, K. / Gera, M. / Kováčik, A. / Brest’áková, L.

Reference: Journal of Environmental Radioactivity, 114, p.81-88, Dec 2012

DOI: 10.1016/j.jenvrad.2012.05.008

Keywords: Atmospheric radioactivity; Aerosols; Global fallout; Radionulides; Fukushima accident

Abstract: Results of radioactivity measurements in Bratislava aerosols following the Fukushima accident showed that at least three radioactive plumes arrived to Bratislava as indicated by ¹³¹I/¹³⁷Cs activity ratios. When compared with the Chernobyl results available for the Bratislava station, the Fukushima radionuclide levels were almost five orders of magnitude lower, with the maximum values for ¹³¹I and ¹³⁷Cs of 0.5 and 0.07 mBq/m³, respectively. The ¹³¹I and ¹³⁷Cs vs. ⁷Be aerosol activity records showed that the increases in ¹³¹I and ¹³⁷Cs activity concentrations were accompanied by ⁷Be increases, indicating that both the horizontal and vertical transports of radionuclides were responsible for observed radionuclide concentrations. The ¹³⁴Cs/¹³⁷Cs activity ratio was close to 1, as has also been reported by other investigators.

URL: http://www.sciencedirect.com/science/article/pii/S0265931X12001221

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