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arXiv · 1201.3970

Activities of γ-ray emitting isotopes in rainwater from Greater Sudbury, Canada following the Fukushima incident

B. T. Cleveland·F. A. Duncan·I. T. Lawson·N. J. T. Smith·E. Vazquez-Jauregui
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Abstract

We report the activity measured in rainwater samples collected in the Greater Sudbury area of eastern Canada on 3, 16, 20, and 26 April 2011. The samples were gamma-ray counted in a germanium detector and the isotopes 131I and 137Cs, produced by the fission of 235U, and 134Cs, produced by neutron capture on 133Cs, were observed at elevated levels compared to a reference sample of ice-water. These elevated activities are ascribed to the accident at the Fukushima Dai-ichi nuclear reactor complex in Japan that followed the 11 March earthquake and tsunami. The activity levels observed at no time presented health concerns.

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B. T. Cleveland, F. A. Duncan, I. T. Lawson, N. J. T. Smith, E. Vazquez-Jauregui. 2012-02-29. Activities of γ-ray emitting isotopes in rainwater from Greater Sudbury, Canada following the Fukushima incident. https://doi.org/10.1139/p2012-047

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