Distribution of ²²⁶Ra in the Ross Sea—Antarctica

M. G. Bettoli Environmental Radioactivity Center, Dept. of chemistry, University of Bologna, v. Selmi 2, 40126, Bologna, Italy

L. Cantelli Environmental Radioactivity Center, Dept. of chemistry, University of Bologna, v. Selmi 2, 40126, Bologna, Italy

G. Queirazza ENEL S.p.A.—Center for the Environmental and Material Research, v. Monfalcone 15, 20132, Milan, Italy

M. Roveri ENEL S.p.A.—Center for the Environmental and Material Research, v. Monfalcone 15, 20132, Milan, Italy

L. Tositti Environmental Radioactivity Center, Dept. of chemistry, University of Bologna, v. Selmi 2, 40126, Bologna, Italy

O. Tubertini Environmental Radioactivity Center, Dept. of chemistry, University of Bologna, v. Selmi 2, 40126, Bologna, Italy

S. Valcher Environmental Radioactivity Center, Dept. of chemistry, University of Bologna, v. Selmi 2, 40126, Bologna, Italy

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Abstract

An improved procedure for the determination of ²²²Rn and ²²⁶Ra in seawater developed for easier on-board operations is presented. Data on the radioactive disequilibrium between the mentioned radionuclides as directly determined in the field can be greatly helpful in the study of the gas-exchange processes at the air-sea interface, especially as far as the Antarctic Ocean is concerned. The method employed has been preliminarly tested in laboratory on a set of seawater samples collected in the Ross Sea and ²²⁶Ra data collected are discussed and compared to literature data.

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Distribution of 226Ra in the Ross Sea—Antarctica

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Distribution of ²²⁶Ra in the Ross Sea—Antarctica