Concentration of radon and thoron in the air above the Atlantic Ocean. Radioactive equilibrium between these gases and their descendants

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Journal de Physique et le Radium

DOI:https://doi.org/10.1051/jphys:01963002402016500· OSTI ID:4702312

Fontan, Jacques; Blanc, Daniel; Bouville, André; Lambert, Gérard

Measurements of the concentration of Rn and Tn were made from May 28 to June 28, 1962, aboard the meteorologicai ship France II, anchored at 45 deg latitude N and 16 deg longitude E. The concentrations of the radioactive decay products of Rn and Tn were measured at the same time to study the radioactive equilibrium between Rn and its descendants in the air above the Atlantic Ocean and to determine the variation of the concentrations as a function of the meteorological conditions. The sampling technique is described. The Tn activity and the ThB and ThC activities remained below 5.5 x 10/sup -15/ C/l of air. The radioactive equilibrium of Rn and its descendants remained constant at 5.3, dependent of the wind velocity. The concentration of Rn, however, seemed to be quite dependent on meteorological factors.

• Research Organization: Centre de Physique Nucleaire, Toulouse
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-029103
• OSTI ID: 4702312
• Journal Information: Journal de Physique et le Radium, Journal Name: Journal de Physique et le Radium Journal Issue: 2 Vol. 24; ISSN 0368-3842
• Country of Publication: Country unknown/Code not available
• Language: French

Related Subjects

58 GEOSCIENCES
ATMOSPHERE
BISMUTH 212
DECAY
DISTRIBUTION
LEAD 212
MEASURED VALUES
METEOROLOGY
QUANTITY RATIO
RADIOACTIVITY
RADON 220
RADON 222
SAMPLING
SEA
VARIATIONS
VELOCITY
WIND