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Anthropogenic 14C Variations in Atmospheric CO2 and Wines

Published online by Cambridge University Press:  18 July 2016

A A Burchuladze ,
Martin Chudý ,
I V Eristavi ,
S V Pagava ,
Pavel Povinec ,
Alexander Šivo  and
G I Togonidze
A A Burchuladze
Affiliation:
Tbilisi State University, Faculty of Physics, Department of Nuclear Physics, 380028 Tbilisi, USSR
Martin Chudý
Affiliation:
Comenius University, Faculty of Mathematics and Physics, Department of Nuclear Physics, 84215 Bratislava, Czechoslovakia
I V Eristavi
Affiliation:
Tbilisi State University, Faculty of Physics, Department of Nuclear Physics, 380028 Tbilisi, USSR
S V Pagava
Affiliation:
Tbilisi State University, Faculty of Physics, Department of Nuclear Physics, 380028 Tbilisi, USSR
Pavel Povinec
Affiliation:
Comenius University, Faculty of Mathematics and Physics, Department of Nuclear Physics, 84215 Bratislava, Czechoslovakia
Alexander Šivo
Affiliation:
Comenius University, Faculty of Mathematics and Physics, Department of Nuclear Physics, 84215 Bratislava, Czechoslovakia
G I Togonidze
Affiliation:
Tbilisi State University, Faculty of Physics, Department of Nuclear Physics, 380028 Tbilisi, USSR
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Abstract

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As an extension of the Bratislava – Tbilisi collaboration, thermonuclear bomb-produced 14C variations in atmospheric CO2 of Bratislava (1967–1987) and in annually produced Georgian wines (1950–1987) are discussed. 14C produced in bomb tests performed in the atmosphere has considerably modified the natural 14C levels in the atmosphere and biosphere. Measurements of 14C in monthly samples of atmospheric CO2 show typical seasonal variations with maxima in summers and deep minima in winters. There is very good agreement between 14C measured in CO2 and in wine samples. Four maxima (1959, 1964, 1970 and 1978) were identified in the wine data. Our results confirm that wines prepared from annually grown grapes without any addition of other substances are good indicators of the 14C content of atmospheric CO2.

Type
III. Global 14C Variations
Information
Radiocarbon , Volume 31 , Issue 3: June 20-25, 1988 Dubrovnik, Yugoslavia , 1989 , pp. 771 - 776
Copyright
Copyright © The American Journal of Science 

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