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Anthropogenic Radiocarbon: Past, Present, and Future

Published online by Cambridge University Press:  18 July 2016

Pavel Povinec,
Martin Chudý and
Alexander Šivo
Pavel Povinec
Affiliation:
Comenius University, Faculty of Mathematics and Physics, Department of Nuclear Physics, 842 15 Bratislava, Czechoslovakia
Martin Chudý
Affiliation:
Comenius University, Faculty of Mathematics and Physics, Department of Nuclear Physics, 842 15 Bratislava, Czechoslovakia
Alexander Šivo
Affiliation:
Comenius University, Faculty of Mathematics and Physics, Department of Nuclear Physics, 842 15 Bratislava, Czechoslovakia
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Abstract

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14C is one of the most important anthropogenic radionuclides released to the environment by human activities. Weapon testing raised the 14C concentration in the atmosphere and biosphere to +100% above the natural level. This excess of atmospheric C at present decreases with a half-life of ca 7 years. Recently, a new source of artificially produced 14C in nuclear reactors has become important. Since 1967, the Bratislava 14C laboratory has been measuring 14C in atmospheric 14CO2 and in a variety of biospheric samples in densely populated areas and in areas close to nuclear power plants. We have been able to identify a heavy-water reactor and the pressurized water reactors as sources of anthropogenic 14C. 14C concentrations show typical seasonal variations. These data are supported by measurements of 3H and 85Kr in the same locations. Results of calculations of future levels of anthropogenic 14C in the environment due to increasing nuclear reactor installations are presented.

Information

Type
VI. Anthropogenic Variations
Information
Radiocarbon , Volume 28 , Issue 2A , 1986, pp. 668 - 672
Copyright
Copyright © The American Journal of Science 

References

Bulletin IAEA, 1984, Vienna, IAEA, v 26, p 70.Google Scholar
Bulletin IAEA, 1985, Vienna, IAEA, v 27, p 67.Google Scholar
Chudý, M and Povinec, P, 1982, Radiocarbon production in a CO2 coolant of nuclear reactor: Acta Univ Comen Physica, v 22, p 127–134.Google Scholar
Chudý, M, Povinec, P, Šeliga, M and Šáró, Š, 1970, Carbon 14 in atmosphere and biosphere: Radioisotopy, v 11, p 935–951.Google Scholar
Chudý, M, Usačev, S, Povinec, P and Šáró, Š, 1977, Environment contamination by tritium and radiocarbon: Acta Univ Comen Formatio Protectio Naturae, v 3, p 147–155.Google Scholar
Cimbák, Š (ms), 1984, Anthropogenic radioactive gases in the atmosphere: PhD dissert, Comenius Univ. Google Scholar
Levin, I, Münnich, K O and Weiss, W, 1980, The effect of anthropogenic CO2 and 14C sources on the distribution of 14C in the atmosphere, in Stuiver, M and Kra, RS, eds, Internatl 14C conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 379–391.Google Scholar
McCartney, M, Baxter, MS, McKay, K and Scott, EM, 1985, Global and local effects of 14C discharges from the nuclear fuel cycle, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 12th, Proc: Radiocarbon, this issue.Google Scholar
Münnich, KO, 1963, Der Kreislauf des Radiokohlenstoffs in der Natur: Naturwissenschaften, v 6, p 211–218.Google Scholar
Nydal, R and Lövseth, K, 1965, Distribution of radiocarbon from nuclear tests: Nature, v 206, p1029–1031.CrossRefGoogle Scholar
Olsson, I U, 1968, Modern aspects of radiocarbon datings: Earth Sci Rev, v 4, p 203–218.Google Scholar
Povinec, P, 1972, Preparation of methane gas filling for proportional 3H and 14C counter: Radiochem Radioanal Letters, v 9, p 127–135.Google Scholar
Povinec, P, 1975, The analysis of 3H and 14C labelled compounds in the form of doubly labelled methane: Internatl Jour Appl Radiation Isotopes, v 26, p 465–469.CrossRefGoogle Scholar
Povinec, P, Burchuladze, A A, Usačev, S, Pagava, S V, Togonidze, G I, Eristavi, I V, Polášková, A and Šivo, A, 1980, Preparation of counter fillings for high precision radiocarbon measurements: Acta Univ Comen Physica, v 20, p 185–195.Google Scholar
Povinec, P, Šáró, Š, Chudý, M and Šeliga, M, 1968, The rapid method of carbon-14 counting in atmospheric carbon dioxide: Internatl Jour Appl Radiation Isotopes, v 19, p 877–881.CrossRefGoogle Scholar
Povinec, P, Usačev, S, Chudý, M and Šeliga, M, 1973, Bratislava radiocarbon measurements I: Radiocarbon, v 15, p 443–450.Google Scholar
Segl, M, Levin, I, Schoch-Fischer, H, Münnich, M, Kromer, B, Tschiersch, J and Münnich, K O, 1983, Anthropogenic 14C variations, in Stuiver, Minze and Kra, RS, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 583–592.Google Scholar