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Anthropogenic 14C Variations

Published online by Cambridge University Press:  18 July 2016

Monika Segl
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
Ingeborg Levin
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
Hilla Schoch-Fischer
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
Marianne Münnich
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
Bernd Kromer
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
Jochen Tschiersch
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
Karl Otto Münnich
Affiliation:
Institut für Umweltphysik, Universität Heidelberg, Federal Republic of Germany
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Abstract

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Continuous 14C data of 1 or 2 weekly samples of atmospheric CO2 are presented, collected near two nuclear power plants (NPP-Biblis and NPP-Philippsburg) located in the rather densely populated upper Rhine valley. Tree-leaf and tree-ring samples from the area of a boiling water reactor in northern Germany (NPP-Würgassen) are also presented and discussed. Additional atmospheric 14CO2 samples from two continental ‘clean-air’ stations in Germany and Austria were used as reference for the polluted areas. For January 1982, these samples yield a ‘clean-air’ 14C concentration in central Europe of Δ14C=255±5‰ (7.7pCi/gC = 1.45pCi/m3 air).

Type
VI. Anthropogenic 14C Variations
Copyright
Copyright © The American Journal of Science 

References

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