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Radiocarbon in Seawater at Radioactive Waste Dumping Sites in the Northeast Atlantic and Northwest Pacific

Published online by Cambridge University Press:  18 July 2016

P P Povinec ,
A J T Jull  and
G S Burr
P P Povinec
Affiliation:
International Atomic Energy Agency, Marine Environmental Laboratory, 4 Quai Antoine 1er, MC-98012, Monaco. Email: [email protected].
A J T Jull
Affiliation:
The University of Arizona, NSF Arizona AMS Facility, Department of Physics, Tucson, Arizona 85721, USA
G S Burr
Affiliation:
The University of Arizona, NSF Arizona AMS Facility, Department of Physics, Tucson, Arizona 85721, USA
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Abstract

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Radiocarbon has been an important constituent of radioactive wastes dumped in the open ocean and marginal seas as well as wastes released from nuclear reprocessing plants. Therefore, in some regions these sources could have a greater impact on 14C concentration in seawater than global fallout. The high analytical sensitivity of 14C measurement by accelerator mass spectrometry (AMS) allows even tracer amounts of 14C to be found in seawater at radioactive waste dumping sites and their comparison with the global distribution of this radionuclide. Data on measurements of 14C in samples taken at former dumping sites in the northeast Atlantic and northwest Pacific Oceans and in the open ocean are discussed and compared with other anthropogenic radionuclides, namely 3H. Small increases in 14C concentrations observed in some bottom and surface seawater samples collected at the Northwest Pacific Ocean dumping sites require further 14C analyses before final conclusions can be made on possible leakages from dumped radioactive wastes.

Type
II. Our ‘Wet’ Environment
Information
Radiocarbon , Volume 43 , Issue 2B: Proceedings of the 17th International Radiocarbon Conference (Part 2 of 3), Conference Editors: Israel Carmi, Elisabetta Boaretto , 2001 , pp. 879 - 886
Copyright
Copyright © 2001 by the Arizona Board of Regents on behalf of the University of Arizona 

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