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Sources of Anthropogenic 14C to the North Sea

Published online by Cambridge University Press:  18 July 2016

P Gulliver ,
G T Cook ,
A B MacKenzie ,
P Naysmith  and
R Anderson
P Gulliver
Affiliation:
Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, East Kilbride G75 0QF, Scotland NERC Radiocarbon Laboratory, Scottish Enterprise Technology Park, East Kilbride G75 0QF, Scotland
G T Cook
Affiliation:
Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, East Kilbride G75 0QF, Scotland
A B MacKenzie
Affiliation:
Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, East Kilbride G75 0QF, Scotland
R Anderson
Affiliation:
Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, East Kilbride G75 0QF, Scotland
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Abstract

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The Sellafield nuclear fuel reprocessing plant on the northwest coast of England is the largest source of anthropogenic radiocarbon to the UK coastal environment. In a mid-1990s study of 14C distribution around the UK coast, the pattern of dilution with increasing distance from Sellafield appeared to be perturbed by anomalously high 14C activities in marine biota in the coastal environment of northeast England. This present study was undertaken during 1998 and 1999 to determine whether this 14C enhancement was due to Sellafield or the nuclear power plants on the east coast. Seawater, seaweed (Fucus sp.), and mussel (Mytilus edulis) samples that were collected from the vicinity of the Torness and Hartlepool advanced gas-cooled reactor (AGR) nuclear power stations were all enhanced above the contemporary regional background activity derived from natural production and atmospheric nuclear weapons testing. We used previously published dilution factors and transfer times for 99Tc between Sellafield and various points on the UK coast to determine likely Sellafield-derived 14C contributions to the activities at the nuclear power plant sites. The results suggest that the activities observed at Torness, which are only marginally enhanced above the natural background activity, are possibly due to discharges from Sellafield; however, the significant 14C enhancements at Hartlepool are not Sellafield-derived. Furthermore, since both reactors have the same fundamental design, the low activities at the Torness AGR imply that the activities at Hartlepool are not from the AGR, suggesting that there is an input of 14C to the marine environment in the vicinity of Hartlepool which is probably non-nuclear-power related. However, there is no other authorized site in the area that could account for the observed 14C enrichments; therefore, further research is required to ascertain the source of this 14C.

Type
Part II
Information
Radiocarbon , Volume 46 , Issue 2: Proceedings of the 18th International Radiocarbon Conference (Part 2 of 2), Conference Editors: Nancy Beavan Athfield, Rodger J Sparks , 2004 , pp. 869 - 875
Copyright
Copyright © The Arizona Board of Regents on behalf of the University of Arizona 

References

Begg, FH. 1992. Anthropogenic 14C in the natural aquatic environment [PhD dissertation]. Glasgow: University of Glasgow.Google Scholar
Begg, FH, Baxter, MS, Cook, GT, Scott, EM, McCartney, M. 1991. Anthropogenic 14C as a tracer in western U.K. coastal waters. In: Kershaw, PJ, Woodhead, DS, editors. Radionuclides in the Study of Marine Processes. New York: Elsevier Applied Science. p 52–60.CrossRefGoogle Scholar
Begg, FH, Cook, GT, Baxter, MS, Scott, EM, McCartney, M. 1992. Anthropogenic radiocarbon in the Eastern Irish Sea and Scottish coastal waters. Radiocarbon 34(3):707–16.Google Scholar
CEFAS (Centre for Fisheries, and Aquaculture Science). 1997–2000. Radioactivity in Food and the Environment (RIFE). Report to the Food Standards Agency and Scottish Environment Protection Agency.Google Scholar
Cook, GT, Mackenzie, AB, Naysmith, P, Anderson, R. 1998. Natural and anthropogenic 14C in the UK coastal marine environment. Journal of Environmental Radioactivity 40(1):89–111.Google Scholar
Dahlgaard, H. 1995. Transfer of European coastal pollution to the Arctic: radioactive tracers. Marine Pollution Bulletin 31:3–7.Google Scholar
Gulliver, P, Cook, GT, Mackenzie, AB, Naysmith, P, Anderson, R. 2001. Transport of Sellafield-derived 14C from the Irish Sea through the North Channel. Radiocarbon 43(2B):869–77.Google Scholar
Gulliver, P. 2002. Geochemistry and budgetary considerations of 14C in the Irish Sea [PhD dissertation]. Glasgow: University of Glasgow.Google Scholar
Jefferies, DF, Preston, A, Steele, AK. 1973. Distribution of 137Cs in British coastal waters. Marine Pollution Bulletin 4:118–22.CrossRefGoogle Scholar
Jefferies, DF, Steele, AK, Preston, A. 1982. Further studies on the distribution of 137Cs in British coastal waters. 1. The Irish Sea. Deep-Sea Research 29:713–38.Google Scholar
Kershaw, PJ, Baxter, A. 1995. The transfer of reprocessing waste from northwest Europe to the Arctic. Deep-Sea Research II 42:1413–48.Google Scholar
Kershaw, PJ, Heldal, HE, Mork, KA, Rudjord, AL. 2004. Variability in the supply, distribution and transport of the transient tracer 99Tc in the NE Atlantic. Journal of Marine Systems 44(1–2):55–81.Google Scholar
Leonard, KS, McCubbin, D, Brown, F, Bonfield, R, Brooks, T. 1997. Distribution of Technetium-99 in UK coastal waters. Marine Pollution Bulletin 34(8):628–36.CrossRefGoogle Scholar
McCubbin, D, Leonard, KS, Brown, J, Kershaw, PJ, Bonfield, RA, Peak, T. 2002. Further studies of the distribution of technetium-99 and caesium-137 in UK and European coastal waters. Continental Shelf Research 22:1417–45.Google Scholar
Nies, H. 1990. The contamination of the North Sea by artificial radionuclides during the year 1987. Journal of Environmental Radioactivity 11:55–70.Google Scholar
Prandle, D. 1984. A modelling study of the mixing of Cs in the seas of the European continental shelf. Philosophical Transactions of the Royal Society London, Series A 310:407–36.Google Scholar