Plutonium and americium inventories in atmospheric fallout and sediment cores from Blelham Tarn, Cumbria (UK).
The objective of this paper is to report on the results of a study of 238Pu, 239 + 240Pu and 241Am inventories onto Blelham Tarn in Cumbria (UK). The atmospheric fallout inventory was obtained by analysing soil cores and the results are in good agreement with the literature: 101 Bq m(-2) for 239 + 240Pu; 4.5 Bq m(-2) for 238Pu and 37 Bq m(-2) for 241Am. The sediment core inventory for the whole lake is compared to the atmospheric fallout inventory. The sediment activity is 60-80% higher than the estimated fallout activity, showing a catchment area contribution and in particular the stream input.
Michel
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H
Laboratoire de Radiochimie et Radioécologie, Université de Nice-Sophia Antipolis, Faculté des Sciences, Nice, France. herve.michel@unice.fr
Barci-Funel
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G
Dalmasso
J
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Ardisson
G
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Appleby
P G
PG
Haworth
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E
El-Daoushy
F
F
D000576:Americium / Q000032:analysis*; D004739:England; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D011005:Plutonium / Q000032:analysis*; D011847:Radioactive Fallout / Q000032:analysis*
D011847:Radioactive Fallout; D011005:Plutonium; D000576:Americium