Isotopic composition and origin of uranium and plutonium in selected soil samples collected in Kosovo

P. R. Danesi*, A. Bleise, W. Burkart, T. Cabianca, M. J. Campbell, M. Makarewicz, J. Moreno, C. Tuniz, M. Hotchkis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

Soil samples collected from locations in Kosovo where depleted uranium (DU) ammunition was expended during the 1999 Balkan conflict were analysed for uranium and plutonium isotopes content (234U, 235U, 236U, 238U, 238Pu, 239+240Pu). The analyses were conducted using gamma spectrometry (235U, 238U), alpha spectrometry (238Pu, 239+240Pu), inductively coupled plasma-mass spectrometry (ICP - MS) (234U, 235U, 236U, 238U) and accelerator mass spectrometry (AMS) (236U). The results indicated that whenever the U concentration exceeded the normal environmental values (∼2 to 3 mg/kg) the increase was due to DU contamination. 236U was also present in the released DU at a constant ratio of 236U (mg/kg)/238U (mg/kg)=2.6×10-5, indicating that the DU used in the ammunition was from a batch that had been irradiated and then reprocessed. The plutonium concentration in the soil (undisturbed) was about 1 Bq/kg and, on the basis of the measured 238Pu/239+240Pu, could be entirely attributed to the fallout of the nuclear weapon tests of the 1960s (no appreciable contribution from DU).

Original languageEnglish
Pages (from-to)121-131
Number of pages11
JournalJournal of Environmental Radioactivity
Volume64
Issue number2-3
DOIs
Publication statusPublished - 2003
Externally publishedYes

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