Post-World War II uranium changes in dated Mont Blanc ice and snow SCIE SCOPUS

Cited 27 time in WEB OF SCIENCE Cited 26 time in Scopus
Title
Post-World War II uranium changes in dated Mont Blanc ice and snow
Author(s)
Barbante, C; Van De Velde, K; Cozzi, G; Capodaglio, G; Cescon, P; Planchon, F; Hong, SM; Ferrari, C; Boutron, C
Publication Year
2001-10-15
Abstract
Recent controversies concerning the possibility of environmental contamination due to the use of uranium in classical weaponry have led us to realize that there is a lack of time series for this metal from environmental archives. We have therefore performed analysis of a dated 140 m-long ice/snow core that was drilled in 1994 at a cold high altitude site (4250 m) near the summit of Mont Blanc in the French-Italian Alps. Ultraclean analytical procedures were employed in our analyses. Uranium concentrations were determined by inductively coupled plasma sector field mass spectrometry. In ice dating from before the 1940s, uranium concentrations are found to have remained fairly constant and can be explained simply by a crustal contribution. For the post-World War II layers, on the other hand, the data show large excesses above crustal contributions. These uranium excesses are attributed to tropospheric transport of dust emitted during extensive mining and milling operations which took place in the GDR and to a smaller extent in France at that time. There is no enhancement in uranium concentrations in the ice layer in which fallout from the 1986 Chernobyl accident was previously identified from a gross beta activity vs depth profile.
ISSN
0013-936X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5847
DOI
10.1021/es0109186
Bibliographic Citation
ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.35, no.20, pp.4026 - 4030, 2001
Publisher
AMER CHEMICAL SOC
Subject
PLASMA-MASS SPECTROMETRY; HEAVY-METAL ANALYSIS; DEPLETED URANIUM; ATMOSPHERIC EMISSIONS; ALPINE SNOW; FRENCH ALPS; SEDIMENTS; ISOTOPES; THORIUM; WATER
Type
Article
Language
English
Document Type
Article
Publisher
AMER CHEMICAL SOC
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