Articles | Volume 15, issue 11
The Cryosphere, 15, 5151–5168, 2021
https://doi.org/10.5194/tc-15-5151-2021
The Cryosphere, 15, 5151–5168, 2021
https://doi.org/10.5194/tc-15-5151-2021
Research article
 | Highlight paper
19 Nov 2021
Research article  | Highlight paper | 19 Nov 2021

Accumulation of legacy fallout radionuclides in cryoconite on Isfallsglaciären (Arctic Sweden) and their downstream spatial distribution

Caroline C. Clason et al.

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Cited articles

Åhman, B. and Åhman, G.: Radiocesium in Swedish reindeer after the Chernobyl fallout: Seasonal variations and long-term decline, Health Phys., 66, 503–512, https://doi.org/10.1097/00004032-199405000-00002, 1994. 
Åhman, B., Wright, S. M., and Howard, B. J.: Effect of origin of radiocaesium on the transfer from fallout to reindeer meat, Sci. Total Environ., 278, 171–181, https://doi.org/10.1016/S0048-9697(01)00646-5, 2001. 
Aldahan, A., Possnert, G., and Vintersved, I.: Atmospheric interactions at northern high latitudes from weekly Be-isotopes in surface air, Appl. Radiat. Isot., 54, 345–353, https://doi.org/10.1016/S0969-8043(00)00163-9, 2001. 
Appleby, P. G.: Chronostratigraphic Techniques in Recent Sediments, in: Tracking Environmental Change Using Lake Sediments, Developments in Paleoenvironmental Research, vol. 1, edited by: Smol, J. P. and Last, W. M., Springer, Dordrecht, 2002. 
Baccolo, G., Di Mauro, B., Massabò, D., Clemenza, M., Nastasi, M., Delmonte, B., Prata, M., Prati, P., Previtali, E., and Maggi, V.: Cryoconite as a temporary sink for anthropogenic species stored in glaciers, Sci. Rep., 7, 9623, https://doi.org/10.1038/s41598-017-10220-5, 2017. 
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Our paper presents results of sample collection and subsequent geochemical analyses from the glaciated Isfallsglaciären catchment in Arctic Sweden. The data suggest that material found on the surface of glaciers, cryoconite, is very efficient at accumulating products of nuclear fallout transported in the atmosphere following events such as the Chernobyl disaster. We investigate how this compares with samples in the downstream environment and consider potential environmental implications.