Publikationen

Radionuclides in surface waters around the damaged Fukushima Daiichi NPP one month after the accident: Evidence of significant tritium release into the environment

Autor(en)
Rebecca Querfeld, Anna-Elina Pasi, Katsumi Shozugawa, Christof Vockenhuber, Hans-Arno Synal, Peter Steier, Georg Steinhauser
Abstrakt

Following the Fukushima nuclear accident (2011), radionuclides mostly of volatile elements (e.g., I-131, Cs-134,Cs-137, Te-132) have been investigated frequently for their presence in the atmosphere, pedosphere, biosphere, and the Pacific Ocean. Smaller releases of radionuclides with intermediate volatility, (e.g., Sr-90), have been reported for soil. However, few reports have been published which targeted the contamination of surface (fresh) waters in Japan soon after the accident. In the present study, 10 surface water samples (collected on April 10, 2011) have been screened for their radionuclide content (H-3, Sr-90, I-129, Cs-134, and Cs-137), revealing partly unusually high contamination levels. Especially high tritium levels (184 +/- 2 Bq.L-1; the highest levels ever reported in scientific literature after Fukushima) were found in a puddle water sample from close to the Fukushima Daiichi nuclear power plant. The ratios between paddy/puddle water from one location only a few meters apart vary around 1% for Cs-134, 12% for I-129 (I-131), and around 40% for both H-3 and Sr-90. This illustrates the adsorption of radiocesium on natural minerals and radioiodine on organic substances (in the rice paddy), whereas the concentration differences of H-3 and Sr-90 between the two waters are mainly dilution driven. (C) 2019 Elsevier B.V. All rights reserved.

Organisation(en)
Isotopenphysik
Externe Organisation(en)
Gottfried Wilhelm Leibniz Universität Hannover, University of Helsinki, University of Tokyo, Eidgenössische Technische Hochschule Zürich
Journal
Science of the Total Environment
Band
689
Seiten
451-456
Anzahl der Seiten
6
ISSN
0048-9697
DOI
https://doi.org/10.1016/j.scitotenv.2019.06.362
Publikationsdatum
11-2019
Peer-reviewed
Ja
ÖFOS 2012
103014 Kernphysik, 104020 Radiochemie
Schlagwörter
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/radionuclides-in-surface-waters-around-the-damaged-fukushima-daiichi-npp-one-month-after-the-accident-evidence-of-significant-tritium-release-into-the-environment(f7fc2e93-fa69-4812-9b70-54d1a5ace7cf).html