Fukushima-derived radionuclides in sediments of the Japanese Pacific Ocean coast and various Japanese water samples (seawater, tap water, and coolant water of Fukushima Daiichi reactor unit 5)
- authored by
- Katsumi Shozugawa, Beate Riebe, Clemens Walther, Alexander Brandl, Georg Steinhauser
- Abstract
We investigated Ocean sediments and seawater from inside the Fukushima exclusion zone and found radiocesium (134Cs and 137Cs) up to 800 Bq kg−1as well as 90Sr up to 5.6 Bq kg−1. This is one of the first reports on radiostrontium in sea sediments from the Fukushima exclusion zone. Seawater exhibited contamination levels up to 5.3 Bq kg−1radiocesium. Tap water from Tokyo from weeks after the accident exhibited detectable but harmless activities of radiocesium (well below the regulatory limit). Analysis of the Unit 5 reactor coolant (finding only 3H and even low 129I) leads to the conclusion that the purification techniques for reactor coolant employed at Fukushima Daiichi are very effective.
- Organisation(s)
-
Centre for Radiation Protection and Radioecology
- External Organisation(s)
-
University of Tokyo
Colorado State University
- Type
- Article
- Journal
- Journal of Radioanalytical and Nuclear Chemistry
- Volume
- 307
- Pages
- 1787-1793
- No. of pages
- 7
- ISSN
- 0236-5731
- Publication date
- 23.08.2015
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Analytical Chemistry, Nuclear Energy and Engineering, Radiology Nuclear Medicine and imaging, Pollution, Spectroscopy, Public Health, Environmental and Occupational Health, Health, Toxicology and Mutagenesis
- Sustainable Development Goals
- SDG 3 - Good Health and Well-being
- Electronic version(s)
-
https://doi.org/10.1007/s10967-015-4386-9 (Access:
Open)
