Abstract
Non-spherical heterogeneous radiocesium-bearing particles were found on masks worn during cleaning work in residences near the Fukushima Dai-ichi Nuclear Power Plant (FDNPP), from which residents had evacuated. Three slightly larger (6.6–12 μm) non-spherical radiocesium-bearing particles were found in a residence in Futaba Town, a straight distance of 2.11 km west-northwest from the FDNPP. These were collected on October 25, 2016, 5 years and 7 months after the Fukushima Dai-ichi nuclear disaster and were presumed to originate from the Plant's Unit 2 based on the measured radioactivity ratio of 134Cs/137Cs. The main elemental composition was similar to particles already reported in other studies. However, this is the first time that such particles had a clearly heterogeneous distribution.
Original language | English |
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Pages (from-to) | 65-70 |
Number of pages | 6 |
Journal | Journal of Environmental Radioactivity |
Volume | 177 |
DOIs | |
Publication status | Published - 2017 Oct |
Keywords
- Cesium
- Fukushima
- Pollution
- Radioactivity
- Radiocesium-bearing particles
ASJC Scopus subject areas
- Environmental Chemistry
- Waste Management and Disposal
- Pollution
- Health, Toxicology and Mutagenesis