| Title | Sedimentation and remobilization of radiocesium in the coastal area of Ibaraki, 70 km south of the Fukushima Dai-ichi Nuclear Power Plant |
| Alternative title | 福島第一原子力発電所の南70kmの茨城沿岸における放射性セシウムの堆積と再輸送 |
| Publisher | Springer |
| Author | Otosaka, Shigeyoshi |
| Author | Kobayashi, Takuya |
| Issued date | 2013-07 |
| Language | eng |
| Page | 5419p.-5433p. |
| Type | report |
| Description | From a time-series observation at 9 stations off the coast of Ibaraki, the following transport processes of sedimentary radiocesium can be inferred. (1) Major distributional pattern of the 1FNPP-derived radiocesium in coastal sediments was configurated within half a year after the accident. (2) Larger inventories of sedimentary radiocesium in the shallow region attribute to the higher contact probability of dissolved radiocesium with sediment. (3) Most of radiocesium in the coastal sediments is incorporated into lithogenic fractions, and the incorporation is almost irreversible. (4) Radiocesium is selectively accumulated in the finer-grained sediments. (5) In the study area, as of January 2012, riverine input of suspended particulate matter can be regarded as a minor process to accumulate radiocesium in the coastal sediments. Nevertheless, the relative contribution would increase years later. |
| Information source |  JOPSS Relation URLRelation URL |
| Related sites |
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| URI | https://f-archive.jaea.go.jp/dspace/handle/faa/211504 |
