Published November 2019 | Version v1
Report Metadata-only

Profile and behavior of radiocaesium in the sediment of reservoir around the forest catchment in Fukushima

Creators

  • 1. National Institutes for Quantum and Radiological Science and Technology (QST), Center for Advanced Radiation Emergency Medicine, Chiba (Japan)
  • 2. Japan Conservation Engineers & Co., Ltd., Tokyo (Japan)

Description

Monitoring of radiocaesium activity concentration in the sediment of two reservoir around the forest catchments in Fukushima were carried out in order to elucidate the behavior of radiocaesium in the reservoir in 2018. The profile pattern of radiocaesium is similar with that of water content in the sediment. The 137Cs activity concentrations in sediment, pore water and overlaying water in Reservoir Y were 5-10 times higher than those in Reservoir S. One of reasons is that Reservoirs Y and S are the closed system and the water exchangeable system, respectively. And then, Kd values of Cs between water and sediment is similar with the previous studies. It is considered that dissolved radiocaesium is desorbed from sediment to water with the ion exchange of cation, as the 137Cs activity concentrations in pore water is 10 times higher than those in overlaying water. (author)

Part of:
Proceedings of the 20th workshop on environmental radioactivity

Additional details

Additional titles

Original title (Japanese)
森林集水域ため池堆積物中の放射性セシウムの濃度分布と挙動

Identifiers

URL
https://lib-extopc.kek.jp/preprints/PDF/2019/1925/1925002.pdf;

Publishing Information

Imprint Title
Proceedings of the 20th workshop on environmental radioactivity
Imprint Pagination
276 p.
Journal Page Range
p. 94-97
Report number
KEK-PROC--2019-2

Conference

Title
20. workshop on environmental radioactivity
Dates
12-14 Mar 2019
Place
Tsukuba, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
54110180
Subject category
S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CESIUM 137; DEPTH DOSE DISTRIBUTIONS; DOSE RATES; FIRES; FORESTS; FUKUSHIMA DAIICHI NUCLEAR POWER STATION; GE SEMICONDUCTOR DETECTORS; HUMIDITY; MELTDOWN; NUCLEAR POWER PLANTS; RADIATION MONITORING; RADIOACTIVITY; RADIONUCLIDE MIGRATION; SEDIMENTS; WATER RESERVOIRS; WATERSHEDS
Descriptors DEC
ACCIDENTS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BEYOND-DESIGN-BASIS ACCIDENTS; CESIUM ISOTOPES; ENVIRONMENTAL TRANSPORT; INTERMEDIATE MASS NUCLEI; ISOTOPES; MASS TRANSFER; MEASURING INSTRUMENTS; MOISTURE; MONITORING; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; POWER PLANTS; RADIATION DETECTORS; RADIATION DOSE DISTRIBUTIONS; RADIOISOTOPES; REACTOR ACCIDENTS; REACTOR SITES; SEMICONDUCTOR DETECTORS; SEVERE ACCIDENTS; SPATIAL DOSE DISTRIBUTIONS; SURFACE WATERS; THERMAL POWER PLANTS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
7 refs., 4 figs. Imprint:#7B2C#20#56DE##300C##74B0##5883##653E##5C04##80FD##300D##7814##7A76##4F1A#