JOPSS - Search Results

Journal Articles

Challenges for management of radioactively contaminated wastes and volume reduction and reuse/recycling of removed soil derived from the activities for environmental remediation after the Fukushima Daiichi Nuclear Power Station accident, 2; Cs adsorption and desorption mechanism on clay minerals for aiming reuse

Yaita, Tsuyoshi

Nihon Genshiryoku Gakkai-Shi ATOMO, 59(8), p.441 - 443, 2017/08

no abstracts in English

Journal Articles

Challenges for enhancing Fukushima environmental resilience, 1; Status and lessons

Miyahara, Kaname; Ohara, Toshimasa*

Nihon Genshiryoku Gakkai-Shi ATOMO, 59(5), p.282 - 286, 2017/05

This review highlights JAEA and NIES's challenges for enhancing Fukushima environmental resilience based on carrying out multifaceted research working with many public and private sector organizations and academia.

Journal Articles

An Overview of progress in environmental research on radioactive materials derived from the Fukushima Nuclear accident

Ohara, Toshimasa*; Miyahara, Kaname

Global Environmental Research (Internet), 20(1&2), p.3 - 13, 2017/03

http://www.airies.or.jp/ebook/Global_Environmental_Research_Vol.20.pdf

Toward the environmental regeneration in Fukushima Prefecture and other areas after the Fukushima Daiichi Nuclear Power Station accidents, JAEA and NIES working with many public and private sector organizations and academia have carried out multifaceted research that will help to restore the environment of affected areas. These challenging efforts need to be further strengthened.

Journal Articles

Dose estimation for reuse of material contaminated by Fukushima Daiichi NPP accident

Takeda, Seiji

Strlevern Rappot 2016:5 (Internet), p.43 - 46, 2016/04

http://www.nrpa.no/publikasjon/straalevernrapport-2016-5-regulatory-supervision-of-legacy-sites-from-recognition-to-resolution-report-of-an-international-workshop.pdf

A large volume of disaster wastes such as concrete waste, scrap metal, wood waste and so on, in the environment due to the accident at the Fukushima Nuclear Power Plant has been contaminated by radioactive cesium ( $^{134}$ Cs and $^{137}$ Cs). A large challenge has been how to handle the large volume of contaminated material. One strategy for addressing this issue would be the reuse of material from the viewpoint of both effective utilization of resources and the amount of reduction of the contaminants. This paper shows that the outline of dose estimation for some kinds of reuse applications to derive the radioactive cesium concentration in reusable materials.

Journal Articles

Clearance levels derived by European Commission

Okoshi, Minoru

Dekomisshoningu Giho, (26), p.2 - 12, 2002/11

http://www.randec.or.jp/publish/documents/gihou/Decommissioning%20gihou_26.pdf

The concept of clearance has been introduced by the International Atomic Energy Agency in 1996 and is very useful for the management of very low-level solid materials generating from the decommissioning of nuclear facilities. Therefore, the European Commission (EC) derived the specific clearance levels for metals, buildings and building rubble in RP 89 and 113, respectively. The EC also derived the general clearance levels for all solid materials generating from the regulated facilities in RP 122. Comparing the clearance levels of Japan with the unrounded levels of EC, the differences of levels are small. The biggest difference is found in Fe-55 and the EC's clearance level is about one fifth of Japanese clearance level. This is caused because the EC considers the direct ingestion of cleared building rubble by children and used the conservative ingestion rate of it. EC's discussions related to the clearance levels are very useful for Japan to derive our own clearance levels and to clear materials from regulatory control.

JAEA Reports