Effort of information dissemination of environmental research with Fukushima Comprehensive Environmental Information Site

Nagao, Fumiya; Oki, Noriko*; Sawada, Noriyoshi*; Shidomi, Masaaki*; Maruyama, Renta*; Kamikawa, Tsutomu*; Ito, Satomi; Niizato, Tadafumi; Kurikami, Hiroshi

JAEA-Data/Code 2025-008, 60 Pages, 2025/09

JAEA-Data-Code-2025-008.pdf:3.0MB
JAEA-Data-Code-2025-008-appendix(CD-ROM).zip:351.97MB

The Great East Japan Earthquake and the following tsunami caused the accident at the Fukushima Daiichi Nuclear Power Station. As a result, a large amount of radioactive materials was discharged into the environment. The Japan Atomic Energy Agency (JAEA) started research on the dynamics of radioactive materials in the environment and disseminated the results on the JAEA website "Base Information Q&A Site". A database site "Database for Radioactive Substance Monitoring Data" was also established to collect, form, and consolidate monitoring data on radioactive substances in the environment and air dose rates obtained and disclosed by various organizations, in addition to the environmental dynamics research of JAEA. Subsequently, in order to release the findings obtained through the research and the actual monitoring data as a single entity, they were compiled and operated as the portal site "Fukushima Comprehensive Environmental Information Site" (FaCE!S). With the establishment of the Fukushima Institute for Research, Education and Innovation, F-REI, the environmental dynamics research at JAEA was terminated and transferred to F-REI. Therefore, the Q&A site was also transferred to FREI in FY2025. This report summarizes the efforts of FaCE!S up to FY2024, and archives the Q&A site as of FY2024.

Web page access analysis and text mining for extraction of the needs in countermeasures against the radioactive contamination

Niizato, Tadafumi; Kamikawa, Tsutomu*; Oki, Noriko*

Joho Chishitsu, 35(4), p.99 - 108, 2024/12

https://doi.org/10.6010/geoinformatics.35.4_99

Extraction of the needs related to countermeasures against radioactive contamination was conducted by access analysis of the "Base Information Q&A Site" operated by JAEA and text mining of stenographic text data from a briefing on R&D by JAEA for local government officials. The results of the access analysis indicated that even after over 10 years had passed since the 1F accident, there were needs for data and information on the concentration of radiocesium in the environment, and agricultural, forestry, and fishery products and air dose rates used as a degree of radioactive contamination and evidence for the lifting of evacuation orders. The text mining results suggested the needs for data and information on radiocesium concentrations and air dose rates for river systems and aquatic products in the northern part of Hamadori, for forested environment and forest products in Nakadori, and for decontamination and air dose rates in forests and reservoirs in the southern part of Hamadori, as well as for monitoring data on changes in air dose rates after decontamination. The needs for information and data based on surveys and monitoring on the current situation of radioactive contamination rather than the future situation were also inferred.