Pertinent information concerning the Fukushima Dai-ichi NPS accident
Dose-of-radiation management system
Protective clothing・work management・early countermeasures

Due to the high concentration of radioactive materials over the entire site of Fukushima Dai-ichi, TEPCO requires workers to wear Tyvek and other protection clothes, gloves, and protection masks. It also requires appropriate protective clothes (anoraks, etc.), rubber gloves, and shoe covers taking into consideration weather conditions and contamination levels of the work sites .

seismic isolated building
・The door of an entrance is not air-tight structure.The door was damaged by the hydrogen explosion of unit 1 and 3.The protective clothes were not installed in the building.・Inflow of radioactive materials Radioactive material inhalation by workers ・Countermeasures to reduce concentration of radioactive materials in the building such as setting up localized exhaust fans with charcoal filters and erecting a temporary house at the entrance to prevent carrying in contamination.・Concentration of radioactive materials inside the building gradually decreased.
Example of a work situation
Installation of a shielding wall at Unit 2Installation of a shielding wall at Unit 2
Temporary indicator set-up at Unit 2Temporary indicator set-up at Unit 2
Supportive workSupportive work