This unusual event at Fukushima Daiichi took place in early June. Workers entered a 2nd floor electrical room in the unit 4 turbine building in their socks. The room holds electrical equipment for the nearby reverse osmosis water filtration system. The equipment in this room is all new, post disaster equipment. The room appears to be a “clean” area where they attempt to keep dust and contamination out of the room. To keep the room clean, workers are expected to change into shoes placed for use in the electrical room to prevent dust and radioactive contamination from entering the room. Instead of switching shoes, five of the ten workers removed their shoes and entered in their socks. TEPCO reports the act of opening and closing the door allowed dust to enter the room. When the workers entered in their socks they picked up contaminated dust on their socks.
Simply Info 25th June 2019 read more »