JAPAN | TEPCO soon to open doors to No.2 reactor building

Posted on June 19, 2011


JAPAN | NHK | Sunday, June 19, 2011 12:35 +0900 (JST)

Tokyo Electric Power Company says it will soon begin to open the doors to the No. 2 reactor building at the Fukushima Daiichi nuclear plant for ventilation, to lower humidity, and to start restoration work.

Extremely high humidity of nearly 100 percent, due to moisture apparently from the containment vessel and spent-fuel storage pool, has been hampering work inside the building.

TEPCO has been operating an air purification device for more than a week to reduce the radioactive concentration inside the building. The company now assesses that opening the doors will raise the level of background radiation around the plant by 0.0014 microsievert per hour, far below the permissible annual limit for ordinary people of one millisievert.

Speaking to reporters on Sunday morning, a TEPCO official stressed that the planned door-opening will have little impact on the nearby environment.

The company plans to begin opening the doors at 8 PM on Sunday and to fully open them at 4 AM on Monday if no problems arise.

TEPCO says the initial stage of the planned restoration work will include staff surveying radiation levels and adjusting gauges inside the building.

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