Radioactivity released by the Fukushima accident posed a low risk to Japan's population, said the 抖阴传媒在线 Health Organisation. It expects no observable health effect in the wider population, but raised estimations of cancer risk for two towns.
A large twisted steel truss has been removed from the fuel pool of Fukushima Daiichi 3 as part of efforts to clear debris from the pond and service floor area.
The installation of steel columns听next to Fukushima Daiichi unit 4 marks the start of construction on a cover that will aid in the removal of fuel. This is the second cover to get underway at the site.
听
_64x48.jpg "Fukushima Daiichi 4 cover, March 2013 (Tepco) 64x48")
The frame of a structure to cover Fukushima Daiichi 4 has reached the third level and is now higher than the reactor building. It will enable the removal of used reactor fuel from the storage pool.)72x48.jpg "Fukushima Daiichi 4 area and central storage facility 28-29 March 2011 (Tepco) 72x48")
Radiation levels across the Fukushima Daiichi power plant site have dropped significantly as clean-up efforts continue. Most workers receive less than 1 milliSievert of radiation per month - well within normal limits.
The latest aerial survey of the Fukushima region reveals a pattern of contamination significantly reduced in the space of a year by natural processes of radioactive decay and dispersal..jpg "Fukushima Daiichi 3 pond February 2013 a (64x48)")
A camera inspection of Fukushima Daiichi 3's used fuel pool has revealed no damage to stored fuel, but a huge amount of concrete sediment on the racks._66x48.jpg "Truss removal at Fukushima Daiichi 3, February 2013 1 (Tepco) 66x48")
A large twisted steel truss has been removed from the fuel pool of Fukushima Daiichi 3 as part of efforts to clear debris from the pond and service floor area.
The first layer of steel framing听for a cover that will allow removal of used fuel from Fukushima Daiichi unit 4 has been completed.