Radioactivity released by the Fukushima accident posed a low risk to Japan's population, said the World 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.
Residents will be able to repair tsunami damage in the town of Futaba after the Japanese government decided to prepare for the removal of parts of the town from the Fukushima evacuation zone.
_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 framingÌýfor a cover that will allow removal of used fuel from Fukushima Daiichi unit 4 has been completed.