(Update) Fukushima nuclear power plant update: get all the data ( ^o^ )

Current Status at Fukushima as of 13th April 2011
source: guardian.co.uk

     The 9.0 magnitude earthquake and following tsunami on March 11 has seen a rush by officials to gain control of power plants in the north-east of the country and have been under pressure to resolve the situation. Last Wednesday marked two months since the Japan disaster and this brings a new focus onto the state of affairs in the country.

     The table below shows the status of the reactors in the Fukushima Daiichi (the largest of the Fukushima power plants) and is colour coded to show the severity. Green for low, yellow represents high and red shows those of severe significance as judged by the JAIF. We have used JAIF's update 132 as of 12:00 local time as this is the most up to the minute data we can get.

Fukushima nuclear power plant update - 16th May 2011

Unit	1	2	3	4	5	6
SOURCE: JAIF Radiation: 391μSv/h at the south side of the office building, 15μSv/h at the West gate, as of 21:00, May 15th. , 43μSv/h at the Main gate, as of 11:30, May 12th. Evacuation: <1> Shall be evacuated for within 3km from NPS, Shall stay indoors for within 10km from NPS (issued at 21:23, Mar. 11th) <2> Shall be evacuated for within 10km from NPS (issued at 05:44, Mar. 12th) <3> Shall be evacuated for within 20km from NPS (issued at 18:25, Mar. 12th) <4> Shall stay indoors (issued at 11:00, Mar. 15th), Should consider leaving (issued at 11:30, Mar. 25th) for from 20km to 30km from NPS　<5>The 20km evacuation zone around the Fukushima Daiichi NPS is to be expanded so as to include the area, where annual radiation exposure is expected to be above 20mSv. People in the expanded zone are ordered to evacuate within a month or so. People living in the 20 to 30km and other than the expanded evacuation area mentioned above, are asked to get prepared for staying indoors or evacuation in an emergency (announced on Apr. 11th and issued on Apr. 22nd) Remarks: Some radioactive nuclides (I, Cs, Pu, Am Cm and Sr) has been detected in soil sampled at the Fukushima site. Radioactive materials continues to be detected in samples corrected from underground water and sea water at or near the site. Environmental monitoring has been enhanced. Radioactive Iodine and cesium have been detected in the seabed samples taken 15-20 km far from the plant from 15-20m deep. Level of radiation is 100 to 1,000 times above normal. (5/4) ●Influence to the people's life Radioactive material was detected from milk, agricultural products and seafood from Fukushima and neighboring prefectures. The government issued order to limit shipment and intake of some products. Radioactive iodine, exceeding the provisional legal limit for drinking water, was detected from tap water sampled in some prefectures. All the restrictions of intake of the water, which was once issued by the govedrment, have been lifted by May 10th. Radioactive cesium was detected in the sludge from a sewage treatment plants, one of which is 50 km far from the power station. Small amount of strontium was detected in some samples of soil and plants collected in the area 20-80 km away from the power station.
Electric / Thermal Power output (MW)	460 / 1380	784 / 2381	784 / 2381	784 / 2381	784 / 2381	1100 / 3293
Type of Reactor	BWR-3	BWR-4	BWR-4	BWR-4	BWR-4	BWR-5
Operation Status at the earthquake occurred	In Service -> Shut - down	In Service -> Shut - down	In Service -> Shut - down	Out - age	Out - age	Out - age
Core and Fuel Integrity	Dama - ged (400) mostly	Dama - ged (548) 35%	Dama - ged (548) 30%	No fuel rods	Not Dama - ged (548)	Not Dama - ged (764)
Reactor Pressure Vessel Integrity	Dama - age & leak - age suspe - cted	Un- known	Un- known	Not Dama - ged	Not Dama - ged	Not Dama - ged
Containment Vessel Integrity	Dama - age & leak - age suspe - cted	Damage and leak Susp - ected	Not Dama - ged (estim - ation)	Not Dama - ged	Not Dama - ged	Not Dama - ged
Core cooling requiring AC power 1	Not Funct - ional	Not Funct - ional	Not Funct - ional	N/A	Funct - ional	Funct - ional
Core cooling requiring AC power 2	Not Funct - ional	Not Funct - ional	Not Funct - ional	N/A	Funct - ioning (in cold shut down)	Funct - ioning (in cold shut down)
Building Integrity	Severely Dama - ged	Partly open - ed	Severely Dama - ged	Severely Dama - ged	Open a vent - hole - to avoid hydro - gen explo - sion	Open a vent - hole - to avoid hydro - gen explo - sion
Water Level of the Rector Pressure Vessel	lower than bott - om of fuels	Fuel exposed	Fuel exposed	Safe	Safe	Safe
Pressure of the Reactor Pressure Vessel	Gradu - ally incre - asing	Un- known / Stable	Un- known / Gradu - ally incre - asing	Safe	Safe	Safe
Containment Vessel Pressure	Decre - ased a little after incre - ase	Stable	Stable	Safe	Safe	Safe
Water injection to core	Cont. (Fresh - water)	Cont. (Fresh - water)	Cont. (Fresh - water)	N/A	N/A	N/A
Water injection to Containment Vessel (AM)	TBC	TBC (Sea water)	TBC	N/A	N/A	N/A
Containment venting (AM)	Temp stopped	Temp stopped	Temp stopped	N/A	N/A	N/A
Fuel Integrity in the spent fuel pool	Un- known (292)	Un- known (587)	Damage susp - ected (514)	Possibly Dama - ged (1331)	Not Dama - ged (946)	Not Dama - ged (876)
Cooling of the spent fuel pool	Water spray star -ted (fresh -water)	Cont. ( Switch to Fresh - water)	Cont. water spray and injec - tion (Fresh - water)	Water spray continue. Hydrogen from the pool exploded. Temp dec - reasing	Pool cooling capa - bility was recov - ered	Pool cooling capa - bility was recov - ered
Main Control Room Habitability & Operability	Poor due to loss of AC power	Poor due to loss of AC power	Poor due to loss of AC power	Poor due to loss of AC power	Not dam -aged (estimate)	Not dam -aged (estimate)
INES LEVEL (est by NISA)	7	7	7	3	-	-

A table of major incidents and accidents at the plants can be found in this link.

     Although it may be some time after the radiation levels at the Fukushima Daiichi nuclear power plant rose: the severity level changed from five to seven - the same level as Chernobyl in 1986, there are still acres of coverage concerning the nuclear disaster. The humanitarian cost has also been closely reported on.

     Fukushima's nuclear power plant has been closely scrutinised as reports flow in on the progress of the situation - Japan's nuclear board previously raised the nuclear alert level from four to five in the weeks following the disaster and the JAIF warned of products such as dairy and spinach being restricted for shipping. Explosions and reports of nuclear fuel rods melting at the power plant have meant progress on the situation has been closely followed as has the environmental effects with concerns for marine life and spreading radiation through seawater. There has also recently been concerns over radioactive dirt found in a school playground in Fukushima.