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Press Release (Mar 12,2011)
Plant Status of Fukushima Daiichi Nuclear Power Station (as of 11PM March 12th )
All 6 units of Fukushima Daiichi Nuclear Power Station have been shut down.

Unit 1(Shut down)
- Reactor has been shut down. However, the unit is under inspection due 
  to the explosive sound and white smoke that was confirmed after the big 
  quake occurred at 3:36PM. 
- Also, we have been injecting sea water into the reactor core and then 
  boric acid which absorbs neutron. However, we tentatively ceased the 
  operation factoring in the impact of potential tsunami following the 
  earthquake which occurred at 10:15PM. 

Unit 2(Shut down)
- Reactor and Reactor Core Isolation Cooling System have been shut down. 
  Current reactor water level is lower than normal level, but the water 
  level is steady. After fully securing safety, we are preparing to 
  implement a measure to reduce the pressure of the reactor containment 
  vessels under the instruction of the national government. 

Unit 3(Shut down)
- Reactor has been shut down and we continue injecting water by High 
  Pressure Core Injection System. After fully securing safety, we are 
  preparing to implement a measure to reduce the pressure of the reactor 
  containment vessels under the instruction of the national government.
- Currently, we do not believe there is any reactor coolant leakage 
  inside the reactor containment vessel.

Unit 4 (shut down due to regular inspection)
- Reactor has been shut down and sufficient level of reactor coolant to 
  ensure safety is maintained.
- Currently, we do not believe there is any reactor coolant leakage 
  inside the reactor containment vessel.

Unit 5 (outage due to regular inspection)
- Reactor has been shut down and sufficient level of reactor coolant to 
  ensure safety is maintained.
- Currently, we do not believe there is any reactor coolant leakage 
  inside the reactor containment vessel.

Unit 6 (outage due to regular inspection)
- Reactor has been shut down and sufficient level of reactor coolant to 
  ensure safety is maintained.
- Currently, we do not believe there is any reactor coolant leakage 
  inside the reactor containment vessel.

- Currently, we are implementing a measure to reduce the pressure of the 
  reactor containment vessels of Unit 1. We have confirmed that the 
  radiation exposure of 1 TEPCO employee, who was working inside the 
  reactor building, exceeded 100mSv (106.3mSv). Because of the absence of 
  industrial physician, we were scheduling diagnosis later. However, we 
  had him diagnosed by a specialist physician at the off-site center 
  because of the deconditioning. 

- We measured radioactive materials inside of the nuclear power station 
  area (outdoor) by monitoring car and confirmed that radioactive 
  materials level is higher than ordinary level. Also, the level at 
  monitoring post is higher than ordinary level.

We will continue to monitor in detail the possibility of radioactive 
material being discharged from exhaust stack or discharge canal.

The national government has instructed evacuation for those local 
residents within 20km radius of the periphery because it's possible 
that radioactive materials are discharged.

Two workers of a cooperative firm were injured in the nuclear power 
station premise. One with a broken bone was transported to the hospital 
by an ambulance and the other by a company car.
Further, there are 2 TEPCO employees whose presence has not been 
confirmed.
In addition, one subcontract worker standing near important earth 
quake-proof buidling was unconscious and transported to the hospital 
by an ambulance. When explosive sound was confirmed around the Unit 1 
followed by white smoke, 4 workers were injured and transported to the 
hospital. 

We will continue to take all measures to restore the security of the 
site and to monitor the environment of the site periphery. 
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