TEPCO burdened with task of treating contaminated water at damaged nuclear plant, Mainichi Japan, September 21, 2011:
The government is pouring effort into bringing the temperature at Unit 2 of the Fukushima No. 1 Nuclear Power Plant under 100 degrees Celsius to prevent the release of radioactive materials through steam [...]
According to data from the plant’s operator, Tokyo Electric Power Co. (TEPCO), the level of radioactive materials released from the plant between Sept. 1 and 15 reached 200 million becquerels per hour. Meanwhile, dosages of up to 0.4 millisieverts per year were estimated at the boundary of the nuclear power plant – about the same level as that announced by TEPCO in August. [...]
TEPCO has announced for the past two months that the radiation dose at the boundary of the Fukushima Daiichi plant is 0.4 millisieverts/year or 400 microsieverts/year.
The September 22 radiation dose over 4 km from reactor meltdowns was 22 microsieverts/hour or 192,440 microsieverts/year.
Published: September 21st, 2011 at 10:18 pm ET