You can find some detailed status reports including temperatures, pressures and water levels within containment vessels at Fukushima Daiichi through March 17 at BraveNewClimate.
Radiation Levels
At 9:20AM (JST) on March 17, radiation level at elevation of 1,000ft [300 meters] above Fukushima Daiichi Nuclear Power Station: 4,130 μSv/h.
At 9:20AM on March 17, radiation level at elevation of 300ft [90 meters] above Fukushima Daiichi Nuclear Power Station: 87,700 μSv/h.
87.7 mSv/hr means that in less than an hour you would get more than the annual permissable dose for a nuclear energy worker (in Canada).
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The Blog at:http://gakuranman.com/great-tohoku-earthquake/ includes info about the reactors and pool temperature:March 21st, 2011
02.27 At a press conference with the Ministry of Defence, it was revealed that continued readings taken by helicopter above units 1-6 showed surface temperatures to be below 100 degrees. This is important data that reinforces the possibility that water is landing in the spent fuel pools and cooling the reactors. Unit 1 = 58C, unit 2= 35C, unit 3 = 62C, unit 4 = 42C, unit 5 = 24C and unit 6 =25C. 100 degrees C is the boiling point of water, so temperatures above this are dangerous because it means the water will evaporate and increase the risk of dry fuel rods – a dire situation that would release a lot of radiation. As of 21.30 yesterday evening 3/20/11, the Tokyo Fire Department has resumed dousing unit 3 with water. The plan is to continue for 6 hours.
Posted by: George Sulocki | March 21, 2011 at 03:54 AM