From the power blackout since 18:57 of 3/18/2013, the coolant system of the spent fuel pool of reactor1, 3 and 4 have been stopped. (cf, [Breaking] Power blackout in Fukushima plant, coolant system of the pools in reactor 1,3,4 lost power [URL]) According to Tepco, the pool water of reactor1 is extremely contaminated compared to other 3 spent fuel pools, which is 5266 times worse than the spent fuel pool of reactor4.       http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130318_01-e.pdf     Iori Mochizuki … Continue reading The radioactive density of SFP of reactor 1 is 24 billion Bq/m3, 5266 times much as reactor4