May 18, 2011
The plot thickens… Reports out of Japan since Monday have revealed a number of disturbing items. Remarkably, the most recent reports concerning the events at Fukushima Daiichi, March 11 through March 16, suggest that several of this writer’s previous...May 16, 2011
Two on-going questions have remained in the background concerning the Fukushima emergency. First, how did hydrogen find its way into the upper refueling deck of Unit #4 to cause an explosion? There is no evidence of a massive hydrogen release from the pool’s...May 13, 2011
As a result of the recalibration and other maintenance work performed by plant staff on water level instruments for reactor pressure vessel (RPV) #1, it appears that water level has been much, much lower than anyone had previously speculated. In fact, TEPCO and NISA...May 11, 2011
JAIF reports all but one of schools in Fukushima prefecture have soil contamination below the health standards. The one that is above the standard will have the topsoil skimmed off and buried elsewhere, at ~2 feet below ground. At that depth, there will be no addition...May 9, 2011
The airborne activity levels inside Reactor Building #1 have decreased considerably since the six air filtration units have been operating. Workers reopened the building on Sunday and began analyzing the atmosphere with portable air samplers to check on airborne...May 6, 2011
All TEPCO seawater sampling points, at 30 meters, 3 kilometers, 5 km. and 10 km. from the Nuclear Power Station, reveal I-131 and Cs-134/137 concentrations below health standards. All of them. The seas around Fukushima are now “clean”. I have not seen this wonderful...May 4, 2011
Conditions with reactors 1 & 2 have moderated, with no appreciable changes in pressures or temperatures since Monday. Temperatures and pressures for reactor #3 have increased, so the TEPCO operators have increased feed-water flow from 7 to 9 tons per hour....May 2, 2011
At the Fukushima emergency site since Friday… Unit #1 reactor temperature at the feedwater nozzle has risen to 142 oC since Friday, when the 10 ton per hour injection rate (for the two previous days) was lowered to the prior 6 tons per hour rate. Reactor...April 29, 2011
Units 2 & 3 RPV temperatures and pressures continue to decrease. The feedwater nozzle temp. on unit 3 is now at 90 o C, which is below the cold shutdown temperature criteria. Bottom of reactor temperatures on all three RPVs is not currently available. TEPCO has...This site requires a lot of work. We hope you find our efforts valuable and rewarding. Please consider offering your support. There is no minimum amount. Feel free to donate as you see fit, without restriction. Thank you...
