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...April 27, 2011
Chernobyl Turns 25 On yesterday’s 25th anniversary of Chernobyl, western news media focused on the accident with an intensity not witnessed for more than 20 years. Much of the reason behind the news media’s “Chernobyl resurrection” has been due to the...April 25, 2011
Conditions continue to improve at Fukushima Daiichi. Our first update is clearly the best news to come out of Fukushima Daiichi since the explosion of Unit #1 refueling deck on March 12.Seawater samples taken at nine of the 10 MEXT locations, 30 km off-shore, show no...April 22, 2011
Reactor #1 water temperatures have dropped considerably since Wednesday, with feedwater nozzle temperature of 137 oC and RPV bottom head at 113 oC. Temperatures on reactor’s 2 & 3 have also decreased, but only a few degrees Celsius for each. Pressures in all...April 20, 2011
Reactor temperatures and pressures in the three Daiichi reactors of immediate concern continue to decrease. #1 feedwater nozzle reads 164 oC, and the bottom of the RPV reads 114 oC. The feedwater nozzle on Unit #2 reads 133 oC. Unit #3 nozzle reads 98 oC and the RPV...April 18, 2011
Temperatures and pressures in reactor pressure vessels 1, 2 & 3 continue to decrease. The feedwater nozzle temperatures are 179 degrees C for #1, 141 C for 32, and 92 C for #3. Pressures for # 2 & 3 indicate atmospheric, while #1 pressure is down to ~60 psi....April 15, 2011
Conditions in and around the Fukushima Daiichi power complex continue to improve. Reactor water temperatures slowly decrease for Units 2 & 3, and there seems to have been a major drop in #1 reactor water temperature since yesterday of more than 20 degrees C. (Now...April 14, 2011
From on-going Japanese Press reports, it seems TEPCO and NISA believe Unit #2 reactor fuel cell has the most damage, compared to reactors 1 & 3. In fact, they think much of Unit #2’s fuel cell has melted. As a result, this writer has been puzzled for more...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...
